Operating and maintaining the John Deere 35G Compact Excavator requires a thorough understanding of safety procedures. This machine, while powerful and efficient, can pose significant risks if operated or maintained improperly. Always read and understand the entire operation and maintenance manual before starting the engine or performing any maintenance tasks. This manual provides critical information regarding potential hazards, safe operating procedures, and proper maintenance techniques. Familiarize yourself with the machine's controls, indicators, and safety features before commencing any work, and never operate the excavator if you are fatigued, under the influence of drugs or alcohol, or are otherwise impaired.
Before starting the excavator, perform a walk-around inspection to identify any potential hazards or issues. Check for loose or damaged components, leaks, and ensure all guards and safety devices are in place and functioning correctly. Keep the work area clear of obstacles, debris, and unnecessary personnel. Always be aware of your surroundings, including overhead obstructions such as power lines and underground utilities. Maintain a safe distance from any obstacles, and use a spotter if necessary to ensure safe operation. Report any damage or malfunction immediately to the appropriate personnel, and never attempt to operate a machine that is known to be unsafe.
Wearing the correct personal protective equipment (PPE) is crucial when operating or maintaining the John Deere 35G Compact Excavator. PPE protects you from potential hazards such as flying debris, loud noise, and contact with hazardous materials. Always wear a hard hat that meets ANSI Z89.1 standards to protect your head from falling objects or impacts. Safety glasses or a face shield that meets ANSI Z87.1 standards should be worn to protect your eyes from dust, debris, and chemical splashes. Hearing protection, such as earplugs or earmuffs with a noise reduction rating (NRR) appropriate for the work environment, should be used to prevent hearing damage from prolonged exposure to loud noise.
Wear appropriate work gloves to protect your hands from cuts, abrasions, and contact with hydraulic fluids or other hazardous substances. Sturdy work boots with steel toes and slip-resistant soles should be worn to provide foot protection and traction on uneven surfaces. High-visibility clothing, such as a safety vest or jacket, should be worn to ensure you are easily visible to other workers and equipment operators, especially in low-light conditions or areas with heavy traffic. Consider additional PPE, such as respiratory protection, if the work environment contains dust, fumes, or other airborne contaminants. Regularly inspect your PPE for damage or wear, and replace it as needed to ensure it provides adequate protection.
The John Deere 35G Compact Excavator is equipped with safety decals that provide important information about potential hazards and safe operating procedures. These decals are strategically placed throughout the machine and serve as a constant reminder of the safety precautions that must be followed. It is essential to familiarize yourself with the location and meaning of each safety decal before operating or maintaining the excavator. Regularly inspect the decals to ensure they are clean, legible, and in good condition. Replace any damaged or missing decals immediately to maintain clear communication of safety information.
The safety decals typically cover topics such as pinch points, crushing hazards, high-pressure fluids, electrical hazards, and the importance of reading the operator's manual. Pay close attention to decals that warn of specific dangers, such as the swing radius of the excavator or the potential for rollover accidents. Understand the symbols used on the decals and their corresponding meanings. If you are unsure about the meaning of a particular decal, consult the operator's manual or ask a qualified technician for clarification. Never operate the excavator if you are unsure about the location or meaning of any safety decals.
Knowing the emergency shutdown procedures for the John Deere 35G Compact Excavator is critical in the event of a malfunction or accident. A swift and decisive shutdown can prevent further damage to the machine and minimize the risk of injury to personnel. The primary method for emergency shutdown is to turn the ignition key to the "OFF" position. This will immediately stop the engine and disable most of the machine's functions. However, in some situations, additional steps may be necessary to ensure a complete and safe shutdown.
If the excavator is experiencing a hydraulic system failure or other critical malfunction, immediately lower the boom and bucket to the ground to prevent uncontrolled movement. Engage the parking brake to secure the machine and prevent it from rolling. If possible, disconnect the battery to eliminate any remaining electrical power to the machine. In the event of a fire, use a fire extinguisher specifically designed for use on machinery. Familiarize yourself with the location of the fire extinguisher and how to use it properly. Report the incident to the appropriate personnel as soon as possible and follow all emergency procedures outlined in the operator's manual and by your employer.
Before starting your John Deere 35G compact excavator, a thorough pre-operation check is crucial for ensuring safe and efficient operation. This process helps identify potential issues before they escalate into costly repairs or, even worse, dangerous situations. Begin by visually inspecting the entire machine for any signs of damage, such as cracked hoses, leaks, or loose components. Pay particular attention to the hydraulic system, looking for any weeping around fittings and cylinders. Check the fluid levels, including engine oil, coolant, hydraulic fluid, and fuel, ensuring they are within the recommended ranges as indicated in the gauges and dipsticks, and refill as needed. These simple checks can save you time, money, and potentially prevent accidents on the job site.
Next, examine the undercarriage for any debris, excessive wear on the tracks, or loose bolts. Ensure the track tension is correct, as improperly tensioned tracks can lead to premature wear and reduced performance. Inspect the cutting edges of the bucket for damage or excessive wear, and replace them if necessary to maintain optimal digging efficiency. Check the condition of the safety devices, such as the seatbelt, horn, and lights, verifying that they are functioning correctly. Finally, clear the cab of any obstructions and adjust the seat and mirrors for optimal visibility. Taking the time to conduct these pre-operation checks is an investment in the longevity and safety of your machine.
Starting the engine of your John Deere 35G is a straightforward process, but it's essential to follow the correct procedure to avoid damage to the machine. First, ensure that the parking brake is engaged and all hydraulic controls are in the neutral position. Insert the key into the ignition and turn it to the "ON" position, allowing the engine to preheat if necessary, especially in cold weather conditions. After the preheating cycle, turn the key further to the "START" position and hold it until the engine starts. Avoid cranking the engine for extended periods, as this can overheat the starter motor. If the engine fails to start after several attempts, consult the troubleshooting section of this manual for further assistance.
To stop the engine, release any pressure on the hydraulic controls and allow the engine to idle for a few minutes to cool down. This helps to prevent thermal shock and prolongs the life of the turbocharger (if equipped). Turn the ignition key to the "OFF" position, and the engine should shut down smoothly. Remove the key from the ignition to prevent unauthorized use. After stopping the engine, it's a good practice to visually inspect the engine compartment for any signs of leaks or other abnormalities. Performing these steps correctly ensures a long and reliable service life for your John Deere 35G.
Familiarizing yourself with the operating controls and instruments of the John Deere 35G is paramount for safe and efficient operation. The main controls consist of joystick controls for boom, stick, and bucket movements, as well as travel levers or pedals for moving the machine forward, backward, and turning. The instrument panel displays critical information such as engine temperature, fuel level, and hydraulic pressure. Understanding the gauges and warning lights can help you detect potential problems early on. The throttle control adjusts the engine speed, and it should be used judiciously to balance power and fuel efficiency. Be sure to consult the operator's manual for detailed descriptions of each control and instrument.
Take time to practice operating the controls in a safe and open area before tackling complex tasks. Get a feel for the responsiveness of the hydraulics and the sensitivity of the travel controls. Pay attention to the swing brake, which is crucial for maintaining stability on slopes. Learning to coordinate the various controls will allow you to perform tasks smoothly and efficiently. Always prioritize safety and avoid making sudden, jerky movements that could damage the machine or endanger yourself or others. Regular practice and a thorough understanding of the controls are essential for becoming a skilled and confident operator.
Proper excavation techniques are essential for maximizing the efficiency and minimizing the wear and tear on your John Deere 35G. Begin by carefully planning your excavation project, considering factors such as the type of soil, the depth of the excavation, and the presence of underground utilities. Before starting any digging, always check for buried cables and pipes to avoid potentially dangerous and costly incidents. Select the appropriate bucket size for the task at hand. For dense materials, a smaller bucket provides better digging force, while a larger bucket is suitable for moving loose materials.
When digging, use a smooth and controlled motion, avoiding jerky movements that can strain the hydraulic system. Maintain a proper digging angle to maximize the bucket's cutting efficiency and minimize resistance. Utilize the boom, stick, and bucket cylinders in a coordinated manner to achieve the desired excavation profile. Avoid over-extending the boom or stick, as this can reduce stability and increase the risk of tipping. When working on slopes, always position the machine perpendicular to the slope to maintain balance. Practice these techniques regularly to become a more efficient and productive operator.
Safe and efficient travel and maneuvering are critical aspects of operating a compact excavator. Before moving the John Deere 35G, ensure the path is clear of obstacles, debris, and personnel. Lower the blade (if equipped) for increased stability, especially when traveling over uneven terrain. Engage the travel levers or pedals to move the machine forward or backward, and use the steering controls to turn. Avoid making sudden turns at high speed, as this can increase the risk of track slippage and loss of control. When traveling on slopes, always move directly up or down the slope, never across it, to prevent tipping.
Be mindful of the machine's dimensions and weight, especially when maneuvering in tight spaces. Use caution when approaching obstacles such as trees, fences, or buildings, and avoid contact to prevent damage. When traveling on public roads, ensure the machine is properly secured to a trailer and that all lights and signals are functioning correctly. Follow all local traffic laws and regulations. Always prioritize safety and exercise caution when traveling and maneuvering the John Deere 35G to prevent accidents and damage to the machine.
Operating a compact excavator on slopes requires extra caution and adherence to specific safety procedures. Before operating on a slope, assess the terrain and determine the maximum safe operating angle for your John Deere 35G. Consult the operator's manual for the machine's maximum slope rating and never exceed it. Always position the machine so that the tracks are perpendicular to the slope, with the engine uphill whenever possible. This maximizes stability and reduces the risk of tipping. Avoid making sudden movements or sharp turns on slopes, as this can shift the machine's center of gravity and increase the risk of losing control.
When digging on a slope, be especially careful to maintain balance and avoid over-extending the boom or stick. Utilize the blade (if equipped) to provide additional support and stability. Regularly inspect the undercarriage for debris or loose material that could affect traction. If the machine starts to slide or lose traction, immediately lower the bucket to the ground to provide additional stability and regain control. Remember that slope operation is inherently risky, so always exercise extreme caution and prioritize safety.
While the John Deere 35G is primarily designed for excavation, it can also be used for lifting operations with the appropriate attachments and precautions. Before attempting any lifting, ensure the machine is equipped with a certified lifting hook or shackle. Determine the weight of the load to be lifted and verify that it is within the machine's lifting capacity at the given reach. Consult the load chart in the operator's manual for the specific lifting capacities at various boom and stick angles. Always use proper rigging techniques and inspect the lifting equipment for damage or wear before each lift.
When lifting, maintain a slow and controlled motion, avoiding sudden jerks or movements that could destabilize the machine. Keep the load close to the machine to minimize the risk of tipping. Never lift a load over personnel or allow anyone to stand under the suspended load. Ensure the load is properly balanced and secured before lifting. Be aware of overhead obstructions such as power lines or trees. After completing the lift, carefully lower the load to the ground and release the tension on the rigging. Following these procedures helps ensure safe and efficient lifting operations with your John Deere 35G.
Proper parking procedures are essential for ensuring the safety and security of your John Deere 35G when it's not in use. Choose a level and stable surface for parking the machine. Avoid parking on slopes or in areas where the ground is soft or unstable. Lower the bucket and blade (if equipped) to the ground to provide additional support and stability. Engage the parking brake to prevent the machine from rolling. Turn off the engine and remove the key from the ignition to prevent unauthorized use.
If parking the machine for an extended period, consider disconnecting the battery to prevent it from draining. Secure the machine to prevent theft or vandalism. This may involve parking it in a secure location, locking the cab, and removing any valuable items. After parking the machine, perform a final walk-around inspection to ensure that all safety procedures have been followed. Following these procedures will help protect your investment and ensure the safety of others.
Daily maintenance is the cornerstone of a long and productive life for your John Deere 35G Compact Excavator. Performing these simple checks and tasks at the beginning of each work day can prevent major problems down the line and significantly reduce downtime. A few minutes spent on daily maintenance is a worthwhile investment compared to the hours of repair and lost productivity that can result from neglect. Ensure you complete all items on the daily checklist before starting the engine and commencing operations.
The daily maintenance checklist should include, at a minimum, inspecting fluid levels – engine oil, hydraulic fluid, coolant, and fuel. Look for any signs of leaks around the engine, hydraulic components, and undercarriage. Walk around the entire machine, paying close attention to hoses, fittings, and cylinders. Confirm that all safety decals are in place and legible. Check the condition of the tracks or tires, looking for damage, proper tension or inflation, and any debris lodged within.
Don't forget the operator's station. Clean the cab windows for optimal visibility and ensure that all controls (levers, pedals, switches) move freely and respond as expected. Test the horn and all lights, including headlights, taillights, and work lights. Finally, check the condition of the seatbelt and other safety equipment. A functional operator's station contributes significantly to a safe and efficient workday.
Weekly maintenance takes daily care a step further, delving into more detailed inspections and preventative measures. These tasks, ideally performed every 50 operating hours or once a week, depending on which comes first, are crucial for maintaining peak performance and preventing unexpected breakdowns. Schedule time each week specifically for this maintenance to avoid delaying critical repairs. Regular weekly maintenance provides many benefits including increasing the life of expensive components.
Check the air filter elements and clean or replace them as needed. A dirty air filter restricts airflow to the engine, reducing power and fuel efficiency. Inspect the condition of the hydraulic hoses and fittings, tightening any loose connections. Pay close attention to areas where hoses are exposed to friction or heat. Lubricate all grease fittings according to the lubrication chart, ensuring proper coverage to minimize wear and tear on moving parts. Use the correct type of grease as specified in the lubrication chart for optimal performance and longevity.
Also, inspect the battery terminals for corrosion and clean them as needed. Ensure the battery cables are securely connected. Check the fan belt tension and adjust if necessary. Examine the condition of the cutting edges on the bucket and other attachments. Sharpen or replace them as needed to maintain optimal digging performance. Inspect the swing bearing for proper lubrication and any signs of excessive wear.
Monthly maintenance, performed every 200 operating hours or once a month, provides a deeper dive into the machine's systems. This level of maintenance requires more time and attention to detail but is essential for preventing long-term problems and maximizing the excavator's lifespan. Consistent monthly maintenance will allow you to find issues early before they cause significant damage to expensive components. Ignoring monthly maintenance can cause premature failures.
Change the engine oil and filter according to the manufacturer's specifications. Use the correct type of oil and filter for your machine. Analyze the used oil for any signs of contamination or wear. This can provide valuable insights into the engine's internal condition. Inspect the fuel filter and replace it if necessary. Contaminated fuel can damage the fuel injection system.
Check the hydraulic oil level and condition. If the oil is cloudy or discolored, it may be necessary to change it. Inspect the hydraulic system for leaks, paying close attention to pumps, valves, and cylinders. Examine the final drives for leaks and proper oil level. Grease the propel motors. Inspect and adjust the track tension, ensuring it is within the manufacturer's recommended range. Be sure to properly dispose of any used fluids according to local regulations.
Beyond the routine daily, weekly, and monthly tasks, scheduled servicing at specific hour intervals is critical for the long-term health of your John Deere 35G. These services typically involve more complex procedures and may require specialized tools or expertise. Consult your John Deere dealer for assistance with these scheduled services or, if you have the proper training and equipment, follow the procedures outlined in the service manual. Adhering to the recommended service intervals is paramount to maintaining warranty coverage and preventing major failures.
Scheduled servicing includes tasks such as changing hydraulic oil and filters at specified intervals (e.g., every 1000 or 2000 hours), inspecting and adjusting valve clearances, cleaning the fuel tank, inspecting the turbocharger (if equipped), and checking the condition of the engine mounts. The cooling system should be thoroughly flushed and refilled with new coolant at the recommended interval. Inspect the water pump for any signs of leakage or wear.
It's also essential to inspect the electrical system, including wiring harnesses, connectors, and sensors. Check the condition of the starter and alternator. Recalibrate all sensors and controllers. Have a certified technician check and adjust the fuel injectors. Finally, periodically inspect the structural components of the machine, such as the frame, boom, and arm, for any signs of cracks or damage. Repair any damage promptly to prevent further deterioration.
Proper lubrication is essential for minimizing wear and tear on moving parts and extending the lifespan of your John Deere 35G Compact Excavator. The lubrication chart provides a detailed guide to the location of all grease fittings and the recommended lubrication intervals. Always use the correct type of grease as specified in the chart. Failure to use the correct grease can lead to premature wear and failure of components. Make sure you understand the locations of the grease fittings to ensure no parts are missed during routine services.
The lubrication chart will typically include fittings on the boom, arm, bucket linkage, swing bearing, propel motors, and other moving parts. Clean each fitting before applying grease to prevent contaminants from entering the bearing surfaces. Use a grease gun to apply grease until fresh grease is visible. Do not over-grease, as this can damage seals. Pay close attention to fittings that are difficult to access or those located in harsh environments. These fittings may require more frequent lubrication.
Keep a record of all lubrication activities, including the date, location, and type of grease used. This will help you track your maintenance schedule and identify any potential problems. If you are unsure about the location of a grease fitting or the proper type of grease to use, consult your John Deere dealer or refer to the service manual. Remember, consistent and proper lubrication is a key factor in maintaining the reliability and longevity of your excavator.
Maintaining the correct engine oil level is crucial for the longevity and performance of your John Deere 35G Compact Excavator. Operating the excavator with insufficient or excessive oil can lead to serious engine damage, including premature wear, overheating, and even catastrophic failure. Therefore, regularly checking the oil level should be a routine part of your pre-operation checks. To ensure an accurate reading, park the excavator on a level surface, allow the engine to cool down for at least 15 minutes after operation, and locate the oil dipstick, which is typically located on the engine block, clearly marked and accessible. Remember to always consult your operator's manual for the exact location and specifications for your specific model.
To check the oil level, carefully remove the dipstick and wipe it clean with a lint-free cloth. Then, fully reinsert the dipstick into the dipstick tube, ensuring it is seated properly. Remove the dipstick again, and observe the oil level indicated on the dipstick. The oil level should be between the "Min" and "Max" marks, or within the acceptable range specified in your operator's manual. If the oil level is below the "Min" mark, add the correct type of engine oil until it reaches the desired level. Be careful not to overfill, as this can also be detrimental to engine performance. After adding oil, recheck the level to confirm it's within the acceptable range.
Regular oil and filter changes are paramount to maintaining the health and efficiency of your excavator's engine. Old oil becomes contaminated with dirt, debris, and combustion byproducts, which reduces its lubricating properties and increases engine wear. The oil filter removes these contaminants, preventing them from circulating through the engine and causing damage. Failing to change the oil and filter at the recommended intervals can lead to sludge buildup, reduced engine performance, and ultimately, premature engine failure. Refer to your operator's manual for the recommended oil change interval, typically expressed in operating hours or calendar months.
When performing an oil and filter change, ensure you have the correct type and quantity of engine oil as specified in your operator's manual, a new oil filter of the correct part number, a wrench to remove the old filter, a drain pan to catch the used oil, and appropriate safety gloves and eye protection. Warm up the engine slightly to allow the oil to flow more freely, then shut it off and allow it to cool down enough to handle safely. Locate the oil drain plug on the engine's oil pan and carefully remove it, allowing the old oil to drain completely into the drain pan. Once the oil has drained, replace the drain plug with a new crush washer (if applicable) and tighten it to the specified torque.
Next, remove the old oil filter using the filter wrench, being careful to catch any remaining oil that may spill. Lightly lubricate the rubber gasket of the new oil filter with fresh engine oil and screw the new filter onto the engine by hand until the gasket makes contact. Then, tighten the filter an additional half to three-quarters of a turn, or as specified in your operator's manual. Fill the engine with the correct amount of new engine oil, using a funnel to prevent spills. After filling, check the oil level with the dipstick and add more oil if necessary to reach the correct level. Start the engine and let it idle for a few minutes, checking for any leaks around the drain plug and oil filter. Finally, shut off the engine and recheck the oil level after a few minutes, adding more oil if needed.
The air filter plays a critical role in protecting your engine from harmful airborne contaminants, such as dust, dirt, and debris. These contaminants can cause significant engine wear and damage if they enter the combustion chamber. A clean air filter ensures optimal engine performance, fuel efficiency, and reduced emissions. Regular cleaning and replacement of the air filter are essential preventative maintenance tasks. A clogged or dirty air filter restricts airflow to the engine, leading to reduced power, increased fuel consumption, and potential engine damage.
Depending on your operating environment, the air filter may need to be cleaned or replaced more frequently. In dusty or dirty conditions, more frequent maintenance is crucial. To clean the air filter, carefully remove it from its housing, following the instructions in your operator's manual. Inspect the filter for any signs of damage, such as tears or punctures. If the filter is damaged, it should be replaced immediately. If the filter is not damaged, it can be cleaned using compressed air. Direct the air from the inside out, using a low pressure setting to avoid damaging the filter media.
Avoid using water or solvents to clean the air filter, as these can damage the filter media. After cleaning, inspect the filter again to ensure that all dirt and debris have been removed. If the filter remains dirty or shows signs of excessive wear, it should be replaced. When installing a new or cleaned air filter, ensure that it is properly seated in its housing and that all seals are in good condition. Regularly inspect the air filter and its housing for any leaks or damage, and address any issues promptly to prevent contaminants from entering the engine.
The fuel filter's primary function is to remove impurities from the fuel before it reaches the engine's fuel injectors or carburetor. This prevents these sensitive components from becoming clogged or damaged by contaminants such as dirt, rust, and water. A clean fuel filter ensures smooth engine operation, optimal fuel efficiency, and prevents costly repairs to the fuel system. Failing to replace the fuel filter at the recommended intervals can lead to reduced engine power, poor fuel economy, and even engine stalling. Refer to your operator's manual for the recommended fuel filter replacement interval.
Before replacing the fuel filter, it's essential to depressurize the fuel system to prevent fuel spillage. Consult your operator's manual for the specific procedure for your excavator model. Typically, this involves disconnecting the fuel pump or relieving pressure through a designated valve. Once the fuel system is depressurized, locate the fuel filter, which is usually located along the fuel line between the fuel tank and the engine. Place a container underneath the filter to catch any spilled fuel. Carefully disconnect the fuel lines from the old filter, noting the direction of fuel flow.
Install the new fuel filter, ensuring that it is oriented correctly according to the markings on the filter housing or the instructions in your operator's manual. Connect the fuel lines to the new filter, ensuring that they are securely fastened. After installing the new filter, prime the fuel system to remove any air that may have entered the lines. This typically involves turning the ignition key to the "on" position without starting the engine, allowing the fuel pump to run for a few seconds. Check for any fuel leaks around the filter connections and address any leaks immediately. Start the engine and let it idle for a few minutes, monitoring for any signs of fuel starvation or unusual engine behavior.
The cooling system plays a vital role in regulating engine temperature, preventing overheating and ensuring optimal engine performance. The cooling system consists of several components, including the radiator, coolant pump, thermostat, and coolant hoses. Maintaining the cooling system involves regularly checking the coolant level, inspecting the coolant hoses for leaks or damage, and flushing and replacing the coolant at the recommended intervals. A properly functioning cooling system prevents engine damage from overheating, prolongs engine life, and ensures consistent performance.
Check the coolant level regularly by inspecting the coolant reservoir or the radiator itself. The coolant level should be between the "Min" and "Max" marks on the reservoir or near the top of the radiator. If the coolant level is low, add a mixture of coolant and distilled water, following the manufacturer's recommendations. Inspect the coolant hoses for any signs of cracks, leaks, or swelling. Replace any damaged hoses immediately to prevent coolant loss and potential engine damage. Periodically inspect the radiator for any signs of damage or corrosion, and clean any debris that may be blocking airflow.
Flushing the cooling system removes accumulated sediment, rust, and other contaminants that can reduce its efficiency. Refer to your operator's manual for the recommended coolant flush interval and the proper procedure. When flushing the cooling system, use a coolant flush solution specifically designed for your engine type. After flushing, refill the system with the correct mixture of coolant and distilled water, following the manufacturer's recommendations. Bleed any air from the cooling system by opening the bleeder valve, if equipped, or by running the engine with the radiator cap removed until all air has been purged. Regularly monitor the engine temperature gauge to ensure that the cooling system is functioning properly. If you notice any signs of overheating, such as a rapidly rising temperature gauge or steam coming from the engine, shut off the engine immediately and investigate the cause.
Maintaining the proper hydraulic fluid level is crucial for the smooth and efficient operation of your John Deere 35G Compact Excavator. Insufficient fluid can lead to pump cavitation, reduced digging power, and potential damage to hydraulic components. Conversely, overfilling the system can cause leaks and overheating. Therefore, regularly checking and adjusting the hydraulic fluid level is a vital preventative maintenance task.
To check the hydraulic fluid level, first, ensure the excavator is parked on a level surface with the engine off and the hydraulic system cooled down. Locate the hydraulic fluid reservoir, typically found at the rear of the machine. Clean the area around the reservoir sight gauge or dipstick to prevent contaminants from entering the system. Carefully inspect the sight gauge or dipstick, noting the fluid level in relation to the "FULL" and "ADD" marks. If the fluid level is below the "ADD" mark, add the recommended John Deere hydraulic fluid until it reaches the "FULL" mark. Always use the correct type of hydraulic fluid as specified in your operator's manual to ensure optimal performance and longevity of the hydraulic system components.
After adding fluid, double-check the level and ensure the reservoir cap is securely tightened. It's also a good practice to visually inspect the hydraulic system for any signs of leaks, such as wet spots around hoses, fittings, or cylinders. Addressing leaks promptly can prevent further fluid loss and potential damage to the excavator. Remember to record the date and fluid level in your maintenance log for future reference. Consistent monitoring of the hydraulic fluid level is a key component of preventative maintenance and helps to avoid costly repairs.
The hydraulic filter plays a critical role in keeping the hydraulic system clean by removing contaminants such as dirt, debris, and metal particles. A clogged or dirty hydraulic filter can restrict fluid flow, leading to reduced hydraulic system performance and potential damage to the hydraulic pump and other components. Regular filter replacement is essential for maintaining the health and efficiency of the hydraulic system.
Before replacing the hydraulic filter, refer to your operator's manual for the recommended replacement interval and the correct filter specification. Gather the necessary tools, including a filter wrench, drain pan, and new hydraulic filter. Position the drain pan beneath the filter to catch any spilled fluid. Using the filter wrench, carefully loosen the old filter. Once loosened, unscrew the filter by hand, being prepared for some fluid spillage. Clean the filter mounting base thoroughly, ensuring that the sealing surface is free of debris.
Lightly lubricate the rubber gasket on the new filter with clean hydraulic fluid. Screw the new filter onto the mounting base by hand until the gasket makes contact. Then, tighten the filter an additional half to three-quarters of a turn, following the instructions printed on the filter. Avoid overtightening, as this can damage the filter or the mounting base. After installing the new filter, start the engine and allow it to idle for a few minutes. Check for any leaks around the filter and tighten if necessary. Finally, check the hydraulic fluid level and add fluid if needed. Properly disposing of the used filter and fluid is important for environmental responsibility.
Hydraulic system problems can manifest in various ways, including reduced digging power, slow or erratic cylinder movement, unusual noises, or overheating. A systematic approach to troubleshooting is essential for diagnosing and resolving these issues effectively. Start by visually inspecting the system for any obvious problems, such as leaks, damaged hoses, or loose connections. Check the hydraulic fluid level and condition, noting any signs of contamination or discoloration.
If the hydraulic system is operating sluggishly, check the hydraulic filter for clogging. A restricted filter can severely limit fluid flow and reduce performance. If the problem persists, investigate the hydraulic pump for potential damage or wear. Listen for unusual noises, such as whining or grinding, which can indicate pump problems. Check the hydraulic cylinders for leaks or internal damage. A leaking cylinder can cause reduced digging power and erratic movement. Also, ensure that all control valves are functioning correctly and are not sticking or binding.
In more complex cases, it may be necessary to use a hydraulic pressure gauge to check the system pressure at various points. Comparing the readings to the specifications in the operator's manual can help identify pressure drops or other abnormalities. If you are not comfortable performing these tests, it is best to consult a qualified mechanic who specializes in hydraulic systems. Remember to always prioritize safety when working on hydraulic systems, as high-pressure fluid can be dangerous. Relieve the pressure in the system before disconnecting any lines or components, and wear appropriate safety gear, such as eye protection and gloves. Proper diagnosis and repair of hydraulic issues are critical for maintaining the excavator's performance and preventing further damage.
Maintaining proper track tension is crucial for optimal performance and longevity of your John Deere 35G Compact Excavator's undercarriage. Tracks that are too tight can place undue stress on the drive motor, rollers, and idlers, leading to premature wear and potential component failure. Conversely, excessively loose tracks can result in poor traction, increased risk of track slippage, and potential derailment, especially in challenging terrain. Regularly checking and adjusting track tension ensures efficient power transfer and minimizes stress on the undercarriage components. Consult your machine's operator manual for the specific track tension specifications and adjustment procedures relevant to your model. Ignoring track tension can result in unscheduled downtime and costly repairs.
The adjustment process typically involves using a grease gun to add or release grease from the track adjuster cylinder. To tighten the track, slowly and carefully add grease to the cylinder until the track tension reaches the recommended range. Overfilling the cylinder can damage the seals and components, so it's imperative to monitor the tension gauge and stop when the correct tension is achieved. To loosen the track, carefully open the grease fitting and allow grease to escape slowly. Again, monitor the tension gauge to ensure you're not releasing too much grease. Always relieve pressure gradually to prevent any sudden releases of force that could cause injury. After adjusting the track tension, operate the machine briefly and recheck the tension to ensure it remains within the specified range.
Regularly inspecting the tracks is essential for identifying potential problems early and preventing costly repairs. A thorough inspection should include checking for signs of wear, damage, or misalignment on the track shoes, links, pins, and bushings. Look for cracks, excessive wear, or bending in the track shoes, as these can compromise the track's structural integrity. Inspect the links for wear or damage, paying particular attention to the areas where they connect to the pins and bushings. Check for any debris lodged between the track and the rollers, as this can accelerate wear and tear. Ignoring minor track problems can quickly lead to more significant issues, so addressing them promptly can save you time and money in the long run.
If you discover damaged or worn components during your inspection, it's crucial to address them as soon as possible. Worn pins and bushings can be replaced to restore proper track alignment and reduce wear on other components. Damaged track shoes may need to be repaired or replaced, depending on the severity of the damage. Always use genuine John Deere replacement parts to ensure proper fit and performance. If you lack the necessary expertise or equipment to perform these repairs yourself, it's best to consult with a qualified service technician. Proper track maintenance and repair not only extend the life of your tracks but also contribute to the overall safety and reliability of your excavator.
The rollers and idlers play a vital role in supporting the weight of the machine and guiding the tracks. Proper maintenance of these components is essential for preventing premature wear and ensuring smooth, efficient operation. Regularly inspect the rollers and idlers for signs of wear, damage, or leakage. Check for any cracks, flat spots, or excessive wear on the roller surfaces. Look for any signs of oil leakage from the seals, as this indicates a potential problem with the bearing lubrication. Damaged or worn rollers and idlers can cause increased friction, leading to higher fuel consumption and reduced machine performance.
Lubricating the rollers and idlers according to the manufacturer's recommendations is crucial for extending their lifespan. Use a high-quality grease that is specifically designed for heavy-duty applications. Regularly check the oil levels in the idlers and top them off as needed. If you notice any unusual noises coming from the rollers or idlers, such as grinding or squealing, it's essential to investigate the problem immediately. Ignoring these noises can lead to bearing failure, which can result in costly repairs and downtime. Proper roller and idler maintenance contributes significantly to the overall efficiency and reliability of your John Deere 35G Compact Excavator.
Maintaining a healthy battery is crucial for the reliable operation of your John Deere 35G compact excavator. The battery provides the necessary power to start the engine, operate electrical components, and maintain system memory. Neglecting battery maintenance can lead to starting problems, reduced performance, and even premature battery failure. Regular inspection, cleaning, and proper charging procedures are essential for maximizing the lifespan and performance of your excavator's battery. Proper battery maintenance not only ensures reliable operation, but also prevents potentially costly repairs down the road.
Begin by visually inspecting the battery for any signs of damage, such as cracks, swelling, or corrosion around the terminals. Ensure the terminals are clean and free of corrosion. If corrosion is present, carefully disconnect the battery cables, starting with the negative terminal, and clean the terminals and cable clamps using a wire brush and a baking soda solution (mix baking soda with water to form a paste). Rinse the terminals thoroughly with clean water and dry them completely before reconnecting the cables, making sure to tighten them securely. Coat the terminals with a thin layer of dielectric grease to prevent future corrosion. Always wear safety glasses and gloves when working with batteries, as they contain corrosive acid.
The John Deere 35G uses a 12-volt battery. When charging the battery, use a charger specifically designed for 12-volt lead-acid batteries. Follow the charger manufacturer's instructions carefully. Avoid overcharging the battery, as this can damage the internal components. If the excavator is not used for extended periods, consider using a trickle charger to maintain the battery's charge. Periodically check the battery's water level (if applicable for your battery type) and add distilled water as needed to keep the plates submerged. This prevents the plates from drying out and becoming damaged, which can significantly shorten the battery's life.
Fuses are vital safety devices that protect the electrical circuits of your John Deere 35G from overloads and short circuits. When a circuit experiences excessive current flow, the fuse blows, interrupting the circuit and preventing damage to components. Knowing how to identify and replace blown fuses is essential for maintaining the excavator's electrical system. Ignoring blown fuses or replacing them with incorrect amperage fuses can lead to serious electrical problems, including damage to wiring and electronic control units.
The fuse box is typically located in the cab, often under the seat or behind a panel. Refer to the excavator's operator's manual to locate the specific fuse box for your model. Before replacing any fuse, turn off the ignition and all electrical accessories to prevent accidental short circuits. Identify the blown fuse by its blackened or broken filament. The fuse diagram, also located in the operator's manual or on the fuse box cover, indicates the amperage and function of each fuse.
Always replace a blown fuse with a fuse of the same amperage. Using a fuse with a higher amperage can allow excessive current to flow, potentially damaging the wiring and components the fuse is designed to protect. If the same fuse blows repeatedly, it indicates a persistent problem in the circuit. In such cases, consult a qualified technician to diagnose and repair the underlying issue. Never bypass a fuse or use a piece of wire as a substitute, as this can create a fire hazard and cause significant damage.
Electrical problems can range from simple issues like a blown fuse to more complex malfunctions involving wiring, sensors, or control units. When troubleshooting electrical problems on your John Deere 35G, a systematic approach is crucial. Start by gathering information about the problem, such as when it occurs, what symptoms are present, and any recent repairs or modifications that may be related. A clear understanding of the problem will help narrow down the possible causes and guide your troubleshooting efforts.
Begin with the basics, such as checking the battery voltage, inspecting connections for corrosion or looseness, and verifying that all fuses are intact. Use a multimeter to check for voltage and continuity in circuits suspected of being faulty. Refer to the excavator's wiring diagram, available in the service manual, to trace circuits and identify potential problem areas. Carefully examine wiring harnesses for any signs of damage, such as frayed insulation, broken wires, or pinched connectors.
If the problem persists, it may be necessary to consult a qualified technician with specialized diagnostic equipment. Modern excavators often rely on sophisticated electronic control units (ECUs) to manage various functions. These ECUs can store diagnostic trouble codes (DTCs) that provide valuable clues about the nature and location of the problem. A technician can use a diagnostic scanner to retrieve these DTCs and interpret them to pinpoint the source of the fault. Attempting to repair complex electrical problems without the proper knowledge and equipment can be dangerous and may lead to further damage.
Diagnosing issues with your John Deere 35G Compact Excavator can seem daunting, but a systematic approach will save time and prevent unnecessary repairs. Start by carefully observing the symptoms. Is the engine struggling to start? Is the hydraulic system performing sluggishly? Or is the machine producing unusual noises? Documenting these observations provides invaluable clues. Then, move on to checking the basics, such as fluid levels, battery voltage, and the condition of filters. Often, simple problems have simple solutions, and catching them early prevents further damage. Remember safety is paramount; always disconnect the battery before performing any electrical repairs.
One of the most frequent issues reported is a loss of hydraulic power. This can manifest as slow or weak movement of the boom, arm, or bucket. A common cause is a low hydraulic fluid level. Check the reservoir and top it off with the recommended fluid if necessary. Another potential culprit is a clogged hydraulic filter. Replace the filter as per the maintenance schedule. If the problem persists after checking these, there could be a more serious issue with the hydraulic pump or control valves. These components are best left to a qualified technician with specialized diagnostic tools.
Engine starting problems are another common headache for excavator operators. Begin by verifying the battery's condition and connections. A weak battery or corroded terminals can prevent the starter from engaging properly. Next, check the fuel supply. Ensure there's sufficient fuel in the tank and that the fuel filter isn't clogged. If the engine cranks but doesn't start, consider issues with the fuel injection system. Air in the fuel lines can prevent proper combustion. Bleeding the fuel system, according to the procedures outlined later in this guide, may resolve the issue. If these steps fail, seek professional diagnosis for potential injector or pump problems.
Modern excavators like the John Deere 35G are equipped with sophisticated onboard diagnostics. These systems generate diagnostic codes that can pinpoint the source of many problems. The codes are displayed on the machine's monitor and provide critical information to technicians. However, interpreting these codes requires a service manual and diagnostic tools. Consult the service manual for a complete list of codes and their meanings. Without proper tools and expertise, attempting to repair a problem based solely on a diagnostic code can be risky and lead to further damage.
When a diagnostic code appears, note it down immediately. This code, along with a description of the symptoms, will be invaluable when consulting with a qualified technician. Keep in mind that some codes can trigger other codes, so addressing the initial problem first might clear other subsequent errors. Clear the diagnostic codes only after the problem is resolved. Clearing them prematurely can erase important information needed for diagnosis. Always follow proper safety protocols when investigating diagnostic codes, particularly those related to electrical or hydraulic systems.
The diagnostic system often provides additional information beyond the basic code. It may also indicate the frequency of the error, the operating conditions at the time of the error, and other relevant data. This detailed data helps a technician recreate the issue and understand the underlying cause. Always provide the technician with as much information as possible, including the operating conditions when the code appeared (e.g., under heavy load, at idle, during cold start), to aid in their diagnosis. Proper use of diagnostic codes and the information they provide can drastically reduce downtime and repair costs.
While complex repairs should be left to certified technicians, some basic repair procedures can be safely performed by the owner or operator. These include tasks such as replacing filters, changing fluids, and adjusting track tension. Always consult the service manual for detailed instructions and safety precautions before attempting any repair. Use the proper tools and equipment to avoid damage to the machine or injury to yourself. When replacing parts, always use genuine John Deere parts or equivalent quality replacements to ensure proper fit and performance.
Changing hydraulic fluid and filters is essential for maintaining the hydraulic system's performance and longevity. Consult the service manual for the recommended fluid type and filter replacement intervals. Before starting, make sure the machine is parked on a level surface and the engine is turned off. Relieve the hydraulic pressure by operating the controls briefly. Collect the old fluid in a suitable container for proper disposal. When installing new filters, lubricate the seals with clean hydraulic fluid to ensure a good seal. Refill the hydraulic reservoir to the correct level, following the instructions in the service manual.
Adjusting track tension is important for maintaining optimal traction and preventing excessive wear on the undercarriage. Too much tension can strain the track components, while too little tension can cause the track to derail. The service manual provides specific instructions on how to adjust track tension. Use a grease gun to add or remove grease from the track adjuster. Check the tension after each adjustment and adjust as needed until the track tension is within the specified range. Regularly inspecting and adjusting track tension can significantly extend the life of your undercarriage and improve the machine's performance.
Properly preparing your John Deere 35G compact excavator for storage is crucial for ensuring its longevity and optimal performance when you bring it back into service. A few simple steps taken before storage can save you time and money later on. Failing to properly prepare your machine can lead to corrosion, fuel degradation, battery discharge, and other issues that can significantly impact its reliability. This section outlines the essential procedures to follow before placing your excavator in storage, regardless of the duration.
The first step is a thorough cleaning. Use a pressure washer to remove all dirt, mud, and debris from the excavator's exterior, paying particular attention to the undercarriage, engine compartment, and hydraulic components. This not only improves the machine's appearance but also helps prevent corrosion by removing potentially corrosive materials. After cleaning, inspect the excavator for any signs of damage, such as leaks, cracks, or worn components. Address any issues promptly to prevent them from worsening during storage.
Next, lubricate all grease fittings according to the recommended service intervals outlined in the maintenance section of this manual. Fresh grease will help protect moving parts from rust and corrosion during storage. Also, change the engine oil and filter. Used oil contains contaminants that can corrode engine components over time. Replacing the oil with fresh, clean oil provides a protective barrier against corrosion. Consider using a storage-specific oil additive designed to protect internal engine parts during extended periods of inactivity; these are available at most auto and farm supply stores.
For extended storage periods (typically exceeding three months), additional precautions are necessary to prevent degradation of vital components. This section details the steps required to properly prepare your John Deere 35G for long-term storage, ensuring it remains in optimal condition for future use. These procedures are critical for minimizing the risk of damage and maximizing the excavator's lifespan.
The fuel system requires careful attention during long-term storage. Fuel can degrade over time, leading to varnish and sludge buildup that can clog fuel lines and injectors. To prevent this, add a fuel stabilizer to the fuel tank according to the manufacturer's instructions. Run the engine for a few minutes to allow the stabilizer to circulate throughout the fuel system. Alternatively, you can drain the fuel tank completely. If you choose to drain the tank, add a rust inhibitor to the inside of the tank to prevent rust from forming. Be sure to dispose of the old fuel properly, following all local regulations.
Battery care is also essential for long-term storage. Disconnect the battery cables to prevent parasitic drain, which can discharge the battery over time. Clean the battery terminals with a wire brush and apply a corrosion inhibitor to prevent corrosion. Store the battery in a cool, dry place away from direct sunlight. Ideally, use a battery maintainer to keep the battery charged during storage. This will help prolong its lifespan and ensure it's ready to go when you're ready to use the excavator again.
Finally, protect the excavator from the elements. If possible, store the excavator indoors in a dry, well-ventilated area. If indoor storage is not available, cover the excavator with a waterproof, breathable tarp to protect it from rain, snow, and sunlight. Ensure the tarp is securely fastened to prevent it from blowing away in windy conditions. Regularly inspect the tarp to ensure it remains intact and properly positioned. Perform a final visual inspection before leaving the machine in storage, making sure all covers are in place and no parts are left exposed.
Understanding the overall dimensions of your John Deere 35G Compact Excavator is crucial for efficient operation and safe transportation. This information allows you to plan routes, assess job site access, and determine appropriate trailer requirements. The overall length of the machine from the bucket teeth to the rear of the cab is approximately 16 feet (4.88 meters). The machine's overall width, with standard tracks, is roughly 5 feet 9 inches (1.75 meters), which allows for maneuverability in tight spaces. Knowing the overall height of the excavator, approximately 8 feet 4 inches (2.54 meters) to the top of the cab, is equally important to avoid overhead obstructions like power lines or low-hanging branches.
Further dimensional considerations include the maximum digging depth, which significantly impacts the type of work the excavator can perform. The standard digging depth for the 35G is approximately 10 feet 2 inches (3.1 meters). The dump height (distance from ground to the bucket hinge point at full height) should also be understood for loading trucks efficiently. The maximum dump height on the 35G is around 10 feet 8 inches (3.3 meters). Finally, the tail swing radius determines the clearance needed during operation. This is a zero-tail swing machine, meaning the counterweight stays within the width of the tracks, allowing operators to work against walls, fences or other structures with confidence.
The John Deere 35G Compact Excavator is powered by a reliable and fuel-efficient Yanmar 3TNV80FT diesel engine. This engine delivers the necessary power for digging, lifting, and maneuvering the machine. It's a three-cylinder, four-stroke engine designed for durability and ease of maintenance. The engine's gross power is approximately 23.2 horsepower (17.3 kW), providing ample power for most compact excavator applications. Proper maintenance of this engine is critical to maximize its lifespan and minimize downtime.
Essential engine specifications also include the displacement, which is approximately 1.267 liters (77.3 cubic inches). Understanding the engine's fuel consumption is vital for planning work and budgeting for fuel costs. The 35G typically consumes around 0.8 to 1.2 gallons per hour depending on the severity of the workload. Knowing the engine's oil capacity is crucial when performing oil changes. Consult the oil level dipstick frequently to ensure proper lubrication and prevent engine damage. Finally, be sure to use the recommended engine oil type and grade as specified in this manual.
The hydraulic system is the heart of the John Deere 35G Compact Excavator, providing the power for all digging, lifting, and swinging functions. The hydraulic system operates at a specific pressure range, typically around 3,550 PSI (245 bar), to deliver optimal performance. The main hydraulic pump delivers a flow rate of approximately 16.6 gallons per minute (63 liters per minute). This hydraulic flow provides the speed and power necessary for efficient operation. Understanding the hydraulic system's components and operating parameters is essential for troubleshooting and maintaining the machine.
Key components of the hydraulic system include the hydraulic pump, control valve, hydraulic cylinders (for boom, stick, and bucket), and hydraulic motor (for swing). The hydraulic oil reservoir holds a specific volume of hydraulic fluid, which acts as the lifeblood of the system. Ensure you use the recommended hydraulic oil type and change it at the intervals specified in the maintenance schedule. Maintaining proper hydraulic oil levels and cleanliness is vital to prevent damage to the hydraulic pump and other components. Also be aware of the boom, arm, and bucket cylinder sizes for repair purposes.
The operating weight of the John Deere 35G Compact Excavator is a critical specification to consider for transportation and stability. The operating weight includes the weight of the machine itself, plus the weight of the operator, a full tank of fuel, and standard attachments. The approximate operating weight of the 35G is around 7,716 pounds (3,500 kg). This weight distribution is carefully engineered to provide stability during digging and lifting operations. Exceeding the machine's lifting capacity could compromise stability and lead to accidents.
Furthermore, the operating weight influences the selection of appropriate trailers for transporting the excavator. Check the trailer's weight capacity and ensure it can safely handle the 35G. It is also important to consider the ground bearing pressure, as it is the weight of the machine divided by the surface area of the tracks. High ground bearing pressure can damage sensitive surfaces such as lawns or asphalt. Always check the manufacturer's recommendations for safe operation and transportation of the machine.