John Deere 75G Operator's Manual

Routine maintenance for the John Deere 75G Excavator includes checking and changing engine oil, inspecting hydraulic fluid levels, cleaning the air filter, examining the undercarriage for wear, and greasing all pivot points. Regularly inspect hoses and belts for signs of wear or damage.
To troubleshoot hydraulic issues, first check the hydraulic fluid level and quality. Ensure all connections are tight and inspect hoses for leaks. Listen for unusual noises from the pump and cylinders. If problems persist, consult the operator’s manual or contact a service technician.
If the engine won't start, verify that the battery is charged and the terminals are clean and tight. Check the fuel level and inspect the fuel filter for clogs. Ensure the safety lock lever is in the correct position and check the starter motor and ignition switch.
To store the excavator, clean it thoroughly to remove dirt and debris. Drain the fuel and replace it with a stabilizer, check antifreeze levels, and disconnect the battery. Store in a dry, covered area and periodically start the engine to maintain its condition.
The recommended track tension for the John Deere 75G Excavator should allow for 1-2 inches of sag between the top of the track and the bottom of the track roller frame. Consult the operator’s manual for specific adjustment procedures.
To improve fuel efficiency, ensure regular maintenance is conducted, use the economy mode when appropriate, minimize idling, and operate at optimal engine speeds. Regularly check and clean air filters and maintain proper track tension.
If the boom is slow to respond, check hydraulic fluid levels and quality. Inspect the hydraulic pump and control valve for any malfunctions. Look for leaks or blockages in the hydraulic lines. If necessary, consult a professional technician.
The air filter should be inspected every 250 hours and replaced as needed, based on operating conditions. In dusty environments, more frequent checks and replacements may be necessary.
To check the hydraulic fluid level, ensure the machine is on level ground, lower all attachments, and turn off the engine. Use the sight gauge or dipstick to verify the fluid level is within the recommended range. Add fluid if necessary.
Inspect the undercarriage regularly for uneven track wear, sprocket and roller degradation, and loose or broken bolts. Look for excessive track sag and any signs of cracks or stress in the frame. Replace worn parts to prevent further damage.