GENERAL MAINTENANCE INFORMATION.
Hydraulic System Maintenance.
Clean all hydraulic connections and mating parts with cleaning compound and rags when taking them
off. If available, use compressed air to clean fittings.
Before taking off any hydraulic hoses, tubes, electrical wires, harnesses or cables, tag them to show
location. Tagging saves time and avoids errors. Remove tags after parts are installed.
Keep a suitable container under tubes, hoses and fittings even after fluid has been drained.
Wipe up spilled fluids immediately with rags. Hydraulic fluid is slippery.
Put a rag under all connections to catch spilled fluids before you disconnect them.
Unscrew connections with two wrenches. Use one wrench to unscrew the connection and the other
wrench to hold the fitting or line to keep it from twisting. Make sure any old sealing compound or tape is removed.
Cap or plug all open hydraulic tubes, lines or fittings when you disconnect them. This will keep dirt and
dust out of the hydraulic system and will also stop fluid from siphoning through hoses and tubes. Do not take off caps or
plugs until you are ready to connect the system.
Cover large openings or ports with cardboard, sheets of plastic or masking tape.
Dry cleaning solvent P-D-680, used to clean parts is toxic and flammable.
Wear protective goggles and gloves and use only in a well-ventilated
area. Avoid contact with skin, eyes, and clothes. Do not breathe the
vapors. Do not use near open flame or excessive heat. Do not smoke
while using it. Failure to do so may cause INJURY. If you become dizzy
while using cleaning solvent, immediately seek fresh air, and if
necessary, medical attention. If contact with skin or clothes is made,
flush thoroughly with water. If the solvent contacts your eyes, wash with
water immediately and obtain medical help.
Clean up all spills and leaks with rags. When gasket is taken off, clean area with dry cleaning solvent P-
D-680 and rags.
Look at tube and hose nuts and fittings for bad threads. Replace bad nuts and fittings.