PIN AS 4418280 - Caterpillar

DO NOT ATTEMPT TO DISCONNECT LINES OR REMOVE PLUGS IN THE CUSHION HITCH CIRCUIT UNTIL THE ENGINE HAS BEEN SHUT OFF AT LEAST FIVE MINUTES. The five minute wait permits oil pressure in the accumulators to be relieved. The hissing sound can be heard at the selector lever while the system is being bled. If the engine is shut off when the machine is in cushion ride, the hitch will lower as the circuit is bled. DO NOT PLACE HANDS OR FEET AROUND HITCH COMPONENTS UNTIL THE HITCH IS COMPLETELY LOWERED. Failure to heed this warning can result in the sudden release of high pressure oil.
1. Drain hydraulic tank-capacity 25 U.S. Gal. (95 liters). 2. Remove selector valve guard (1).3. Identify and disconnect three hydraulic lines (2).4. Remove mounting bolts and remove valve.Install Cushion Hitch Selector Valve
1. Mount valve on machine.2. Connect three hydraulic lines.3. Install selector valve guard.4. Fill hydraulic tank to specified level.