VALVE GP- 4873030 - Caterpillar

Crushing Hazard. Connect the steering frame lock between front and rear frames before servicing the machine in the articulation area. Disconnect the steering frame lock and secure it in the stored position before resuming operation. Failure to do so could result in serious injury or death.
Refer to Operation and Maintenance Manual, "Steering Frame Lock"
before entering the articulation joint.Note: Do not disconnect any hydraulic lines from the metering pump.Use the following steps to lubricate the splines on the steering column:
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Open the access door on the front of the cab. Refer to Operation and Maintenance Manual, "Access Doors and Covers"
for information about the access door.
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Support the metering pump (1). Loosen the four bolts (3) that hold the pump. Do not loosen the hose couplings (2).
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Lower the pump in order to expose the splines (4).
Clean the male splines on the steering column. Clean the female splines in the pump.
Apply proper grease to the splines. Refer to Operation and Maintenance Manual, "Lubricant Viscosities"
for selecting the proper grease.
Push the pump into position.
Tighten the four bolts that hold the pump.
Test the steering system.