FRAME GP-SLIDING 3205933 - Caterpillar

Do not turn the steering wheel when the engine is running and a low pressure gauge has been installed in the steering circuit. If the steering wheel is turned, the pressure of the oil to the steering cylinders will be too high for a low pressure gauge.
Specifications
Table 1
Steering Cylinder Crossover Relief Pressure
Date Equipment ID Code
Pressure Specification Actual
High Idle 17800 800 kPa (2582 116 psi) Introduction
This procedure will test the setting of the steering crossover relief valve.Required Tools
Illustration 1 g02601777
Table 2
Tool Item Part Number Description Qty
B 198-4240 Digital Pressure Indicator Gp
B1 198-4234 Digital Indicator 1
B2 251-9600 Pressure Sensor Gp (0 to 68,900 kPa (0 to 10,000 psi)) 2
B3 198-4236 Adapter Cable As 2 Machine Preparation
Move the machine to a smooth, horizontal location. Move the machine away from other operating machines and away from personnel. Place the transmission direction control switch in the NEUTRAL position. Engage the parking brake. Shut off the engine.
Slowly loosen the filler cap for the hydraulic oil tank to release the pressure.Test Procedure
Illustration 2 g03722009
View of right-hand side cushion-hitch frame
(1) Right-hand steering cylinder pressure tap
(2) Left-hand steering cylinder pressure tap
To test the right-hand steering cylinder, remove the dust cap from test port (1) for the right-hand steering cylinder. Connect Tooling (B) to test port (1). To test the left-hand steering cylinder, remove the dust cap from test port (2) for the left-hand steering cylinder. Connect tooling (B) to test port (2).
Start the engine and operate the engine at LOW IDLE. Raise the bowl and release the parking brake.
Slowly steer the machine toward the right steering stop.
Increase the engine speed to HIGH IDLE.
Continue steering to the right as fast as possible into the steering stop. The right-hand steering cylinder pressure should read 17800 800 kPa (2582 116 psi).
Repeat Step 1 through Step 5 to test the left-hand steering cylinder.
Remove all test equipment. Install the dust caps on test ports (1) and (2).Adjustment Procedure
Stop the machine and shut off the engine.
Illustration 3 g03397549
Transparent view of the portion of the belly pan that has the access port.
Remove the crank case guard. For information regarding the removal of the crankcase guards refer to the Disassembly and Assembly, "Crankcase Guard - Remove and Install - Tractor" for your machine.
Illustration 4 g03722105
View of steering control valve
(4) Steering control valve
(5) Adjustment screw
(6) Nut
Loosen nut (6) and adjustment screw (5) to change the steering crossover relief pressure. Turn the screw clockwise to increase the steering crossover relief pressure. Turn the screw counterclockwise to decrease the steering crossover relief pressure.
Illustration 5 g03397549
Transparent view of the portion of the belly pan that has the access port.
Reinstall the crank case guard. For information regarding the removal of the crankcase guards refer to the Disassembly and Assembly, "Crankcase Guard - Remove and Install - Tractor" for your machine.