SPACER 3813233 - Caterpillar

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Main Control Valve (1) Pressure Tap.
Install the 8T-0852 Pressure Gauge from the 1U-5481 Pressure Gauge Group to pressure tap (1) on the main control valve.
To correctly set a line relief valve, the main relief valve setting must be higher than the setting for the line relief valve. Refer to Table 2 for the main relief valve setting. Refer to Table 3 for the settings for the line relief valves.
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Main Control Valve (Three Valve) (2) Rod end line relief valve for the tilt cylinder. (3) Head end line relief valve for the auxiliary cylinder. (4) Head end line relief valve for the tilt cylinder. (5) Rod end line relief valve for the auxiliary cylinder. (6) Main relief valve.
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Main Control Valve (Two Valve) (2) Rod end line relief valve for the tilt cylinder. (4) Head end line relief valve for the tilt cylinder. (6) Main relief valve.Main Control ValveNote: Position the work tool on the ground or position the lift arms on the lift arm supports, before you make adjustments to the main relief valve.
If the main relief valve setting is below the setting for the line relief valve, it will be necessary to temporarily increase the main relief valve setting. Reference: For information about adjusting the main relief valve, refer to the Service Manual module Testing and Adjusting, "Relief Valve (Main) - Test and Adjust".Testing Line Relief Valves (Tilt)
Start the engine and run the engine. Operate the control levers and move all the cylinders in order to increase the temperature of the hydraulic oil to normal operating temperature.
Enter the Implement Hydraulic Service Mode.Reference: For additional information about this mode, refer to the Service Manual module Troubleshooting, Testing