GASKET KT-SCH 5700253 - Caterpillar

Illustration 5 g02789032
Pump compartment
(1) Pressure tap (delivery pressure for the auxiliary pump)
Attach a 34,450 kPa (5,000 psi) pressure sensor to pressure tap (1). Temporary Setting of the Main Relief Valve
A temporary setting of the main relief valve is required before any line relief valves can be adjusted.
Move the control input to the full position for extension and retraction of the control valve. Refer to Illustration 7 for the control inputs for tool rotation.
Check the main relief valve pressure setting at pressure tap (1).
Be sure that the main relief valve pressure is set at the pressure specification. Refer to Table 1. Note: Always make final pressure adjustments on pressure rise.
Illustration 6 g02789020
Main relief valve for the medium pressure control valve
(A) Medium pressure only control valve
(B) Medium pressure with Blade control valve
Loosen the locknut. Turn the adjustment screw clockwise ONE HALF TURN or until