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 TM
5-2420-224-34
BACKHOE CONTROL VALVE, DIPPER AND BUCKET SECTION VALVES
R E P A I R (CONT)
Safety Relief Valve
1.
Loosen lock nut (1).
2.
Turn adjusting screw (2) in to increase pressure, or out to decrease pressure.
Repeat testing and adjustment until correct pressure is obtained.
3.
4.
If correct pressure cannot be obtained, replace safety relief valve.
When safety relief valve pressure is correct, perform leak test.
5.
20-78
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