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SWING MOTOR CROSSOVER RELIEF VALVE TEST AND ADJUSTMENT - Continued
PROPEL MOTOR CROSSOVER RELIEF VALVE TEST AND ADJUSTMENT

Maintenance Manual For Hydraulic Excavator Model 230Lcr
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TM 5-3805-280-24-1
Tests
Record the pressure reading.
Repeat procedure for the opposite direction. Record
the pressure reading.
Crossover Relief Valve--Specification
Pressure ................................................................. 32 360 + 1960 - 0 kPa
(323.6 + 19.6 - 0 bar)
(4695 + 285 - 0 psi)
Pressure ..................................................... 2940 kPa (29.4 bar) (430 psi)
approximate change per 1/4 turn
of adjusting plug
TX,9025,GG2650 1928APR974/5
7. Adjust the crossover relief valves (C or D) for left or
right swing as needed. Loosen nut (E). Turn adjusting
plug (F) in to increase pressure setting; turn adjusting
plug out to decrease pressure setting.
9025
25
79
C--Right Swing Crossover Relief Valve
D--Left Swing Crossover Relief Valve
E--Nut
F--Adjusting Plug
TX,9025,GG2650 1928APR975/5
6-210


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