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O p e r a t i o n a n d M a i n t e n a n c e
2. One valve at a time:
a. Unscrew the adjusting screw on the valve to decrease the hydraulic pressure until
you reach 3,800 psi.
b. Re-test the hydraulic pressure after each ¼ turn to ensure that the pressure reaches
3,800 psi.
c. Once the pressure reads 3,800 psi, turn the adjusting screw ¼ turn at a time and re-
test the pressure until it reaches 3,970 psi.
d. Add ½ turn. Tighten both locknuts. Repeat for the two other valves.
4.4.2
Adjusting the counterbalance valves (CBCG-LJN)
The wrecker has ten counterbalance valves, which are all adjusted with the same adjustment:
Completely screw and then unscrew 3 ¾ turns.
l
Two are used to control the pressure of the boom in/out cylinder. They are located inside
the boom.
l
Two are used to control the pressure of each outrigger’s up/down cylinder. They are
located above each outrigger up/down cylinder.
Do not turn the adjusting screw of the hydraulic valve while operating a hydraulic
control, as this may permanently damage the valve.
135
Sliding Rotator Wreckers – Operation and Maintenance
Models: CSR50 - CSR65 - CSR85
REV. 0
SEPTEMBER 19, 2022