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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
138
Sliding Rotator Wreckers – Operation and Maintenance
Models: CSR50 - CSR65 - CSR85
REV. 0
SEPTEMBER 19, 2022
1. Loosen the jam nut.
FIGURE 55 — ADJUSTING THE SEQUENCE VALVE (SCCA-LAN)
2. Turn the set screw counter-clockwise until it stops.
3. Turn the set screw clockwise to the appropriate setting (described above) and keep the
screw in this position while you tighten the jam nut.
NOTE: Position the Allen key so you can easily count how many turns you make
when setting the screw.
4.4.4
Adjusting the rotation motor relief valves (RV3A)
The wrecker has two relief valves for the rotation lock: one for the clockwise rotation and
another for the counterclockwise rotation. These relief valves protect the swing drive by limiting
the pressure. They are located on the swing drive motor.