TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
STEP 2: Setting the Minimum Rotation Pressure
Set the counter-balance valves, C1 and C2 or CB1 and CB2 located in the rotation slip drive
hydraulic manifold, to 800 – 1,000 PSI. This is accomplished by installing a hydraulic pressure gauge
at the inlet of the derrick control valve. Meter into rotation and monitor the hydraulic gauge pressure
required for initial boom movement in each direction. One counter-balance valve adjusts clockwise
rotation while the other adjusts counter-clockwise.
Old Style Pre 1/1/2016
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