TM10-3930-660-34 16-21.PISTON PUMP - REPAIR (Cont’d) h.  Check shaft torque to verify correct bearing preload.  If shaft torque is greater than 6 lb.  ft., adjust shaft bearing preload (see step 5 above). 10.INSTALL COMPENSATOR (1). a.  Install new O-ring (5) in compensator,  and new gasket (4) on compensator face surface. b.  Install compensator (1) on valve block (3) and install four screws (2). c.  Cross tighten screws to 60-70 lb. in. torque. 16-143/(16-144Blank)