TM 10-3930-669-20 VERIFY REPAIR (1) Start engine (TM 10-3930-669-10). (2) Operate mast lift cylinders with load using tilt/ lift joystick. (a) If lift cylinders do not hold l load. fault not corrected.  Perform Step (3) below.  Repeat procedure and notify Supervisor. (b) If lift cylinders hold load, fault corrected. (3) Shut down engine. 2-481