(5) Removal of cover assembly Place shaft of motor assembly to down- ward and take cover (12) out. (6) Remove shim (22) remove inner race of needle bearing (15) by bearing puller. Remove O-ring (29) from cover. (7) (8) (8) Remove balance plate Remove balance plate Valve plate (16) is adhered on end sur- face of cylinder (3) by oil viscosity. Take off balance plate (16) with hands. Assembling method of balance plate (16) depends on cover (12). (band groove and round groove of high · low pressure transmission area) Before removing, check and record loca- tion of balance plate (16) to prevent mis- assembling. 7-10