(12) Assemble inner race of needle bearing (15) and shim (22) to cover (12). (13) Assemble O-ring (29) to cover (12). Lubricate O-ring with grease. (14) Apply three bond of white color to distin- guish oil leakage from remaining oil in bolt hole of cover (12). (15) (15) Cover Cover Assemble cover (12) and valve plate (16) to housing (1) lightly, holding them up with hands. When assembling, be careful not to detach valve plate (16) from cover (12). Fit matching marks on housing (1) and cover (12) made before disassembling. 7-19