UPPERSTRUCTURE / Pump Device Assemble Main Pump 1. Insert servo piston (42) into head cover (31). Install servo pin (30) into the servo piston (42) hole from the suction port in head cover (31). Apply LOCTITE #829 to the thread part of set screw (41). Tighten set screw (41). Secure servo pin (30) to servo piston (42). CAUTION: The inner race becomes too hot. Avoid being burned. 4. Heat the inner race of roller bearings (15, 16) to 50 to 80 ° C (122 to 176 ° F). Apply hydraulic oil to roller bearings (15, 16) inside. : 8 mm : 24.5 N m (2.5 kgf m, 18 lbf ft) 2. Install O-ring (36) to stopper S (35). Install O-rings (12) (2 used) to head cover (31).
Install stopper S (35) to head cover (31) with socket bolts (34) (4 used) and spring washers (33) (4 used). : 6 mm : 30 N m (3.1 kgf m, 22 lbf ft) 3. Install special tool (ST 7923) to the large chamber side of head cover (31). Set servo piston (42) so that servo pin (30) is at the center of the suction port. W173-02-04-015 W2-4-33 S S T 7923