UPPERSTRUCTURE / Pump Device Assemble Pilot Pump 1. Install oil seal (15) into flange (14) by using special tool. 2. Install retaining ring (16) to flange (14). 3. Install bushings (2, 4) in cover (7) side to housing (9) with the seal groove side facing downward. 12. Secure flange (14), housing (9) and cover (7) with bolts (6) (4 used) and washers (5) (4 used). : 17 mm : 39 to 44 N m (4 to 4.5 kgf m, 29 to 32 lbf ft) NOTE: Key (1) is installed between bushings (2, 4). 4. Install drive gear (13) and gear (3) to housing (9). 5. Install bushings (2, 4) in flange (14) side to housing (9) with the seal groove side facing upward. 6.
Install seal (12) and backup ring (11) to the seal groove on bushings. 7. Install O-ring (8) to flange (14). 8. Install flange (14) while aligning the position of knock pin (10) in housing (9). 9. Turn over housing (9) and the flange (14) assembly. Clamp the flange part in a vise. Do not fall off the bushings and gears when turning over. Install seal (12) and backup ring (11) to the seal groove on bushings. 10. Install O-ring (8) to cover (7). 11. Install cover (7) to housing (9). W2-4-51