BODY (UPPERSTRUCTURE) / Pump Device Installation 1. Attach a nylon sling onto plug (19) (with eyebolt attached). Hoist and align main pump (6) with the mounting hole on the engine. Install main pump (6) to the engine with socket bolts (21) (4 used). Remove plug (19) from the regulator. Install reducer (20). Install pilot pump (14) to main pump (6) with socket bolts (18) (2 used). 19 20 14 18 : 8 mm : 50 N m (5 kgf m, 36 lbf·ft) 6 : 10 mm : 90 N m (9 kgf m, 65 lbf·ft) : 81 N m (8 kgf m, 59.5 lbf·ft) 2. Connect the connector of pump delivery pressure switch (17) under the priority valve (10). 3. Connect hoses (15, 16) to pilot pump (14). : 41 mm 21 W4GB-02-04-017 10 17 W4GB-02-04-016 : 27 mm :
78 N m (8 kgf m, 58 lbf·ft) 14 : 175 N m (18 kgf m, 129 lbf·ft) : 36 mm 15 16 W4GB-02-04-018 W2-6-4