hitachi — ASSEMBLE TRACK ADJUSTER

UNDERCARRIAGE / Track Adjuster Assemble Track Adjuster IMPORTANT: Apply grease to wear ring (5) and U-ring (6). Install U-ring (6) with the lip facing to rod (15). 1. After cleaning all parts, install the following parts below to piston rod (4). ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: Wear ring (5), retaining ring (7) and U-ring (6) ZAXIS500LC-3, 520LCH-3: Wear ring (5) (2 used), backup ring (17), U-ring (6), plate (18) and retaining ring (7) IMPORTANT: Fill chamber (B) in cylinder (8) with grease. Push piston rod (4) and completely release pressure in chamber (B) and rod (15). Apply hydraulic oil to the inner sur- face of cylinder (8) and piston rod (4). 3.

Install eyebolt (M16, Pitch 2.0 mm) to piston rod (4). Attach a nylon sling. Hoist and install piston rod (4) to cylinder (8). IMPORTANT: Fill chamber (A) in guide (3) with grease. Apply grease to O-ring (2) and apply LOCTITE #262 to socket bolts (1) (4 used). 4. Install O-ring (2) to guide (3). Install guide (3) to cylinder (8) with socket bolts (1) (4 used). : 12 mm : 140 N m (14 kgf m, 103 Ibf ft) W166-03-04-001 1 CAUTION: Rod (15) weight: 21 kg (50 lb) 2. Apply grease to O-ring (9). Install O-ring (9) to cylinder (8). Install eyebolt (M16, Pitch 2.0 mm) to rod (15). Attach a nylon sling. Hoist and install rod (15) to cylinder (8).

9 W142-03-04-018 15 9 W142-03-04-012 W3-4-11 4 5 6 7 3 4 2