hitachi — ASSEMBLE TRACK ADJUSTER

UNDERCARRIAGE / Track Adjuster IMPORTANT: Slowly compress spring (11) while aligning the center of rod (15) with that of bracket (12) by using a pry bar. Do not damage the threads on rod (15). 9. Operate the cylinder of special tool (ST 4932) and remove a wire. Compress spring (11) until speci- fied spring (11) length (A) is obtained. IMPORTANT: Align the matching marks made when disassembling. Check that the grease outlet in rod (15) is aligned with that in nut (13). 10. Install nut (13) to rod (15). Secure nut (13) to rod (15) with bolt (14). : 100 mm : 39 N m (4 kgf m, 29 Ibf ft) : 17 mm NOTE: Specified Spring Length (A) ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3:

782 mm (30.8 in) ZAXIS500LC-3, 520LCH-3: 733 mm (28.9 in) 13 15 11 ST 4932 12 W142-03-04-020 11. Install valve (16) to rod (15). Wire : 24 mm 12. Retract the cylinder of special tool (ST 4932). : 147 N m (15 kgf m, 108 Ibf ft) W142-03-04-015 CAUTION: Track adjuster weight: ZAXIS450-3, 470H-3: 235 kg (518 lb) ZAXIS450LC-3, 470LCH-3: 239 kg (527 lb) ZAXIS500lc-3, 520lch-3: 365 kg (805 lb) 13. Attach a nylon sling to the track adjuster. Hoist and remove the track adjuster from special tool. CAUTION: If only the spring assembly is transported, use a firm steel box and take any other precautions in order to carry the track adjuster safely. W3-4-15 14 16