UNDERCARRIAGE / Upper and Lower Roller 4. Remove bolts (6) (4 used) from upper roller (3). : 27 mm 3 W116-03-06-002 6 CAUTION: Upper roller (3) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 39 kg (86 lb) ZAXIS500LC-3, 520LCH-3: 46.5 kg (102.5 lb) 5. Attach a nylon sling to the roller part of upper roller (3). Hoist and remove upper roller (3) from track frame (5). W116-03-06-003 4 Installation CAUTION: Upper roller (3) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 39 kg (86 lb) ZAXIS500LC-3, 520LCH-3: 46.5 kg (102.5 lb) 1. Hoist and insert upper roller (3) between track frame (5) and track (4). Insert the wooden blocks between upper roller (3) and track frame (5) and hold upper roller (3).
Align the holes for bolt (6) and install upper roller (3) with bolts (6) (4 used). ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: W116-03-06-003 3 5 : 27 mm : 400 N m (41 kgf m, 295 lbf ft) ZAXIS500LC-3, 520LCH-3: : 30 mm 2. Remove the wooden blocks and oil jack. : 550 N m (41 kgf m, 406 lbf ft) W116-03-06-002 W3-6-2 3 5 6