UNDERCARRIAGE / Upper and Lower Roller REMOVE AND INSTALL LOWER ROLLER Removal CAUTION: Track guard weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 40 kg (88 lb) ZAXIS500LC-3, 520LCH-3: 56 kg (123 lb) 1. Remove the track guard. ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: : 32 mm ZAXIS500LC-3, 520LCH-3: W105-03-06-008 : 36 mm 2. Remove bolts (1) (4 used) from the lower roller. ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: : 32 mm ZAXIS500LC-3, 520LCH-3: 90 ° to 110 ° : 36 mm W800-03-07-003 2 3. Raise the machine by using the front attachment and insert the wooden blocks under track frame (2). CAUTION: Grease pressure in the adjuster cylinder is high.
Do not loosen valve (3) quickly or too much as valve (3) may fly off or high-pressure grease in the adjuster cyl- inder may gush out. Keep body parts and face away from valve (3) and loosen valve carefully. Do not loosen grease fitting (4). IMPORTANT: It is enough to loosen valve (3) by 1 to 1.5 turns. Do not loosen valve (3) over that degree. 4. Loosen valve (3) on the track adjuster. Drain enough grease and permit the lower roller to be removed. W105-03-06-001 3 4 Grease Outlet W800-03-07-002 : 24 mm W3-6-4 1