UNDERCARRIAGE / Travel Device CAUTION: Drum (8), sprocket (14) and other parts weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 180 kg (400 lb) ZAXIS500LC-3, 520LCH-3: 855 kg (1885 lb) IMPORTANT: The mating parts of drum (8) and housing (5) are sliding surface. Place the drum (8) assembly on the wooden blocks in order not to damage the sliding surface. 14. Put the matching marks on the mating positions of drum (8) and housing (5). Install eyebolt (A) into the bolt (45) hole (2 places) on drum (8). Attach a nylon sling to eyebolt. Hoist and hold drum (8). Eyebolt (A) ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: M18, Pitch 2.5 mm ZAXIS500LC-3, 520LCH-3: M14, Pitch 2.0 mm 15.
Remove the drum (8) assembly from housing (5). At this time, the inner race of roller bearing (9) is also removed together. 16. Remove floating seals (6) from housing (5) and drum (8). IMPORTANT: Do not remove the inner race of roller bearing (7) from housing (5) unless necessary. In case the inner race of roller bearing (7) has been removed, replace with a new one. 17. Remove the inner race of roller bearing (7) from housing (5) by using a bar and hammer. CAUTION: Sprocket (14) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 85 kg (187 lb) ZAXIS500LC-3, 520LCH-3: 115 kg (254 lb) 18. Put the matching marks on the mating positions of sprocket (14) and drum (8).
Attach a nylon sling to sprocket (14). Hoist and hold sprocket (14). 19. Remove bolts (16) (24 used) and washers (15) (24 used) from sprocket (14). Remove sprocket (14) from drum (8). : 32 mm IMPORTANT: Do not remove the outer race of roller bearings (7, 9) from drum (8) unless necessary. If the bearing is pressed in insufficiently, the service life of bearing may be affected. In case the outer race has been removed, replace with a new one. 20. Remove the outer race of roller bearing (7) drum (8) by using a bar and hammer. NOTE: If the inner race of roller bearing (7) cannot be removed, cut the inner race by using a gas torch. At this time, do not damage housing (5). W3-2-15