UNDERCARRIAGE / Front Idler Disassemble Front Idler 1. Loosen bolts (10) (3 used), and spring washers (11) (3 used) from guard (9). Remove guard (9) from yoke (12). 6. Remove bearing (1) from the upper side of idler (7). Remove floating seals (5) (2 used) from both sides of idler (7) and bearing (1). : 19 mm CAUTION: Yoke (12) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 44 kg (97 lb) ZAXIS500LC-3, 520LCH-3: 70 kg (154 lb) 2. Attach a nylon sling to yoke (12) and hold yoke (12). Remove bolts (13) (4 used) and spring washers (14) (4 used). Hoist and remove yoke (12) from bearings (1) (2 used). 1 5 7 5 3 3. Remove plug (8) from bearing (1). Drain off oil. : 30 mm 4 4.
Remove pin (2) from bearing (1) by using a bar and hammer. : 6 mm 1 W105-03-05-009 CAUTION: The idler (7) assembly weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 232 kg (511 lb) ZAXIS500LC-3, 520LCH-3: 183 kg (403 lb) Axle (4) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 28 kg (62 lb) ZAXIS500LC-3, 520LCH-3: 31.4 kg (69 lb) Bearing (1) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 27 kg (60 lb) ZAXIS500LC-3, 520LCH-3: 18 kg (40 lb) 5. Put the matching marks on bearing (1) and axle (4). Remove the axle (4) assembly from idler (7) by using press. W105-03-05-008 W3-5-7 1 4 7