UNDERCARRIAGE / Front Idler Assemble Front Idler CAUTION: Idler (7) weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 150 kg (331 lb) ZAXIS500LC-3, 520LCH-3: 208 kg (459 lb) 1. Install bushing (6) to idler (7). CAUTION: The axle (4) assembly weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 54 kg (119 lb) ZAXIS500LC-3, 520LCH-3: 50 kg (110 lb) 5. Wind a nylon sling to bearing (1) of the axle (4) assembly. Hoist and insert the axle (4) assembly into idler (7) from the side where floating seal (5) has already been installed. 6. Apply LOCTITE #503 to plug (8). Install plug (8) to bearing (1). CAUTION: 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) 2. Wind a nylon sling to axle (4). Hoist and place axle (4) vertically. Install O-ring (3) (1 used) onto the upper side of axle (4). : 6 mm : 20 N m (2 kgf m, 15 Ibf ft) CAUTION: The idler (7) assembly weight: ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 183 kg (403 lb) ZAXIS500LC-3, 520LCH-3: 286 kg (631 lb) 7. Wind a nylon sling to the idler (7) assembly. Hoist and turn over the idler (7) assembly. Install O-ring (3) to axle (4). IMPORTANT: Align the matching marks made when disassembling. 3. Evenly tap and install bearing (1) into axle (4) by using a plastic hammer.
Insert pin (2) into bearing (1) by using a bar and hammer. 2 1 W105-03-05-014 4. Apply grease to O-ring (3) on the floating seal (5). Install a pair of floating seals (5) to idler (7) and bearing (1). W3-5-11 4 3