UNDERCARRIAGE / Travel Device Assemble Travel Device 1. When replacing roller bearing (33), heat the inner races (2 used) of roller bearing (33) to temperature 50 to 70 ° C by using a heater and install the inner race to motor (31). Cool roller bearing (33) and install the inner race by using a bar completely. CAUTION: Sprocket (39) weight: 69 kg (152 lb). IMPORTANT: Align the chamfered side of sprocket (39) with the drum (40) side. 4. Wind a nylon sling onto sprocket (39) and hoist sprocket (39). Place sprocket (39) onto drum (40). Clean and apply LOCTITE #262 or THREEBOND #1386B to bolts (37) (22 used). Clean the bolt (37) hole on drum (40).
Install bolts (37) (22 used) and washers (38) (22 used). NOTE: Tap and listen to ring to in order to check if the installation is completed. 2. Apply grease to O-ring on floating seal (32). Install one side of floating seal (32) to motor (31). Apply gear oil onto the sliding surface of floating seal (32). : 750 N m (75 kgf m, 555 lbf ft) : 30 mm NOTE: When it is difficult to install O-ring of floating seal (32), push O-ring in the circumference by using a bamboo spatula. IMPORTANT: Tap the outer race only. CAUTION: Drum (40) + sprocket (39) weight: 146 kg (320 lb) 5. Install eyebolts (M16, Pitch 2.0 mm) (2 used) into the bolt (14) hole on drum (40).
Hoist and place drum (40) onto motor (31) vertically. At this time, check if the clearance between motor (31) and drum (40) is equal. 6. Install the inner race of roller bearing (30) between drum (40) and motor (31). 3. Tap the outer races (2 used) by using a bar and hammer evenly and install the outer races (2 used) of roller bearing (33). Install other side of floating seal (32) to drum (40). NOTE: Tap and listen to ring in order to check that the outer race of roller bearing (33) is installed completely. W3-2-11