4. MAINTENANCE 4. 6 FINAL DRIVE MAINTENANCE 1. Oil Level Check The loader has two independent final drive housings. Check the lubricating oil level with the loader on a level surface. Remove the check plug (Fig. 4.6A) located on the front of the loader to determine the oil level. The oil level should be checked after 50 operating hours and every 150 hours thereafter. It is recommended the oil be changed after 1000 operating hours or if it shows signs of contamination. Scrapers 2. Adding Oil Add oil with the loader on level ground. Remove the oil level check plug (Fig. 4.6A) on the final drive housing. Remove the seat and hydrostatic shield. Remove the filler cap (Fig. 4.6B).
Fill with 10W30 API Classification SJ to the level of the check plug. Fig. 4.5A C4443 3. Drive Chain, Axle and Sprocket Inspection The condition of the drive chains should be checked after the first 50 hours for wheel loaders and after the first 300 hours for track loaders of operation and every 150 hours thereafter. Oil Level Check Plug To inspect, block the loader securely with all four wheels off the ground. Remove both the front and rear wheels. On reassembly torque the wheel nuts to 100-110 ft. lbs. (136- 149 N m). For wheel loaders remove the inspection cover on the side of the chain drive housing. For track loaders remove the track and tandem assembly. Fig.
4.6A C4271 Oil Drain Inspect the chain for any sign of wear, damage or excessive looseness. Inspect the sprockets for any sign of damage or excessive wear. Inspect the lubricating oil for signs of contamination. Check the axle bearings for loss of bearing preload. If necessary adjust the bearings for zero end play. Check the axle seals for leaking oil or damage. Replace seals at first sign of problem. Filler Cap Fig. 4.6B C3780 46