Use and Care Manual

T-Boss550 OWNER’S/OPERATOR’S MANUAL 18.0
16. MAINTENANCE
16- 18
Rear Gearcase Lubrication
CAUTION
Be sure no foreign material enters the gear case.
With the ATV on a level surface, remove fill plug and visually inspect the
lubricant level through the fill hole. Lubricant should be kept even with
the center of the drill point approximately below the top of the fill hole.
NOTE: Do not add lubricant to the bottom of the fill plug threads. The
correct gearcase lubricant to use is SAE GL-4 85W/90 Weight Gear
Lube.
Oil Changing Procedure
1. Remove the drain plug. Catch and discard used oil properly.
2. Clean and reinstall the drain plug with a new sealing washer and
tighten securely (11~15ft. lbs/15~20N.m).
3. Remove the fill plug and add 10 ounces (300ml) of SAE GL-4
85W/90 Weight Gear Lubricant and inspect oil level. Oil level should
be kept even with the center of the drill point (approximately below
the top of the fill hole).
4. Reinstall the fill plug. Tight securely (26~30 ft. lbs/35~40N.m).
5. Check for leaks.