Replacing the planetary gearbox oil
NOTICE
Risk of contamination and damage
►
Do not allow dirt to enter the housing. Thoroughly clean the area around the plugs before pro-
ceeding.
Figure 112: Planetary gearbox oil plugs
Pos. Name
1 Fill plug
2 Level plug
3 Drain plug (not visible on picture)
1. Park the vehicle on level ground and turn the key in the ignition switch to the off position.
2. Install a recipient to collect the used oil.
3. Clean the areas around the plugs before removing them.
4. Remove the fill plug first. Then, remove the level and drain plugs of the gearbox and wait until
all oil is drained.
5. Inspect the magnets of the plugs for excessive wear material. The presence of metal debris
could indicate a major failure.
6. When all the oil is drained, reinstall the drain plug. Torque M16 plugs to 65 N.m (48 lbf-ft). Tor-
que M18 plugs to 80 N.m (59 lbf-ft)
IMPORTANT
Make sure the sealing brass washer is replaced by a new one every time the plug is removed.
7. Using new oil, fill the housing until oil flows out of the level plug. Proper oil level is critical to the
service life of this component.
8. Check level again after the oil has settled.
9. Reinstall the remaining plugs.
IMPORTANT
Make sure the sealing brass washer is replaced by a new one every time the plug is removed.
10. Repeat for the other gearbox.
Operating and Maintenance Manual
Snow groomer BISON
188
(255)
11 - Maintenance
BISON 908930245 - 30367
11.16.2
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