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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
2. Clean the area around the gearbox cover plate to
prevent contaminants from entering the gearcase.
3. Remove the screws securing the cover plate on the
gearbox.
4. Check the level of lubricant in the gearbox. If the
lubricant is low, add SAE E.P. (Extreme Pressure)
80W-90 oil until the oil level is up to (submerges)
the horizontal shaft in the gearbox (shaft parallel to
cover plate).
NOTE: In case the gearbox is completely drained
of oil, approximately 5 fl. oz. (15 cl) of oil is required
to refill the gearbox.
IMPORTANT: DO NOT overfill the gearbox. The
gearbox assembly is not vented, and overfilling with
oil will cause excessive pressure and result in oil
leaks.
5. Check the condition of the cover gasket and re-
place if worn or damaged. Reinstall gearbox cover
plate; torque screws to 24 in-lb (2.7 N·m).
6. Reinstall the gearbox cover by reversing the re-
moval procedures.
Drive Chain Lubrication
Lubricate the drive chain every 25 hours. A light pen-
etrating oil or special purpose chain oil is recommend-
ed. Lubricate the drive chain as follows:
1. Remove the screw fastening the removable chain
guard cover to the snowblower housing and re-
move the cover.
Remove Chain Guard Cover
2. Apply oil to the drive chain.
3. Adjust the chain if necessary. Refer to ADJUST-
MENTS of Drive Chain Tension in the Service
Procedures Section.
4. Reinstall chain guard cover by reversing the re-
moval procedures.
Chain
Chain Tension Block
Mounting Bolt
Chain Guard
Cover
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