TOUGH-WORKS MM491G, Instruction Manual

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12
BD4603
MAINTEN
ANCE
MM491G
1. Apply a light coat of wax paste to the worktable
to make feeding stock easier.
2. Use a vacuum cleaner and brush to clear out
dust and debris from sander and motor.
Timing Drive Belt Replacement
1. Using a Phillips screwdriver, remove the screw
(66) from belt cover (67), and remove cover.
2. Loosen three screws to allow drive pulleys
(71 and 78) to move enough to place drive belt
(70) around them .
3. Place drive belt around drive pulley (71), then
drive pulley (78).
4. Tighten the three screws slightly.
5. Adjust tension of drive belt by placing a standard
screwdriver in the adjusting hole by pushing up
on the screwdriver to apply tension to the drive
belt.
6. Tighten the three screws again.
7. Squeeze the drive belt between two fingers
in the centre of the belt. If the belt has been
correctly tensioned there should be about
6mm (1/4”) of “give”.
NOTE:
Too much tension on the drive belt
can load-down motor and possibly cause dam
age. If the drive belt is too loose, it may fail
prematurely.
8. Replace belt cover (67) .