MTD 450 Series - Manual (Page 15)

Belt Replacement
Your tiller has been engineered with a belt designed for long
life and optimal performance. It should never be replaced with
a non-OEM belt. Order all belts through an authorized service
dealer or by contacting Customer Support as instructed on page
2.
Refer to Fig. 7-1 for the following steps.
Disconnect and ground the spark plug wire against the
engine.
Remove the belt cover from the left side of the tiller by
removing the two torx head screws from the top of the belt
cover.
Remove the two hex cap nuts and flat washers from the
front side of the belt cover. Remove the hex nut and flat
washer at the back of the cover.
Remove the belt keeper assembly located behind the
engine pulley by removing the two hex bolts and lock
washers.
Remove the old belt and install the new belt. Follow the
instructions in reverse order to re-install the belt keeper
and belt cover.
NOTE: Upon reassembly, make certain the belt is routed over the
idler pulley and inside of belt keepers by the engine pulley. See
Fig. 7-1.
1.
2.
3.
4.
5.
Belt
Engine
Pulley
Belt
Keeper
Idler Pulley
Hex
Bolt
Figure -1
Service
7
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