Deck With A Timing Belt - MTD 700 Series Professional Shop Manual

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700 Series Lawn Tractor

Deck with a Timing Belt

Timing belt:
NOTE: When servicing a rider with a timed cutting
deck, it is important to check the timing of
the belt any time repairs or periodic mainte-
nance are performed to the mower. The
blades must be 90 degrees apart. If they are
not, they must be re-timed. Follow the direc-
tions in this section to re-time the belts.
1. Remove the deck as describe at the beginning of
this chapter.
2. Remove the PTO belt by following the steps
described in the previous section of this manual
3. Remove the PTO belt idler spring.
See Figure 8.17.
4. Remove the timing belt idler stop using a pair of 9/
16" wrenches. See Figure 8.18.
NOTE: The idler spring pulley applies the tension to
the timing belt. The timing belt idler stop will
prevent the idler pulley from springing away
from the timing belt during a blade impact.
This helps prevent the blades from jumping
time.
5. Remove the timing belt idler spring.
See Figure 8.19.
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Remove this spring
Figure 8.17
Timing belt idler stop
Figure 8.18
Timing belt idler spring
Figure 8.19