MTD series 780 Operator's Manual page 25

4_
Carefully remove the deck belt from around the two
spindle pulleys and the two deck idler pulleys. See Figure
7-7.
5. To place the new belt, begin by routing the belt around the
two outer spindle pulleys as shown in Figure 7-7.
6. Then route the belt around the two deck idler pulleys as
shown in Figure 7-7.
7. Retighten the left idler pulley hex nut loosened earlier.
8. Remount the belt guards removed earlier.
9. Re-install the deck, making sure the belt remains routed
around the pulleys as instructed. See Figure 7-8.
f
10. Pull the right side of the belt, and place the narrowV side of
the belt into the PTO pulley.
11. While holding the belt and pulley together, rotate the
pulley to the left. Continue holding and rotating the pulley
and belt until the belt is fully rolled into the PTO pulley.
Changing the TransmissionDrive Belt
NOTE: Several components must be removed and special tools
(i.e. air/impact wrench) in order to change the tractor's drive
belt. See an authorized Troy-bilt Service Dealer to have your
drive belt replaced or phone Customer Support as instructed
on page 2 for information on ordering a Service Manual.
Figure 7-8
SECTION 7
-- SERVICE 25