John Deere ST1129 Snow Blower User Manual


 
MAINTENANCE
25
MTF-0410104L
HOW TO REPLACE THE BELTS
The drive belts are of special construction and must be
replaced with original factory replacement belts available
from your nearest authorized service center.
Some steps require the assistance of a second person.
How To Remove the Auger Drive Belt
If the auger drive belt is damaged, the snow thrower will not
discharge snow. Replace the damaged belt as follows.
1. Disconnect the spark plug wire.
2. Loosen the bolts on each side of the bottom panel (see
Figure 29).
3. Remove the bottom panel.
4. Remove screw from belt cover. Remove the belt cover
(see Figure 27).
5. Loosen the belt guide. Pull the belt guide away from the
auger drive pulley (see Figure 31).
6. Pull the idler pulley away from the auger drive belt and
slip the auger drive belt off of the idler pulley.
7. Remove the auger drive belt from the engine pulley. To
remove the auger drive belt, the engine pulley may
have to be partially rotated.
8. Remove the top four bolts that hold together the auger
housing and the motor box. Loosen the bottom two
bolts. The auger housing and the motor box can now
be split apart for removal of the belt (see Figure 30).
9. Remove the old auger drive belt from the auger drive
pulley . Replace the auger drive belt with an original
factory replacement belt available from an authorized
service center (see Figure 31).
10. Install the new auger drive belt onto the auger drive
pulley.
NOTE: To assemble the auger housing to the mo-
tor box, have someone hold the auger clutch lever
in the ENGAGED position. This will move the idler
arm and pulley enough to allow the auger drive
pulley to move back into position.
11. Assemble the auger housing to the motor box with the
four bolts that were removed in step 8. Tighten the bot-
tom two bolts.
12. Install the auger drive belt onto the
engine pulley.
13. Slip the auger drive belt under the idler pulley.
14. Adjust the auger drive belt. See “How To Adjust The Au-
ger Drive Belt” in the Maintenance section.
15. Adjust the belt guide. See “How To Adjust The Belt
Guide” in the Maintenance section.
16. Install the belt cover. Tighten screw (See Figure 27).
17. Check the adjustment of the cables. See “How To Check
And Adjust The Cables” in the Maintenance section.
18. Install the bottom panel (see Figure 29).
19. Tighten the bolts on each side of the bottom panel.
20. Connect the spark plug wire.
Figure 29
Bottom Panel
Bolt
Auger Housing
Bolt
Figure 30
Remove
Bolts
Auger
Housing
Motor Box
Loosen
Bolts