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27sectiOn 7 — service 27sectiOn 7 — service
Changing the Deck Belt
WARNING! Be sure to shut the engine off, remove
ignition key, disconnect the spark plug wire(s) and
ground against the engine to prevent unintended
starting before removing the belt.
WARNING! All belts on your tractor are subject to
wear and should be replaced if any signs of wear are
present.
IMPORTANT: The V-belt found on your tractor is specially
designed to engage and disengage safely. A substitute (non-
OEM) V-belt can be dangerous by not disengaging completely.
For a proper working machine, use factory approved belts.
To change or replace the deck belt on your tractor, proceed as
follows:
Remove the belt keeper rod(s) from around the engine
pulley.
Remove the cutting deck as instructed earlier in this
section.
Remove the belt guards by removing the self-tapping
screws that fasten them to the deck.
Carefully loosen, but do not remove, the deck idler pulleys.
Remove the deck belt from around all pulleys, including
the deck idler pulleys and the electric PTO clutch (units
with electric PTO).
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Figure 7-6
Engine Pulley
Right Hand
Spindle Pulley
Left Hand
Spindle Pulley
Idler Pulleys
Belt Guard
Belt Guard
42-inch Deck
Route the new belt as shown in Fig. 7-6, 7-7 or 7-8
depending on your tractor’s deck, and retighten the deck
idler pulleys.
Reinstall the belt guards removed earlier and remount the
deck to the tractor.
Route the belt around the engine pulley and reinstall the
belt keeper rod(s).
WARNING: Avoid the possibility of a pinching
injury. Do not place your fingers on the idler spring
or between the belt and a pulley while removing the
belt.
Changing the Lower Deck Belt (46” Decks)
NOTE: Several components must be removed in order to change
the tractor’s lower deck belt. See an authorized MTD Service
Dealer to have your lower drive belt replaced or phone Customer
Support as instructed on page 2 for information on ordering a
Service Manual.
Changing the Transmission Drive Belts
NOTE: Several components must be removed and special tools
(i.e. air/impact wrench) in order to change the tractor’s drive belts.
See an authorized MTD Service Dealer to have your drive belts
replaced or phone Customer Support as instructed on page 2 for
information on ordering a Service Manual.
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