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DeckBelts(46" Deck)
• Remove the cutting deck from the tractor (Refer to
CuttingDeckRemovalon page 22, for detailed
instructions)
NOTE: To change the upper belt on 46-inch decks,
you must also remove both the deck stabilizer bracket
and the stabilizer rod. To do so, remove the hairpin clip
which secures the stabilizer rod to the stabilizer
bracket. See Figure 32.
• After the deck is removed (and the stabilizer
bracket and rod), the upper deck belt can be simply
lifted off of the double-pulley located in the rear,
center of the cutting deck.
To remove the lower deck belt:
• Remove the upper deck belt (see steps above).
• Remove the belt guards (located over each outer
spindle pulley) by removing the self-tapping screws
which secure them in place. Refer Figure 30.
• Using a spring puller (MTD Part No. 732-0571 )or
other suitable tool, disconnect the extension spring
from the rear of the cutting deck belt. This will
relieve tension on the lower deck belt.
• Remove the lower deck belt from around the idler
pulleys, and the three spindle pulleys.
• Reassemble new belts, following instructions in
reverse order.
DriveBelt
NOTE: The engine pulley must be removed from the
engine's crankshaft in order to change the tractor's
drive belt. Doing so requires an air/impact wrench.
• Unthread the parking knob and remove the two
flange screws which secure the cover panel in
place. Refer to Figure 16.
• Remove the cover panel and locate the idler pulley
and extension spring. See Figure 33.
• Remove the extension spring from the idler bracket
to relieve tension on the drive belt.
• Locate the two belt keeper pins, found on either
side of the engine pulley, and use a 1/4-inch socket
wrench to remove them from the lower frame. Refer
to Figure 25.
NOTE: When reassembfing, make certain belt keeper
pins are assembled in the same locations from which
they were removed.
• Using an impact gun with a 5/8-inch socket, remove
the hex screw with secures the engine pulley to the
engine crankshaft.
• Carefully lower the pulley off of the crankshaft and
remove the drive belt from around its top portion.
• Carefully feed the belt toward the rear of the tractor.
• Working within the cover panel opening, gently lift
the drive belt off of the transmission pulley and over
the cooling fan.
Stabilizer Rod_
Hairpin Clip
0
Extension Spring
Figure 32
Pulley
NOTE: SteeringWheel notshown for clarity.
Figure 33
IMPORTANT: The fins on the cooling fan are only
slightly flexible. Be careful not to damage the fan when
removing the drive belt from around the transmission
pulley.
Remove the drive belt by lifting it through the cover
panel opening.
Reassemble new belt, following the 3revious
instructions in reverse order.
IMPORTANT:When remounting the engine pulley,
torque the hex bolt to between 38 foot-pounds and 50
foot-pounds.
HydrostaticTransmission
The hydrostatic transmission is sealed at the factory
and is maintenance free. The fluid level cannot be
checked nor can the oil be changed. Always keep the
area around the cooling fan free of grass and debris.
25
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