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Mower Belt Replacement
NOTICE
To avoid damaging belts, do not pry over pulleys.
1. Park the tractor on a smooth level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, turn
off the engine and remove the ignition key.
2. Lower the mower deck to its lowest cutting position and
remove the mower deck guards.
WARNING
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring as the
idler arm is being rotated. Injury may result if the breaker bar
is prematurely released while the spring is under tension.
3. Using a 1/2" breaker bar, place the square end in the square
hole located in the end of the idler arm (A, Figure 48).
Carefully rotate the breaker bar clockwise, which will relieve
the tension on the belt exerted from the idler arm.
48
4. Slide the drive belt over the edge of the stationary idler pulley
(B). Carefully release the tension on the breaker bar.
5. Remove the old belt and replace with a new one. Make sure
that the V-side of the belt runs in the pulley grooves.
6. Install the drive belt (A, Figure 49) on the PTO pulley, the
spindle pulleys (B) and all idler pulleys (C) except the rear
stationary pulley (D). Carefully rotate the breaker bar
clockwise and install the belt on the rear stationary idler
pulley.
49
7. Carefully release the tension on the breaker bar.
8. Reinstall the mower deck guards.
9. Run the mower under no-load condition for about 5 minutes
to break-in the new belt.
Check the Mower Belt Idler Tensioner Spring
Length
1. Set the mower deck to its middle cutting height position.
2. Use the Mower Belt Idler Tensioner Spring Length chart to
determine the correct spring length for your unit.
Mower Belt Idler Tensioner Spring Length
MeasurementDeck Size
6-3/4" (17.1 cm)48"
7" (17.8 cm)52"
3. Measure the coil length (A,Figure 50) of the mower belt idler
tensioner spring (B). The measurement should equal the
measurement as designated in the chart. If the measurement
does not equal the measurement as designated in thechart,
perform the Adjust the Mower Belt Idler Tensioner Spring
Length procedure.
50
Adjust the Mower Belt Idler Tensioner Spring
Length
1. Loosen the jam nut (C).
2. Turn the adjustment nut (D) until the measurement as
designated in the chart is achieved.
3. Re-tighten the jam nut.
Hydraulic Pump Drive Belt Replacement
The arrow (J, Figure 51) indicates the front of the mower.
31
Not for
Reproduction