31
Maintenance
Mower Belt Replacement
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.
3. Using a 1/2” breaker bar, place the square end in
the square hole located in the end of the idler arm
(A, Figures 41). Carefully rotate the breaker bar
CLOCKWISE, which will relieve the tension on the belt
exerted from the idler arm.
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 the V-side of the belt runs in the pulley grooves.
6. Install the drive belt on the PTO pulley, the spindle
pulleys and all idler pulleys except the stationary
pulley (B, Figure 41). Carefully rotate the breaker bar
CLOCKWISE and install the belt on the stationary idler
pulley (B). Carefully release the tension on the breaker
bar.
7. Reinstall the mower deck guards.
8. Run the mower under no-load condition for about 5
minutes to break-in the new belt.
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.
NOTICE
To avoid damaging belts, DO NOT PRY BELTS OVER
PULLEYS.
Figure 41. Mower PTO Belt
A. Idler Arm
B. Stationary Idler Pulley
C. Deck Drive Belt
D. Spindle Pulley
B
C
D
A
A
A
A
Figure 40. Measuring the Blade Height
CAUTION
Avoid injury! Mower blades are sharp.
Always wear gloves when handling blades or working
near blades.
7. See Figure 40. Position the outside mower blades so
they face front-to-back.
8. Measure the front tip of the blade from the cutting edge
to the ground. Measure the rear tip of the blade from
the cutting edge to the ground. The front measurement
should be 4” (10,2 cm), the rear measurement should be
4-1/4” (10,8 cm). Repeat this process for the other side
of the machine.
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