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37
Regular Maintenance
Figure 48. Mower PTO Belt Routing
A. Spindle Pulley
B. PTO Drive Belt
C. Spring-loaded Idler Pulley
D. Stationary Idler Pulley
Figure 47. Mower PTO Belt
A. Idler Arm
B. Stationary Idler Pulley
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 47). Carefully rotate the breaker bar COUNTER-
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 or the combination wrench.
5. Remove the old belt and replace with a new one. Make
sure the V-side of the belt runs in the pulley grooves
(Figure 48).
6. Install the drive belt on the PTO pulley, the spindle
pulleys and all idler pulleys except the stationary
pulley (B, Figure 47). Carefully rotate the breaker bar
COUNTER-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.
NOTICE
To avoid damaging belts, DO NOT PRY BELTS
OVER PULLEYS.
C
B
D
A
A
A
D
A
B
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.
A
B
61” Models
72” Models
C
D
A
A
A
B
D
61” Models
72” Models
D
Not for
Reproduction