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Maintenance
Regular Maintenance
Figure 41. Mower PTO Belt Routing
A. Spindle Pulley
B. PTO Drive Belt
C. Spring-loaded Idler Pulley
D. Stationary Idler Pulley
B
Figure 40. Mower PTO Belt
A. Idler Arm
B. Stationary Idler Pulley
Mower Belt Replacement - 48” Deck Models
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 40). 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
(Figure 41).
6. Install the drive belt on the PTO pulley, the spindle
pulleys and all idler pulleys except the stationary pulley
(B, Figure 40). 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.
C
D
A
A
A
D
NOTICE
To avoid damaging belts, DO NOT PRY BELTS OVER
PULLEYS.