39
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. Using a 1/2” breaker bar, place the square end in the
square hole located in the end of the idler arm (
A,
Figure 46
). Carefully rotate the breaker bar
counter-
clockwise
, which will relieve the tension on the belt
exerted from the idler arm.
3. Slide the drive belt over the edge of the stationary idler
pulley (
B
). Carefully release the tension on the breaker
bar until the idler arm stops against the center spindle
pulley.
4. Remove the old belt and replace with a new one. Make
sure the V-side of the belt runs in the pulley grooves
(
Figure 47
).
5. Install the drive belt on the PTO pulley, the spindle
pulleys and all idler pulleys except the stationary pulley
(
B, Figure 47
).
6. Carefully rotate the breaker bar
counter-clockwise
and
install the belt on the stationary idler pulley (
B
).
7. Carefully release the tension on the breaker bar.
8. Run the mower under no-load condition for about 5
minutes to break-in the new belt.
A
B
Figure 46. Mower PTO Belt
A. Idler Arm
B. Stationary Idler Pulley
C. 1/2” Breaker Bar
D. Spring
Figure 47. Mower PTO Belt Routing
A. Spindle Pulley
B. PTO Drive Belt
C. Spring-loaded Idler Pulley
D. Stationary Idler Pulley
C
B
D
A
A
A
D
D
C
D
Regular Maintenance
WARNING
Spring loaded components can kick back
causing injury.
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 in
the breaker bar is prematurely release while the spring is
under tension.
NOTICE
To avoid damaging belts, do NOT pry belts over pulleys.
Summary of Contents for 5101604
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