Troubleshooting, Adjustment & Service
BELT REMOVAL & REPLACEMENT
To avoid damaging belts, DO NOT
PRY BELTS OVER PULLEYS.
Mower Drive Belt
Removal & Replacement - 72” Mower Decks
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.See Figure 45. Remove the hairpin clip and clevis pin and remove the deck lift foot pedal. Lift the floor plate to gain access to the PTO drive belt.
3.Remove the mower deck guards.
4.Using a 3/4” combination wrench, rotate the spring- loaded idler pulley (A, Figure 46) clockwise to release the belt tension.
WARNING
Use extreme caution when rotating the idler pulley with the wrench, due to the increased tension in the spring as the idler pulley is being rotated. Injury may result if the wrench is prematurely released while the spring is under tension.
5.Slide the drive belt over the edge of the stationary idler pulley (C) and carefully release the tension on the wrench until the spring tension is completely released.
6.Remove the old belt and replace with a new one.
7.Install the drive belt on the gearbox pulley, the spin- dle pulleys and idler pulleys.
8.Rotate the
9.Lower the floor pan and reinstall the deck lift foot pedal, clevis pin and hairpin clip. Make sure the deck lift lock bar is located as shown in Figure 45.
10.Reinstall the mower deck guards and secure with the 5/16” hardware previously removed.
11.Run the mower under
A
B
Figure 45. Remove Lift Pedal
A.Clevis Pin
B.Deck Lift Lock Bar
A
C
B
Figure 46. Mower PTO Belt
A.
B.Idler Spring
C.Stationary Idler Pulley
DC B
A 
A
D
D
A
Figure 47. Mower PTO Belt Routing
A. | Spindle Pulley | C. | |
B. | PTO Drive Belt | D. | Stationary Idler Pulley |
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