Regular Maintenance

PTO Drive Belt Replacement

 

4. Using a 1/2” breaker bar, place the square end in

NOTICE

 

 

the square hole located in the end of the idler arm

 

 

(A, Figure 44). Carefully rotate the breaker bar

To avoid damaging belts, DO NOT pry belts over

 

CLOCKWISE, which will relieve the tension on the

 

belt exerted from the idler arm.

 

pulleys.

 

 

 

 

 

5. Slide the PTO drive belt over the edge of the left

 

 

 

1. Park the unit on a smooth, level surface such as

 

spindle pulley (B). Carefully release the tension

 

on the breaker bar.

 

a concrete floor. Disengage the PTO, engage the

 

 

 

6. Remove the old belt and replace with a new one.

parking brake, turn off the engine, and remove the

ignition key.

 

 

Make sure the V-side of the belt runs in the pulley

2. Remove the mower deck guard.

 

 

grooves.

 

 

 

7. Install the PTO drive belt (A, Figure 45) on the

3. Position the mower deck in the TRANSPORT

 

 

PTO clutch pulley (B), the front idler pulley (C)

position.

 

 

 

 

and the idler arm pulley (D). Carefully rotate the

WARNING

 

 

 

 

breaker bar CLOCKWISE and install the belt on

Use extreme caution when rotating the idler

 

the left spindle pulley (E). Carefully release the

 

tension on the breaker bar.

 

arm with the breaker bar, due to the increased

 

 

 

8. Reinstall the mower deck guard.

 

tension in the spring as the idler arm is being

 

 

rotated. Injury may result if the breaker bar is

 

9. Run the mower under no-load condition for about

prematurely released while the spring is under

 

5 minutes to break-in the new belt.

 

tension.

Reproduction

 

36” Models

 

for

 

 

 

 

48” Models

 

 

C

Not

 

 

C

B

A

 

 

 

 

B

 

 

 

 

 

 

 

A

 

Figure 44. Removing the PTO Drive B lt

 

B. Left Spindle Pulley

 

A. Idler Arm

 

 

C. PTO Drive Belt

 

36” Models

 

 

48” Models

 

B

 

B

 

 

 

A

 

 

A

 

 

 

 

 

 

E

C

E

D

C

 

 

D

Figure 45. PTO Drive Belt Routing

C. Front Idler Pulley

A. PTO Drive Belt

D. Idler Arm Pulley

B. PTO Clutch Pulley

E. Left Spindle Pulley

36

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