Regular Maintenance

Mower Belt Replacement

B

A

 

NOTICE

 

 

 

To avoid damaging belts, DO NOT PRY BELTS

 

 

OVER PULLEYS.

 

 

1. Park the tractor on a smooth, level surface such

 

B

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.

Figure 37. Mower PTO Belt

WARNINGA. Spring-loaded Idler

B. Stationary Idler Pulley

Use extreme caution when rotating the idler

 

 

 

 

 

 

arm with the breaker bar, due to the increased

 

 

D

B

C

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.

Reproduction

 

 

 

 

 

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

for

 

 

 

 

 

 

 

 

the square hole located in the end of the idler arm

 

 

 

 

(A, Figures 37). Carefully rotate the breaker bar

 

 

A

 

A

COUNTER-CLOCKWISE, which will relieve the

 

 

 

 

 

 

D

 

 

 

Not

 

 

A

 

tension on the belt exerted from the idler arm.

 

 

 

 

4. Slide the drive belt over the edge of the s a i

nary

 

 

 

 

idler pulley (B). Carefully release the tensi n

n

 

Fig re 38. Mower PTO Belt Routing

 

the breaker bar or the combination wrench.

 

 

 

 

 

A. Spindle Pulley

 

 

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

 

 

 

 

B. PTO Drive Belt

 

 

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

 

 

C. Spring-loaded Idler Pulley

 

 

grooves (Figure 38).

 

 

 

 

 

 

 

 

D. Stationary Idler Pulley

 

 

6. Install the drive belt on the PTO pulley, the s

indle

 

 

 

 

 

 

pulleys and all idler pulleys except the stationa y

 

 

 

 

 

pulley (B, Figure 37). Carefully rotate the br

aker

 

 

 

 

 

bar COUNTER-CLOCKWISE and install the

 

 

 

 

 

 

belt on the stationary idler pulley (B). Car fully 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.

37