Regular Maintenance

Adjusting the PTO Drive Belt Idler Tensioner

Spring Length

1.Loosen the jam nut (B) on the eyebolt (C).

2.Turn the adjustment nut (D) until a measurement of 7-1/4” (18.42 cm) is achieved.

3.Tighten the jam nut.

Mower Deck Drive Belt Replacement

NOTICE

 

 

 

 

 

 

 

To avoid damaging belts, DO NOT pry belts over

 

 

 

 

A

pulleys.

 

 

 

 

 

 

 

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

 

 

 

 

B

 

 

 

 

 

a concrete floor. Disengage the PTO, engage the

 

 

 

 

parking brake, turn off the engine, and remove the

 

 

 

 

ignition key.

 

 

 

 

 

 

 

2. Remove the mower deck guard.

 

 

 

Figure 45. Mower Deck Belt Removal

 

3. Remove the PTO drive belt (see PTO DRIVE

 

 

 

A. Idler Arm

 

 

BELT REPLACEMENT for removal instructions).

 

 

 

 

B. Left Spindle Pulley

 

 

4. Lower the mower deck to its lowest cutting

 

 

 

for

 

 

 

position.

 

 

 

 

 

WARNING

 

 

 

B

 

 

 

A

 

 

Use extreme caution when rotating the idler

 

E

arm with the breaker bar, due to the increased

 

 

 

 

 

tension in the spring as the idler arm is being

 

 

 

 

 

C

 

rotated. Injury may result if the breaker bar is

 

 

 

 

 

 

 

 

prematurely released while the spring is under

 

 

 

 

 

tension.

 

 

 

 

 

 

 

5. Using a 1/2” breaker bar, place theNotsquare end in

 

D

 

 

 

the square hole located in the end of the idler a m

 

B

 

 

(A, Figure 45). Carefully rotate the br

ak r bar

 

 

 

 

 

 

D

 

 

COUNTER-CLOCKWISE, which will r li ve the

 

 

 

 

tension on the belt exerted from the idl

r arm.

 

 

 

 

 

6. Slide the mower deck drive belt over the edge of

 

 

 

 

 

the left spindle pulley (B). Carefully release the

 

Figure 46. Mower Deck Belt Routing

 

tension on the breaker bar.

 

 

 

A. Mower Deck Drive Belt

 

 

 

ReproductionB. Stationary Idler Pulley

 

 

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

 

 

 

 

 

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

C. Spring-loaded Idler Pulley

D. Spindle Pulleys

pulley grooves.

E. Left Spindle Pulley

8. See Figure 46. Install the mower deck drive belt

 

(A, Figure 46) on the stationary idler pulleys (B),

 

the spring-loaded idler pulley (C) and all of the

 

spindle pulleys (D) except for the left spindle pulley

 

(E). Carefully rotate the breaker bar COUNTER-

 

CLOCKWISE and install the belt on the left spindle

 

pulley. Carefully release the tension on the

 

breaker bar.

 

9. Reinstall the PTO drive belt (see PTO DRIVE

 

BELT REPLACEMENT for re-installation

 

instructions).

 

10. Reinstall the mower deck guards.

37