Troubleshooting, Adjustment & Service

Hydraulic Pump Drive Belt Replacment

 

 

 

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

 

FRONT

as a concrete floor. Disengage the PTO, engage

B

 

the parking brake, turn off the engine, and remove

 

 

the ignition key.

 

 

E

 

2. Remove the PTO drive belt (see MOWER BELT

A

 

REPLACEMENT for removal instructions).

 

F

D

3. Loosen the nut towards the front of the machine

7-3/4”

 

on the spring anchor hook (H, Figure 50) to

 

(19,7cm)

 

release the majority of the belt tension. Use

 

 

 

caution and remove the nut to completely release

 

 

the tension.

 

 

 

 

4. Remove the old belt and replace it with the new

C

C

one. Make sure the V-side of the belt runs in the

 

G

H

grooves of the crankshaft pulley and pump pulleys

 

 

(B & C).

 

 

Figure 50. Hydraulic Pump Drive Belt Replacement

5. Reinstall the anchor hook (H) into the anchor tab

A. Pump Drive Belt

 

and loosely fasten the nut. Adjust the spring until

B. Crankshaft Pulley

 

a measurement of 7-3/4” (19,7cm) is achieved

 

C. Pump Pulley

 

from the outside of the spring hooks. Tighten nut.

D. Idler Pulley (stationary)

 

 

for

 

 

Reproduction

6. Reinstall the PTO drive belt.

 

 

E. Idler Pulley

 

 

 

 

F. Idler Arm

 

 

 

 

G. Sp ing

 

 

 

 

H. Spring Anch r H

k

 

Not

 

 

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