EN - 39
8. Replace belt covers and return foot board
to closed position.
Replacing the Hydro Pump Belt
1. Properly stop and park unit (See
2. Remove the PTO belt from the mower
clutch sheave (See
3. Slowly release the tension on the hydro
pump belt idler until all the tension is
removed from the springs.
4. Remove the clutch anchor and mounting
hardware.
5. Remove old hydro pump belt from right
hand hydrostat sheave first (Figure 35).
6. Install new hydro pump belt by positioning
belt on sheaves. Put belt onto right hand
hydrostat sheave last.
7. Replace clutch stop. Tighten hardware to
27 – 45 N•m (20 – 33 lb-ft).
8. Replace long mower belt on mower
clutch sheave. See
Figure 33
1. PTO Mower Belt
2. Mower Drive Belt
3. Springs
4. Mower Drive Belt Idler
5. PTO Mower Belt Idler
6. Mower Clutch Sheave
7. Center Sheave
8. Belt Guide Bolt
Figure 34
The PTO idler spring length range is
31 – 31.8 cm (12 1/4 – 12-1/2”) measured
at a 8.9 cm (3 1/2”) cutting height. Adjust
as necessary.
Measure PTO idler
spring length at outer
ends of spring.
PTO Idler Spring Length
CAUTION:
Use care when
releasing idler spring tension.
Keep body parts well away from
idlers when performing this
operation.