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EN - 31
Replacing the Hydro Pump Belt
See Figure 25.
1. Properly stop and park unit (see
Starting
and Shut Off
on page 18).
2. Using 1/2" (1.3 cm) ratchet/breaker bar
with an extension, extend the spring to
relieve belt tension and remove the PTO
belt from the mower clutch sheave (see
Replacing Mower Belts on page 30).
3. Slowly release the tension on the hydro
pump belt idler until all the tension is
removed from the spring.
4. Remove the clutch anchor and mounting
hardware.
5. Remove clutch stop and mounting
hardware.
6. Remove old hydro pump belt.
7. Install new hydro pump belt by positioning
belt on sheaves.
8. Replace clutch stop. Tighten hardware to
13–17lbf-ft (18–23N•m).
9. Replace mower belt on mower clutch
sheave. See
Replacing Mower Belts on
page 30.
10. Verify that there are no twists in belts and
that they are routed correctly.
Figure 24
1. PTO Mower Belt
2. Spring
3. PTO Mower Belt Idler
4. Mower Clutch Sheave
5. Center Sheave
1
5
4
3
2
Measure
PTO idler
spring length
at outer ends
of spring.
CAUTION: Use care when
releasing idler spring tension. Keep
body parts well away from idlers
when performing this operation.
Figure 25
1. Hydro Belt
2. Spring
3. Idler
4. Engine Sheave
5. Right Hand Hydrostat
6. Left Hand Hydrostat
7. Clutch
8. Clutch Anchor
9. Clutch Stop
6
1
5
2
7
8
4
3
9