Gravely Pro-Stance 48 Owner's/Operator's Manual page 31

5
4
1
3
1. PTO Mower Belt
2. Spring
3. PTO Mower Belt Idler
4. Mower Clutch Sheave
5. Center Sheave
Figure 24
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
4. Remove the clutch anchor and mounting
5. Remove clutch stop and mounting
6. Remove old hydro pump belt.
7. Install new hydro pump belt by positioning
8. Replace clutch stop. Tighten hardware to
9. Replace mower belt on mower clutch
2
10. Verify that there are no twists in belts and
Measure
PTO idler
spring length
at outer ends
of spring.
EN - 31
CAUTION: Use care when
releasing idler spring tension. Keep
body parts well away from idlers
when performing this operation.
pump belt idler until all the tension is
removed from the spring.
hardware.
hardware.
belt on sheaves.
13 – 17 lbf-ft (18 – 23 N•m).
sheave. See Replacing Mower Belts on
page 30.
that they are routed correctly.
7
4
6
3
2
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
Figure 25
9
8
5
1