Ariens GRAVELY Pro-Turn 400 Series Dealer/Owner/Operator Manual page 39

Replacing the Hydro Pump Belt
1. Properly stop and park unit (See Starting
and Shut Off on page 22).
2. Remove the PTO belt from the mower
clutch sheave (See Replacing Mower
Belts on page 37).
CAUTION: Use care when
releasing idler spring tension.
Keep body parts well away from
idlers when performing this
operation.
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 20 – 33 lbf-ft (27 – 45 N•m).
8. Replace long mower belt on mower
clutch sheave. See Replacing Mower
Belts on page 37.
2
6
3
4
1. Hydro Belt
2. Spring
3. Idler
4. Engine Sheave
5. Right Hand Hydrostat
6. Left Hand Hydrostat
7. Clutch
8. Clutch Anchor
EN - 39
Clutch Anchor and
Mounting Hardware
1
Figure 35
5
7
8