Gravely ZT 1334 Owner's/Operator's Manual page 25

Install (Figure 19)
NOTE: Do not install PTO belt on left mower
deck pulley in step 1.
1. Install PTO belt on engine drive pulley
and mower deck.
2. Pull idler arm towards outside of unit
until PTO belt can be routed around left
mower deck pulley.
3. Slowly release idler arm until idler pulley
rests firmly against PTO belt.
4. Connect the PTO actuator cable to the
deck idler arm.
5. Insert a shim of 0.10" (the thickness of
12-gauge steel) between the roller on
the idler arm and the deck sheave. With
the shim in place, pull the actuator cable
taut and then tighten the cable
adjustment nuts against the cable mount
bracket to hold the setting.
6. Remove the shim and check for a gap
between the roller and the deck sheave.
7. Install belt covers on mower deck.
NOTE: Ensure that belt is still positioned in
the groove of the sheave after belt covers are
installed.
REPLACING HYDROSTATIC BELT
Remove (Figure 20)
1. Remove PTO belt (see REPLACING
PTO BELT on page 24).
CAUTION: Use care when
releasing idler spring tension.
Keep body parts well away from
idler when performing this
operation.
2. Disconnect idler spring.
3. Remove hydrostatic belt from
hydrostatic transmission pulleys, pulley,
electric clutch, and idler.
Install (Figure 20)
1. Install hydrostatic belt on idler, electric
clutch, pulley, and hydrostatic
transmission pulleys.
2. Connect idler spring.
3. Install PTO belt (see REPLACING PTO
BELT on page 24).
1
2
3
1. Hydrostatic Belt
2. Hydrostatic
Transmission
Pulley
GB - 25
2
4
3. Idler
4. Idler Spring
Figure 20