Gravely Pro-Turn 152 CARB Owner's/Operator's Manual page 35

Blade Side-to-Side Level
Left
Blade Front-to-Back Pitch
Front
Rear
Figure 28
Adjust Blade Height
Level and pitch the mower with the height
adjusters on each deck lift bracket
(Figure 29).
1. Loosen the lock nut on the deck lift
trunnion and at the lift pivot point.
2. Turn the adjustment bolt clockwise to
raise the deck or counterclockwise to
lower the deck.
3. Tighten the lock nuts.
Height Adjuster
Figure 29
Right
Rear
Adjustment
Bolt
Jam Nuts
EN - 35
CLUTCH ADJUSTMENT
(Figure 30)
If clutch fails to engage or disengage properly
or begins to make abnormal noise, check the
air gap adjustment at the three inspection
slots.
To check:
1. Stop engine, remove key and wait for all
hot parts to cool.
2. Measure the air gap between the
armature and the rotor.
Minimum: A .016" feeler gauge should
slide between armature and rotor with
slight contact.
Maximum: A .020" feeler gauge should
slide between armature and rotor with
slight contact.
3. Repeat for each inspection slot.
To adjust:
1. If necessary, loosen gap adjustment
nuts until a .016" feeler gauge fits
between armature and rotor.
2. Slide a .020" feeler gauge between
armature and rotor.
3. Tighten gap adjustment nut until there is
slight contact on feeler gauge.
4. Repeat steps 1 – 3 at each inspection
slot.
NOTE: Adjust air gap as evenly as possible.
5. Start unit, engage and disengage PTO.
6. Shut off unit.
7. Recheck air gap and adjust if needed.
4
3
1. Armature
2. Rotor
3. Inspection Slot
4. Gap Adjustment Nut
Figure 30
4
1
2