Gravely Promaster 992066, 992067, 992068, 992069, 992070, 992071, 992072 Owner's/Operator's Manual page 24

Lowest
Cutting
Height
Highest
Cutting
Height
Figure 18
Removing the Mower Deck
1. Remove PTO (long) mower belt. See Replacing
Mower Belts on page 22.
2. Remove link chains from mower lift arms. Note hole
location on mower lift arms for replacement.
3. Remove mower mounting arms from frame.
4. Slide mower deck out from under unit.
4
2
1. Mower Lift Arm
2. Link Chain
Figure 19
Installing the Mower Deck
1. Slide mower deck under unit.
2. Install mower mounting arms on frame.
3. Install link chains on the mower lift arms in the
same holes they were removed from.
4. Install PTO (long) mower belt. See Replacing
Mower Belts on page 22.
5. Level mower deck.
Leveling the Mower Deck
These adjustments should be made on a level surface
with the tires inflated to the correct air pressure.
OF3590
1
1
3 2
3. Mower Mounting Arm
4. PTO (Long) Mower
Belt
Of0316
Level the mower with the slots where 4 chains fasten to
the mower mounting brackets (Figure 20).
1. Shut off engine. Engage parking brake. Remove
the ignition key.
2. Raise mower deck to its highest position and place
4.75 in. (12.1 cm) tall blocks at each rear corner
and 4.625 in. (11.7 cm) tall blocks at each front
corner.
3. Lower deck onto the blocks.
4. Loosen the locknuts on the side where the chains
are slack and slide the bolt down the slot until the
chains are tight.
5. Tighten the locknuts.
6. Lift mower and remove blocks.
7. Measure height of deck at each side.
Measurements must be within 3/16 in. (4.76 mm) of
each other.
8. If measurements are out of range, fix by adjusting
chains on low side of deck.
9. Once deck is level side to side, measure height of
deck at middle of front and on both sides of rear.
Front of deck should be 1/8 in. + 1/8 in. (3.18 + 3.18
mm) lower than rear.
3
5
1. Chains
2. Lock Nuts and Slots
3. Mower Mounting
Brackets
GB - 24
1 3
2
4. 4.675 in. (11.7 cm)
Blocks
5. 4.75 in. (12 cm) Blocks
Figure 20
1
4
OF3760