Storage - Gravely 890012 Owner/Operator And Parts Manual

Promaster 310 mower decks
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LEVELING THE MOWER DECK
These adjustments should be made on a level surface
with the tires inflated to the correct air pressure.
The mower is leveled from side to side with the slots
where 4 chains fasten to the mower mounting brackets.
The mower is leveled from front to rear by adjusting the
rod running down each side of the frame (Figure 12).
1. Raise mower deck and insert 3" (7.6 cm) tall blocks
to support deck.
2. Lower deck onto blocks so chains are slack.
3. Measure from bottom of mower blade end to
ground.
4. Set hydraulic lift cylinder so cut of height reads the
same as blade height measurement.
NOTE: The cutting height range on this unit is 1" - 5". It
may be necessary to adjust the lift cylinder rod end to
attain these heights.
5. Loosen the locknuts on the side where the chains
are slack and slide the bolt down the slot in mower
mounting bracket until the chain is tight.
6. Tighten bolt and nuts in mower mounting brackets.
7. Lift mower and remove blocks.
8. Measure height of deck at each side.
Measurements must be within 1/16" (1.5 mm) of
each other.
9. If measurements are out of range, fix by adjusting
chains on low side of deck.
10. 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" (3 mm) lower than
rear.
WARNING: AVOID INJURY. Read and
understand Storage Safety Rules in Safety
section before proceeding.
SHORT TERM
IMPORTANT: NEVER spray unit with water or store
unit outdoors.
Inspect unit for visible signs of wear, breakage or
damage.
Keep all nuts, bolts and screws properly tightened and
know unit is in safe working condition.
Lowest
Mowing
Position
Highest
Mowing
Position
OF3160
Figure 11
11. To adjust, loosen rear hex nut of the front mower lift
pivot on each rod.
12. Turn the front hex nut on each rod until mower is
1/8" (3 mm) lower in front.
NOTE: If mower cannot be leveled it may be necessary
to loosen the rear nut of the rear mower lift pivot to get
more threads at the front of rod for adjustment. After
loosening rear nut and adjusting level, tighten front nut
on rear mower lift pivot.
13. Tighten rear hex nut on each rod that was
loosened in step 11.
8
5
6
1. Rod
2. Rear Jam Nuts
3. Front Jam Nuts
4. Chains
5. Bolts and Nuts
NOTE: See Figure 7 for 50" and 72' chain
locations.

STORAGE

Store unit in a cool, dry protected area.
LONG TERM
Clean unit thoroughly and lubricate (see Maintenance).
Touch up all scratched painted surfaces.
Remove weight from wheels by putting blocks under
frame or axle.
When storing unit for extended periods of time, remove
all fuel from tank and carburetor (run dry). Refer to
engine manual.
Clean and charge the battery. Charge battery every
three to four weeks when storing unit.
12
Right Side View
60" Deck
10
9
1
4
4
Front of Unit
6. Mower Mounting
Brackets
7. Front Mower Lift Pivot
8. Rear Mower Lift Pivot
9. Hydraulic Cylinder
10.Lift Cylinder Rod End
Figure 12
2
7
3
5
6
OF3220

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