Gravely Pro-Stance 99410000-1948FL Owner's/Operator's Manual page 11

5. If the front-to-rear level is not within the tolerance, an
adjustment is necessary.
Adjusting Level (Front-to-Rear)
IMPORTANT: Avoid damage: Adjust the left and right deck lift
assist rods equally.
NOTE: Adjust side-to-side mower level before adjusting
front-to-rear level.
Adjust both sides of the mower deck equally.
All lift chains must remain taut.
MX20099
1. Loosen jam nut (H) on both deck lift assist rods.
2. Adjust front-to-rear mower level:
• Turn nut (I) on both sides clockwise to raise front of mower
deck, or counterclockwise to lower front of mower deck.
3. Verify that the adjustment on right and left sides is equal.
4. Tighten jam nuts (H).
5. Check front-to-rear mower level.
Checking and Adjusting Cutting Height
CAUTION: Avoid injury! Rotating blades are dangerous.
Before adjusting or servicing mower:
Disconnect spark plug wire(s) or battery negative (-) cable
to prevent engine from starting accidentally.
Always wear gloves when handling mower blades or
working near blades.
Checking Overall Cutting Height
1. Inflate tires to correct pressure.
2. Lower mower deck to the 76 mm (3 in.) cutting height.
3. Position right mower blade (discharge side) parallel to the
direction of travel.
4. Measure from the front of the blade tip to the ground.
5. If blade tip height is not within 73-79 mm (2-7/8-3-1/8 in.), an
adjustment is needed.
Adjusting Overall Cutting Height
NOTE: When adjusting U-bolts, maintain a minimum clearance of
3 mm (1/8 in.) between mower deck and stop pads.
Adjust both sides of the mower deck equally.
All lift chains must remain taut.
MX20099
1. Adjust four U-bolts (A) (two on each side of deck) until blade
tip height is within 73-79 mm (2-7/8-3-1/8 in.) of the 76 mm
(3 in.) setting.
Adjusting Mower Deck Anti-Scalp Wheels
NOTE: The flattest cut can be achieved by having all anti-scalp
wheels adjusted off the ground. Check anti-scalp wheel
adjustments each time the mower deck cutting height is changed.
It is recommended that all anti-scalp wheels be kept off the ground
to minimize scuffing.
1. Inflate tires to correct pressure.
2. Adjust mower deck to desired cutting height.
MX15658
3. Adjust anti-scalp wheel (A) to one of three positions (D).
• Remove screw (E), nut (C) and washer (B).
• Adjust wheel up or down so it is approximately 6–13 mm
(1/4–1/2 in.) above mowing surface.
4. Install wheel with attaching hardware.
5. Adjust all wheels to the same height.
Testing Safety Systems
CAUTION: Avoid injury! Engine exhaust fumes contain
carbon monoxide and can cause serious illness or death.
Move the machine to an outside area before running the
engine.
Do not run an engine in an enclosed area without
adequate ventilation.
• Connect a pipe extension to the engine exhaust pipe
to direct the exhaust fumes out of the area.
• Allow fresh outside air into the work area to clear the
exhaust fumes out.
GB - 11