Gravely 915076, Owner'S/Operator'S Manual

Page: 18 / 28

GB - 18
3. Check mower blade balance by sliding mower blade on
an unthreaded bolt. If blade is balanced, it should
remain in a horizontal position. If either end of mower
blade moves downward, sharpen the heavy end until
mower blade is balanced.
4. Install mower blade on unit (see REPLACING MOWER
BLADE on page 17).
ADJUSTING ANTI-SCALP ROLLER
NOTE: The anti-scalp rollers are intended to prevent lawn
scalping, not to control cutting height. All anti-scalp rollers
should be set at the same height.
See figure 17 for anti-scalp locations on models915076,
078, 080, 082.
There are two positions:
• Highest Position: Use to disable anti-scalp feature.
• Lowest Position: Use for all cutting positions.
In the lowest position the anti-scalp rollers will touch the
ground.
SERVICING BATTERY
NOTE: Unit comes equipped with a maintenance-free
battery that requires no regular maintenance except
cleaning the terminals.
Battery Removal and Installation
Remove (Figure 18)
1. Tip seat forward (see TIPPING SEAT FORWARD on
page 15).
2. Disconnect negative (–) cable first, then positive (+)
cable.
3. Remove battery hold-down bracket and battery from
unit.
Install (Figure 18)
1. Install battery on the unit with battery hold-down bracket.
2. Connect positive (+) cable first, then negative (–) cable.
3. Apply petroleum jelly or dielectric grease to battery
cable ends and terminals.
1. Air Lift Erosion Area 2. Cutting Edge
Figure 16
2
1
DO NOT Sharpen to this Pattern
Sharpen to this Pattern
DISCARD if more
than 1/2 in. (1.27 cm)
WARNING: Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Figure 17
1
1. Anti-scalp Roller
2. Lowest Position 3. Highest Position
3
2
1
3
2
Models 915076, 078, 080, 082