Gravely MINI-ZT 915054, Owner'S/Operator'S Manual

Page: 18 / 28

GB - 18
Discard mower blade if (figure 17):
• more than 1/2 in. (1.27 cm) of metal is
removed.
• the air lift erosion area is eroded.
• the mower blade is bent or broken.
Do not change angle of cutting edge or round
the corner at the end of mower blade.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade.
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).
SERVICING THE 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 14).
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.
4. Tip seat back (see TIPPING SEAT
FORWARD on page 14).
Cleaning Battery and Battery Cables
(Figure 18)
1. Tip seat forward (see TIPPING SEAT
FORWARD on page 14).
2. Disconnect negative (–) cable first, then
positive (+) cable.
3. Clean battery cable ends, negative (–)
terminal, and positive (+) terminal with a
wire brush and rinse with a weak baking
soda solution.
4. Connect positive (+) cable first, then
negative (–) cable.
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.
1. Air Lift Erosion
Area
2. Cutting Edge
Figure 17
OE0052
2
1
DO NOT Sharpen to this Pattern
Sharpen to this Pattern
DISCARD
if more
than 1/2 in.
(1.27 cm)
OE0120
1. Battery
Hold-Down
Bracket
2. Negative (–)
Cable
3. Negative (–)
Terminal
4. Battery
5. Positive (+)
Terminal
6. Positive (+)
cable
Figure 18
1
5
3
4
6
2