Gravely Promaster 250Z 992018 - PM 260Z Owner's/Operator's Manual page 18

WARNING: ELECTRIC SHOCK may result in
injury and/or damage to unit.
DO NOT allow tools or other objects to come
into contact with both terminals at same time.
ALWAYS remove Negative (–) Cable first to
reduce risk of sparks when removing Battery.
ALWAYS connect Positive (+) Cable first, then
connect Negative (–) Cable when installing
battery.
WARNING: EXPLOSIVE GASES can result in
serious injury or death. ALWAYS keep open
flames, sparks, or smoking materials away from
Battery.
POISONOUS BATTERY FLUID contains
sulfuric acid and its contact with skin, eyes or
clothing can cause severe chemical burns.
ALWAYS wear safety glasses and protective
gear near battery.
DO NOT TIP any battery beyond 45º angle in
any direction.
ALWAYS KEEP BATTERIES OUT OF REACH
of children.
WARNING: REVERSE CONNECTIONS may
result in sparks which may result in injury.
ALWAYS connect/disconnect cables in proper
order.
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.
Battery Electrolyte First Aid
• External Contact: Flush with water.
• Eyes: Flush with water for at least 15 minutes and get
medical attention immediately!
• Internal Contact: Drink large quantities of water.
Follow with Milk of Magnesia, beaten egg or vegetable
oil. Get medical attention immediately!
IMPORTANT: In case of internal contact, DO NOT
induce vomiting!
Terminals
Keep battery and its terminals clean. Inspect monthly to
maintain best performance. To clean terminals, remove
battery from unit by removing cables.
Remove tie down rod nuts and lift battery out. Clean or
service battery away from unit. Remove corrosion from
battery terminals and cable connections with wire brush,
then wash with a weak baking soda solution.
After cleaning, apply a thin coat of grease or petroleum
jelly to terminals and cable ends to retard corrosion.
Reinstall battery.
Electrolyte Level
Every 25 hours of operation check electrolyte level of
each cell by removing caps one at a time. The electrolyte
level should be at level indicated. Use distilled water to fill
each cell if needed. Install and tighten each cap after
checking.
IMPORTANT: When distilled water is added to battery
during freezing weather, battery must be charged to mix
water with electrolyte, or water will remain at top and
freeze.
Battery Charger
Under normal conditions the engine alternator will have
no problem keeping battery charged. When unit has set
for an extended period of time without operation and the
battery has been completely discharged, a battery
charger will be required for recharging.
Before using a charger, an attempt can be made to
recharge the battery using the engine alternator by jump
starting the unit and allowing the engine to run.
Charging
WARNING: FROZEN BATTERIES CAN
EXPLODE and result in death or serious injury.
DO NOT charge a frozen battery. Let the battery
thaw out before putting on a charger.
IMPORTANT: DO NOT fast charge. Charging at a higher
rate will damage or destroy battery.
ALWAYS follow information provided on battery by
battery manufacturer. Contact battery manufacturer for
extensive instructions to charge battery.
1. Put unit into service position to gain access to
battery.
2. Disconnect negative (–) cable first, then positive (+)
cable (Figure 12).
3. Remove hold down and remove battery.
4. Place Battery on bench or other well ventilated place
where electrolyte spill will not create damage.
5. Initial Battery Setup - Remove caps and fill each
cell to level indicated with electrolyte at 1.230±
specific gravity and 80°F (27°C).
• Let battery stand for one half hour.
• Check electrolyte level and add more if necessary.
6. Connect positive (+) lead of charger to positive (+)
terminal, and negative (–) lead to negative (–)
terminal.
7. Charge the battery at two and a half amps for ten
hours or until all cells are gassing freely and the
specific gravity is constant over three 30 minute
intervals.
GB - 19