JLG E300 Service Manual - Manual (Page 89)

SECTION 3 - CHASSIS & TURNTABLE
3121253 – JLG Lift – 3-55
3.10 BATTERY MAINTENANCE AND
CHARGING
TO AVOID INJURY FROM AN EXPLOSION, DO NOT SMOKE OR
ALLOW SPARKS OR A FLAME NEAR BATTERY DURING SERVIC-
ING. ALWAYS WEAR EYE AND HAND PROTECTION WHEN SER-
VICING BATTERIES.
Battery Maintenance, Quarterly
1. Open battery compartment cover to allow access to
battery terminals and vent caps.
WHEN ADDING WATER TO BATTERIES, ADD WATER UNTIL ELEC-
TROLYTE COVERS PLATES. DO NOT CHARGE BATTERIES UNLESS
ELECTROLYTE COVERS THE PLATES.
NOTE: When adding distilled water to batteries, non-metal-
lic containers and/or funnels must be used.
To avoid electrolyte overflow, add distilled water to
batteries after charging.
When adding water to the battery, fill only to level
indicated or 3/8" above separators.
2. Remove all vent caps and inspect electrolyte level of
each cell. Electrolyte level should be to the ring
approximately one inch from top of battery. Fill bat-
teries with distilled water only. Replace and secure
all vent caps.
3. Remove battery cables from each battery post one
at a time, negative first. Clean cables with acid neu-
tralizing solution (e.g. baking soda and water or
ammonia) and wire brush. Replace cables and/or
cable clamp bolts as required.
4. Clean battery post with wire brush then re-connect
cable to post. Coat non-contact surfaces with min-
eral grease or petroleum jelly.
5. When all cables and terminal posts have been
cleaned, ensure all cables are properly positioned
and do not get pinched. Close battery compartment
cover.
6. Start hydraulic system and ensure that it functions
properly.
Battery Charging, Daily
NOTE: To avoid excessive battery charging time, do not
allow batteries to become completely discharged.
NOTE: To avoid electrolyte overflow, add distilled water to
batteries after charging.
NOTE: When adding water to the battery, fill only to level
indicated or 3/8" above separators.
1. Charge batteries at the end of each work day, or
when machine performance is significantly reduced
due to batteries becoming discharged.
2. Charge batteries in accordance with the following
procedure:
a. Open battery compartment, and battery charger
compartment covers.
WHEN BATTERY CHARGER IS TO BE USED, CHARGING HARNESS
MUST BE PLUGGED INTO A GROUNDED RECEPTACLE. IF RECEP-
TACLE IS NOT GROUNDED AND A MALFUNCTION SHOULD
OCCUR, THE MACHINE COULD CAUSE SERIOUS ELECTRICAL
SHOCK.
b. Remove charging harness cable and connect to
a receptacle or the correct voltage.
c. Allow batteries to charge until 100% LED is illu-
minated.
NOTE: When batteries are completely charged, disconnect
charging harness cable from receptacle. Store
charging harness cable.
d. Ensure battery cables are positioned and are not
pinched. Close and secure all compartment
doors.