JLG M450 ANSI Service Manual - Manual (Page 85)

SECTION 3 - CHASSIS & TURNTABLE
3121127 – JLG Lift – 3-45
3.9 BATTERY MAINTENANCE AND
CHARGING
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-metallic
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.
Optional On Board Generator
EXHAUST GAS HAZARD. RUN THE GENERATOR IN A WELL VEN-
TILATED AREA ONLY.
WHEN THE GENERATOR ENABLE CONTROL LOCATED IN THE
PLATFORM CONTROL BOX IS IN THE ON POSITION AND THE
GROUND EMERGENCY STOP SWITCH IS ON (PULLED OUT), THE
GENERATOR WILL START AUTOMATICALLY WHEN THE BATTER-
IES REACH A LOW-CHARGE STATE, AUTOMATICALLY CHARGING
THE BATTERIES. THE GENERATOR WILL ALSO AUTOMATICALLY
START IF THE GENERATOR START BATTERY IS LOW.