JLG X20JP - X600AJ Service Manual - Manual (Page 115)

SECTION 3 - CHASSIS & TURNTABLE
3121623 – JLG Lift – 3-91
Post
terminals
corroded.
Acid level
too low.
Malfunction Indication Possible cause Remedial action
Acid level less than
10 mm (0.4 in)
above top of cell
plates. Overloading, natural
water loss caused by
evaporation (esp. in
summer). Add distilled or
demineralised water.
Battery life
too low. Battery was discharged
too far or too frequently. Check ratings of battery
and generator, if
necessary use a special
“Z” or “HD” battery.
Battery tends to over-
heat. Choose a better installed
position.
Excessive loads im-
posed by vibration. Choose a better installed
position or use an “Rf”
(vibration-proof) battery.
Batterie is “sulphatising”. Recharge battery at low
current (app. 1/40 of
nom. capacity in Amps)
for app. 50 hours. Other -
wise: renew battery
Impurities in battery
acid. Renew the battery.
Insufficient current
transfer, “bloom”
(white salt deposit). Sulphuric acid attacks
metals (except lead). Wash the posts and
terminals down with hot
soda solution (but this
must not enter the
battery!), rinse with cold
water and apply acid-
resistant grease.