Terex AL4L, Service Manual

Page: 28 / 67

REV B
August 2016
3 - 14 AL4L • AL5L Part No. 229171
Section 3 • Scheduled Maintenance Procedures
10 Check the ambient air temperature and adjust
the specifi c gravity reading for each cell as
follows:
• Add 0.004 to the reading of each cell for
every 10° / 5.5° C above 80° F / 26.7° C.
• Subtract 0.004 from the reading of each cell for
every 10° / 5.5° C below 80° F / 26.7° C.
Result: All battery cells display a specifi c gravity
of 1.277 +/- 0.007. The battery is fully charged.
Proceed to step 11.
Result: One or more battery cells display a
specifi c gravity from 1.269 to 1.218. The battery
is still usable, but at a lower performance so will
need to be recharged more often. Proceed to
step 11.
Result: One or more battery cells display a
specifi c gravity from 1.217 to 1.173. The battery
is approaching the end of its life. Proceed to
step 11.
Result: The difference in specifi c gravity
readings between cells is greater than 0.1 OR
the specifi c gravity of one or more cells is 1.172
or less. Replace the battery.
11 Check the battery acid level. If needed,
replenish with distilled water to 1 /
8
inch / 3 mm
below the bottom of the battery fi ll tube. Do not
overfi ll.
12 Install the vent caps and neutralize any
electrolyte that may have spilled.
B-2
Inspect the Electrical Wiring
Terex specifi cations requires that this procedure be
performed every 250 hours or quarterly, whichever
comes fi rst.
Maintaining electrical wiring in good condition is
essential to safe operation and good machine
performance. Failure to fi nd and replace burnt,
chafed, corroded or pinched wires could result
in unsafe operating conditions and may cause
component damage.
WARNING
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
1 Inspect the following areas for burnt, chafed,
corroded and loose wires:
• Ground controls
• Battery pack (if equipped)
• Engine (if equipped)
• Mast
• Lighting junction box
• Trailer lighting wire harness
2 Inspect for a liberal coating of dielectric grease
in the following locations:
• Lighting junction box
• Ground controls
• All wire harness connectors
CHECKLIST B PROCEDURES