Genie GR-12 Service Manual page 25

November 2005
REV B
Models without maintenance-free or sealed
batteries:
7 Remove the battery vent caps from all batteries
and check the specific gravity of each battery
cell with a hydrometer.
Result: If any battery cell displays a specific
gravity of less than 1.026, the battery must be
replaced.
8 Check the battery acid level of each battery. If
needed, replenish with distilled water to the
bottom of the battery fill tube. Do not overfill.
9 Install the battery vent caps.
Part No. 84700
Section 3 • Scheduled Maintenance Procedures
All models:
10 Check each battery pack and verify that the
batteries are wired correctly.
11 Inspect the battery charger plug and pigtail for
damage or excessive insulation wear. Replace
as required.
12 Connect the battery charger to a properly
grounded 115V/60Hz or 230V/60Hz single
phase AC power supply.
Result: The charger should operate and begin
charging the batteries.
If, simultaneously, the charger alarm sounds
and the LEDs blink one time, correct the
charger connections at the fuse and battery.
The charger will then operate correctly and
begin charging the batteries.
If, simultaneously, the charger alarm sounds
and the LEDs blink two times, the input voltage
is too low or too high. Correct the voltage issue.
The charger will then operate correctly and
begin charging the batteries.
If, simultaneously, the charger alarm sounds
and the LEDs blink three times, the charger is
overheated. Allow the charger to cool. The
charger will then operate correctly and begin
charging the batteries.
GR-12 • GR-15 • GR-20
CHECKLIST B PROCEDURES
For best results, use an extension
of adequate size with a length no
longer than 50 feet / 15 m.
If you have any further questions
regarding the battery charger
operation, please contact the
Genie Industries Scissor Service
Department.
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