MAINTENANCE
GTTZ10EJ Maintenance Manual 5-47 © Mar. 2022
Open-Circuit Voltage Test (Rarely Used)
1. To obtain an accurate voltage reading, do not use
the battery for at least 6 hours, but, it is best not to
use the battery for 24 hours.
2. Measure the voltage of each individual battery.
3. Equalize the battery rack if the voltage of any
battery is 0.3V higher than that of other batteries in
the battery rack.
4. Re-measure the voltage of each individual battery.
5. The battery may have a problem if the voltage of
any battery is 0.3V higher than that of other
batteries in the battery rack.
There are other battery tests to evaluate battery
performance, such as discharge test, which is no longer
to be detailed here.
Electric cable
1. Preparation
UNSAFE OPERATION HAZARD
• Cordon off the test area before the
maintenance is performed.
• The machine must be positioned
on a level, firm surface clear of
obstructions.
• The disassembly, if needed, must
be performed by qualified trained
personnel with power supply
completely off.
ELECTROCUTION HAZARD
• Before inspecting the electric
cables, be sure to disconnect the
battery and the and the battery
charger from the AC outlet.
Contact with live electric cable
may result in death or severe
injury.
• Remove all rings, watches and
other jewelry.
• Be sure to wear goggles,
protective clothing and gloves
(insulated).
1. Inspection
1. Inspect the electric cables of the following areas for
damage or corrosion：
• Power unit harness
• Mast harness
• Ground controls
• Platform controls
• Battery harness
• Charger harness
2. Inspect each flexible connection for loosening, and
ensure the sensor wiring free of damage.
OVERALL MACHINE PARTS
Manuals and Decals
• See the Decals/Nameplates Inspection section in
Operation Manualand use the decal list and chart to
determine where each decal is located. Ensure all
decals are legible and free of damage, otherwise
timely replace.
• Ensure the Operation ManualandMaintenance
Manualare intactly stored in the manual storage
container.Inspect each sheet of the manuals to
ensure legibility and integrity of the contents.
NOTICE
If the decal or manual needs to be changed, please
contact Hunan Sinoboom Intelligent Equipment Co.,
Ltd.
Structural Parts
1. Preparation
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