31
IMPORTANT
If you believe that the batteries are draining too quickly, have the batteries and the cables
to the power pack inspected by a specialist. It may be necessary to repair or replace the
cables, ground connection, or batteries.
IMPORTANT
Make sure that the battery charging intervals between individual loading and unloading
operations are sufficient.
Electric motor
The electric motor of the hydraulic power pack has a capacity of 0.8 kW to 3 kW,
depending on the liftgate’s load-carrying capacity.
At full operating voltage, the current is as follows:
At 12 volts, the current is up to 150 amperes. If the operating voltage drops to 9 volts, the
current doubles to 300 amperes.
At 24 volts, the current is up to 150 amperes. If the operating voltage drops to 12 volts,
the current doubles to 300 amperes.
WARNING
This high current accompanied by a low voltage causes the copper winding to overheat.
As a result, the protective coating on the copper winding melts, possibly resulting in a
short circuit or motor burnout.
How to prevent damage to the electric motor and power relay
You can prevent damage to the electric motor and power relay by ensuring that there is
sufficient voltage to operate the liftgate at all times. If you notice that the electric motor
has difficulty with a load that is normally easy to lift, stop the lifting operation immediately
and charge the batteries.
DANGER
Electrical system with on-board voltage:
The liftgate receives electrical power from the vehicle’s on-board power supply
(max. 48 V DC). The electrical system is designed using state-of-the-art technology.
Do not damage or modify electrical components or wiring.
Fire and explosion hazard. Excessive current may damage the battery or cable harness.
To prevent this, visually inspect the electrical system (maintenance schedule).
Summary of Contents for GPC 17 X-1
Page 48: ...44 Notes...