Maintenance Section
114
Cold Storage Applications
When an electric lift truck is operated in cold
storage applications, at temperatures as low as -
20°C (-4°F), the battery capacity is decreased.
Operation at cold temperatures can also cause
mechanical failures, short circuits and too much
wear due to the formation of ice crystals.
The direct cause of these problems is the extreme
changes in temperature in combination with
humidity in the air which can result in condensation.
To protect the electric lift truck’s components and
decrease the effects of the cold temperature,
perform the following items before you put the lift
truck to work in cold storage applications.
Warm-up over 10 minutes before operation /
Operation within 1 hour (30 minutes at best, if
possible) / Storage outside of cold workplace.
1. Warm-up the vehicle over 10 minutes before
operation before operation in cold workplace.
For smooth operation through warm-up of
powertrain and hydraulic product & oil
Operate powertrain and hydraulic parts before
working in cold workplace
Warm-up for 15 min. in normal place / Operate
the actuating devices more than 3 times
2. Do not work more than 1 hour in the cold
storage plant
Every 30 min. of interval, go in and out of cold
workplace: similar rule for cold storage
warehouse
Stay for 30 min. outside cold workplace or,
warm-up more than 20 min. before operation
3. Store the vehicle outside cold workplace
Do not park or stop in cold workplace (Do not
leave the vehicle with the power off)
Lifetime of electric components and battery
may be seriously shortened while freezing and
melting, if the vehicle is parked inside cold
workplace with power off.
Battery
There is a reduction in battery capacity in cold
storage applications. For this reason, it is important
to:
a. Be sure the battery is completely charged at the
start of each work cycle.
b. If possible, keep the lift truck in a warm storage
area when it is not in use.
c. Do not store a discharged battery at below
freezing temperature.
Observe the battery discharge indicator frequently
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