Troubleshooting - unicraft EWH Series Instruction Manual

Test the warning signal.
Check the contactor(s).
Checking the frame leakage (insula-
tion test)
Check function and mechanical
wear of the accelerator pedal.
Check the electrical system of the
drive motor.
Brake system: Check brake power,
replace brake disc if necessary or
adjust air gap.
Battery
Check battery voltage
Clean and grease the clamps and
check for corrosion and damage.
Check the battery housing for da-
mage.
Charger
Check the main power cable for da-
mage.
Check the start-up protection during
the charging process.
Functionality
Check the horn function.
Check air gap of electromagnetic
brake
Emergency braking test
Check reverse gear and regenera-
tive braking.
Check safety button function
Check steering function
Check the lifting and lowering func-
tion.
Check function of drawbar switch
General information
Check that all stickers are legible
and complete.
Check rollers, adjust or replace
height
Perform a test run
EHW-Series | Version 1.02

8.5 Troubleshooting

Interval
(Month)
If the operating results are not satisfactory, check the
following points before systematic checks and before no-
1 3 6 12
tifying the service center:
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Care, Maintenance and Repair
Fault Possible cause
1. Load too high
2. Battery low
3. Malfunction of
the lifting
contactor
4. Hydraulic oil
level too low
5. Oil leakage
Solution
1. Lift only the maxi-
mum capacity indi-
cated on the name-
plate.
2. charge the battery.
3 Check and, if neces-
sary, contact custo-
mer service for re-
placement.
4 Check the hydraulic
oil and top up if
necessary.
5. repair the cylinder
seal
15