Nussbaum HF 3S 12000, Operating Manual

Page: 26 / 64

26 OPI-POWER LIFT HF 3S 12000-V1.0-EN
5.4 Lowering the vehicle
!
Check that there are no people or objects in the
hazardous area of the lift.
• Lower the vehicle to the desired working height.
Pull the operating lever (9) slowly backwards =
“LOWER” (19).
i
For heavier vehicles, lift it slightly before lowering
to prevent an “sticking” and any corresponding
jolt during lowering.
• The entire lowering process must be observed.
• Lowering speed can be seamlessly adjusted.
• Once the lift is detected in the lowest position,
swing out the lifting arms to the start position (see
image 028).
• Move the vehicle out of the lift.
!
Putting down into the locking mechanism: Press
button (16) Fig. 009 and simultaneously pull the
operating lever (19).
CE Stop:
When the lift is lowered, it stops at a height of ap-
prox. 20 cm above the floor. To lower the lift com -
pletely, press button (16) and simultaneously pull
the control lever (19).
6 Behaviour in cases of error
Defective operational readiness of the lift may be
due to a simple error. Check the lift for the listed
sources of error.
If the error cannot be removed after an inspection
to the named causes, then inform customer service
or your dealer.
Independent repair work on safety
devices of the lift and checking the
electrical system may only be done
by specialists.
Problem: The lift cannot be raised
Possible causes: Remedy:
No power supply Check the power supply
Only 2 phases active Do an on-site check with
a qualified electrician
The main switch is not
switched on, or is de-
fective
Check the main switch
Defective fuse Check fuses
Operating lever defec-
tive
Check function; Inform
customer service
Motor has overheated Let motor cool (cooling
time dependent on am-
bient temperature)
Motor defective Do an emergency dis-
charge (see Section 7.2);
Inform customer service
Insufficient hydraulic oil
available
Refill new hydraulic oil
The vehicle is too heavy Unload vehicle
Problem: The lift cannot be lowered
Possible causes: Remedy:
The lifting arm has
moved onto an obsta-
cle
Raise the lift and remove
the obstacle
Operating lever defec-
tive
Check function; Do an
emergency discharge
(see Section 6.1); Inform
customer service
CE stop valve is defec-
tive
Inform customer service
CE stop switch is active Push button (16) and pull
the lever (19)
6.1 Emergency discharge
An emergency discharge is an ac-
cess into the lift controls and may only
be done by experienced specialists.
The emergency discharge must be
done in the following described se-
quence, otherwise it can lead to
damage and hazard to life and limb.
People may not stand in the hazard-
ous area around the lift.