ATT NUSSBAUM COMBI LIFT 4.40 S, Operating Manual, Inspection Book

Page: 138 / 184

138 OPI_COMBI LIFT 4.40 S PLUS AMS_V3.0_DE-EN
• Continue to push the “LOWER” button
u
until the
vehicle reaches the desired working height or un-
til reaching the lowest position.
• Continuously observe the entire process.
5.7 Lift out of the safety ratchets
Check the hazardous area around the
platform and ensure that there are no
people or objects in the immediate
vicinity of, or on, the platform.
• Push the “LIFT” button
o
(12) until the catches are
released.
5.8 Lowering the vehicle
!
Check that there are no people or objects in the
hazardous area of the lift.
If the lift will be or is set in down in the safety rat-
chets, then the lift must be moved out before lowe-
ring by lifting out of the ratchets according to § 5.7
• Push the “LOWER” button
u
(13) to start the lowe-
ring process.
• The 4 safety ratchets are pulled back electrically
and after approx. 1.5 sec the lift starts to lower.
• Lower the lift to the desired position.
• The entire lowering process must be continuously
observed.
• Shortly before reaching the lowest position the lift
automatically switches off to prevent crushing in
the foot area (CE STOP).
• Push the “LOWER” button
u
(13) to restart the lo-
wering process.
• The 4 safety ratchets are pulled back electrically
and after approx. 1.5 sec, the lift starts to lower.
• An acoustic warning signal sounds during lowe-
ring until the floor is reached.
• Once the lift is at the lowest position, the vehicle
can be driven off the lift.
5.9 RFH rail height equalisation
Longer continuous operation of the wheel free lift
without ever reaching the lowest position can result
in asynchronous running of the drive in rails. In nor-
mal cases height equalisation resets after a longer
waiting time (cooling of the oil).
For a residual height difference proceed as follows:
• At the wheel free lift, move the RFH switch (14) to
“I”.
• Push the “LOWER” button
u
(13) and hold it until
both rails of the wheel free lift have reached the
lowest position.
• Wheel free lift is functioning normally.
5.10 Safety switch below the drive rails
The lift has a safety switch (4) fitted below the drive-
in rails used to monitor the cables. This triggers if,
• a cable breaks
• the lift moves onto an obstacle and the cable
loosens
• only one safety ratchet has a catch latched in
and the cable is loose.
i
The lift then remains in place with no functionality.
6 Behavior in cases of error
Defective operational readiness of the system may
be due to a simple error. Check the system 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
“LIFT” button
o
defec-
tive
Check function
Inform customer service
Motor has overheated Let the water cool (Coo-
ling time depends on
ambient temperature)
Motor defective Do an emergency
discharge (see Section
7.2)
Inform customer service
Insufficient hydraulic oil
available
Refill new hydraulic oil
Cable broken, safety
switch is activated
Stop lift, inform customer
service