Moving Onto An Obstacle; Emergency Discharge During Blackout; Maintenance And Care Of The System - ATT Nussbaum HYMAX 4000 PH Série Manuel D'exploitation

The coupling between
the motor and pump is
defective
Defective cylinder
Pressure relief valve is
defective
Problem: The lift cannot be lowered
Possible causes:
Lifting table is sitting on
an obstacle
Hydraulic valve defective Inform customer service
The u "Lower" button is
defective
6.1

Moving onto an obstacle

If the system moves onto an obstacle during lower-
ing, then it remains in position due to the mechan-
ical resistance. In this case, move the lift upwards
by pushing the o "Lift" (2) button on the operating
panel until the obstacle can be removed. After-
wards the lift is in a normal work condition and can
continue to be operated as described in the oper-
ating manual.
6.2

Emergency discharge during blackout

An emergency discharge is an ac-
cess into the system controls and may
only be done by experienced spe-
cialists.
The emergency discharge must be
done in the following described se-
quence, otherwise it can lead to
damage and hazard to life and limb.
Any kind of external leakage is not
permitted and must immediately tak-
en care of. This is absolutely neces-
sary especially before an emergency
discharge.
Reason which make an emergency discharge
necessary are for example, electrical blackout, for
errors in the lowering valves, etc.
1. Switch off the main switch (2).
2. Loosen and remove the front unit covers (1).
3. Unscrew the pins of valves V1 and V2 counter-
clockwise.
OPI_JUMBO LIFT 4000 NT_V3.0_DE-EN-FR-ES-IT
Inform customer service
Inform customer service
Inform customer service
Remedy:
See 6.1 Moving onto an
obstacle
Inform customer service
2
13
14
2 Main switch
13 Valve V1
4. The lowering process starts immediately.
5. The entire lowering process must continuously be
observed. Observe the reaction of the vehicle.
6. Lower the vehicle to the lowest position.
7. Screw the pins of valves V1 and V2 back in com-
pletely.
7

Maintenance and care of the system

Before maintenance, do all prepa-
ration work so there is no danger to
life or limb or object damage during
maintenance and repair work.
Value is placed on long lifetimes and safety in the
development and production of Nussbaum prod-
ucts. To guarantee the safety of the operator, prod-
uct reliability, low running costs, keep the warranty
and also the long-lifetime of the product, proper
set up and operation is just as important as regular
maintenance and sufficient care.
The lift system is to be serviced at regular intervals
according to the following plan. For intensive oper-
ation and higher degree of contamination shorten
the service interval.
The complete function of the lift system is to be ob-
served during daily use. Customer service must be
informed of any malfunctions or leaks.
To simplify maintenance work, follow instructions on
the maintenance sticker that is found somewhere
on the unit, depending on the lift design.
5
5 Oil filling opening
14 Valve V2
002
69