Routine Maintenance; Extraordinary Maintenance / Repair; Troubleshooting - Rothenberger ROAIRVAC Serie Instrucciones De Uso

In case of malfunctioning, stop the pump and call the Service- After-Sales.
Pump stop
As the mixture of incompatible lubricants (pump oil and compressor oil) can lead to pump failure,
installing a non-return solenoid valve at the suction connection is required (provided). In case of
frequent on-off cycling, do not stop the pump but shut-off at the charging hose or manifold in-
stead.
7

Routine maintenance

Periodic and correct maintenance of the vacuum pump will ensure a long operation life and con-
stant performance.
Lubrication
The oil provided with the pump has been specially formulated & manufactured to lubricate vacu-
um pumps; it is special as it features minimum viscosity fluctuation when in use under a wide
temperature range. The type of lubricant supplied with the pump allows the evacuation of sys-
tems operating with CFC, HCFC and HFC refrigerants. Working with ROTHENBERGER POE
synthetic oil is also feasible. Both ROTHENBERGER oil types available after order. Volumes to
be filled into the pumps are specified in section 1.1. Replace the oil charge no later than 20
hours of operation. Oil could be polluted by other oil, humidity, refrigerants, etc. It is mandatory
to use oil in perfect conditions to assure a perfect performance of the pump.
Oil-change
Over-used lubrication oil damages the pumps' mechanism; make sure to replace oil as soon as
it starts to turn cloudy. For conducting the oil-change, the pump must be switched off. For
changing the oil proceed as follows:
1. Unscrew the oil drainage plug located on the lower part of the pump
2. Check that oil comes out completely from the pump
3. Tightly screw the oil drainage plug back on
4. Re-fill the pump with oil (see "Filling of oil")
WARNING: Do not pollute the environment by spilling oil; the lubricant oil is a special waste
and must be disposed of according to relevant local law / guidelines in force.
8

Extraordinary maintenance / repair

Conduct extraordinary maintenance or repair whenever serious faults occur such as overheat-
ing, poor ultimate vacuum, persistent loudness / noise, blocked pump or any other irregular func-
tioning.
In that case, the pump needs to be disassembled, parts need to be cleaned, repaired or re-
placed. Only qualified service staff shall carry out such maintenance or repair work; otherwise
the warranty will be void.
For any information please contact our Service-After-Sales.
9

Troubleshooting

Problem
The pump doesn't
work
Overheating
Solution
1. Check that the pump is connected to the power supply.
2. Check that the plug and cable are not damaged.
3. Check that the power supply is suitable for the pump requirements
(see the label of the pump).
4. Check that the pump is filled up with oil (see section 2.1).
5. Contact our Service-After-Sales.
1. Check that the pump is filled up with oil (see section 2.1).
2. Check that the pump is not covered and that air could flow easily.
3. Check that the power supply is suitable for the pump requirements
(see the label of the pump).
4. Contact our Service-After-Sales.
ENGLISH 17