Rothenberger ROAIRVAC Serie Instrucciones De Uso página 12

INSTRUCTIONS FOR USE INSTRUCTIONS FOR USE
Set-up of pump before first operation
Pump is supplied without oil charge; before initial
operation, it is mandatory to fill the pump with the
recommended oil charge (see "Filling of oil").
Filling of oil
Pump must be turned off for filling the oil and level
control.
Pump is supplied with a mineral oil bottle but
without oil charge inside the vacuum pump; before
initial operation, it is mandatory to fill the pump
with the oil up to the indicated oil level in the oil
level sight glass. Only use ROTHENBERGER oil;
different lubricants reduce performance and may
cause irreversible damage to the pump. Warranty is
void if other oil has been used.
For fill-up proceed as follows:
1. Unscrew charging plug (placed on upper part
of pump)
2. Slowly add the oil until middle of sight glass
has been reached (indicated by MAX MIN line)
3. Screw-on the plug again
To avoid excessive filling, it is suggested to only add
the oil with a graduated recipient; in that way it is
easy to check the added volume. In case of excessive
filling, it is necessary to completely empty the pump
and repeat the oil filling procedure.
WARNING: Do not pollute the environment by
spilling oil; the lubricant oil is a special waste and
must be disposed off according to relevant local law
/ guidelines in force.
Connection for evacuation
Shorter hose length or wider ID, as well as straight
path, reduce the evacuation time as the pump
will reach the desired vacuum more quickly. To
prevent backflow of lubricant from the pump into
the evacuated system in case of unexpected power
failure, a solenoid non-return valve is provided at the
suction connection.
Power Supply
Always check the power supply; it has to comply
with the data on the rating label on the pump. The
pumps' motor is equipped with a thermal overload
protection with automatic reset and cuts off power
supply at +130°C / +266°F.
General precautions
12
The pumps' motor must always be suitably grounded.
The pump temperature is not expected to rise to
a very high level during operation; however it is
advisable to locate the unit in such a way that no
contact can be made, as it may cause burns. When
using the pump with other equipment, it must be
ensured that the pump is fixed properly and safe to
use for the operator. Vacuum pump is air cooled by
built-in fan; only use where the air can freely circulate
and keep it away from walls or obstacles no less than
2" (5 cm). Do not cover the pump during operation.
Operation
To guarantee reliability and high level of quality,
each pump is subjected to a rigorous testing and
suitable preliminary running in before it leaves the
factory. Constant performance and long operating
life are assured by strictly observing the following
procedures:
Pump start
Before the first initial run, it is mandatory to:
1. fill the pump with the provided oil (see section
"filling of oil").
2. Before subsequent start-ups, always check the
oil level before starting the pump. If necessary,
top-up or replace the oil.
3. before connecting the pump to the system to
be evacuated, check that there is no pressure
inside. In case of connecting the pump with
a pressurized system, the vacuum gauge may
break. The vacuum gauge measures negatives
pressures and get collapsed with positive
pressures. Warranty is void if the pump is
connected to a positive pressure.
4. connect the pump to the system to be evacuated
by the necessary equipment (quality hoses,
quality manifolds,etc). The evacuation quality
will be directly related to the way of conecction
and to the equipment quality.
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 instead.
ENGLISH