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Instruction manual 5900110x
Version 1 July-08
It is advisable to use a thin filter to avoid filings, dust or any other object to go into and
damage the pump.
Lubrication: it is very important to control periodically the oil level. It must be checked
with the pump on, and in vacuum. The oil level must be approximately at the middle of
the sight glass
(1.4)
.
ATTENTION: Verify always that the oil level is correct since an excess of oil will pro-
duce a wrong operation of the pump.
Oil change
The oil change must be performed whenever the colour of the oil has changed and must
be always done with the pump off and warmed. For this purpose proceed as follows:
Open the oil outlet
(1.5)
and drain the oil.
Close again the oil outlet
(1.5)
and switch the pump on for 1 minute approximately, to
let the remaining oil inside the pump to be removed.
Stop the pump, repeat the process to drain the remaining oil and close the oil outlet (5).
Add new oil through the oil inlet
(1.3)
until the level reaches the middle of the glass
sight
(1.4)
.
With the pump on and in vacuum, verify that the oil level is correct.
Note: Always use a type of oil suitable for vacuum pumps.
Gas ballast valve
Nahita high vacuum pumps are provided with a gas ballast valve
(1.6)
to avoid the oil
emulsion with agents such as moisture, gases, condensed vapours, etc.
If you are not using the pump for a long period of time please make sure it is discon-
nected from the net and protected from dust (this way you will avoid accidents and will
extend its working-life).
Security
The pump must be used by previously qualified staff that knows how the equipment
works thanks to the user manual.
Put the pump on top of a horizontal, plane and stable surface so as vibrations produced
during operation do not disturb nearby equipments. The back side of the pump must be
perfectly ventilated and free of obstructions.
Do not put the pump near any warm supply (burners, blowlamps…), nor expose it
directly to the sun, etc. Avoid vibrations, dust and dry environments.
During operation, flammable liquids must be out of the working area.
When you are not using the pump for a long period of time please make sure it is
unplugged in order to avoid possible accidents.
It is essential to have the equipment switched off and unplugged from the net before
cleaning, checking components or replacing any piece.
Never try to repair the pump by yourself, since you will lose the warranty and may pro-
voke damages to the general operating system or the electrical installation, as well as inju-
ries to the people that usually handle the equipment (burns, hurts…).
Version 1 July-08
Instruction manual 5900110x
Page 15
Try not to spill any liquid on the control panel, though it is properly insulated. In case
you have any doubts do please immediately unplug the pump (see Maintenance).
Made under the European regulations for electrical security, electromagnetic compati-
bility and security on machines.
5. MAINTENANCE AND CLEANING
To get the best results and a higher duration of this equipment it is essential to follow
the processes of use.
Note: All the processes of use mentioned below will not have any value unless you keep
a continued and careful maintenance.
Please follow the processes of use of this manual.
This manual should be available for all users of this equipment.
The brushless motor is maintenance-free.
Always use original components and supplies. Other devices can be similar but they
can damage the equipment.
Always use a type of oil suitable or vacuum pumps; the use of any other type of oil will
provoke damages to the equipment.
The pump is supplied with a Schuko standard wire. It has to be plugged to an earth con-
nection and the socket should be handy and ready to unplug the equipment in case of
emergency.
Never try to repair the pump by yourself, since you will lose the warranty and may pro-
voke damages to the general operating system or the electrical installation, as well as inju-
ries to the people that usually handle the pump (burns, hurts…) or damages in nearby
equipments.
In the event of breakdown please contact your distributor to overhaul through Nahita
Technical Assistance Department.
6. TROUBLESHOOTING
1) The pump does not star
CAUSE
SOLUTION
The electric motor:
Check the power supply
- Is not properly connected
- Does not have the properly power supply
- Low tension
- The starting is not correct according to its power
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