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Idiomas disponibles
Idiomas disponibles
Maintenance and Servicing
When maintaining these units and having such situations
where personnel could be hurt by moving parts or by live
electrical parts, the pump must be isolated by totally disconnecting
the electrical supply. It is imperative that the unit cannot be re-started
during the maintenance operation.
Do not work on a pump that is at its normal operating temperature, as
there is a danger from hot parts or hot lubricant.
1. Air filtration (picture
)
The capacity of the pump can become reduced if the air inlet
filters are not maintained correctly.
The mesh filter (f) must be cleaned regularly depending upon the amount
of contamination. Cleaning can be carried out by washing out or by blowing
out with compressed air. Replace filters if contaminated completely.
Dismantle the angle flange (D) by removing screws (s
return valve (h) out of the angle flange. Clean or replace the mesh filter (f).
Re-assemble in reverse order.
2. Lubrication (picture
)
Check the oil level regularly depending upon the operating hours. First oil
change after 500 operating hours (see oil drain plug (K)). Further changes
every 500-2000 operating hours. The oil change times should be short-
ened if the application is dusty.
Only oils corresponding to DIN 51 506 group VC/ VCL or a synthetic oil
(obtainable from Rietschle) should be used. The viscosity must corre-
spond to ISO-VG 46 according to DIN 51 519.
The recommended Rietschle Oil types are: MULTI-LUBE 46 (mineral oil);
SUPER-LUBE 46 (synthetic oil) (see oil type plate (M)).
When the oil is under a high thermal load, e.g. ambient or suction tem-
peratures over 30°C, unfavourable cooling or operating with increased
speed etc., the oil change time can be extended by using the recom-
mended synthetic oil.
Old and used oil must be disposed of corresponding with the
relevant health, safety and environmental laws.
If the oil brand is changed, the old oil must be drained completely
from the oil separator housing.
3. Oil separation (picture
)
Extremely blocked filter elements will result in an increased
pump temperature and will cause discolouration of the lubri-
cant.
The oil mist eliminator element may become contaminated after a long
period of operation which can result in high pump temperature and motor
overload. We therefore recommend that the oil separator element (L) is changed after every 2000 operating hours. It is not possible to clean these
elements.
To change separator: Remove exhaust cover (T) with gasket after unscrewing screws (s
screws (s
). Exchange the elements (L).
3
Re-assemble in reverse order.
h
). Remove the non-
1
f
D
s
1
Fine vacuum: 2 to 200 mbar (abs.)
Coarse vacuum: 10 to 600 mbar (abs.)
). Remove spring washer (L
2
L
s
3
X
X
) after unscrewing
2
L
2
s
2
T
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