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
The capacity of the pump can become reduced if the air
inlet filters are not maintained correctly.
Filters on the suction side: Mesh filter (f
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.
The mesh filter (f
) can be dismantled by removing screws (s
1
the filter housing (D) (picture
Filter for Gas ballast: All pumps are equipped with a gas ballast
valve (U).
The built in filter cartridge (f
) must be cleaned regularly depending
2
upon the amount of contamination by blowing out with compressed
air. By removing the screw (g
ments can be removed for cleaning. Re-assemble in reverse order
(picture
).
Filter Cartridge (Optional Extras): The filter cartridge of the vacuum
tight suction filter (ZVF) or dust separator (ZFP) must be cleaned
regularly again depending upon the amount of contamination.
Cleaning can be achieved by washing or by blowing out with
compressed air. Replace the filter cartridge if necessary. The
cartridge can be removed completely by undoing the relevant
retaining clips.
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 shortened if the application is dusty. Drain the oil also
from the oil cooler (see oil drain plug (K
Only oils corresponding to DIN 51 506 group VC / VCL or a synthetic oil (obtainable from Rietschle) should
be used. The viscosity must correspond to ISO-VG 100 according to DIN 51 519.
The recommended Rietschle Oil types are: MULTI-LUBE 100 (mineral oil); SUPER-LUBE 100 (synthetic
oil) (see oil type plate (M)).
When the oil is under a high thermal load, e.g. ambient or suction temperatures 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 oil separator housing and
the oil cooler.
3. Oil separation (picture
)
Extremely blocked filter elements will result in an increased pump temperature and will cause
discolouration of the lubricant.
The oil separator elements may become contaminated after a long period of operation which can result
in high pump temperature and motor overload. We therefore recommend to change the filter elements (L)
every 2000 operating hours or when the filter back pressure is in excess of 0.7 bar (see back pressure gauge (Y)
to clean these elements.
To change filters: Remove maintenance cover (W). Remove plastic fixings (t) and exchange the elements (L). If possible re-use the o-ring for
reassembly. Re-assemble in reverse order.
) must be cleaned regularly
1
).
) and plastic cap (h
) the filter ele-
2
2
)).
1
) on
1
D
f
1
f
2
optional extra). It is not possible
Y
L
s
1
g
h
2
2
W
t
