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d
2
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
ZEPHYR 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 maintain a ZEPHYR that is at its normal operating temperature as there is a danger from hot parts.
1. Lubrication (pictures
)
The oil level in the sight glasses (I) should be checked monthly.
The oil level can only be topped up when the ZEPHYR is switched off and vented to atmospheric pressure.
The oil should be changed after 5000 operating hours under normal ambient conditions (see oil drain screws (K)).
The viscosity must correspond to ISO-VG 150 according to DIN 51 519. Designation according to DIN 51 502: CLP HC 150
We recommend the following oil brands: GEAR-LUBE 150 or equivalent oils from other manufacturers (see oil type plate (M)).
Note
If the oil brand is changed, the old oil must be drained completely from the oil chamber.
Old and used oil must be disposed of corresponding with the relevant health, safety and environmental laws.
2. Air filtration (picture
and
The capacity of the vacuum pump can be reduced if the air inlet filters are not maintained correctly as well the pump can be
overheated or destroyed.
The filter cartridge (f
) of the suction filter (S
1
changed yearly (depending on the degree of contamination the filter cartridges should be cleaned earlier).
Inlet cartridge cleaning:
Remove thumb screws (m
). Remove filter cover (d
1
by using compressed air.
Undoing the relevant retaining clips (m
compressed air.
Reassemble in reverse order.
m
2
f
2
)
) as well as the filter cartridge (f
1
) complete with gasket. Pull filter cartridge (f
1
). Remove filter cover (d
2
f
1
d
1
) of the vacuum tight suction filter (S
2
). Pull filter cartridge (f
) off and clean either by knocking out by hand or by using
2
1
- 3 -
m
1
) should be cleaned monthly and
2
) off and clean either by knocking out by hand or
1
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