Separating Cartridge; Suction Valve; Coupling; Lip Seals - MIL'S EVISA E25.R Betriebsanleitung

EVISA E25.R / E40.R / E65.R / E100.R / E200.R / E300.R / E350.R / E400.R / E500.R / E600.R
3.3.4.

Separating cartridge

The separating cartridge will clog up more or less quickly depending on the degree of impurities sucked in.
These cartridges are not reusable. We recommend a change at 3 000 hours.
This frequency must be adapted to suit your pumping application.
Excessive clogging of the separating cartridge will increase the pressure drop. The flow rate
will decrease, the motor intensity and temperature of the pump will increase. The cartridge
may crack and the pump will emit fumes through its exhaust.
1
2
Assembly advice:
Remove the nuts [1] and plate [2] with its gasket.
Unscrew [3] so as to release and remove the bracket assembly [4]. Remove the oil separating cartridge [5].
Reassembly:
Position the cartridge nose correctly in the pressure box housing so that the O-ring [6] rests on the face
provided in the pressure box. Replace bracket assembly [4] and screw in [3] to seal the O-ring [6]. Once the
new cartridge (s) is/are in place, before replacing the cover plate [2] and if application permits, turn on the
pump to ensure that there is no smoke. If there is smoke, the cartridge is incorrectly positioned: the O-ring
[6] does not properly gasket. Adjust the cartridge assembly. Replace plate [2] with new gasket. Tighten nuts
[1].
Note: Number of separating cartridges
E25.R / E40.R / E65.R / E100.R E150.R / E200.R
One
3.3.5.

Suction valve

A screen [1] is located at the pump's suction port. Depending on the level of impurities sucked up, it must
be cleaned regularly by washing or blowing. Replace it if it's necessary.
Remove the suction flange [2]. Remove and clean the screen [1]. Replace the valve [5] (except E25.R /
E40.R / E65.R / E100.R models). Replace the flange o'ring [3].
520746-00
5
3
4
6
E300.R E350.R / E400.R / E500.R
Two Three Five
E25.R / E40.R
E65.R / E100.R
2
1
5
3.3.6.

Coupling

The coupling ring is subject to wear that relates to the service conditions (number of stop/start cycles,
temperature, etc.); check the condition of the coupling ring and the fingers of the 1/2 sleeves that
accommodate the ring. If necessary, replace them by removing the electric motor.
The E25.R and E40.R models are not equipped with coupling.
3.3.7.

Lip seals

The rotor shaft outlets are sealed by lip seals. These seals are subject to wear that depends on the service
conditions. This wear can be characterized by two phenomena: oil leakage or reduction in the final vacuum
due to air intake.
E25.R / E40.R: Remove the various motor components (cover, impeller, stator, rotor). Contact us for
assistance with ordering the necessary tools. Remove the pump ventilation assembly (except E25.R) and
remove the rear plate. Remove the rotor from the pump unit and then follow the procedure for changing a
bushing as indicated below for replacement of the front and rear bushings (except E25.R which does not
have a rear bushing).
E65.R / E100.R / E150.R / E200.R / E300.R: Remove the motor and detach the 1/2 coupling sleeve from the
E600.R
rotor shaft. Remove the radiator (except E65.R / E100.R / E150.R) and remove the pump ventilation unit.
Six
Follow the procedure for changing a bushing as indicated below for replacement of the front and rear
bushings. It is not necessary to disassemble the lamp or remove the rotor from the pump unit to replace
the lipped bushings.
E350.R / E400.R / E500.R / E600.R: Remove the motor and detach the 1/2 coupling sleeve from the rotor
shaft. Remove the radiator and remove the pump
ventilation unit. Remove the front and rear plates. Follow
the procedure for changing a bushing as indicated below
for replacement of the front and rear bushings.
Procedure for changing a ring: Remove and check the
condition of the existing wear ring [1], change it if
necessary. Remove the lip seal ring [2] and reassemble a
new one with a tool ensuring perpendicularity with respect
to the rotor axis (consult us for assistance with ordering
the appropriate tools) having previously applied a light
E150.R / E200.R / E300.R
2
1
4
4
5
3 3
2
1
E350.R / E400.R
E500.R / E600.R
2
1
3
5 4
14