vacuubrand RE 2 - Page 44

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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product.
Disassembly of the pump
- Drain oil (see ”Oil change” in the instructions for use).
- Disassemble separator and oil mist filter if necessary.
- Remove both connection hoses between rotary vane pump and diaphragm pump.
- Position pump so that it rests on the face of the oil reservoir (on rating plate).
- Remove hose cover at the rotary vane pump side.
- Unscrew screws at the motor and remove aggregate from the housing.
Disassembling the pump unit
- Remove cover plate.
- Loosen the screw at the coupling and remove coupling using two flat-bladed screw drivers.
- Remove fit-in key.
- Disassemble screws at the removable sleeve, remove removable sleeve and assemble a new one.
- Unscrew screws at the removable sleeve and remove sleeve.
- Unscrew screws at the rear side of the pump housing.
- Remove housing with pump unit from the oil reservoir and position it on the housing.
- Remove bearing cover.
- Remove threaded plug of the detent ball in the bearing cover. Remove and check detent ball with
spring, replace if necessary.
- Disassemble silencer nozzle. Attention: The nozzle is secured with adhesive Omnifit
®
50M. Check
silencer nozzle for passage and clean if necessary.
- Remove two aggregate screws and remove bearing cover.
- Remove oil pump rotor with oil pump vanes.
- Check vanes and replace if necessary.
- Remove low vacuum stage stator with oil separator. Check oil bores for passage.
- Disassemble outlet valve. Check valve cap, spring and valve seat. Replace valve cap and spring if
necessary.
- Remove low vacuum stage rotor with vanes. Disassemble coupling and rotary vanes. Check vanes
and replace if necessary.
- Remove intermediate bearing plate, high vacuum stage stator, high vacuum rotor with coupling.
Changing the shaft seals
- Check shaft seals in the bearing plate and bearing cover and replace if necessary.
- Remove shaft seal from housing.
- Press in new shaft seal by using an appropriate mandrel (special tool, see below), make sure that it
remains level to bore.
☞ Assemble shaft seals only by using a special mandrel (see table and drawings). Apply pressure only to
the outer ring. Take into consideration that the mandrel will pass under the seal and ensure that no
other part can be damaged.
OmniFit
®
is a registered trade mark of Henkel Technologies