Repair Re/Z 2.5 / 6 - vacuubrand RE 2 Instructions For Repair

Repair RE/Z 2.5 / 6

Before starting repair, isolate the pump and other components from the vacuum sys-
tem and the electrical supply so that they cannot be operated accidentally. Allow the
pump to cool, so that it is at safe temperature for skin contact.
Before starting maintenance, wait two minutes after isolating the equipment from
mains to allow the capacitors to discharge.
Cleaning of components
☞ Observe applicable regulations when disposing of used oil and solvents which may be contaminated
by chemicals.
☞ Avoid damage of bearing and sealing surfaces!
☞ Seal rings: Use only clean oil and lint-free cloths. Replace seals rings if necessary.
☞ Silencer nozzle: Clean with length of thin wire (0.2 mm) and compressed air.
☞ All other components: Clean with petroleum or suitable solvent. Follow manufacturer`s instruction.
☞ After cleaning, dry all components with compressed air.
Tools
Hex key SW 3/4/5
Open-ended wrench SW 14
Phillips screw driver size 2 and 3
Flat-bladed screw driver size 2
Screw driver for stud bolt size M4 and M5
Replacing the removable sleeve
☞ In case of oil leaks of the pump (oil drops out at the lower side of the pump housing) it is often sufficient
to replace only the removable sleeve. Therefore it is not necessary to drain the pump oil.
- Disassemble oil mist filter if applicable.
- Close outlet of the pump.
- Position pump so that it rests on the face of the oil reservoir (on rating plate).
- Remove cover of the felt and check felt .
- Disassemble screws at the fan cover and remove fan cover.
- Disassemble screws at the motor and remove motor from the housing. Remove armature from motor.
- If the coupling is visibly worn, check for grooves (e. g. by feeling with finger nails). In case of depres-
sions, replace coupling. Do not polish coupling as thin hardened layer may be damaged and micro-
scopic grooves will cause oil leaks. Remove cross coupling.
- Remove the shielding.
- Disassemble screws at the removable sleeve, remove removable sleeve and assemble a new one.
- Position cross coupling in the aggregate.
- Fill in oil in the chamber in front of the removable sleeve.
- Position shielding with O ring.
- Attach the winding on the top of the housing. The motor armature glides through the removable sleeve
into the coupling.
- Assemble motor to housing.
- Check mobility of the aggregate by turning the impeller.
- Assemble fan cover.
- Replace felt at the lower side of the pump housing.
- Let the pump run with gas ballast valve open and inlet closed for approximately 1 hour.
Das Dokument darf nur vollständig und unverändert verwendet und weitergegeben werden. Es liegt in der Verantwortung des
Anwenders, die Gültigkeit dieses Dokumentes bezüglich seines Produktes sicher zu stellen.
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.
Seite 19 von 72 // page 19 of 72