GA01201_1002 - 07/2005
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Pull the bushing out from the centering disc and force the shaft seal (12/9)
out of the centering disk.
We recommend the use of a new shaft seal, an O-ring and bushing for
reassembly. Before insertion, moisten the new shaft seal slightly with a
little vacuum pump oil.
Using a suitable plastic or aluminium cylinder (shaft seal driver) and a pla-
stic hammer, force the shaft seal (12/9) carefully and without bending it into
the centering disk (for position of shaft seal, see Fig. 12).
If you do not have a shaft seal driver, place the shaft seal on the opening in
centering disk and carefully force it in with light blows of the plastic ham-
mer. The shaft seal must not be bent.
Carefully push the bushing (12/8) into the shaft seal.
Push the centering disk (12/10) with the shaft seal and bushing onto the
shaft and up against the end plate; fasten it with the hex. socket screws
(12/11).
Push the O-ring (12/7) and the compression disc (12/6) onto the shaft.
Insert the key (12/5).
Mount the pump-half of the coupling (12/4) on the shaft.
Install the spring washer (12/3) and tighten the hex. screw (12/2).
Insert the coupling element (12/1) into the coupling and mount the motor
(see Section 5.5).
5.7
Removing and Remounting the
Pump Module
Required tools:
Allen keys 3 mm, 5 mm, 8 mm, box wrench 10 mm, possibly pliers.
5.7.1
Removing the Pump Module
Drain the oil and remove the oil case (see Section 5.4).
Unscrew the hex. nuts (13/1).
Pull the entire pump module (13/2) forward off the tie rods (13/6).
When doing so, ensure that the individual pin-fitted parts are not loose-
ned. Further disassembly of the pump module should only be carried out
by a trained service engineer.
Remove the gasket (13/4).
Remove the coupling element (13/5).
After removing the protective shipping materials, handle the new pump
module with care.
Before installing a new pump module, remove the four tie rods from the
new module and insert them in the old one for protection during shipment.
Maintenance
Caution
Caution
Caution