7 Servicing/Maintenance
71 of 132
Amacan P
7. Cover the jacking threads with caps 903.51.
8. Perform a leak test on the motor. (
ð
Section 7.6.7.2, Page 78)
7.6.4 Installing the mechanical seal
Observe the following to ensure trouble-free operation of the mechanical seal:
▪
Only remove the protective wrapping of the contact faces immediately before
assembly takes place.
▪
The shaft surface must be absolutely clean and undamaged.
▪
Immediately before installing the mechanical seal, wet the contact faces with a
drop of oil.
▪
For easier installation of bellows-type mechanical seals, wet the inside diameter
of the bellows or the O-rings with soapy water (not oil).
▪
Cover any grooves in the shaft into which the O-rings could slide with suitable
means or assembly aids.
▪
To prevent any damage to the rubber bellows, place a thin foil (of approximately
0.1 to 0.3 mm thickness) around the free shaft stub.
Slide the rotating assembly over the foil into its installation position.
Then remove the foil.
7.6.4.1 Drive-end mechanical seal — pump sizes 700-... to 1200-...
350
914.02
818
80-1
571
X
932.03
550.03
433.01
L
243
Fig. 42:
Installing the drive-end mechanical seal, X = drilled hole for testing device
Table 24:
Key to the symbols and codes
Symbol
Description
L
243
Always secure screwed connections marked with this symbol with
Loctite 243
.
ü
The pump set has been positioned horizontally on suitable wooden supports and
is protected against rolling off.
1. Use an assembly sleeve of a suitable diameter to press the mating ring of
mechanical seal 433.01 together with the O-ring into the drilled seat of bearing
housing 350.
2. Carefully guide on the bellows part of mechanical seal 433.01 until it rests
against the mating ring.
3. Guide disc 550.03 and circlip 932.03 onto the shaft. Press the circlip in with an
assembly sleeve until it is axially fastened to the shaft groove.
4. Screw the testing device into the leakage drain hole (X) of bearing housing 350
and perform a leak test. (
ð
Section 7.6.4.1.1, Page 72)
