KSB Amacan P 500-270 Installation & Operating Manual page 69

7 Servicing/Maintenance
7.6.4.1 Drive-end mechanical seal
932.01
433.02
550.05
Fig. 40: Installing the drive-end mechanical seal
Table 21: Symbols key
Symbol Description
Always secure screwed connections marked with this symbol with
L
243
Loctite 243 .
ü The pump set has been positioned horizontally on suitable wooden supports and
is protected against rolling off.
1. Use a suitable sleeve to press the mating ring of mechanical seal 433.02
including an O-ring into the indicated drilled seat of bearing housing 350.01.
2. Slide the bellows part of mechanical seal 433.02 onto the shaft until it rests
against the mating ring.
3. Slide disc 550.05 and circlip 932.01 onto the shaft. Press the circlip in with an
assembly sleeve until it is axially fastened in the shaft groove.
4. Screw the testing device into the leakage drain hole (X) of bearing housing
350.01 and perform a leak test. (ð Section 7.6.4.1.1, Page 69)
5. Attach the eye hook to the bail and pull upright motor unit 80-1 including rotor
818 with bearing and bearing housing 350.01. (ð Section 3.2.2, Page 13)
6. Place the pump set on the pump bowl and bellmouth. Fasten it with hexagon
socket head cap screws 914.02. Secure the screwed connection with a thread-
locking agent (Loctite 243).
7.6.4.1.1 Leak test when installing the mechanical seal
Observe the following values for leak testing:
▪ Test medium: compressed air
▪ Test pressure: 1 bar max.
▪ Test period: 5 minutes
1. The pressure must not drop during the test period.
If the pressure does drop, check the sealing elements and screwed connections.
Then perform another leak test.
2. If the test has been successful, remove the testing device. Do not close the
leakage drain hole to allow drainage of any water ingress.
Amacan P
X
818
L
350.01 914.02
243
80-1 571
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