Maintenance
INOXPA S.A.U.
·
01.400.30.09EN · (0) 2021/04
17
8.7.2. Assembly of the pump and the single mechanical seal
1. Fit the stationary part of the seal (08) on the suction casing (01) manually.
2. Slide the rotating part of the mechanical seal (08) in the shaft.
3. Mount the suction casing (01), securing it by the screws (52B) and washers (53A).
4. Check the A dimension is according with the next table. Is the dimension is not correct, loosen the studs
(55) and place the shaft according A dimension.
5. Mount the impeller (02) in the pump shaft (05). If there is a key (61), depending the model, enter it
previously.
6. Enter the impeller (02) and the washer (35) and fix all by the countersunk screw (50).
7. Mount the diffuser (16) with two O-rings (80A) located.
8. Finally, position the discharge cover (01A) fixing it with the clamping ring (15).
9. Rotate manually the pump shaft (05) to check that the impeller (02) turns soft and without rubbing with
suction casing (01) or diffuser (16).
When installing the new seal, use soapy water when fitting the different parts and gaskets to allow
them to slide better. Apply to the stationary as well as the rotating parts.
8.7.3. Motor change
1. Firstly, proceed according the steps previously
explained.
2. Remove the splash ring (82).
3. Loosen the allen studs (55) and remove the shaft
(05).
4. If the pump contains a shroud, remove the screws
(50B) that join both parts from the shroud (14) and
the screws with fix it to legs (07). After that remove
the shroud (14).
5. Remove the hexagonal screws (52) and washers
(53) and then extract the lantern (04) and the frontal
part of shroud.
6. Finally, remove the legs (07) taking out the screws
(52), nut (54) and washers (53,53A)
.
8.7.4. Mechanical seal with quench
Disassembly
1. Proceed according the chapter
8.6.1. Disassembly of the pump and single mechanical seal
2. At the point 9, remove carefully the suction casing (01) that has located the lip seal (88).
Assembly
1. Fit the stationary part of the seal (08) on the suction casing (01) manually.
2. Assembly the lip seal (88) in the suction casing (01).
Model
A
0,2 [mm]
A 50
3
A 80
6,67
A 150
3
A 200
5,9
0
1
.4
0
0
.3
2
.0
0
1
3
0
1
.4
0
0
.3
2
.0
0
1
3
ATTENTION