Maintenance
16
INOXPA S.A.U.
01.020.30.08EN · (0) 2021/04
8.6.1. Disassembly of the pump and single mechanical seal
1. Remove the screws, nuts and washers (51, 53 and 54A) and
disassembly the pump casing (01).
2. Check the condition of the O-ring (80) on the pump casing
and replace it if damaged.
3. Place an open-end wrench on the flat sides of the shaft (05)
to prevent it from rotating. For ESTAMPINOX EFI 3 pump
place a pin into the shaft hole (05).
4. Pull out the impeller (02) disassembling the screw (52A) and
washer (53). For the EFI-3, quit the blind nut (45) and
washer (35).
5. Remove the rotating part of the seal (08) sliding in front of
the shaft (05).
6. Remove the pump cover (03) from the lantern (04).
7. Manually remove the stationary part of the seal (08) which is
located in the pump cover (03).
8. Remove the splash ring (82).
9. Loosen the studs (55) from the shaft (05) and take them off
from the motor (93).
8.6.2. Assembly of the pump and single mechanical seal
1. Place the shaft (05) on the motor (93).
2. Fix the shaft (05) with the studs (55) to the motor (93)
leaving it to gauge the impeller (02) with the pump cover
(03).
3. Hold the pump cover (03) on the lantern (04) with the hand and gauge the assembly position according to
the distance A.
Pump model
A (mm)
EFI - 0 / 1
33
EFI - 2 / 3
35
0
1
.0
2
0
.3
2
.0
0
1
4
0
1
.0
2
0
.3
2
.0
0
1
0
0
1
.0
2
0
.3
2
.0
0
1
1
0
1
.0
2
0
.3
2
.0
0
1
4
0
1
.0
2
0
.3
2
.0
0
1
2
0
1
.0
2
0
.3
2
.0
0
2
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