Grundfos LS 100-80-241, Инструкция по эксплуатации

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English (GB)
13
4.4.4 LS with sleeve, construction type 4
Fitting the impeller
1. Fit the shaft (51) in the impeller (49).
2. Centre the shaft in the impeller (49) by measuring from the
impeller hub to the shoulder on each side of the shaft (51).
3. Fit the inner shaft sleeve (116c) (not pump type LS
200-150-508 and LS 200-150-483).
4. Fit the O-ring (66) in the removed shaft sleeve (116d or 116).
5. Fit and tighten the impeller nut (67a, 67b).
6. Tighten the two set screws (116e).
Fitting the gaskets, impeller and shaft
1. Draw the outline of the old gasket (72a) on a new gasket
material (gasket thickness 0.8 mm), make holes for the
staybolts, and coarsely cut out the gasket.
2. Fit the guide screws in the lower pump housing (6b).
3. Fit the gasket (72a), and cut it out.
4. Fit the snap ring (65) (only pump type LS 200-150-483).
5. Fit the wear rings (45a, 45b or 45c) on the impeller (49), and
check that they can rotate freely.
6. Lift the shaft, impeller and wear rings home in the pump
housing. Make sure that the slits at the side of the pump
housing engage with the pins (24) in the wear rings (45c) (not
pump type LS 200-150-508 and LS 200-150-483).
7. Lift the shaft, impeller and wear rings home in the pump
housing. Make sure that the pins at the bottom of the pump
housing engage with the holes in the wear rings (only pump
type LS 200-150-508 and LS 200-150-483).
Fitting the upper pump housing
1. Clean the packing face of the upper pump housing (6a), and
fit the pump housing.
2. Knock the guide pins down into the lower pump housing (26b).
3. Remove the guide screws in the lower pump housing (6b).
4. Fit the screws (26c, 26d), and tighten them, but leave loose, in
the order shown in fig. 4.
Fig. 4
Tightening order in principle for screws pos. 26c
5. Tighten the screws (26c, 26d) to the correct torque. See
section
2.3.1 Tightening torques
. The tightening order is
shown in fig. 4.
6. Check that the shaft can rotate freely.
7. Remove excess gasket material.
Fitting the bearings and shaft seals
1. Clean the O-ring on the shaft seal rotary part (105). Then fit it
along with the washer and spring. Start at the non-drive end.
2. Fit the O-ring (109, 109a).
3. Fit the seal housing (124).
4. Fit the seal housing screws (114). Tighten to the correct
torque. See section
2.3.1 Tightening torques
.
5. Press the stationary shaft seal part (105) home in the seal
cover (58).
6. Fit the gasket (110a), or lubricate and fit the O-ring (110).
7. Fit and cross-tighten the screws (58a) to the correct torque.
See section
2.3.1 Tightening torques
.
8. Fit the slinger (79).
9. Press the lip seal (113f) home in the bearing housing (113).
10. Fit the bearing housing (113) and the screws (114b).
Cross-tighten to the correct torque. See section
2.3.1 Tightening torques
.
11. Fit the spacer ring (54c) (not pump type LS 350-250-498 and
LS 350-250-630).
12. Lubricate the bearing (54), and press it home in the bearing
housing (113). For lubricant, see section
Ball bearing grease
.
13. Fit the spacer ring (54c) (not pump type LS 350-250-498 and
LS 350-250-630).
14. Fit the bearing snap ring (54d).
15. Fit the gasket (113e), bearing cover (113d) and screws (114a).
Cross-tighten to the correct torque. See section
2.3.1 Tightening torques
.
16. Make sure to polish off any burrs on the shaft drive end.
17. Repeat steps 1 to 10 for the drive end.
18. Lubricate the bearing (53), and press it home in the bearing
housing (113). For lubricant, see section
Ball bearing grease
.
19. Fit the gasket (113e), bearing cover (113d) and screws (114a).
Cross-tighten to the correct torque. See section
2.3.1 Tightening torques
.
20. Check that the shaft can rotate freely.
21. Fit the key (11a).
T
M
04
18
65
12
0
8