English (GB)
9
Removing the bearings and shaft seals, drive end
1. Remove the key (11a).
2. Remove the four screws (114a) holding the bearing cover
(113c).
3. Remove the bearing cover (113c) and gasket (113e).
4. Remove the screws (114b).
5. Loosen the bearing housing (113) using expansion bolts.
6. Pull the bearing housing (113) off the shaft (51).
7. Pull the bearing (54) out of the bearing housing (113).
8. Remove the lip seal (113f). Use a punch, if necessary.
9. Remove the slinger (79).
10. Remove the screws (58a).
11. Remove the seal cover (58).
12. Remove the gasket (110a) or the O-ring (110).
13. Remove the stationary shaft seal part (105). Use a punch, if
necessary.
14. Remove the seal housing screws (114).
15. Loosen the seal housing (124) using expansion bolts.
16. Remove the seal housing (124).
17. Remove the O-ring (109, 109a).
18. Pull the spring, washer and rotary shaft seal part (105) off the
shaft (51).
Removing the upper pump housing
1. Loosen the screws (26c, 26d), and remove them.
2. Fit the screws in the dismounting holes, thereby loosening the
rest of the pump housing (6a).
3. Lift off the upper pump housing (6a). Use lifting straps on the
lifting brackets of the pump housing.
4. Remove the screws (26c) from the dismounting holes, and
then knock up the guide pins so that they are not damaged.
Removing the shaft, impeller and gasket
1. Lift the shaft (51), including the impeller (49) and wear rings
(45a, 45b or 45c), free of the lower pump housing (6b).
2. Remove the wear rings (45a, 45b or 45c).
3. Remove the snap ring (65) (only pump type LS 200-150-483).
4. Remove the gasket (72a) from the pump casing (6b), and
clean the packing face.
Removing the impeller
1. Loosen and remove the impeller nut (67a, 67b).
2. Loosen the set screws (116e), and remove the outer shaft
sleeve (116d) and inner shaft sleeve (116c) or the shaft sleeve
(116).
3. Remove the shaft seal O-ring (66).
4. Push the shaft until the key (11) is free of the impeller (49).
5. Pull the shaft (51) out of the impeller (49), and remove it.
4.3 Dismantling the pump, without sleeve
4.3.1 LS without sleeve, construction type 1
The position numbers in the following refer to section
without sleeve, construction type 1
on page 24.
Removing the motor
1. Remove the coupling guard.
2. Remove the screws and nuts from the coupling halves.
3. Carefully loosen and remove the spring using a screwdriver.
4. Remove the screws holding the motor on the base frame.
5. Lift off the motor.
6. Loosen the set screws in the coupling flange of the pump.
7. Pull the coupling flange off the pump shaft using a puller.
Removing the bearings and shaft seals, non-drive end
1. Remove the four screws (114a) holding the bearing cover
(113d).
2. Remove the bearing cover (113d) and gasket (113e).
3. Loosen the round nut (54e).
4. Remove the round nut (54e) and the washer (54c) from the
shaft non-drive end.
5. Remove the screws (114).
6. Pull the seal housing
(124) off the shaft (51) using a puller,
and then remove the gasket (109b).
7. Pull the spring, washer and rotary shaft seal part (105) off the
shaft (51).
8. Pull the bearing (54) out of the seal housing (124).
9. Remove the stationary shaft seal part (105). Use a punch, if
necessary.
Removing the bearings and shaft seals, drive end
1. Remove the key (11a).
2. Remove the four screws (114a) holding the bearing cover
(113c).
3. Remove the bearing cover (113c) and gasket (113e).
4. Remove the screws (114).
5. Pull the seal housing (124) off the shaft (51) using a puller,
and then remove the gasket (109b).
6. Pull the spring, washer and rotary shaft seal part (105) off the
shaft (51).
7. Pull the bearing (53) out of the seal housing (124).
8. Remove the stationary shaft seal part (105). Use a punch, if
necessary.
Removing the upper pump housing
1. Loosen the screws (26c), and remove them.
2. Loosen the screws (26d), and remove them (only pump type
LS 65-50-330).
3. Loosen the upper pump housing by means of a jacking screw
(inch threads).
4. Lift off the upper pump housing (6a).
Removing the shaft, impeller and gasket
1. Lift the shaft (51), including the impeller (49) and wear rings
(45b), free of the lower pump housing (6b).
2. Remove the wear rings (45b).
3. Remove the gasket (72a) from the pump housing (6b), and
clean the packing face.
Removing the impeller
1. Remove the impeller nut (67b).
2. Push the shaft until the key (11) is free of the impeller (49).
3. Pull the shaft (51) out of the impeller (49), and remove it.
Содержание LS 100-80-241
Страница 1: ...LS Service instructions GRUNDFOS INSTRUCTIONS ...
Страница 2: ...2 ...
Страница 22: ...English GB 22 9 Sectional drawings 9 1 LS with sleeve construction type 1 TM03 9952 4707 ...
Страница 29: ...English GB 29 10 2 3 Construction type 3 Fig 17 Construction type 3 LS 200 150 483 X5 TM03 9947 4317 ...
Страница 30: ...English GB 30 Fig 18 Construction type 3 LS 100 80 241 XE TM03 9951 4317 ...
Страница 34: ...English GB 34 Fig 25 Construction type 4 LS 300 200 489 LS 350 250 508 TM03 9942 4317 ...
Страница 44: ...44 ...
Страница 45: ...45 ...
Страница 46: ...46 ...