Munsch NPC Series - Disassembling the Bearing Bracket; Disassembling the Pump Shaft; Fig. 23 Disassembling the Pump Shaft (no Lifetime Lubrication)

Maintenance
7.3.8 Disassembling the bearing bracket
✔ Intermediate lantern 146 disassembled.
914.3
360
421.2
412.12
937
360.4
421.1
330
636.1
636.2
901.3183
Fig. 22 Disassembling the bearing bracket (grease
lubrication, L16A, L18B, L20A)
1. To dismount support foot 183: Loosen hexagon head bolts
901.3.
2. Unscrew grease nipples 636.1 and 636.2 if applicable.
3. Loosen countersunk screws 937 and remove bearing cover
360.4.
4. Unscrew socket head cap screws 914.3 and extract bear-
ing cover 360.
5. Remove radial shaft seal ring 421.2 and O -ring 412.12 from
bearing cover 360.
6. Remove radial shaft seal rings 421.1 from bearing bracket
330.
7.3.9 Disassembling the pump shaft
With roller bearings without lifetime lubrication
322
932.1
923
321
940.2
211
940.1
932.1
(322)
Fig. 23 Disassembling the pump shaft (no
lifetime lubrication)
1. Press out pump shaft 211 with radial ball bearing 321 from
bearing bracket 330 towards the motor end.
2. Remove bearing nut 923.
3. Extract radial ball bearing 32 1 and inner ball race (322) of
radial roller bearing 322 from pump shaft 211.
4. Remove circlip 932.1.
5. Press out radial roller bearing 322 from bearing bracket 330
and remove second circlip 932.1.
With lifetime-lubricated roller bearings
932.1
923
321
321.6
940.2
211
940.1
Fig. 24 Disassembling the pump shaft (with
lifetime lubrication)
1. Remove circlip 932.1.
2. Press out pump shaft 211 with radial ball bearings 321 and
321.6 from be aring bracket 330.
3. Remove bearing nut 923.
4. Extract radial ball bearings 321 and 321.6 from pump shaft
211.
With labyrinth rings
(→ Additional instructions).
EN – 02 BA-2005.07 NPC series 29