KSB HPK Series User Manual

7 Servicing/Maintenance
58 of 80
HPK
1121.8/06-EN
7.4.5 Removing the impeller
ü The notes and steps stated in (ðSection7.4.1,Page56) to
(ðSection7.4.4,Page57) have been observed/carried out.
ü The back pull-out unit is kept in a clean and level assembly area.
1. Undo impeller nut 922 (right-hand thread).
2. Remove impeller 230 with an impeller removal tool.
3. Place impeller 230 on a clean and level surface.
4. Remove keys 940.01 from shaft 210.
5. Remove and dispose of joint rings 411.31/411.32.
7.4.6 Removing the shaft seal
7.4.6.1 Removing the mechanical seal
ü The notes and steps stated in (ðSection7.4.1,Page56) to
(ðSection7.4.5,Page58) have been observed/carried out.
ü The back pull-out unit is kept in a clean and level assembly area.
1. Undo hexagon nuts 920.02 and slide back seal cover 471.01 (if fitted) until it
rests against thrower 507.01.
2. Remove casing cover 161 with O-ring 412.01.
3. Remove and dispose of O-ring 412.01.
4. Pull complete mechanical seal 433 with shaft protecting sleeve 524.01, seal cover
471 and thrower 507.01 off shaft 210.
7.4.6.2 Dismantling the gland packing
ü The notes and steps stated in (ðSection7.4.1,Page56) to
(ðSection7.4.5,Page58) have been observed/carried out.
ü The back pull-out unit is kept in a clean and level assembly area.
1. Unscrew hexagon nuts 920.02 at gland follower 452 and remove the gland
follower.
2. Remove stuffing box ring 454.01 and drip plate 463.01.
3. Remove casing cover 161 with O-ring 412.01 and gland packing 461.01.
4. Remove packing rings 461.01 and lantern ring 458.01, if any, from the packing
chamber.
5. Pull off guard 680.
6. Pull shaft protecting sleeve 524.01 and thrower 507.01 off shaft 210.
7.4.7 Dismantling the bearings
ü The notes and steps stated in (ðSection7.4.1,Page56) to
(ðSection7.4.6,Page58) have been observed/carried out.
ü The bearing bracket has been placed in a clean and level assembly area.
1. Unscrew hexagon nuts 920.04 at the flange of bearing bracket lantern 344.
2. Remove bearing bracket lantern 344.
3. Unscrew the hexagon socket head cap screw in the coupling hub.
4. Pull the coupling half off the pump shaft with a puller.
5. Remove key 940.02 and thrower 507.02.
6. Undo screws 914.02 and remove drive-end bearing cover 360.02 and joint ring
400.02.
7. Undo screws 914.01 and remove pump-end bearing cover 360.01 and joint ring
400.01.

KSB HPK Series Specifications

General

Brand	KSB
Model	HPK Series
Category	Water Pump
Language	English