KSB HPK-L, Инструкция по установке и эксплуатации

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7 Servicing/Maintenance
54 of 74
HPK-L
1136.8/15-EN
Tightening torques For reassembly, tighten all screws and bolts as specified in this manual.
7.5.2 Installing the bearings
Version with one mechanical seal and two angular contact ball bearings or version
with two mechanical seals in tandem arrangement and one deep groove ball
bearing or one four-point bearing
ü The individual parts have been placed in a clean and level assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü
Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
1. For versions with one mechanical seal only: Slide thrower 507.12 onto shaft 210.
2. Slide spacer sleeve 525.03 (for LP02 to LP04 only) and ring 500.32 onto shaft 210.
3. Press ball bearing 320.02 onto the shaft as far as it will go.
The standard pump set is fitted with two angular contact ball bearings. Version
with two mechanical seals are fitted with either a deep groove ball bearing or a
four-point bearing, depending on the pump size.
NOTE
Angular contact ball bearings must be installed in back-to-back arrangement.
Angular contact ball bearings installed in pairs must always be from the same
manufacturer.
NOTE
The bearings are packed with grease and must not be heated up for reassembly. If
heated up, they must be re-packed with grease!
4. Slide spacer sleeve 525.24 onto shaft 210 and use a C-spanner to tighten slotted
round nut 920.21 without lock washer 931.01. Then unscrew the slotted round
nut again.
5. Slide ring 500.32, bearing cover 360.02 and fan impeller 831 onto the shaft.
6. Apply a few spots of Molykote to the contact faces of the lock washer and the
locknut. Then slide on lock washer 931.01.
7. Tighten locknut 920.21 and bend over the lock washer.
Version with one mechanical seal, lip seal and one deep groove ball bearing or one
four-point bearing
ü The individual parts have been placed in a clean and level assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü
Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
NOTE
The bearings are packed with grease and must not be heated up for reassembly. If
heated up, they must be re-packed with grease!
1. Slide spacer sleeve 525.03 and ring 500.32 onto shaft 210.
2. Insert O-ring 412.03 in spacer sleeve 525.03.
3. Press ball bearing 320.02/321.02 onto the shaft as far as it will go.
4. Slide spacer sleeve 525.24 onto shaft 210 and use a C-spanner to tighten slotted
round nut 920.21 without lock washer 931.01. Then unscrew the slotted round
nut again.
5. Slide ring 500.32, bearing cover 360.02 and fan impeller 831 onto the shaft.