7 Servicing/Maintenance
53 of 76
CTN / CTN-H
7.5.5.2 Fitting the gland packing
Always use pre-compressed packing rings.
ü The notes and steps stated in (ðSection7.5.1,Page48) to
(ðSection7.5.4,Page51) have been observed/carried out.
ü The assembled bearing as well as the individual parts are kept in a clean and
level assembly area.
ü All disassembled 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ü Any damaged or worn parts have been replaced by original spare parts.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. Fasten stuffing box housing 451.02 with joint ring 411.47 on soleplate 893.02.
2. If applicable, fasten shaft protecting sleeve 524.02 to the shaft with grub screw
904.14.
3. If applicable, check the O-ring.
4. Insert the first packing ring in the stuffing box housing 451.02 so that the cut
edge is horizontal.
5. Insert the second packing ring with the cut edge displaced by 90°.
6. Insert lantern ring 458.02.
The joint face must be offset from the cut edge of the packing ring.
Insert other packing rings in the same way.
7. Insert stuffing box ring 454.02.
8. Fit gland follower 452 and lightly fasten it by hand with the two hexagon nuts
920.09; watch discs 550.02.
CAUTION
Over-tightened gland packing
Damage to the gland packing
▷ Gently tighten the gland packing.
NOTE
The gland packing has no contact with the fluid handled and only seals against
splashes and low gas pressure.
Fig.8: Dimensions of the packing chamber/Number of packing rings; 1 = Design
without shaft protecting sleeve, 2 = Design with shaft protecting sleeve
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