7 Servicing/Maintenance
57 of 72
HPK
7.5.3.2 Packing the gland
a)
b)
l
d
a
UG1269690
d
i
d
a
UG1269740
d
i
l
Fig. 15:
Gland packing chamber a) uncooled and b) cooled, hot water
Stuffing box housing, uncooled
Table 24:
Gland packing chamber - uncooled variant
Bearing
bracket
Gland packing chamber
Packing
cross-section
Packing rings
Ø d
i
Ø d
a
l
P08s
105
130
98
12,5 x 12,5
6 rings and
1 lantern
ring
P10as
120
152
130
16 x 16
P12s
140
172
130
16 x 16
Stuffing box housing, cooled,
hot water variant
Table 25:
Gland packing chamber - cooled variant, hot water
Bearing
bracket
Gland packing chamber
Packing
cross-section
Packing rings
Ø d
i
Ø d
a
l
P08s
105
130
78
12,5 x 12,5
5
1
/
2
rings
P10as
120
152
105
16 x 16
P12s
140
172
105
16 x 16
Pure graphite packings see supplementary operating instructions.
Always use pre-compressed packing rings.
ü
The notes and steps stated in
(
ð
Section 7.5.1, Page 54)
to
(
ð
Section 7.5.2, Page 55)
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Any damaged or worn parts have been replaced by original spare parts.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 pre-assembled casing cover 161 with stud 902.15 and hexagon nut 920.15
to bearing bracket lantern 344.
2.
Clamp stuffing box housing 451.01 into a vice.
Fit neck bush 456.01, if any, with socket head cap screw 914.04.
3.
Insert the first packing ring, ensuring that its cut edge is in horizontal position.
4.
Hold the packing ring in place and slide shaft protecting sleeve 524 (chamfered
side first) into the gland packing chamber from the pump end.
5.
Slightly expand the inside diameter of the packing ring by moving the shaft
protecting sleeve back and forth. Then pull out shaft protecting sleeve 524.
Insert lantern ring 458, if any (see drawing above).
Insert each subsequent packing ring separately with its joint offset by approx.
90° in relation to the previous one. Repeat the expansion procedure.
After inserting the last packing ring, shaft protecting sleeve 524 remains in the
packing chamber.
6.
Insert stuffing box ring 454.01 with the drilled hole down.
7.
Fit gland follower 452 and lightly fasten it by hand with the two hexagon nuts
920.02; watch discs 550.01.
Summary of Contents for HPK
Page 71: ......
