CPX, CPXR, CPXN and CPXP USER INSTRUCTIONS ENGLISH 71569117 02-10
Page 27 of 44
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q) Install the shaft assembly into the bearing housing
[3200] until the gap is approximately 5 mm
(0.2 in.).
2100
6570.2
3240
6570.3
6580.1
3200
r) Fit the bearing carrier screws [6570.2] but do not
tighten.
s) Fit the labyrinth ring [4330] (if used) into the
bearing housing ensuring the drain hole faces the
bearing and is at the 6 o'clock position.
t) Press drive side liquid flinger [2540.1] and pump
side liquid flinger [2540.2] onto shaft where
applicable. These should be set 0.5 to 2 mm
(0.02 to 0.08 in.) (light contact for elastomer type)
from the bearing carrier and bearing housing
respectively.
u) The pump side flinger [2540.2] (this feature is
integral with some proprietary labyrinth seals)
should only be set in its final position after setting
the shaft axial position.
v) Temporarily fit the cover [1220]. The shaft [2100]
may now be positioned in relation to the cover
face, as shown below:
Bearing housing
Dia. X mm (in.)
Z mm (in.)
Frame 1
24 (0.945)
9 (0.354)
Frame 2
32 (1.260)
17 (0.669)
Frame 3
42 (1.654)
9 (0.354)
Frame 4
48 (1.890)
22 (0.866)
x) The pump side flinger [2540.2] may then be
moved towards the bearing housing and set with
its clearance.
0.5 to 2 mm
(0.02 to 0.08 in.)
6.10.2 Cover and seal assembly
a) Extreme cleanliness is required. The sealing
faces and shaft or sleeve surface must be free
from scratches or other damage.
b) Refer to section 6.11, Seal arrangements for seal
diagrams.
c) Carefully press the stationary seat into the cover
[1220], ensuring that the seating ring is not
deformed. Where an anti-rotation pin is fitted
ensure that correct engagement with the slot is
achieved.
d) Place any separate seal gland over the shaft.
e) Refer to manufacturer's instructions to position
the mechanical seal rotating elements. Tighten
any drive screws in the seal drive collar. For
precise compression most cartridge seals should
be set after complete pump assembly.
f) Fit the cover [1220] into the bearing housing
[3200] and tighten all fasteners.
6.10.3 Gland packing assembly
a) Assemble the gland packing [4130] into the cover
[1220] before fitting on to the shaft [2100].
b) Stagger the joints in the gland packing by 90
degrees to each other.
c) The lantern ring halves [4134], if required, should
be positioned mid-way along the packing.
d) Position the gland [4120] squarely against the last
ring and tighten the gland nuts finger-tight only.
Install into bearing housing assembly and fit the
two screws to hold the cover in place.
e) Check that the shaft rotates freely.
