6.2.7 Wet end disassembly instructions
Follow these precautions before disassembly:
•
Remove the v-belt or coupling guard.
•
For pumps that are coupled to the motor, uninstall the coupling.
•
On a pump that is v-belt driven, the overhead mount or side-by-side slide base must be adjusted to
loosen the belts.
•
De-energize, lock-out, and tag-out the motor.
•
Check to ensure that the pedestal frame is securely fastened to the foundation, base plate, or work
surface, such as a workbench.
6.2.7.1 Remove the joint gaskets and flanges - Metal-Lined
1.
Remove the discharge joint flat gasket (351A).
2.
Remove the suction flat gasket (351B).
3.
Remove the two-piece suction and discharge flanges (195C, XHD sizes 150 and above only).
195C
195C
351A
351B
Figure 52: Removal of joint gaskets and flanges - metal lined
6.2.7.2 Remove the suction half casing - Metal-Lined
The following parts remain attached to the suction half casing when it is removed from the rest of the
pump wet end:
Model
Parts that are still attached
XHD
•
Suction side liner (562)
•
Adjustable seal ring (822)
•
Hardware Square head adjusting bolts (356F) and hex jam nuts (357A)
XHD Value Option
•
Suction side liner (562)
•
Hardware Hex head bolts/hex cap screws
1.
Support the suction half casing (100A) with a hoist hook through the lifting lug. Tension the hoist
properly so the subassembly will be fully supported upon disengagement.
2.
Remove the casing hex head nuts (600C) and flat washers (553) from the casing hex head bolts
(600A) and tapered alignment studs (600D).
3.
Leave the tapered alignment studs (600D) secured in place. The studs will provide guidance in re-
moval of the subassembly.
4.
Guide the suction half casing (100A, with attached components) free of tapered alignment studs.
6.2 Disassembly
XHD Installation, Operation, and Maintenance Manual
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