ITT Goulds Pumps XHD, Инструкция по установке, эксплуатации и обслуживанию

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Maintenance
XHD Installation, Operation, and Maintenance Manual 114
Wet end assembly instructions
WARNING: Before assembling the pump wet end to pedestal and power end, check to ensure
that the pedestal is securely fastened to the foundation, baseplate or work surface (such as a
workbench). Also ensure that the bearing frame is securely assembled to the pedestal. Failure
to do so could result in injury or part(s) damage.
NOTICE: When there is an expeller assembly supplied, the Wet End Assembly is not
applicable.
In large part, steps taken to disassemble the wet end are used in reverse to reassemble the
wet end to the pedestal and bearing frame, and are outlined here. In addition, an entire
assembled wet end can be replaced on the XHD model as outlined in the section
Complete wet
end connection - XHD (page 114).
NOTICE: If you are reassembling an XHD Value Option model, skip the next section describing
the complete wet end connection and move onto
Wet end assembly instructions (page 115).
You can also skip the wet end connection section if you have an XHD, have disassembled the
wet end piece-by-piece, and do not have a complete wet end to assemble to the pedestal and
bearing frame.
Complete wet end connection - XHD
The XHD model features a "quick connect" wet end option. If you have received a complete
replacement wet end from the factory or your distributor, installation of the entire wet end to the
pedestal and bearing frame can be performed as follows:
NOTICE:
The quick connect wet end assembly procedure cannot be used if the assembly does not have
the Suction seal ring option installed. This quick disconnect feature may also be unavailable
depending on the amount of wear on the suction seal ring and internal surfaces.
The quick connect wet end method uses the Adjustable Suction seal ring to clamp into the
impeller and hold it in place during the assembly.
1. Coat the shaft (122) protuberance, including the threads, with an anti-seizing compound.
2. Loosen but do not remove the hex head screws holding the knock-off ring (149) halves
together.
3. Position the knock-off ring onto the shaft (122). Make sure that the part is properly oriented.
The larger diameter step of the knock-off ring should face the bearing cartridge housing
(228).
4. Slide the knock-off ring towards the bearing cartridge housing until it is flush with the
inboard end cover (160). The knock-off ring fits over the inboard Inpro seal (332A).
5. Tighten the knock-off ring hex cap screws to secure.
6. Prepare the shaft sleeve (126) by coating the sleeve o-ring (412F) and impeller hub o-ring
(412A) with a lubricant and install into the inner diameter and impeller end o-ring grooves.
7. Slide the shaft sleeve with the impeller hub o-ring properly positioned (facing outward) onto
the shaft. Use care when positioning the sleeve on the shaft to avoid ID o-ring damage.
8. Continue sliding the sleeve until it is fully seated in the knock-off ring. Use a soft blow mallet
to gently tap the sleeve along the shaft if necessary.
9. Insert the tapered alignment studs (375B) into the rear of the gland half casing (100D)
using a metric stud driver.
10. Attach the hoist hook to the gland half casing (100D) lifting lug and tension to support the
wet end.
11. Lift the wet end into position against the pedestal (131). Guide the installed tapered
alignment studs through the pedestal holes on the sides of the bearing frame.