Goulds Pumps XHD - IOM - Manual (Page 94)

Maintenance
• There are also grease fitting plugs (319H) and grease relief plugs (319Y) installed into the
bearing cartridge housing (228) used for purging and regreasing the grease lubricated
XHD XL power end.
• There will be no sight glass (319) or opposite sight glass (408N) on the grease lubricated
power end
Assemble the power end - XHD, oil lubrication, lip seals
• The XHD oil lubricated power end uses double lip seals as bearing isolators. Instead of
pipe plugs, there will be grease fitting plugs in the bearing cartridge end covers for the
addition of grease as necessary to maintain the double lip seal contaminant barrier.
• The double lip seals have the same fits as the labyrinth seal isolators used on the XHD
power end. There is no difference in the end covers between these or any of the power
ends, regardless of the type of lubrication or model.
Assemble the power end - XHD Value Option, grease lubrication, lip seals
• The XHD grease lubricated power end also uses double lip seals as bearing isolators. The
same bearing shields employed on the XHD grease lubricated power end are used as well
to properly maintain grease in the bearings.
• Because of the need to provide grease to both the double lip seal bearing isolators and the
bearings themselves, there are grease fitting plugs (319H) installed in both the bearing
cartridge housing (228) and the inboard and outboard bearing end covers (109 and 119).
There are also grease relief plugs (319Y) installed in the bottom of the bearing cartridge
housing (228) for purging and regreasing of the bearings.
• There is no sight glass (319) or opposite plug (408N) to install on the grease lubricated
power end.
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 92).
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 93).
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:
92 XHD Installation, Operation, and Maintenance Manual