I-120
GH Pump 120 – 16.02.EN
19
assembly. Refer to appropriate sectional drawing for
location of parts followed by an item number.
Prepare the pumping unit for disassembly using the
following list:
1. Read this entire section and study the
applicable sectional view drawing and parts list
before disassembling the pump.
2. Stop the pumping unit; refer to Section VIII,
Paragraph E.
DANGER
Before attempting to disassemble the pump,
the electrical power supply to the driver must
be locked and tagged in the “OFF” position to
prevent injury or death to personnel servicing
the pumping unit.
3. Remove terminal box cover. Disconnect motor
leads. Reconnect terminal box cover.
4. Remove splashguard (131A) from bearing
frame (*19) or intermediate (*71).
NOTE
Refer to cartridge seal (90*), refer to vendor
instructions for proper mechanical seal removal
procedure.
5. For cartridge mechanical seals (90*), reinstall
seal clip.
6. Close suction and/or discharge valves. Shut off
and close all valves controlling flow of liquid to
and from pump. The pump should be cooled
down to ambient temperature. The casing must
be empty and not under pressure.
DANGER
When pump is handling hazardous fluid,
extreme care must be taken to ensure safety of
personnel when attempting to drain pump and
piping before disconnecting the pumping unit.
Suitable protection devices should be used
and/or protective clothing should be worn.
Applicable hazardous material procedures must
be followed.
7. Drain casing (1) by removing casing plug (422
or 423) to remove any remaining fluid. If
necessary, flush pump to remove corrosive or
toxic pumpage. Collect and dispose of corrosive
or toxic material appropriately. Reinstall plug in
casing when fluid is completely drained.
DANGER
Be sure to adequately support the piping prior
to disconnecting the pumping unit. Failure to
adequately support the piping could result in
serious injury or death to personnel and/or
damage to the pumping unit.
8. Disconnect piping, gauge lines, and auxiliary
connections, as necessary.
B. DISASSEMBLY OF PUMP. The instructions that
follow are an aid for properly trained personnel to
service your Carver Pump. Refer to Figures 9 and 10 to
locate the pump parts by item number and parts list
Table 9. If a specific sectional assembly drawing exists
for a particular pumping unit then that drawing should be
referred to for service work. Read this entire section
before disassembling the pump.
NOTE
Refer to Section II for Safety precautions before
disassembling pump.
Variations do exist between configurations, not
all parts described in the text may be on your
configuration. Review what variations your
pumping unit has before starting. Parts marked
with * are options or vary by pump.
After completion of disassembly, all parts should be
thoroughly cleaned or replaced by new ones if
necessary. All gaskets and sealing faces should be
perfectly clean. When cutting new gaskets, make sure
they are exactly the same thickness as the old ones
unless noted.
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