Service And Repair; Preparations For Disassembly Of Pump; Disassembly Of Pump - Carver Pump G2C Installation, Operation And Maintenance Instructions

G2C
Cantilevered Sump Pump
VII. SERVICE AND REPAIR.
Refer to Figures 2 or 3 to locate the pump parts by item
number and parts list. For motor service and repair refer
to the motor manual for the unit.
A. PREPARATIONS FOR DISASSEMBLY OF PUMP.
During disassembly, match mark parts so they can be
replaced in their original position. All parts should be
thoroughly cleaned or replaced with new, if necessary.
Sealing faces should be perfectly clean. Carver Pump
Company recommends that all O-rings and shims are
only used once.
Factory authorized parts must be used to safely
maintain your Carver Pump.
To avoid damage to O-rings, check to make
sure all parts are free of sharp edges or burrs.
Close discharge valves. The pump volute should be
cooled down to ambient temperature. The volute must
be empty and not under pressure.
After prolonged operation, components may not be
easily removed from shaft. In such instances, rust
solvent may be used and suitable extracting tools
applied wherever possible. Do NOT use force under any
circumstances. Refer to Table 3, Recommended
Equipment, for proper tooling during disassembly and
assembly. Refer to appropriate sectional drawing for
location of parts followed by an item number.
Carver Pump Company recommends that the following
parts be replaced with new:

O-rings / gaskets

Shims

Bearings

Grease seals
Prepare the pumping unit for disassembly using the
following list:
1. Read this entire section and study the sectional
view drawing,
disassembling the pump.
10
CAUTION
NOTE
Figures 4 or 5,
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.
2. Stop the pumping unit; refer to Section IV,
Paragraph E.
Properly decontaminate pump and piping
before
Applicable hazardous material procedures must
be followed.
3. Slowly close discharge valves.
4. Shut off and close all valves controlling flow of
liquid to and from pump. Disconnect piping and
gauge line as necessary.
5. Allow pump to drain. If necessary, flush pump to
remove corrosive or toxic pumpage.
6. Remove coupling guard. Match mark coupling
halves to assure proper coupling reassembly.
Disconnect coupling between pump and motor.
If non-spacer coupling is fitted, the driver will
have to be removed from the bearing housing.
B. DISASSEMBLY OF PUMP.
G2C, 1521 FRAME (Cantilevered). (Refer to Figure 4
and Table 7) Disassemble the pumping unit using the
following procedure:
1. Complete Section VII, Paragraph A before
continuing with disassembly.
Use a hoist with adequate lifting capacity.
Mark or
dismantling according to sequence.
before
2. Attach lifting strap to motor lifting eye (Refer to
Figure 1).
3. Remove bolts (603), freeing motor from bearing
housing (19). Hoist motor and motor coupling
half away from pump and rest on plywood,
DANGER
WARNING
disconnecting the pumping
CAUTION
NOTE
number each component
I-461
461-15.02.EN
unit.
while