Operation; Maintenance; Disassembly; Liquid End - ITT Goulds Pumps 3642 Serie Instrucciones De Instalación, Operación Y Mantenimiento

OPERATION

DO NOT OPERATE FRAME MOUNTED
WARNING
UNITS WITHOUT SAFETY GUARDS IN
PLACE OR SEVERE PERSONAL INJURY
MAY RESULT.
Hazardous machinery
can cause personal
injury or death.
SPLASHING OR IMMERSING OPEN
WARNING
DRIP PROOF MOTORS IN FLUID CAN
CAUSE FIRE, SHOCK, BURNS OR
DEATH.
Hazardous voltage
can shock, burn or
cause death.
OPERATION AT OR NEAR ZERO FLOW
WARNING
CAN CAUSE EXTREME HEAT,
PERSONAL INJURY OR PROPERTY
DAMAGE.
Extreme heat can
cause personal injury
or property damage.
NOTICE: NO NOT RUN PUMP DRY OR SEAL
DAMAGE WILL RESULT.
• After stabilizing the system at normal operating
conditions, check the piping. If necessary, adjust the
pipe supports.
• On frame-mounted units, coupling alignment may
have changed due to the temperature differential
between pump and motor. Recheck alignment
following procedures and hazard warnings in
"COUPLING ALIGNMENT" section of this manual.

MAINTENANCE

FAILURE TO DISCONNECT AND
WARNING
LOCKOUT ELECTRICAL POWER BEFORE
ATTEMPTING ANY MAINTENANCE
CAN CAUSE SHOCK, BURNS OR
DEATH.
Hazardous voltage
can shock, burn or
cause death.
FAILURE TO RELIEVE SYSTEM
CAUTION
PRESSURE AND DRAIN SYSTEM
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR
DEATH.
Hazardous pressure can
cause personal injury,
property damage or death.
Close-Coupled Units:
• Bearings are located in and are part of the motor. For
lubrication information, refer to motor manufacturer's
instructions.
Frame-Mounted Units:
• Pump bearing frames have greased for life bearings.
No lubrication is possible or necessary.
• Follow motor and coupling manufacturer's lubrication
instructions.
Seasonal Service:
• To REMOVE pump from service, remove drain plug
and drain all unprotected piping.
• To RETURN pump to service, replace drain plug using
Teflon™ tape or equivalent.
• Reconnect suction line if removed, examine union and
repair if necessary.
• Refer to "OPERATION" section of manual.

DISASSEMBLY

• Follow ALL warnings and instructions in the
"MAINTENANCE" section of this manual.
• Close-coupled units: Remove motor hold-down
bolts.
• Frame-mounted units: Remove coupling guard,
spacer, coupling and frame hold-down bolts.

Liquid End:

1. Remove casing bolts (370).
2. Remove back pull-out assembly from casing (100).
3. Remove casing gasket (351). Discard.
4. On close-coupled units, remove motor end plug or
cover to expose screwdriver slot or flats on end of
motor shaft.
5. While restraining shaft with an appropriate tool
(close-coupled units) or with a strap wrench (frame-
mounted units) remove impeller nut (304) by
turning COUNTERCLOCKWISE. Impeller nut may
need to be heated with torch to remove.
NOTICE: EXERCISE CAUTION WHEN HANDLING HOT
IMPELLER NUT.
6. While restraining shaft, remove impeller (101) by
turning COUNTERCLOCKWISE. Impeller may need
to be heated to remove.
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