Goulds Pumps 3498 - IOM - Manual (Page 32)

OPERATION
PRE-START CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PRIMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Filling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
STARTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
OPERATIONAL CHECKLIST . . . . . . . . . . . . . . . . . . . . . . 31
SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
FREEZING PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . 31
FIELD TESTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
VIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . 33
PRE-START CHECKS
!
When installing in a potentially explosive environment,
ensure that the motor is properly certified.
Before the initial start of the pump, make the following inspections:
1. Check alignment between pump and driver. See the
section on alignment for alignment requirements.
!
All equipment being installed must be properly
grounded to prevent unexpected static electric
discharge.
2. Check all connections to motor and starting device with
wiring diagram. Check voltage, phase, and frequency on
motor nameplate with line circuit.
3. Check suction and discharge piping and pressure gauges
for proper operation.
4. Turn rotating element by hand to assure that it rotates
freely.
!
Rotate shaft by hand to ensure it rotates smoothly
and there is no rubbing which could lead to excess
heat generation and sparks.
5. Check stuffing box adjustment, lubrication, and piping.
6. Check driver lubrication.
!
Bearings must be lubricated properly in order to
prevent excess heat generation, sparks, and
premature failure.
7. Assure that pump bearings are properly lubricated.
8. Assure that coupling is properly lubricated, if required.
9. Assure that pump is full of liquid and all valves are
properly set and operational, with the discharge valve and
the suction valve open. Purge all air from top of casing.
10. Check rotation. Be sure that the driver operates in the
direction indicated by the arrow on the pump casing as
serious damage can result if the pump is operated with
incorrect rotation. Check rotation each time the motor
leads have been disconnected.
!
Cooling systems such as those for bearing lubrication,
mechanical seal systems, etc, where provided, must be
operating properly to prevent excess heat generation,
sparks, and premature failure.
!
Check for magnetism on the pump shaft and degauss
the shaft if there is any detectable magnetism.
Magnetism will attract ferritic objects to the impeller,
seal and bearings which can result in excess heat
generation, sparks, and premature failure.
!
Leakage of process liquid may result in creating an
explosive atmosphere. Ensure the materials of the
pump casing, impeller, shaft, sleeves, gaskets, and
seals are compatible with the process liquid.
!
Leakage of process liquid may result in creating an
explosive atmosphere. Follow all pump and seal
assembly procedures.
!
A build-up of gases within the pump, sealing system
and/or process piping system may result in an explosive
environment within the pump or process piping system.
Ensure process piping system, pump, and sealing system
are properly vented prior to operation.
!
Sealing systems that are not self purging or self
venting, such as plan 23, require manual venting
prior to operations. Failure to do so will result in
excess heat generation and seal failure.
3498 IOM 12/04
29
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