Goulds Pumps 3408A - IOM - Manual (Page 27)

OPERATION
PRE-START CHECKS
Before initial start of the pump, make the following
inspections:
1. Check alignment between pump and motor.
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.
5. Check driver lubrication.
6. Assure that pump bearings are properly lubricated.
7. Assure that coupling is properly lubricated, if required.
8. Assure that pump is full of liquid and that all valves
are properly set and operational; the discharge valve
must close, and the suction valve must be open. See the
section entitled. Priming.
9. Check rotation. Be sure that the drive 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.
s
! WARNING
Rotating Components Hazard
Do not operate pump without all guards in place.
Failure to follow these instructions could result in seri-
ous personal injury or death, or property damage.
$
! CAUTION
Seal Damage Hazard
Do not run pump dry. Seal damage may occur.
Failure to follow these instructions could result in
property damage and/or moderate personal injury.
NOTE: Pump may have been doweled to base at factory.
PRIMING
If the pump is installed with a positive head on the suction,
it can be primed by opening the suction and vent valve and
allowing the liquid to enter the casing.
If the pump is installed with a suction lift, priming must be
done by other methods such as foot valves, ejectors, or by
manually filling the casing and suction line.
s
! WARNING
Rotating Components Hazard
Do not operate pump without all guards in place.
Failure to follow these instructions could result in seri-
ous personal injury or death, or property damage.
STARTING
1. Close drain valves and valve in discharge line.
2. Open fully all valves in the suction line.
3. Prime the pump.
NOTE: If the pump does not prime properly, or loses
prime during start-up, it should be shutdown and the
condition corrected before the procedure is repeated.
4. When the pump is operating at full speed, open the
discharge valve slowly. This should be done promptly
after start-up to prevent damage to pump by operating
at zero flow.
OPERATING CHECKS
1. Check the pump and piping to assure that there are no
leaks.
2. Check and record pressure gauge readings for future
reference.
3. Check and record voltage, amperage per phase, and
kW if an indicating wattmeter is available.
4. Check bearings for lubrication and temperature.
Normal temperature is 180° maximum.
5. Make all pump output adjustments with the discharge
line.
$
! CAUTION
Cavitation Damage Hazard
Do not throttle the suction line to adjust the pump
output.
Failure to follow these instructions could result in
property damage and/or moderate personal injury.
3408A IOM 6/08
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