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DISCHARGE PIPING
On long horizontal runs it is desirable to maintain as even a
grade as possible. Avoid high spots, such as loops, which
will collect air and throttle the system or lead to erratic
pumping.
Valves in Discharge Piping - A check valve gate valve
should be installed in the discharge. The check valve,
placed between the pump and the gate valve, protects the
pump from excessive pressure, and prevents liquid from
running back through the pump in case of power failure.
The gate valve is used when shutting the pump down.
GAUGES
Pressure Gauges - Properly sized pressure gauges
should be installed in both the suction and discharge
side of the pump. The gauges will enable the operator
to easily observe the operation of the pump, and also
determine if the pump is operating in conformance with
the performance curve. If cavitation, vapor binding or
other unstable operation should occur, widely fl uctuating
discharge pressure will be noted.
JACKETED SEAL CAVITY PIPING
The cooling fl uid must enter the lower pipe connection to
the cooling cavity and leave the upper pipe connection to
insure that the cooling cavity is always full of fl uid.
Cooling fl uid must be turned on when pump is running.
The cooling fl uid cavity must not be under pressure. The
fl uid leaving the cavity should fl ow to a drain. Cooling fl uid
should run for a brief period after shutdown to prevent
"Heat Soaking".
OPERATING
WARNING: Failure to connect the motor frame
to the power supply equipment grounding
conductor by using the grounding cord, green
screw or green wire provided may result in
serious electrical shock.
PRIMING
Before starting the pump it is necessary that both the
casing and suction pipe be completely fi lled with liquid.
This priming can be accomplished by any of the following
methods.
A. When the liquid supply level is above the center line of
the pump, it is primed by opening the suction and
discharge valves. The infl owing liquid will displace the
air and fi ll the suction line, pump casing, and discharge
line up to the level of supply.
B. Where the pump is operating with suction lift and the
suction line is equipped with a foot valve, the system is
fi lled with liquid by fi lling through the discharge piping
or priming plug if provided.
PRIOR TO STARTING
Before the pump is started initially, make the following
inspections:
• Check Rotation - Be sure that the pump operates in
the direction indicated by the arrow on the pump casing
or frame, as serious damage can result if the pump
is operated with incorrect rotation. Make sure the shaft
rotation is clockwise when looking at the motor end of
the pump.
• Check all connections to motor and starting device with
wiring diagram. Check voltage, phase and frequency on
motor nameplate with line circuit.
IMPORTANT ! - All pumps with 3 phase motors
MUST be installed with a magnetic starter
which provides 3 leg protection for motor.
Failure to use correct starter will void warranty.
STARTING
Follow the steps below in the order indicated to start pump:
• Open gate valve in discharge line wide open.
• Open gate valve in suction line wide open.
• Turn on power to pump motor.
If the pump does not prime properly, loses its prime during
start-up it should be shut-down and the condition corrected
before the procedure is repeated.
If the motor runs, but no water is pumped, be sure pump is
primed, that there are no air leaks in suction piping, that all
gate valves are open and all check valves operate.
IMPORTANT ! - DO NOT operate pump at
pressures above those shown for a given
horsepower in the performance and
selection tables, operating above maximum
recommended pressure will overload the motor
and void the warranty.
OPERATING CHECKS
After initial start-up:
• Check the pump and piping to assure there are no leaks.
• Check and record pressure gauge readings for future
reference.
• Check and record voltage, amperage per phase.
MAINTENANCE
LUBRICATION
No lubrication is required for the liquid end of any BURKS
Turbine pump. Motors are equipped with ball bearings
which are grease-packed and sealed at the factory. No
additional lubrication is required. Base-mounted pumps
have ball bearings in the Power Frame Assembly which
are grease-packed at the factory and have provisions for
re-lubrication as required. Use Chevron SR1 grease, or
equal. For continuous operation, lubricate annually. For
intermittent operation, lubricate every two years. DO NOT
over-lubricate.
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