OPERATION
FLOODED SUCTION SYSTEMS
1.
Fully open the suction and discharge valves.
2.
If a cooling collar is used, turn on the cooling water.
3.
Start the pump and verify liquid is flowing. If there is no liquid
flow, refer to the “Troubleshooting” section of these instruc-
tions.
4.
Adjust the flow rate and pressure by regulating the discharge
valve.
CAUTION:
Never attempt to adjust the liquid flow with the suc-
tion valve. Limiting the suction will result in damage to pump
components.
SPECIAL PIPING SITUATIONS
Suction Lift
1.
Install a priming chamber on the feed side of the pump or
appropriate piping on the discharge for priming the pump.
2.
Install a foot valve on the bottom of the suction piping to
maintain a prime to the pump.
CAUTION:
Suction prime must be maintained at all times.
Running the pump dry will cause damage to pump compo-
nents. To protect the pump if prime is lost, use a pressure
switch on the discharge, a vacuum switch on the suction, or a
motor minder to monitor motor current draw.
PUMPING LIQUIDS WHICH MAY SOLIDIFY OR CRYSTALLIZE
Add a flush system to the pump’s piping to prevent accumulation
of material inside the pump. Install water inlet and outlet valves as
shown in Figure 1. Refer to the “Operation” section of these in-
structions for the flush procedure.
ELECTRICAL CONNECTIONS
1.
Install the motor according to NEC requirements and local
electrical codes. Motor should have an overload protection
circuit.
2.
Wire the motor for clockwise rotation when facing the fan end
of the motor.
3.
To verify correct rotation of the motor:
a. Install the pump into the system.
b. Fully open the suction and discharge valves.
c. Allow fluid to flow into the pump. Do not allow the pump
to run dry.
d. Jog the motor (allow it to run for only one to two seconds)
and observe the rotation of the motor fan. Refer to the
directional arrow on the pump if needed.
NOTE:
A pump running backward will run but at a greatly
reduced flow and pressure.
SUCTION LIFT SYSTEMS
1.
Fully open suction and discharge valves.
2.
If a cooling collar is used, turn on the cooling water.
3.
Prime the pump by filling the priming chamber. Allow time for
any trapped air in the suction piping to escape.
4.
Start the pump. Adjust the flow rate and pressure by regulat-
ing the discharge valve.
CAUTION:
Never attempt to adjust the liquid flow with the
suction valve. Limiting the suction will result in damage to
pump components.
FLUSH SYSTEMS
1.
Fully close the suction and discharge valves.
2.
Connect the water supply to the water inlet valve and connect
a drain hose to water outlet valve.
3.
Turn on the water supply and open the inlet and outlet valves.
Flush the system until the pump has been cleared of any material
build-up (approximately 5 minutes).
4.
Close the inlet and outlet valves and turn off water supply.
SEALS
SEAL REMOVAL AND INSPECTION
1.
Disconnect the piping and electrical power from the pump.
2.
Disassemble the pump from the motor adapter.
a. Remove the six hex-head cap screws from the impeller
housing. The impeller housing will loosen if gently tapped at
the discharge outlet.
b. Remove the protective shroud from the motor adapter.
c. While preventing the motor shaft from moving (insert a screw-
driver into the motor’s fan), unscrew the impeller cap with o-
ring and socket head bolt (Items #4,16 and 13) in a counter-
clockwise rotation. Use large flathead screw driver and 5/16"
hex key. Remove the impeller, seal, cooling collar (if appli-
cable) and housing cover as one assembly from the motor shaft.
Note:
For pumps using 90, 100/112 motor adapters, leave the
shaft adapter secured to the motor shaft.
3.
Remove the seal for inspection.
a. Lubricate the impeller’s shaft with a rubber lubricant emul-
sion or soapy water to allow the seal to slide easier.
Note:
Never use a petroleum product for lubrication.
Doing so will effect the seal elastomer’s performance
after reassembly.
b. If no cooling collar is present, carefully remove the retaining
ring that holds the rear of the seal. If equipped with a cool
ing collar, carefully slide the cooling collar off of the impeller’s
shaft.
•
With single bellows or multi-spring seals, a retain-
ing ring holds the seal in place. Carefully remove
the retaining ring. Loosen the four (4) set screw on
the multi-spring seal.
•
With double seals, the cooling collar holds the seal
in place.
CAUTION:
The seal’s spring is compressed and under
pressure. Use care when removing.
c. Remove the seal’s spring. Grasp the rotating head of the
seal by hand and twist to remove from the impeller’s shaft.
d. Remove the housing cover from the impeller.
e. Press the ceramic stationary seat portion of the seal out of
the housing cover.
3
Figure 1
Discharge Valve
Water Inlet
Valve
Suction
Valve
Water
Outlet
Valve
