Pump is Noisy
1. No axial clearance between impeller and volute
2. No axial clearance between cutter ring and axial cutter
3. No diametrical clearance between radial cutter and cutter ring
It is recommended that the pump and system be inspected at least annually to assure proper and efficient operation.
Pump Motor Data
The following information should be completed at start up. It can also be used to locate trouble after unit is in
service.
1. Never lift or carry the pump by using the power cord as a handle.
2. Inspect the equipment visually for any damage.
3. Check the nameplate to be sure of information.
4. Check the voltage and phase rating of the motor against the proposed power source.
5. Perform continuity and insulation tests with an ohmmeter according to the following steps:
a. Set selector knob on R x 1.
b. Clip leads together and adjust zero ohms knob until the needle is over the 0 (zero). Always “zero” the
meter before every use and every time the selector switch is changed.
c. Unclip leads and clip to wires to be tested.
d. Attach ohmmeter leads to motor leads per chart below, and compare readings.
e. A reading more than three times shown indicates a possible burned (open) winding or a loose
connection.
f. A considerably lower reading than shown indicates a possible shorted (burned together) winding.
g. Set selector knob on R x 100K.
h. Attach one ohmmeter lead to one motor lead.
i. Attach the other lead to the metal motor enclosure or ground wire connection.
j. Proper resistance will be greater than 1 on the R x 100k scale.
k. If possible, give the unit a short running test to determine if it is operating properly and there is no
hidden damage.
The Liquidator pump uses a dual rated 208-230 volt motor and may be used on 208 volt systems. Voltage should
be within 10% of motor rating and not less than 198 volts for 208 systems.
NOTE: Always protect for possible electric shock with rubber gloves and rubber soled shoes. Make the
tests in a dry location, being certain motor is grounded to avoid serious electrical shock.
To Next Page
Loading...
