Sea Recovery SRC Aqua Matic 1400-2, Руководство пользователя, Страница: 101 / 223

Attention: The Booster Pump must rotate in the counter-clockwise direction. Rotating the Booster Pump in
the clockwise direction will cause extensive damage.
Attention: When switching from 3-Phase Generator power to 3-Phase Shore power, always check phases
prior to operating the System. Otherwise, reverse rotation (and extensive damage) may occur when the power
is out-of-phase.
Electric-Motor Problems (caused by Booster Pump or Electric Motor) and Solutions:
1. The Single Phase (115 or 230VAC) Electric Motor “hums,” pulls starting current (locked rotor) amperage, does
not rotate, and trips the supply power circuit breaker when attempting to operate the System. The Single Phase
Electric Motor is a capacitor-start motor. If the motor was repeatedly and rapidly started with low voltage or a
drop in voltage occurred while starting, the capacitor will short out. Without the aid of a working capacitor, the
motor will “hum,” pull starting current (locked rotor) amperage, not rotate, and trip the supply power circuit
breaker when attempting to operate the System.
a. Check wiring size and connections to, from, and in between the Power Supply and the Electric Motor. Correct
wire size or any loose wires.
b. Check the capacitor on the motor, and replace it if it has shorted out.
c. Measure motor voltage during attempt to start it. If voltage drops more than 10%, locate and correct the
reason.
d. Check the motor starter relay (contactor) for “burnt” contacts.
2. The 3-Phase (230/380/460 VAC) Electric Motor “hums,” pulls starting current (locked rotor) amperage, does
not rotate, and trips the supply power circuit breaker when attempting to operate the System. The 3-Phase
Electric Motor requires all three power lines (all three phases) to operate, otherwise it will revert to “single phase”
(resulting in extensive damage to the motor’s internal windings). Note that low voltage will also cause the same
symptom.
a. Same troubleshooting steps as that for the Single Phase (115 or 230VAC) Electric Motor, above.
3. The Electric Motor makes an unusual “grinding” sound when operated.
a. Check and replace the front and rear bearings, as necessary.
b. Check if the fan is rubbing against the fan guard.
Booster Pump
Replace ceramic seal approximately every 2000 hours, or at the sign of leakage.
Disassembly
Remove the four 3/8-16 bolts holding the volute to the motor bracket. To remove the impeller, remove the bearing
cap on the motor to expose the screwdriver slot on the motor shaft. Hold the motor shaft with a large screwdriver
and remove the impeller by grasping it and turning the impeller counter clockwise. Remove the seal. Two
screwdrivers wedged into the seal at 180° apart serve as tools to wedge the seal out. The ceramic seat is removed
by removing the end-bell gasket.
Reassembly
Clean the motor shaft and the bracket of any corrosion or salt deposits. Replace the end bell gasket and the tap
seat portion into the bracket cavity. Use a new gasket. Place the ceramic seat into the cavity over the shaft. Make
sure that the polished side is toward the end of the shaft. Tap into place evenly using a hollow piece of wood or
plastic tool. If a metal tool is used to tap into place, protect the seat with cardboard or a clean cloth. Lubricate the
shaft with water and soap or a light oil and slip the rotating portion of the seal over the shaft with the carbon element
toward the ceramic. Slide it down onto the shaft as far as possible. Apply blue Loctite to the motor shaft threads.
Hold the motor shaft and reinstall the impeller. Tighten the impeller by turning it clockwise until it is snug. Reinstall
the volute. Tighten the bolts evenly. Thoroughly prime the pump.
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Maintenance and Repair