Sea Recovery Aqua Matic XL Series, Owner'S Manual, Page: 63 / 142

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.
Some Electric Motors supplied by Sea Recovery have permanently sealed and lubricated bearings. Others require
lubrication from time to time. If your Electric Motor has grease jerks at each end of the motor (over the front and
rear bearings), the bearings require lubrication every six months. Give three pumps of high temperature motor
bearing lubricant into each grease jerk. Use a Polyurea Base Grease such as Chevron SRI (Polyurea Base) or
Shell Dolium R (Polyurea Base).
DO NOT USE LITHIUM OR SILICONE BASE GREASE.
T-Connector Pressure Pick-Up
Replace kinked hoses or tubes. Disconnect each end of the hose/tube and blow air through it to ensure that it is
not blocked. Replace if damaged.
Pressure Transducers
Pressure Transducers are irreparable and cannot be calibrated. If inoperable, check connections at the transducer
and printed circuit board to ensure that there is no visible corrosion, or loose connections.
Plankton Filter Element (Cleaning)
1. Unscrew the bowl counter-clockwise.
2. Remove the Plankton Filter Elements from the bowl.
3. Remove the O-Ring from the top of the bowl.
4. Clean the mesh screen filter elements with a bristle brush and water spray.
5. Wipe the O-Ring with a damp cloth.
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Maintenance and Repair