MYERS ME45AC-11, Installation And Operation Manual, Page: 7 / 12

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MY1066 (02-10-20)
3. Remove four screws from the top of the motor and pull the
motor straight up to remove it from the seal plate.
4. Tap the stationary half of the seal out of the seal plate.
5. With a cardboard washer over the carbon face of the seal,
press it straight down into the seal cavity in the seal plate.
6. CAREFULLY replace the motor in the seal plate, sliding the
motor shaft through the seal without nicking or scratching
the seal surface.
7. Replace the 4 bolts in the motor.
8. Slide the rotating half of the seal onto the shaft, carbon
face first, being careful not to scratch, nick or chip the seal
face.
9. Proceed to Pump Reassembly instructions below.
PUMP REASSEMBLY
1. Apply Loctite to the impeller and shaft threads being
careful to not get any Loctite on the seal.
2. Screw the impeller onto the shaft (turn clock-wise). Hold
the shaft with a screwdriver while you tighten the impeller.
3. Reattach the motor leads to the cord leads.
4. Reassemble the motor cover, motor and seal plate, and
volute.
5. Fill the pump with about 1/2 gallon of clean dielectric oil
(Part No. U197-8A).
Be sure the oil level is 1/4” above the top of the motor. Allow
air space for expansion when the motor warms up.
6. Replace the oil fill plug. The pump is ready for service.
CHECK PUMP GROUND
1. Set the meter to Rx100.
2. Touch one lead to the grounding pin and the other lead to
one flat prong of the plug. Repeat for the other prong.
3. Reading should be infinity for both prongs. If the reading is
anything other than infinity, the stator must be removed,
dried and rechecked.
A reading of “0” indicates a dead short. Return the pump
to an authorized distributor, service center, or place of
purchase.
CHECK OPERATION
Replace the pump in the sump, connect the plumbing, and then
fill the sump to run the pump through one complete operational
cycle.
Failure to make this operational check can lead to flooding if the
pump requires further attention.
OPERATION & MAINTENANCE
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Figure 1 – Pump Disassembly