4
9. Use Never Seez
®
or other graphite compound on
threads before replacing grinding impeller.
10. Be sure cap screw in bottom of shaft is tight. Hold
impeller with a screwdriver between cutter bar and
teeth of shredding ring while tightening cap screw.
11. Be sure impeller turns freely by hand after
reassembly. Some drag will occur due to the seal,
but there should be no binding or tight spots when
turning the grinder impeller.
12. If impeller rubs or drags on shredding ring, loosen
bolts in shredding ring plate and tap with plastic
hammer to loosen; retighten screws. Be sure to pull
screw down evenly, applying pressure on all three
screws. DO NOT TIGHTEN ONE SCREW CLEAR
DOWN BEFORE ADJUSTING OTHER SCREWS.
13. ALWAYS use a rag on the impeller when turning
to prevent cutting hands on the sharp corners of
shredding ring.
TO REPLACE CAPACITORS ONLY
1. Remove oil fill plug near the top of motor housing
and pour oil out.
2. Loosen the cord nut on power cord until
cord is loose enough to push cord down into
motor housing.
3. Remove four bolts from motor housing and bump
housing with a plastic hammer to loosen. Lay
pump on its side.
4. Remove the housing carefully to be sure that
enough cord is pushed into the housing so as not
to create tension on cord.
5. Slide motor housing up far enough to expose the
capacitors and to be able to lay the housing down.
6. Disconnect wiring from capacitor and loosen
capacitor clamp and slide capacitor out. Replace
with new capacitor, tighten clamp and reconnect.
7. Check all wiring connectors to be sure they
are secure.
8. Be sure tetraseal gasket is in place.
9. Slide motor housing back onto pump while pulling
the cord out slowly. Assemble motor housing with
four bolts.
10. Reassemble cord nut. Be sure washers are seated
and cord is pulled up against the washers. Tighten
nut securely.
11. Put pump upright and refill motor with Myers
®
submersible pump oil. DO NOT OVERFILL
WITH OIL. Reassemble washer, gasket and nut
in motor housing. Retighten nut firmly, but do
not overtighten.
12. Be sure pump turns freely before connecting
power. Turn pump on side and turn impeller,
using screwdriver in slotted shaft. Plug pump
into receptacle to test operation. Pump must run
quietly and free of vibration.
WIRING DIAGRAM – AO SMITH
®
RUN
CAPACITOR
START
CAPACITOR
20 μF
370 V
324 μF - 389 μF
125 V
BROWN
BLACK
PHASE
MAIN
ORANGE
YELLOW
BLUE
RED
LINE
LINE
WHITE
PROTECTOR
SENSATA TECHNOLOGIES TYPE 15HM2412
2
3
5
1
4
6
WIRING DIAGRAM – MARATHON
®
START
CAPACITOR
RUN
CAPACITOR
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