32
Pump Motors
Level 2
A.O.Smith
PROTECTOR (THERMAL OVERLOAD)
Protector — Set ohmmeter to R x 1.
Resistance between protector terminals:
1 & 2 should be approximately 0 (Disc.).
2 & 3 should be approximately 0 (Heater).
Replace if either value exceeds 1 ohm.
NOTE: Motor cycling
on overload indicates
some other problem, not
just a defective over-
load.
1 & 2
PUMP DISASSEMBLY
Wrench flats on shaft have been provided to
facilitate impeller removal. Insert a 7/16” open
end wrench under governor assembly and hold
while unscrewing impeller. (NOTE: For easier
access, the capacitor can be removed from its
mounting bosses).
NOTE: If necessary to
remove motor from
pump, disassemble
pump in accordance
with pump manufactur-
er’s recommendation.
* Motors produced since
2000, have an improved
wrench access area
behind the overload.
*
