MikeP
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- Apr 12, 2005
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- Hatteras Model
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You have to remove the waste (output) hose from the housing to be able to remove the stator housing because you have to "unscrew" the waste rotor to remove the housing/be able to remove/replace the stator. You probably don't have sufficient play/excess waste hose to be able to remove the hose without removing, or at least unbolting/shifting the pump itself. You probably have sufficient hose slack to remove the intake water stator housing without removing the hose from the housing.
Here are the procedures from RAZ to remove the waste rotor:
"Procedure: Locking Pump For Rotor Removal on 24 and 32 Volt pumps
(Tools: 1/8" Pocket Screwdriver, normal wrenches)
When pump nose is removed and you are ready to unscrew the rotor…
Remove one of two short ¼-20 hex bolts that secure solenoid to pump case
Insert the small screwdriver into the threaded hole to contact the motor armature
Apply moderate pressure to lock armature while unscrewing rotor. This contact is harmless to the motor armature.
Note that on toilet pumps it may not be necessary to lock motor while reinstalling the rotor"
Their instructions to just "unscrew" the rotor are a bit optimistic...sometimes you have to whack it with a hammer to break it loose but usually you can put a decent size Crescent wrench on the "T" of the rotor that will be visible and unscrew it with the armature locked down. You should carefully examine the rotors when you are doing this work. If they are pitted or otherwise damaged, they will quickly damage the new stator. The rotors are pretty pricy... Raz has all the parts necessary and good customer support if you run into an issue.
Before you start working on the pump, do several head flushes with some clorox poured into the toilet water and then wait a few minutes before beginning the work. This will eliminate most, if not all of the objectionable odor involved in this sort of work.
Here are the procedures from RAZ to remove the waste rotor:
"Procedure: Locking Pump For Rotor Removal on 24 and 32 Volt pumps
(Tools: 1/8" Pocket Screwdriver, normal wrenches)
When pump nose is removed and you are ready to unscrew the rotor…
Remove one of two short ¼-20 hex bolts that secure solenoid to pump case
Insert the small screwdriver into the threaded hole to contact the motor armature
Apply moderate pressure to lock armature while unscrewing rotor. This contact is harmless to the motor armature.
Note that on toilet pumps it may not be necessary to lock motor while reinstalling the rotor"
Their instructions to just "unscrew" the rotor are a bit optimistic...sometimes you have to whack it with a hammer to break it loose but usually you can put a decent size Crescent wrench on the "T" of the rotor that will be visible and unscrew it with the armature locked down. You should carefully examine the rotors when you are doing this work. If they are pitted or otherwise damaged, they will quickly damage the new stator. The rotors are pretty pricy... Raz has all the parts necessary and good customer support if you run into an issue.
Before you start working on the pump, do several head flushes with some clorox poured into the toilet water and then wait a few minutes before beginning the work. This will eliminate most, if not all of the objectionable odor involved in this sort of work.
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