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HI.This steps might be as well helpful.let me just clarify that you can't even manually twist the shafting.If the motor is working an yet it will not turn the shaft.Tha shafting bossing might as well been broken misallign inside..Better remove the cover by unscrewing it and then try to observe how the motor works.If it really does turn when ever it is plugg on to the source.Observe also misallign bosssing that connects the shafting and the motor's rotor.Thank you for choosing FIXYA.
The impeller is screwed on to the motor shaft; to remove it you need to hold the motor shaft at the fan end so that you can unscrew the impeller - normal right hand thread. Holding the shaft can sometimes be quite difficult so a good suggestion would be to remove the fan cowl along with the fan, this will enable you to secure the shaft with a small pipe wrench or similar. Once you have the impeller removed it will be possible to ascertain what steps need to be taken next - you may need a new shaft sleeve as well as a new mechanical seal assembly.
In order to replace the fan you will buy a 2 or three piece lexan fan kit containing the fan a spacer and shaft. You must remove the carpet head and then looking from the back of the machine you will find a series of philips screws on the outer edge of the fan housing facing towards the front, several of which may be partly covered by the motor housing. You will remove the forward facing screws to allow the housing to separate and reveal the fan. If you are lucky there will be a sideways hole through the impeller shaft allowing you to slip a nail through to help twist the saft to unscrew it while holding the fan . The shaft will turn off revealing a threaded motor shaft with spacers which the broken fan will slide off revealing a second spacer at the back . Be sure to replace these spacers in the same order when re-assembling the unit. Secure the shaft hand tight. Post back to advise if you need further help
It needs to be stripped completly down, if you are confident at doing this then here goes.
It has been a while for me so take your time and some of the steps may have to be completed slightly differently.
Isolate / unplug the machine from the mains
Remove the bag, handle and front roller assembly so you are left with a bare machine.
Remove the rear switch cover - 1 x screw.
remove the top aluminium cover 2 x screws at the back and 2 x screws at the front below the light.
You should now see the motor and tech drive.
Remove the tech drive, tech drive belt and rear wheels 4 x screws below the machine.
Remove the wiring to the motor noting the correct connections for putting back.
unscrew the motor 4 x screws inside (think) and two at the front below the fan aperature.
remove the motor and fan complete.
To remove the fan, note the hole through the fan shaft close to the belt position, this is for leverage when unscrewing the fan, hold the motor shaft, insert a small screw driver or punch through the shaft hole and unscrew to remove the fan.
Re-fit in reverse order.
My coupler was split in two, and I couldn't screw it off. I had to do the following:
1. Take the blender apart (mine had 2 screws on the bottom).
2. Remove the motor housing from the blender (mine was loose from removing the two screws earlier).
3. Remove the fan by removing the fan nut.
4. Take apart the motor housing. Mine had two machine screws with 1/4" hex heads holding a bracket that tied the two ends together. Once those two screws are removed, you can take the motor out of the housing. Be careful on the fan end of the motor, because it's got two spring loaded brushes that will come together once the motor is pulled through.
6. Once you have the motor out of the housing, you'll have something to grab onto so you'll be able to unscrew the broken coupler. I used a pair of channel locks and gently grasped the motor body, and then just used a regular pair of pliers to grab the broken coupler. It's regular thread (lefty lucy righty tighty), so twist accordingly.
Once you have the coupler off, just put everything back together. The hardest part is holding apart the spring loaded brushes while you push the fan end of the motor shaft back through the motor housing.
Took me about 20 minutes to do everything.
I removed the impeller on my DW761UQB. The instructions were molded into the plastic pump housing. This is how I DID MINE: Remove motor mount screws. Remove the chopper screw (screw only goes into impeller, not motor shaft). Remove chopper and rotate/remove strainer. Place socket or wrench on impeller tip and place another wrench on rear of motor's plastic fan. Unscrew fan from impeller shaft ( threads are LEFT handed, turn CW). Once fan is 'backed off' of the impeller, CAREFULLY pry the motor/fan from pump housing (impeller is attached to motor shaft via splines). Don't crack the delicate plastic pump housing. Mine was stuck, but separated with moderate force. Now remove the impeller/seals from the pump housing. This worked for MY above mentioned model, I don't know what other models it applies to. I am not a pro.
Wish you have posted the model number, but the fan on alot of the Hoovers are on the end of the motor, opposite the motor shaft. You will have to pull the motor out to see the fan, if broken, replace it by taking the 4 screws out and removing the fan housing, There will either ne a bolt to remove, or the fan will unscrew by turning clock wise. Sometimes they are tough to get off.