Ecoflam Minor 4 electric motor bearing

[PPM]

Hi - happy 2019 & I know this boiler is old - but so am I!

Problem
Ecoflam Minor 4 electric motor bearing fan side - noisy. I think that the bearings are 6206-2RS and 6206-2Z. Does anyone know if I am right?
Questions
A) Which is the bearing for the fan end?
B) How difficult is to change the bearings?
b (i) - Any special equipment needed pullers, press & the like?

Any advice appreciated.

 

[MikeJhn]

Can't advise on the bearings, but I use a suitably sized socket to drive out the bearings, and an engineering vice with again a suitably sized socket to the outside diameter of the bearing to carefully press them back in, if there is too much pressure when turning the vice handle stop and reposition the bearing its probably going in a bit one sided, putting too much pressure on the motor case is not a good idea.

 

[PPM]

Many thanks for the advice on using a socket and a vice - good idea!

 

[PPM]

It turned out that the noise was because of a buildup of "crud" between the impeller fan housing and the motor body with some ingress onto the motor shaft. Clean out, the crud, using a thin rope and sawing that back an forth. Also, was able to insert the back of a hacksaw blade into the gap between the shaft and the impeller, so a to shift the debris. - now super quiet. However, I would still like to know about the bearings part no(s).

 

[Best]

The bearings are just the standard type.
Really easy to remove the bearings on that motor, but not so easy to strip everything down and remove fan etc and refit.
Best getting your boiler service person to do it on next service after any bearing noise becomes evident

 

[Tea-Break]

I thought the bearing No was 6202, but would have to check.
You may need a specific fan puller to remove fan impeller. Then you will need a ‘generic puller’ to remove both bearings. RS type are sealed and recommended for pump side.
The job is straight forward enough but is best performed in a workshop with access to vice, pullers etc.
Depending on the motor/burner in question it is often easier and prudent to simply replace the motor.

 

[Best]

I thought the bearing No was 6202, but would have to check.
You may need a specific fan puller to remove fan impeller. Then you will need a ‘generic puller’ to remove both bearings. RS type are sealed and recommended for pump side.
The job is straight forward enough but is best performed in a workshop with access to vice, pullers etc.
Depending on the motor/burner in question it is often easier and prudent to simply replace the motor.

Usually the bearings do come off those Minor burners motors no bother just with a little leverage with a couple of flat blade screwdrivers.
They seem loose compared with other types of motors.
Better having bearing pullers though, as you say

 

[MikeJhn]

I sometimes wonder if it's worth the effort of changing bearings when the motors are relatively cheap: Login | Heating World of Spares

 

[Best]

I sometimes wonder if it's worth the effort of changing bearings when the motors are relatively cheap: Login | Heating World of Spares

And some of the motors come with capacitor as part of them.
But bearings can fail on any age of motor and seems a shame not to just replace them.
I have some old Riello burners I service that I am sure I have replaced the motor bearings at least 3 times over the years.
To replace a motor requires a fair bit of work anyhow - minimum is removing the fan and old motor. The actual job of removing and replacing both the bearings is less than 10 minutes.
And they cost very little.
Still, as you say, on some old burners it might be best to replace the motor if it seems worn out.
Riello motors to be fair to them are very hardy and usually just bearings needed