| T O P I C R E V I E W |
| Peter |
Posted - 15 March 2006 : 12:34:09
I have a Diamond AF25 VS.
When starting up there is a whining noise which goes away after about 5 mins.
Any suggestions?
The noise appears from the middle or towards the motor.
Could it be the brushes on the electric motor, if so how do you replace them ?
I have cleaned, oiled pleaded but it don't go away. |
| 9 L A T E S T R E P L I E S (Newest First) |
| The Woodman |
Posted - 22 March 2006 : 09:47:58
Ha ha Peter...I do like someone with a great sense of humour ! |
| Peter |
Posted - 22 March 2006 : 08:35:11
Sorry you will have to speak up, I can't hear you.
 |
| The Woodman |
Posted - 22 March 2006 : 07:43:41
Now come on Peter......'Perfect silence',that's some maintenance you did
You must've forgot to turns the mains on as it should at least sound like a sewing machine |
| Peter |
Posted - 22 March 2006 : 07:19:14
What after 10 years and the warranty expired what is the world coming to
Belts arrived today, cleaned and oiled the motor bearings, checked out the other bearings.
Replaced belts, started up and perfect silence, strange what a bit of maintenance does
Thanks to everyone who helped, back to sawing |
| herbert1 |
Posted - 17 March 2006 : 16:37:42
Sounds like motor bearings.
Not a major problem after 10 years, just let Doug know when you do and he will arrange to supply the parts required.
You may have run out of warranty but after sales goes on eh? ha ha.
What do you build out of 2 to 3inch hardwoods? i am only asking as many people who have never seen a Diamond in action, do not beleive it will do this work for 5 minutes let alone 9 years! I really have fun when reading their incredulous comments on forums as like you I know it is true. Comforting to know.
|
| Peter |
Posted - 17 March 2006 : 01:26:59
Hi. Yes the saw is 9 years old. I have tried to locate the noise, still to no avail.
I tried wd40 on the motor bearing and it seemed to be better. Then it came back, checked the brushes, over 1/2 inch left, so they look ok.
I am waiting for some new belts to arrive in the post. When they arrive I will check each of the bearing etc as you described, by running the motor etc, I then hope to pinpoint the area. I will keep you posted and thanks for your advice.
My trouble is I am always sawing 2 or 3 inch hardwords, teak oak beech etc, puts a strain on me let alone the machine. |
| The Woodman |
Posted - 16 March 2006 : 19:27:09
Paul,the advice I gave Peter was based on the fact he mentions in his introduction that he's used his Diamond for 9 years so the saw is definitely not new |
| herbert1 |
Posted - 16 March 2006 : 17:31:11
Good advice so far Peter to help you isolate the source oof the noise, however if you do not say if this is a new saw?
If so I think the noise may just be the bedding in of new brushes, which should cease shortly as they bed in correctly the brushes are carbon and a build up can cause this temporary noise, after they are bedded in they will returnto the silent state, just as the brakes in a car can do the same. you could try swapping one side for another, just to confirm this, but best option is to please call Doug and I am confident he can help and will put your mind at ease. The bearings are top quality and if the saw is new I would be truly amazed if the problem was there!
I will speak to Doug I get the chance and ask him to respond as soon as possible. Thanks for the mention. |
| The Woodman |
Posted - 15 March 2006 : 18:35:57
Peter,
Doug is the person who is best placed to answer your question as he builds the Diamond saws !
Until he puts in another appearance I will try to help the best I can.
First of all you need to try the old trick of holding the handle of a long screwdriver to your ear and the other end at various points on the frame and motor housing close to where the noise is coming from.Listen for where the noise is loudest and this will at least give you some idea of the culprit.
To my mind,the possibilities for what you describe are either bearings in the motor or bearings in the power take-off housing. The motor brushes are easy to check so best to do that first. Simply unscrew the plastic caps on the end of the motor and check the length of the brushes.If the brushes don't spring out when you undo the caps you can gently lever them out.The brushes should be long enough so they make good contact so you'll have to use your judgment on this one.I would say if they're less than 3/8" long you should change them.
Assuming the brushes are ok there are a few other things you can try.
Take off the pulley cover and then remove the pulley belt that drives the cam and arms.
Power up the saw and if the noise has gone it will be one of the bearings at the front of the saw. If you still get the noise you'll have narrowed it down to the two things I mentioned earlier.....either motor or power take-off bearings.
Now remove the other belt and power up the motor as that's all that will be spinning now !
Run the motor at different speeds and listen for the noise.
If the noise is still there it will be the motor bearings. If the noise has gone it will be the bearings in the power take-off housing.
Hope this helps,
Alan |
