Sedgwick PT260 help needed

[condeesteso]

Hi all, just finally got a PT260 and I have wanted one for years. I got it from Lee at ALT Saws, I have left him a message but any owners here may have ideas.
First I needed to replace the supply lead (longer) and that's all fine. When I switched it on the motor hums but doesn't turn (so off again very quickly).
I took the drive cover off and reduced belt tension enough to check the cutter block spins - fine.
The actual armature felt locked, totally. So motor out, impeller cover off. To the armature side of the impeller appears to be an electronic brake, and it looks very much on. There is a small electrical cable goes into the brake assembly - but I don't fancy going any further on this. I don't have a manual yet but I am impatient to try this machine out.
I cannot imagine any safety device that would permit power to a locked motor. BUT I think this may well be significant - this machine may not have run recently - in fact I really doubt it has ever cut any wood - seriously not a spec anywhere inside or out. Apart from a few small marks on the cabinet (probably during moving times) it is really like new.
Any help, ideas re the locked armature very welcome indeed.
here are some pics anyway, it was an Axminster Plus branded one, but the Axi sticker came off very smartly

 

[condeesteso]

Update - I freed the 3 bolts that hold the brake assembly to the main casing of the motor, and discovered that the armature now moves a fraction, with brake assembly fixed firmly to it. So I am 95% sure it is a seized brake. I guess the electronic release is nowhere near powerful enough to back the brake off when seized - is it a sort of solenoid thing? (Don't start all technical with me )
Need to get the impeller off - done this before on others and I guess it is a tight push fit. Any ideas how to slip the impeller off without damage? There is no clearance behind it to get levers into - how about a hair-dryer to ease the plastic a little??

 

[flh801978]

Do you have a meter to test whether there's any voltage going to the brake when you try to power up? This would eliminate a seized brake mechanically

 

[condeesteso]

Thanks, yes, somewhere (may need a new battery!). The wires going into the brake ass'y are sleeved, but I could trace back to the supply end (in the starter casing)... have decided today is one of those bad ones - a write-off, had other things go badly too. Will try that tomorrow evening.

 

[condeesteso]

Sorted

With the kind help of Richard at Sedgwick who talked me through brake adjustment, all now running and everything I hoped for.
I am even more sure now that this machine has never actually run til now - the brake was adjusted tight locked and the access cover had never been removed. The motor manual says it is up to the user to set / adjust motor brake.
Blades are brand new and were set bang on - done a few test cuts, very pleased indeed. The mass of steel castings makes a big difference. Prior P/Ts being a Scheppach with the ci tables (really very good, rather slow changeover), and a Startrite PT260 (disappointing in my view, given I am a big fan of the T/A saws and the brilliant 352 bandsaw).

Richard kindly sent me a pdf of the motor brake adjustment manual (AEG 1.5Kw) - pm me if it may be of use to you.

Top marks to Sedgwick for building outastanding machines, and providing equally good service.
(still not had my calls returned from Lee at ALT :!:

p.s.... and the change-over on the Sedgwick? There isn't one (apart from extractor maybe).