PTW 490 Dud Motors

[mcguyver]

I'm a little fuzzy on where this should go, as it's not really an ad per se.

I have a comm lathe enroute to me now. I'm going to attempt to re-work the 490 rotor assembly ala Tackleberry to see if I can revive a few of these expensive duds. It seems to be a simple procedure with the correct tools, the operative word being "seems". I don't have any dud 490's myself, so I'm hoping for some donations of motors.

I will follow Tack's procedures and see if I can revive them. If it works, you'll get a spiffy motor and all it will cost you is shipping to me. If it doesn't work, you'll be right back where you started, with a dead 490. I will need you to send the motor complete with brushes, as I'm not sure yet if any of the R/C brushes I ordered are compatible yet.

Let me know if anyone's interested in a trial.

[mcguyver]

I have done a few motors now.

If anyone has some 490s that they need done, let me know.

A cannot offer this service for the 480, unless you have the 490 brush hood kit for it.

I would prefer to get the whole lower to test the motor, but I can do the motors without it (but they won't get the same amount of testing).

[DB19]

So, would you still take the motor and do what Tackleberry does with it (Make it run smoother and quieter) even if it isn't broken? If so, I would be interested.

[mcguyver]

I don't pull the shims on the shaft, as you'd need to install the bearing and start using the height adjustment screw. Not everyone still has the bearing, and I can't supply them at the moment.

I solder the comm/pole junction, true the comm (and remove any arc damage) and install new brushes. They do run a bit quieter, but the 490 at it's best is louder than a 480, as it has more windings, more torque and turns a little faster.

[trevor]

mcguyver did 2 of ours and his service and results were spectacular-thanks again for taking this on. Great work!

[Cleric]

mcguyver, PM inbound!

[mcguyver]

Well, so far the production has been humming right along. I ask at this time to not send me anymore motors for now. I will be out of the country next week until the New Year. If you send me one, I won't be around to receive it.

[mcguyver]

I can start taking in motors again as I'm back in the country. PM me for more info.

[mcguyver]

I currently have enough parts to do 4 more motors (not counting what currently on my bench or enroute). I won't be re-ordering parts for them after they're gone, as I have to get them from the U.S.

If you are sitting on the fence about getting your 490 done, you'll have maybe a month at most to get it to me. After that, you'll have to send it to Tackleberry in the UK.

[mcguyver]

Looks like I was wrong. I can only accept 1 more motor, my parts are almost all allocated.

First one to my PM box wins.

[trevor]

if a person find the parts are you still doing the work or are you getting rid of the lathe?

[mcguyver]

Well I'm going to need a new tool for the lathe soon, I mean it wasn't going to last forever. Parts are not a problem to get, but I don't think I need to bring in 15 more sets of brushes for maybe a handful of motors at best. I think the interim mods I've done will last guys long enough and the new motor has been out since before Christmas.

I think I've done about 20 motors so far, pretty decent for a $150 lathe.

[Manok787]

Hey Macguyver,
How much you charging for fixing 490a motor?

[mcguyver]

How much you got?

For you, it will be very expensive.

[mcguyver]

OK, well at this point, my brush supply is all allocated, and I will only get enough life out of the tool for the lathe to finish what's booked, with some coaxing.

So, I won't be taking in any more motors for service, unless you supply brushes. Empire stocks lots of SuperMAX brush sets with springs.