Brake Broke

paul case · May 24, 2017, 04:34:03 PM

My '13 LT40 super electric apparently has a magnetic brake on the up/down gear box. It is located on the outside of the pulley and has 2 wires to it. I am uncertain if it energizes when the motor is on and has a spring that ''brakes'' the motor is off. It has a tang connection to the pulley/shaft of the gearbox. The slot that the tang slides into broke out and was not braking.

Yup my brake broke.

It would allow the head to go down more after the accuset put it on the mark. It took manual resetting about half the time. Mill has 1550 hours. Woodmizer tech support said first run the chain on the up/down a little tight and run heavier oil in the gearbox. That didnt help so I ordered the new $100 brake late last Friday and it came Tuesday evening. Put it on a lil bit ago and we are up and running better now.

PC

POSTON WIDEHEAD · May 24, 2017, 04:39:42 PM

Paul, I don't have the LT 40 super, just the LT 40.
But the magnet your talking about, is that the "encoder" ?
And I have the Simple Set.

paul case · May 24, 2017, 04:42:05 PM

Nope.

It is a magnetic brake. Nothing at all to do with the computer setworks at all.

PC

Nomad · May 25, 2017, 05:27:01 AM

Poston, they put one on Slider's LT70 at the Project last week. Ask him about it.

Peter Drouin · May 25, 2017, 06:11:16 AM

Good luck with that, better buy a box of them, Let me guess the middle of the brake hog out.

4x4American · May 25, 2017, 06:25:01 AM

I think I've replaced mine once or twice so far. Peter what gets me is his mill is electric, he don't have no big cat motor on his. Oh and what we had found on mine was something to do with a computer update making it so that the brake dont brake until after the head rises it's 1/8"...I think I can't remember

paul case · May 25, 2017, 08:33:09 AM

That electric motor is a heavy weight too. I dont know that it is as heavy as your diesel but It is up there.

My whole reason for this thread is to find out if I was the only one having this issue. I guess I am not. I thought it was pretty direct when the tech told me you can try this and this and then replace the brake. I wasnt sure he even looked it up. The reply was immediate.

I told Scott that we could go redneck and I could cut him a sticker that would fit in a hole below the pulley and he could push it against the belt when he gets ready to need a brake.
His reply was that he didnt know it ever braked, so how would he know when to brake.

PC

Dave Shepard · May 25, 2017, 09:01:35 AM

Would an '08 Super have this?

Nomad · May 25, 2017, 11:34:30 AM

Dave, according to my info it was first added to the Super with rev. J7.13. My 08 LT50 doesn't have it. Don't know what the upgrade kit costs.

Dave Shepard · May 25, 2017, 11:37:36 AM

Thanks. I have not had any trouble. Accuset 2 has always hit the mark.

paul case · May 25, 2017, 12:25:58 PM

Mine too. Hits the mark fine and then it allows the head to coast down. The durn gearbox is too slick. Ifn it had some grit in the bearings I am certain this would not happen.

PC

4x4American · May 25, 2017, 07:25:36 PM

Quote from: Dave Shepard on May 25, 2017, 09:01:35 AM
Would an '08 Super have this?

Peter has an '08 40 super and he has it. He knows all about it, inside and out

paul case · May 25, 2017, 07:56:55 PM

The inside and out?
The inside breaks and you cannot buy it without the outside?

PC

drobertson · May 25, 2017, 08:31:09 PM

it boils down to a faulty gear box, that worm gear should not move like it does, just should not happen, I put two brakes on mine before selling out, disconnected it before deese bought it, worked fine, but the gear box is still an issue, always has been, always will be until they(wmz) gets a handle on their suppliers. I know of way too many folks that have struggled with (warranty) issues, seen it before in the trade, band aid fixes, and continually fight the alligators,, bottom line is the mills will chunk out the lumber, its just intermittent down falls that set folks back.

Peter Drouin · May 25, 2017, 08:40:40 PM

My mill is an 08, 51 Cat.
It ran well up to 1000hrs or so. Then the head would drift down an 1/8 then the accuset would bring the head back up. So while i'm cutting the head would jump up and down the hole cut. :D :D :D :D :D :D
Wood Mizer told me the gear box gears will be smooth over time and turn easily.
Told to put in some 90w oil.
Did not work for me.
Sold me a $60.00 brake.

This is the one with the inside hog out. Use to be a slot where the end that goes on the up and down motor shaft.
Is this what you have?

YellowHammer · May 25, 2017, 08:56:32 PM

My LT40 was dropping with the Accuset and Diesel after awhile. Replaced the synthetic gear oil with thick 90wt and it's been good since. I guess I was lucky.

Seems like a gearbox design issue.

Deese · May 25, 2017, 10:15:27 PM

I had a issue somewhat similar to this, as drobertson stated...but a buddy of mine came over while I was at work and fixed her right up. All is good down here in AL.

POSTON WIDEHEAD · May 25, 2017, 10:46:26 PM

Quote from: YellowHammer on May 25, 2017, 08:56:32 PM
My LT40 was dropping with the Accuset and Diesel after awhile. Replaced the synthetic gear oil with thick 90wt and it's been good since. I guess I was lucky.

Seems like a gearbox design issue.

3 years ago I had to put a thicker oil in my gear box also. Mine was dropping. WM told me the wrong oil was put in there to begin with.

Deese · May 25, 2017, 10:55:24 PM

In all honesty, I noticed the 2 dangling wires but didn't say anything. I got her home, did the EZ Boardwalk yoogaloo dance ritual, and BAM!! All is going smooth.