1650 Internal Brakes

CHESTERSCUBSC · #1 03-07-2013, 05:39 PM

I have the motor and drive shaft out of the tractor and while I had it jacked up I decided to check the brakes. When I pushed the pedal all the way in, the rear wheels continued to turn. When I bought this tractor and did a test run I don't recall using the brakes but just controlled the tractor with the hydro.

Do I have a problem? Or does it have something to do with having the drive shaft out?

Any input would be appreciated.

Thanks Ron

Sam Mac · #2 03-07-2013, 06:27 PM

All I can think of is you need to adjust the brakes or maybe replace the pucks if they are worn out.

cadzag72 · #3 03-08-2013, 12:54 AM

did both wheels rotate the same direction? I imagine the internal brake on your 1650 is the same as the one on the older narrow frames, which instead of locking the wheels locks the transmission output. if both wheels are off the ground, one will rotate forwards while the other rotates backwards, because the spider gears in the differential are free to move but the ring gear is not. if you put one wheel on the ground, you should be able to test your brakes effectively. chances are pretty good they're fine, because I think a lot of people (myself included) do all the speed control with the hydro lever, as you mentioned you do.

CHESTERSCUBSC · #4 03-08-2013, 10:14 AM

I had not paid attention to the rotation, but after seeing your response I tested again and the wheels where rotating as you had indicated. I tested again by locking the brake and trying to spin the wheels both in the same direction and the brakes did work.

Thanks for your input you were right on with your feedback, I sure wasn't looking for more work to do to fix another issue.

I am looking at the trunion now, not sure if the wear is bad enough that it will require a fix. Seems to be worn in one of the corners. Will post a picture later to get some feedback on what I should do.

Thanks again for your input it is greatly appreciated.

Ron

cadzag72 · #5 03-09-2013, 08:11 PM

Anytime! glad to save you from some extra tear-down.

AyatinGL · #6 04-04-2016, 08:28 AM

Good morning fellow IHCC'ers,

I also have a question about the internal brakes within a 1650. I was pressing the brake pedal and the brakes were not engaging. I thought I needed to replace the braking disc inside (IH-384719-R1) but I came across something in the owner's manual (page 26) that explained how to adjust the brakes. I was so glad I came across that! I thought I was having to split the tractor and dig into the transmission to replace those discs. But, after adjusting the brakes they're now engaging - so glad!

My question is, when the manual reads...

"The disc brakes should start to engage when the pedal is pressed down to within a maximum of 1-3/16-inches and a minimum of 3/4-inch above
the pedal stop.

The brake is engaged when pedal arm is at least 3/4-inch above pedal stop.

NOTE: The brakes must not engage before pedal is within the maximum distance of 1-3/16-inches."

...are those numbers, along with the attached diagram, applicable to both external and internal brakes on a 1650? (or were 1650s only ever manufactured with internal brakes?)

Yosemite Sam · #7 04-04-2016, 12:52 PM

My parts manual shows the 1650 with internal OR external brakes, that was actually news to me as I've only ever seen them with external brakes (not that I've seen all that many 1650's).

Been a long time since I've read the book about adjusting brakes but IIRC the manual is correct on the adjusting procedure for either style brake. As long as your lever comes back to neutral before the brakes engage, you're good.

AyatinGL · #8 04-04-2016, 01:55 PM

Yosemite Sam - Thanks for the heads up. My lever indeed comes back to neutral (with the tractor going in reverse ever so slightly...so something will need an adjustment...like this? https://www.youtube.com/watch?v=0tILe2jj7aM) - I just want to make sure I have the brakes engaging at the right point in the swing from no braking to full braking.