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Subject: ‘Emergency’ brakes on a NAA

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James C. Abbott, Jr.    Posted 10-16-2017 at 14:38:13 [URL] [DELETE]        [Reply] [Email]  
  • ‘Emergency’ brakes on a NAA
  • I recently purchased a ‘53 NAA. I also purchased an owners manuel and a shop manuel. The emergency brake on the tractor does not function as designed since a previous owner had painted the tractor and did not take the necessary steps to prevent the brake parts from seizing up when the paint dried. I’m in search of a solution for freeing up the necessary parts so that this added safety feature can be used.

    To paint a better visual picture (pun intended), the brake pawl (?) does move freely, however the piece with the ‘teeth’ does not move at all. I have tried WD40 as well as paint stripper to loosen the frozen part but that has not worked.

    Thanks in advance for your input

    36 coupe    Posted 10-21-2017 at 18:25:56 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • Parking brakes.Basic stuff.

    36 coupe    Posted 10-21-2017 at 18:24:30 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • Parking brakes.Basic stuff.

    TheOldHokie    Posted 10-18-2017 at 08:30:32 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • The piece with the teeth is not supposed to move. It is firmly bolted to the center housing. The pawl pivots and engages the fixed piece and locks the pedal in the down position. To set the parking brake:

    1. Press the brake down firmly with your foot and hold it there
    2. Use your hand to move the pawl against the fixed piece with the teeth
    3. While holding the pawl in place lift your foot off the brake
    4. Brake is now set
    5. To release the brake revere those steps

    Se page 17 of the operator's manual for their description and picture.

    TOH

    James C. Abbott, Jr.    Posted 10-18-2017 at 10:24:59 [URL] [DELETE]        [Reply] [Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • TOH: Copy that. There are ‘teeth’ on a piece located on the same ‘pin’ as the pawl. Am I correct that the movement of the pawl into the forward/horizontal position should cause these teeth to mesh with the fixed teeth located slightly forward (about .5”)?

    The pawl moves freely. If it was a minute hand on a clock, it moves forward to about one o’clock, however it seems that it needs to move to closer to three o’clock in order to force the ‘moving’ teeth into the ‘fixed’ teeth.

    The teeth adjacent to the pawl which are located on the same stem will not move as a previous owner has painted over them. I’ve used WD40 and a paint remover to attempt to free the teeth, however I have not reached a successful conclusion yet.

    At the suggestion of another ntractorclub member I contacted Red Rock Manufacturing in Pella, Iowa and had a very good convesation. RRM sells an after-market emergency break for 9N , 2N, 8N, and NAA tractors, however the attachment point is the same as the brake pawl, therefore I’m at a standstill until I can resolve my initial issue.

    It was suggested that I use a substance called PB Blaster (sic) over a period of time in order to loosen up the teeth on the stem with the brake pawl.

    I’m a Buckeye by birth, and focused and persistent by raising. I’ll continue on until I suceed.

    Jim

    AL CT    Posted 10-16-2017 at 17:43:55 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • I've used the red rock parking brake systems before and they work great.
    Links section has them listed or open the link I provided.

    tractorfix    Posted 10-16-2017 at 20:28:06 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • Have a Red Rock brake on my 50. Its great, I love it !

    BlasterStumps    Posted 10-16-2017 at 15:12:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • Mine just has the standard parking brake setup. If what you are trying to move is the part that swings on the back side of the brake shaft and is operated by the swinging lever, I would just take a bar and keep working it back and forth until it frees up whilst spraying the penetrant.

    bkrsdoz    Posted 10-17-2017 at 07:34:53 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • I installed the Red Rock MFG "Arnco Parking Brake" on my '53 Jubilee.
    It works great, and is a lot easier and safer to use than the original parking pawl
    set up that it came with from Ford.

    James C. Abbott, Jr.    Posted 10-18-2017 at 10:29:25 [URL] [DELETE]        [Reply] [Email]  
  • Re: ‘Emergency’ brakes on a NAA
  • How did you remove the pin which holds the original pawl?

    Based on the pictures on the RRM website, it seems that once that hurdle is overcome, the rest is downhill.

    Thanks in advance for the response.

    Cincybeerhawk

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