The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Chainsawr, The Worlds Largest Inventory of Chainsaw Parts

Smith Sawmill Service





Author Topic: Partner 65 / Vintage chain brake mechanisms  (Read 815 times)

0 Members and 1 Guest are viewing this topic.

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #20 on: September 16, 2020, 11:52:35 AM »
Let me check. I won't put a link just a suggestion where to look .If not I'll peal it apart but that won't be for a week 
 .

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #21 on: September 16, 2020, 12:10:42 PM »
If you do a Google search under Partner S-65 brake assembly and go to images some will show up .It links to one web forum I'll never access again but also to others . I've got a short road trip and when I get back if you haven't figured it out I'll take it apart and snap a picture .
While I'm at it it took me about 4 years to find a brake assembly for a Stihl 042 then about 2 hours to figure it out and I disassembled it from the bones of a donor too .These things are a pain in my posterior .  :D

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #22 on: September 16, 2020, 01:28:19 PM »
I have done these google searches and found what I presume to be similar assemblies, but the issue is that the only things that come up are parts that uses to be for sale on ChainsawR, and every image has a very different set of parts. There is no hint as to where the parts go and looking at them in the pics I cant see how they would fit into the 2 pins in the brake housing. The smaller pin has only a couple mm of clearance to the back of the housing and none of the shown parts are that small... I really want to see what they look like in place.

Not to sound short with anyone, but i have spent hours on google and am at the point where I am looking for very specific things... That is, exactly what I have asked for, which is a picture of the assembly in place or removed and mocked up as if it were in place. I dont want to waste your time by having you replying with things I have already looked into 🙂 Apologies if that was not clear from the get go.

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #23 on: September 16, 2020, 05:38:01 PM »
So saying that you have a bare side cover minus the actual brake  assembly mechanism ?

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #24 on: September 16, 2020, 06:55:58 PM »
Indeed that is what I am saying!

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #25 on: September 17, 2020, 01:33:32 PM »
Here it comes .I'll apologize ahead of time with the amount of pics but I don't how else to do with it .This first shows the handle with the sleeve with a slot that the small roll pin goes through . That movable sleeve gizmo is what sets or latches the brake in conjuction with another piece in another post I'll do one pic at a time and try to explain how it works the best I can .


Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #26 on: September 17, 2020, 01:41:20 PM »
Moving right along .This shows the release which by rotating forward by contacting a pin on the bottom portion of the handle releases the tension on the spring which clamps down on the drum .Now at the same time mentioned in the previous post it rocks the lock from the small roll pin .

 

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #27 on: September 17, 2020, 01:44:13 PM »
Now another showing the cam or whatever you want to call it .

 

 

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #28 on: September 17, 2020, 01:48:26 PM »
Last one .This shows the Belleville washer and the roll pin every thing rotates on .Now if I can get it all back together that might be a real feat of patience .


Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #29 on: September 17, 2020, 05:16:49 PM »
Just as a follow up it took me about two hours to reassemble this @#*%&& thing back together .As I've said before chain brakes are not my friends . >:(

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #30 on: September 17, 2020, 09:49:06 PM »
What a legend. Thanks so much! It all makes perfect sense now. I will post again in a few days when I have some drawings and prototypes done to show the progress.

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #31 on: September 17, 2020, 10:36:54 PM »
If your going to duplicate it  you need that Belleville washer or it won't latch .Voice of experience here because I missed aligning it  two times on reassembly .This one I had to walk away from three times before I got it .
Funny thing about these brakes because they were an option in the day .For example the P-100 did not even list them nor the Mac PM 1000 but the P100 super ,a later adaptation  did .--The S-65 did though as well as a non brake cover .
Now the odd thing about that is the cover I used came on a Mac 1000 and the P-100 super I have is no brake . However on saws that are in the neighborhood of 40 years old you have no idea of the history .Except they will run like a scalded ape 8)

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #32 on: September 17, 2020, 11:49:54 PM »
Makes perfect sense about the washer. That keeps the lever detainer plate affixed to the sidewall and shtiff so it doesn't flap in the breeze when the lever passes by it, yes?

Based on your pics and the pics of parts that have been for sale on the past for this saw on chainsawr, I was able to come up with this mechanism in CAD. It looks like it should work! I modeled the housing, too, and it fits inside that tiny housing! (hidden so you can see the mechanism).

I'll be attempting to build it soon. Will keep you posted.

Also, yeah, this thing really runs. That is why I want to save it. Starts with 1 pull. I disassembled and reassembled much of it and it is all very clean. Someone loved it before me.




 


Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #33 on: September 18, 2020, 05:12:47 AM »
On the subject of the brand itself these two P-100's I restored are the only two I've ever owned or worked on .It's been a learning experience .
Why as a brand they never captured more of the market I'll never know .The way they are built they are almost bullet proof .I think one of mine died because of a faulty ignition but looked like it had spent some time on the bottom of the Pacific ocean .
I broke it loose with a grease gun and the insides were clean as a pin except the rings were frozen .At the moment I have a 20" bar on it .Do the math 99 cc and short bar .Plus it also fires on one warm but wears a D-handle because it does have some compression and the after market 272 Husky coil is a hot one .It blows a nice hot blue spark at relatively low speed which can be a kick back hazard .----well good luck,hope it works out  :)

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #34 on: September 18, 2020, 05:32:45 AM »
On the subject of CAD I never got into it but  it is fascinating .I spent the last 15 or so years of my working life working with  CNC programs and robotics but stopped short of CAD because it was not part of my job .
On something like this I can see writing a program and dumping it into a CNC controlled milling machine it could just spit out the parts .On my old 1938 Bridgeport mill it would take me a month of Sundays and many attempts .
A thought however occurred to me .Since the almost same things were used on the s-65 and the P-100 if they are not the same parts .I never crossed referenced them myself .If so I would think possibly the design might be in use on other things perhaps by different manufacturers .Like for instance who knew a Husky 272 coil  might work in place of that two piece electronic ignition system  ? I guessed and got lucky . ;)

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #35 on: September 18, 2020, 11:48:29 AM »
I had some time on my hands so I took the liberty of researching those parts numbers --From the P100 Super brake band # 303829 ,Cam # 269270 sleeve# 269275 .
On both the P-70 and the S-65 these same numbers are used except they had a 505 before them .So it would appear they are all the same .There may be other models  included in that .

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #36 on: September 18, 2020, 11:52:19 AM »
They dont make em like they used to... The way I see it, material science and manufacturing is so much farther developed that they are able to understand the limits of materials much better and manufacture precisely to expected limits, optimizing material use and manufacturing complexity. But as a side effect, especially with consumer products, using them beyond their intended limit or even close to it for extended periods seems to more often than not cause very premature failure. It does seem like a lot of older things are built to last in the sense that they inherently have a little more tolerance for abuse. I am amazed at how well a lot of these really old small engines run.

I wish I had a milling machine. I am planning on making a smaller one at some point. The tech is so readily available and cheap now, its like lego parts. I have been more in the computer scene my whole life, but absolutely love bringing those creations to reality. 3D printing has been an amazing outlet to that end. Still hand-fabbing metal like a peasant 🤪... Soon... soon...

Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #37 on: September 18, 2020, 03:25:56 PM »
In some applications high impact plastics are more robust than die cast aluminum  alloy and some it's not good ..I've seen in it automobile engines and what used to leak oil doesn't any more .Plus engine noise is greatly muffled .
However one popular make of saws has problems on it's greatly popular climbing saw .The chain brake handle, which is plastic, breaks which is not a good thing . 

Offline flagoworld

  • member
  • *
  • Posts: 14
  • I'm new!
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #38 on: September 19, 2020, 03:05:07 PM »
Is it against the rules to post a youtube vid?

I made a rough prototype the mechanism in metal after confirming it worked in plastic. It appears to work!!! I still need to clean it up and add the detent on the lever so it catches on the plate properly and with the right amount of force. Then I will 3d print a nice big handle and screw it to that metal lever.


Offline Al_Smith

  • Senior Member x2
  • *****
  • Posts: 10833
  • Location: Northwestern Ohio in the center of a giant corn field
  • Gender: Male
    • Share Post
Re: Partner 65 / Vintage chain brake mechanisms
« Reply #39 on: September 20, 2020, 09:47:43 PM »
As per the design which quite honestly fools with my pea sized brain the "sleeve " has to engage the handle to reset .


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Partner P85 Chain Saw

Started by jtcweb on Chainsaws

2 Replies
1858 Views
Last post January 17, 2004, 01:40:16 PM
by jtcweb
xx
the partner 650 chain saw info needed

Started by philipxxx on Chainsaws

3 Replies
565 Views
Last post January 10, 2019, 08:13:51 PM
by sawguy21
xx
Vintage McCulloch Model 47 Chain Saw

Started by bob_stewart on Chainsaws

4 Replies
2116 Views
Last post August 12, 2012, 09:23:30 PM
by bob_stewart
xx
CS 590 Chain Brake

Started by luvmexfood on Chainsaws

9 Replies
1701 Views
Last post December 01, 2016, 09:10:02 PM
by John Mc
 


Powered by EzPortal