The Forestry Forum

General Forestry => Forestry and Logging => Topic started by: Solo33 on January 05, 2025, 04:12:43 PM

Title: Clark 28000 brakes
Post by: Solo33 on January 05, 2025, 04:12:43 PM
Curious if there is a trick to get the thick end plate steel disc lined up in the grooves for the brakes. To lift the brake housing and keep the steel disc positioned is a PITA! 

The 6 small spring and rods prevent it from being set in first so it needs to be drawn in with the brake housing bolts it seems 
Title: Re: Clark 28000 brakes
Post by: kiko on January 09, 2025, 07:29:13 PM
It is a pain. I have chanfered the edges to make the plate line up easier.  Pulling it in with bolts never worked for me.  You got be ready with a couple of bolts when it finally lines up. Hold the housing while you start some bolts. At that point you will pull it in against the springs. I hope I described good .
Title: Re: Clark 28000 brakes
Post by: rusticretreater on January 10, 2025, 01:32:01 AM
I assume you are talking about the transmission brake?

Clark Trans Manual (https://www.numeralkod.com/cross/archivemanuals/clark/28000%20series%20trans.%20mounted%20hyd.%20brake%20sms-hb280%20rev.%208-81.pdf)

Page 12 talks about using guide pins in the upper corner bolt holes.  The pictures are bad so its hard to tell what is going on.  

If you can find some bolts long enough to extend all the way through the housing and cut the heads off, you can use them as screw in guide pins.
Title: Re: Clark 28000 brakes
Post by: kiko on January 10, 2025, 05:33:32 PM
Yes,  the brake that pto shaft comes through. Much more difficult in the frame sometimes need two people because once it cogs it not all the way down but you must hold there until you get a couple bolts started.
Title: Re: Clark 28000 brakes
Post by: kiko on January 10, 2025, 05:41:15 PM
So the guide pin thing never worked for me . Got to move the plate around to line up with the housing until it falls then the bolts go in . Then by going around slightly tightening each bolt you can pull it in against the return springs tension.
Title: Re: Clark 28000 brakes
Post by: Solo33 on January 11, 2025, 06:50:33 PM
I got it in. Guide pins and picks to rotate the end plate until it looked in place. Then drew it in evenly with the bolts. The winch/pto shaft that runs through the middle, does that just push in to place? Thanks 
Title: Re: Clark 28000 brakes
Post by: Solo33 on January 12, 2025, 08:46:17 AM
Or should I have put the shaft in first then brake cover. Oh boy 
Title: Re: Clark 28000 brakes
Post by: Plankton on January 12, 2025, 09:53:34 AM
(https://forestryforum.com/gallery/albums/userpics/37042/1000003669.jpg) (https://forestryforum.com/gallery/displayimage.php?pid=357406)

(https://forestryforum.com/gallery/albums/userpics/37042/1000003668.jpg) (https://forestryforum.com/gallery/displayimage.php?pid=357405)

(https://forestryforum.com/gallery/albums/userpics/37042/1000003670.jpg) (https://forestryforum.com/gallery/displayimage.php?pid=357404)
Title: Re: Clark 28000 brakes
Post by: Plankton on January 12, 2025, 09:56:06 AM
Ive never done it and you already got it on but maybe those will help the next guy with a little clearer pictures out of my book.

Good luck!

Though I guess them getting reduced in quality didnt help the clarity any.