Timberjack 230 D with dual brake drums on transfer casef

[TravisMVL]

I bought a 1977 automatic Timberjack 230 D earlier this year and have sunk a lot of money into fixing it up. It's getting closer to being the way it's supposed, it unfortuantley was jimmy rigged everywhere, hence the cheap price I paid for it.
I decided to finally fix the parking brake earlier this week (mine is entirely missing except some kind of lever like linkage under my winch) and started calling up some salvage yards. The people that I spoke to wanted to know the transfer case model and serial number, but the tag is missing. I looked at my Operators Manual for model 230 and 240 automatic skidders, and 200 series D Service Manual, and both show a transfer case with one brake drum right under the winch.
My skidder has an identical looking transfer case to my manual drawings, including the brake drum directly under the winch, but it also has a second brake drum right behind the lower steering hinge pin where the parking brake should be. I kind of feel like my machine is supposed to have dual brake drums because under neath my winch and parallel to the rear brake is some lever like linkage that appears to be part of a brake assembly that would possibly apply pressure to the outside of the rear drum.
My manuals show nothing of what's supposed to be hear, and I have not found any skidder parts guys that know anything about this! Can somebody please help?

[TravisMVL]

This is an excellent website, but the picture uploading is horrible and unlike any other website I have ever seen!

[beenthere]

TravisMVL
It is not too difficult. 99.9% of us have accomplished the task.

Takes some patience tho, and some new members post pics on their first post.

What do you need help with?

[madmari]

I have the shop manual showing dual drums. I can scan the blow-ups and send them if you'd like them. Send me an email to madmari0305@yahoo.com and I'll get them to you.

[bushmechanic]

We had the dual drum brakes on the double rack 230D timberjack forwarders.Those transfer cases were New Process and I think the extra drum was added because of the increased weight on the machine.It is possible the transfer case was changed and they probally got one out of forwarder and put back in your skidder,because they will fit no problem.If I were you I would scrap the drum brake and rig up a disk brake assembly because those drum brakes are troublesome. 

[240b]

Its a rockwell or new process transfer case like bushmechanic said.  the parking brake is a band which warps around the outside of the drum. thats probably what the linkage is about.  I think the canadian models had to have a secondary braking system, hence the second drum. At least that is what my old manual showed. If it is really cobbed together might be better to find a clean machine and use that on for parts. 

[lumberjack48]

Just my thoughts, put a disk brake on it know in stead of later. I'd get the set up off a S8 International from a salvage yard, very simple set up, it would evolve welding the caliper bracket on. I did this with a C5D , they had the drum brake absolutely  worthless.

[TravisMVL]

Thanks to all, great information! This machine will most likely become a parts machine for me sooner or later, I'd rather keep it running if I can expecially after putting a new trans and new tires on it.
I see that everybody else does not seem to have a problem uploading pictures, maybe it's something with my computer. It keeps saying error during applet installation and the window that pops up keeps freezing. I have no problems on other forum websites like woodweb??? First time I've seen java uploader. This website's been a help to me and I don't mean to knock on it.
Madmari, I just sent you an e-mail, If you see this post first please email them to info@middlevalleylumber.com thank you!

[TravisMVL]

I'm starting to think that the transfer case I have may be origional to my skidder because the linkage levers that are still intact were definatley factory welded to the frame and revolve around the outside of the top drum (the one under the winch). 
It's possible that somebody took the transfer case out of a fowarder and welded the linkage parts to the frame with extreme precision welding (it's a little more intricate then just welded to the frame), but I highly doubt anybody would have taken the time to do such a thing. Back in the day (before the internet made things easier to find) somebody could have taken the time to do this having not been able to find a proper exact match transfer case in a salvage yard in the days before the internet made things easier to find.
My machines paint is old and seems to be origional because the paint is where it's supposed to be, no hydraulic lines or other components are covered or over sprayed. When I power wash it into hard to reach areas (including this brake linkage area I'm talking about) the paint is cleaner, but blends right into what is more exposed. I'm really lead to beleive that the transfer case and brake linkage is origional, but no mention of dual drum brakes in an automatic 1977 230 D is in the book manuals, kind of bizzare. When I bought the machine seveal people told me that there were a ton of options on the lat 70's models which make parts hard to find, maybe this is really true.