Can someone explain trans brake system to me
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=102444
Printed Date: 14 May 2025 at 9:48pm
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Topic: Can someone explain trans brake system to me
Posted By: Dmpaul89
Subject: Can someone explain trans brake system to me
Date Posted: 25 Feb 2015 at 12:06pm
| If I coast to stop my 7000 will most likely be stuck in gear. If I brake to stop the shifter works fine. I am pushing the clutch in as far as it will go. Does this mean my trans brake isn't working? in my manual There was a loose photo copy with a diagram with some scribbles showing the trans brake linkage, so I guess the PO was having issues as well. How can I tell if its working or not? |
Replies:
Posted By: Mike_426
Date Posted: 25 Feb 2015 at 12:42pm
|
If it were working you would know. I've pushed mine too far not thinking it'll remind you where the steering wheel is if it works. ------------- G, 200, 8050 mfd, D17, 195 chainsaw, c-wide front |
Posted By: Dmpaul89
Date Posted: 25 Feb 2015 at 3:24pm
| are you saying the trans brake can stop the whole tractor? I thought it just made the gears quit spinning |
Posted By: Mike_426
Date Posted: 25 Feb 2015 at 3:58pm
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It'll stop the whole tractor if idling hooking up an implement or whatever. ------------- G, 200, 8050 mfd, D17, 195 chainsaw, c-wide front |
Posted By: DrAllis
Date Posted: 25 Feb 2015 at 4:23pm
| A model 7000 tractor will not stop the entire tractor like the 7010 and up. Is this a black 7000 or a maroon 7000 tractor ?? |
Posted By: CTuckerNWIL
Date Posted: 25 Feb 2015 at 4:45pm
|
Sounds to me like you best be using the brake pedals to stop. The transmission brake was not meant to be used to stop the tractor. JMO
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Lynn Marshall
Date Posted: 25 Feb 2015 at 5:13pm
| The 7000 uses a transmission brake system that is unique to only that model. It is a mechanical rod and linkage that applies a friction brake puck against the rear face of the power director pack to stop it from spinning so that you can shift gears more easily. It not as good as the larger 7000 series power director tractors (7010--7080) that uses a hydraulic brake piston and disc on the countershaft to stop the rotation of gears. When you push in the clutch all the way at a very slow speed, you can feel the brake being applied and it will make the tractor stop. It's not made to stop the full momentum of the tractor, especially with a load behind it. That's what the foot brakes are for. The 7000 series power shifts (7010--7060) applies two clutch packs at a lower pressure to stop the rotation of the gears and clutch packs. It can be pretty severe and will certainly stop the tractor at slower speeds. |
Posted By: Dmpaul89
Date Posted: 25 Feb 2015 at 10:50pm
|
Thanks marshall for the explanation. Ctucker c'mon man thats common sense I wouldnt use it to slow down Dr.allis it is a black belly. So looks like if I want it to shift easily ill have to drop the fuel tank and adjust the linkage. Hopefully there will be some adjustment left! |
Posted By: Dmpaul89
Date Posted: 25 Feb 2015 at 10:56pm
| Lets say I take off in 3rd and push the clutch in to roll stop. The tractor will now be stuck in 3rd. The only way I can get it out of gear is to either take off again and use the brakes to stop, Or shut the tractor down. This happens most of the time, less when the tractor is cold ( I assume this is because the oil is cold and thick and the gears dont free spin?). |
Posted By: MACK
Date Posted: 26 Feb 2015 at 8:43am
| Let up a little on clutch. There should be a area between engauge and brake. MACK |
Posted By: CTuckerNWIL
Date Posted: 26 Feb 2015 at 4:51pm
If the tractor is moving and in gear and you push the clutch ALL the way down, you ARE using the tranny brake to stop the tractor. Push the clutch in just far enough to release it and roll to a stop and see if it's stuck in gear. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Dmpaul89 wrote:Posted By: SteveM C/IL
Date Posted: 26 Feb 2015 at 5:46pm
| Power directors don't "clutch brake" well when started cold.After they warm up a little they are fine.Sounds like your adjustment may be off some but if you're riding the clutch brake at all as you stop it will have things in a bind.Do as MACK says and let up some. Remember you are not releasing a dry disc clutch with the pedal.You are killing pressure to a hydraulic clutch pack. |
Posted By: Dmpaul89
Date Posted: 27 Feb 2015 at 12:33pm
|
I think I got it figured out. I Didn't think it would be this complicated just to shift! having second thoughts about letting anyone pull a cart with it this fall.. Ctucker I didn't mean to sound rude if that's how you took it. I appreciate any and all input. And I'll admit I was pushing it in all the way while slowing down, I guess the trans brake is just so weak that I didn't notice a difference. The manual is not much help on shifting. I now Know that I need to push clutch halfway in to stop and then all the way down to shift and it is working better. Thanks Guys! |
Posted By: DrAllis
Date Posted: 27 Feb 2015 at 12:51pm
| And when you KNOW you intend to pull it out of gear anyway, yank it into neutral just before you stop rolling and it will work better. |
Posted By: tbran
Date Posted: 27 Feb 2015 at 10:54pm
|
I will try to look up the bulletin - but there was a field campaign on some models that required grinding the torque lock off the 3d 4th gear.. might be one that got missed...appreciate anyone who beats me to the info.. :-) ------------- When told "it's not the money,it's the principle", remember, it's always the money.. |