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GM Guy 
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Joined: 31 Jul 2012
Location: NW KS / S.C. ID
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 Topic: Which Allis loaders had air brakes & other ?'s
Posted: 22 Feb 2015 at 9:51pm |
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Hey all,
We are looking for an Allis wheel loader to move equipment around the yard, and possibly do some occasional dirt work.
We are not huge fans of hyd. brakes, love air brake systems, (half the reason is because you can air up tires. :) ) and would like to find a loader with air brakes.
Is the 745 the smallest with full air? I know a buddy has a 745H or HB (as far as I can tell, the 745H is the 845 that never was) and it has air brakes.
Also, what are the powertrain breakdowns? all I know is the 945 is running the big 844, and the 745H is running the 516, but IDK much after that, I am aware they used the 2900 and 3500, but dont know the model breakdown.
Also, are any of the 545 through 945s harder to find parts for compared to another model? (745H Vs. 745, 645 vs. 745, etc) (basic maintenance such as seals, brake parts, etc.)
I do know that Minn-Par is supposed to be the go-to source for Allis parts.
Any input appreciated, thanks!
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Gleaner: the properly engineered and built combine.
If you need parts for your Gleaner, we are parting out A's through L2's, so we may be able to help.
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donoman
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Joined: 18 Feb 2015
Location: New Zealand
Points: 117
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Posted: 22 Feb 2015 at 11:25pm |
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I had a 605 loader with full air brakes, next model up from the 545H.
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CAL(KS)
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Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3800
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Posted: 23 Feb 2015 at 6:27am |
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friend just bought a 68' 645 and it has air brakes. kinda strange they are air over hydraulic
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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darrel in ND
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Joined: 22 Nov 2009
Location: Hebron, ND
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Posted: 23 Feb 2015 at 10:23am |
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My 645 has air/disc brakes. It's a beast. Darrel
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Mactractor
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Joined: 20 Jun 2011
Location: New Zealand
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Posted: 23 Feb 2015 at 1:08pm |
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My 605`s are air over hydraulic with manual parking brake. Been wondering if I could fit full air discs from heavy trailer axles to the drive shafts to improve braking
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Eric B
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Joined: 09 Feb 2012
Location: British Columbi
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Posted: 23 Feb 2015 at 9:25pm |
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My 1971 745 was air over hydraulic brakes.
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Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!
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steve(ill)
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Location: illinois
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Posted: 23 Feb 2015 at 10:05pm |
I think 545 = 2800
I think 605 = 2900
I think 645 = 3500
Edited by steve(ill) - 23 Feb 2015 at 10:06pm
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Like them all, but love the "B"s.
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Eric B
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Location: British Columbi
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Posted: 24 Feb 2015 at 3:43pm |
 Mactractor wrote:
My 605`s are air over hydraulic with manual parking brake. Been wondering if I could fit full air discs from heavy trailer axles to the drive shafts to improve braking
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You are onto a good idea...to service them would be so much easier than pulling the wheels and planetaries. I know that for trucks you can install an electro-magnetic brake unit on the drive-line (not exactly cheap). It might be worth checking into as technology is always expanding. I wished my 745 would have been all air brakes like a Cat 966 (not for their famous squealing LOL, but having no fluid leaks).
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Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!
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Mactractor
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Posted: 24 Feb 2015 at 7:36pm |
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Yep, the Telma electro mag retarder was around years ago for trucks. My 605 had a small useless drum brake at the rear drive head flange for parking. I thought of replacing it with an external hydraulic disc brake from a grader stub axle, to help the feable hydraulic drum service brakes. Then saw the full air discs appear on trailer axles, and thought by using them on both driveshafts, you would have efficient service and park brakes. Truckers have told me the Bendix seem to be about the most trouble free of them for off highway work
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Amos
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Posted: 05 Mar 2015 at 12:00pm |
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Any body have a picture of a loader set up with the above mentioned air brake on the driveshaft. I am guessing a disc on each input shat would be the way to do this?
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Mactractor
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Posted: 05 Mar 2015 at 12:36pm |
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I`ve not seen it Amos, just thought it might be possible. Just using hydraulic discs from graders would improve the braking, but if you could use full air trailer discs, you would have good air spring operated park brake also
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Amos
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Posted: 05 Mar 2015 at 4:05pm |
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I completely agree Mac. One of my articulating 4wds has one rotor on the back of the transmission and it slides the tires with ease, usually tossing you into the steering wheel at the same time. I have no issue with how the hydraulic brakes stop my 645, just that the wheel cylinders all leak, the master cylinders all leak the lining is about worn out and the transmission shift valve (the one actuated by the brake pedal) is leaking brake fluid into the transmission.
So to sum it up I am looking for a lot of money in parts, a lot of work to change the parts and I would love to have a system of only air not air over hydraulic is all. I think I can likely fabricate the caliper mounts and make this work for less money than fixing the original system and not have to worry about contaminated transmission oil, which I am sure is not good for the transmission. I bought the old girl this way too.
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SteveM C/IL
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Joined: 12 Sep 2009
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Posted: 05 Mar 2015 at 10:40pm |
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My 545B has air over hyd.Got master cyls from Rockauto for around $35 each(Ford application).Wheel cyls on this are 1 3/4 bore.Priced @$220 from machinery dealer but same thing @ Rockauto was $19.50. Doorman product #W1012.That stuff is not exclusive to construction eqp.The industry stole it from automotive and jacked the price.Just takes some digging and detective work to figure it out. I can get the Dorman # for master cyls if you need em.Think they were 1 1/4 bore.
Steve IL my 545b has 2900T
Edited by SteveM C/IL - 05 Mar 2015 at 10:42pm
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SteveM C/IL
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Posted: 05 Mar 2015 at 10:43pm |
darrel in ND wrote:
My 645 has air/disc brakes. It's a beast. Darrel |
What year is yours?Looking at Min-parr manual I only saw drum brakes on 645,but obviously that's not the whole story.
Edited by SteveM C/IL - 05 Mar 2015 at 10:45pm
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Amos
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Posted: 06 Mar 2015 at 7:14am |
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I am guessing Darrel's has been modified. Minn Parr did not have any stock on the wheel cylinders when I called them last summer with the parts I thought I was going to need. Why not get rid of a potential cross contamination valve like the one on the transmission when you have a chance? Makes more sense to me. I will see when I get into it what it is I can find. There are two different wheel cylinders listed for my machine and it is very near a serial number break so I want to get it apart and see which one I need before ordering anything...you don't know exactly until it is apart with these older machines I have found.
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Amos
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Posted: 06 Mar 2015 at 5:08pm |
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I was discussing this with my nephew and we are wondering if Darrel's loader may have had both axle housings changed to a different manufacturers that uses disk brakes,,
just a thought.
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SteveM C/IL
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Posted: 06 Mar 2015 at 8:45pm |
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Them wheel cys are available from Napa under same #(W1012) but cost upper $30's
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Amos
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Posted: 07 Mar 2015 at 9:02pm |
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Thank Steve, I'll check that out.
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darrel in ND
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Posted: 08 Mar 2015 at 11:05pm |
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Steve, I think the disc brakes are factory. Right after I bought the machine, I was visiting with a guy who really knows his stuff about these loaders, and he was trying to determine about what year it was, and one of his questions was if it had disc brakes on all four corners. At the time, I didn't know because I had just got it, so I checked it out the next day, and it did. But then I never got back to that guy to tell him so he could determine the approximate year of it. Still don't know. Darrel
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