B71 with 221,000

RonG

Well-known member
Truck Shop[/QUOTE]
Mike,this is the best I can do without losing it all.Ron G
As I approached it the low hole in any of the auxilliary transmissions was about two ratios lower than a full gear in the main box so with that in mind you on;y used it in very slow traveling,basically any situation where you could just about slide your foot off of the clutch without fear of doing any damage to the drive line or your traveling conditions like getting stuck worse than you might be already.
Bear in mind that the "split" selection was chosen to "split" the chosen gear in to three seperate ratios devided between the main ratio chosen with the first upshift and the ratio arrived at once you completed the shift if you had not touched the other stick in the shift process.
Let me try to clear try a little.This will be an upshift splitting as we go.(1)Shift the main from first low split where you likely will be if you are doing it right to second low split,next will be the easy shift to second direct,not too fast,remember the engine RPM you have to match,next shift to second high split,match that RPM again,try to get it to sound good like the next shift whch is a long shift but it seperatees the men from the boys in this business.
Row your way to the top,never shift to fifth from anything but fourth high split as I don't think that fifth was designed to be used in any other way.
I no doubt missed some finer points here and it has been a few but you get the points.That was a well designed transmission combination and once you get the intentions behind it you will gain respect for the design and execution of it.Don't forget the grease fittings on the shift rails on the top of the transmission.Ron G
P.S.Sorry to be so slow Mike,typing from my hospital bed on my laptop.
 

Truck Shop

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Good job Ron! The only ones I drove were 4x4 and a 9x4. The 9x4 you only split the bottom 4, the top was direct to over the next four. Basically a thirteen speed.
It was in a 78 W900, our lowboy tractor.

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RonG

Well-known member
I should have specified that my write up was as applied to a 5x4 quadruplex.They marketed a triplex 5x3 and the duplex 5x2 I think but the triplex was like the quadruplex without the low hole but I never drove one so may be wrong on the low hole thing.Ron G
 

RonG

Well-known member
Now I got a little sleep I will give you my references to the gold bulldog topic.In 1968 my employer bought 5 DM800s for 12cy concrete mixers,we were using Jeager mixers at the time and we could not get the Maxidyne drive train at the time so the first two arrived as 250hp quadrupled equipped and since I had not been assigned a new truck since I signed on with them I got one.Yippee!!The 250hp had the old silver bulldogs,the Maxidynes had the gold ones.
The other 3 came with the Maxidynes,what a sound!!I would have to wait on it however for a hand me down to get one but I had had plenty of experience with the quadruplex drive trains as we had several B-81s and B-61s for that matter plus that B-67 tractor that Mike had in his collection of wonderful drawings published here for us to marvel over.You are a special man Mike,I will never understand how you can do that plus everything else that you can do but thank you for keeping the wheels turning in more ways than one.Ron G
 

RonG

Well-known member
Of course the clutch brake needs to be working and adjusted properly which will make life easier too,I seem to remember 3" play between clutch release and the brake energized.This could go on and on huh?Ron G
 

Truck Shop

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That's the fun side of these old trucks there's always something to talk about. Not to mention they have more caricature than the new trucks.

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RonG

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Pics from the old days.

The truck nearest to the camera was mine.The drum is shinier,lol.Ron Gcrop0003.jpgcrop0002.jpg
 

RonG

Well-known member
While I was in Germany I took about 1300 or so pics and developed the film and printed the pictured in the photo lab at the service club on base there so that was another hobby of mine.I shot Kodak Tri-X film with a 300 ASA mostly and used an Voigtlander Vito CL 35mm camera which I still use sometimes.I posted quite a few on this site and will link you to one of the threads if you have the time.
http://www.heavyequipmentforums.com/showthread.php?10911-Some-old-TD-18-pics-from-my-Army-days
I still shoot B/W when I have time.I use Walgreens to develop the film and nowadays scan them into my computer.I have a dedicated 35mm scanner that will scan the whole role while I walk away to do something else.Ron G
 

Truck Shop

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I knew you were a camera man. Black and white photos are rare these days. I've always liked the contrast of B/W. That's why I do the pen & ink work.

Have a good day Truck Shop
 

Truck Shop

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One important thing I forgot to add about this old heifer is that it has air assist power steering.

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rzucker

Well-known member
Oh boy, do I remember air assist steering. It was fine on the road, but if you really had to do a bunch of tight maneuvering it would use up all of your air and pop your spring brakes. then there you were... pumping air back up. And maintaining cylinders and valves seemed to be a never ending battle too.
 

RonG

Well-known member
Part of our fleet at the concrete company was a B-61 with air power steering which was configured as a mixer but turned out to be more attractive as a dump truck and it was a hassle getting around the jobsite but was better than no power steering.Losing air was always an issue but that was before the days of spring brakes.Ron G
 

rzucker

Well-known member
Part of our fleet at the concrete company was a B-61 with air power steering which was configured as a mixer but turned out to be more attractive as a dump truck and it was a hassle getting around the jobsite but was better than no power steering.Losing air was always an issue but that was before the days of spring brakes.Ron G
I'm betting in those day they actually kept the "Johnson bar" park brakes working properly? When I was 14 I delivered liquid fertilizer to the field with an old '47 KW that was an ex off road log truck, lost a brake diaphragm once and it scared the **** out of me when I yanked the lever and nothing happened. I did make my own personal runaway ramp out through the sagebrush. Hmm, Brush Rabbit?
 

Truck Shop

Well-known member
Oh boy, do I remember air assist steering. It was fine on the road, but if you really had to do a bunch of tight maneuvering it would use up all of your air and pop your spring brakes. then there you were... pumping air back up. And maintaining cylinders and valves seemed to be a never ending battle too.
I don't know which was worse air assist or the Vickers power ram. Both had terrible over steer at highway speeds. You didn't steer it, you herded it down the road.:cowboy

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rzucker

Well-known member
I don't know which was worse air assist or the Vickers power ram. Both had terrible over steer at highway speeds. You didn't steer it, you herded it down the road.:cowboy

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Yeah, forgot about that one. Did a drag link valve on a crane carrier chassis about a year ago. Built in 1974, CCC was no help for parts, luckily the local Hyd shop could get the seals for me.
Didn't ford use a similar system on the 74- 76 F250 4x4s?
 
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