transfer case pto output

[BFR]

Gentlemen,
I am having a hard time working out the driveline between my transfer case PTO and a hydraulic pump. My problem is the stock flange will put the cross of a ujoint 3-1/2" to 4" from the air tank. Clearing the tank will result in a very high angle on the joint (one it can't handle due to interference with the necessary flange yoke).

So does anyone know a source that carries...
a sprocket that fits the output?
(roughly 1-1/2" tapered, keyed shaft)

or

a yoke (like what is used in agricultural applications) that will replace the flange completely
(roughly 1-1/2" tapered, keyed shaft)

 

[zb39]

just curious, what is hyd pump for?? might try tractor supply.

 

[Recovry4x4]

Joel, got a pic?

 

[jatonka]

Hi Joel, Industrial supply houses have the sprockets and roller chain you are looking for and Graingers and McMaster-Carr, both big industrial supply catalogs all over the USA. You also have an option to lower the air tanks as was the setup on the water and fuel tanker trucks. The tanks were in the same location, just lowered on the bracket to make room for the long drive sheaft to the rear pump. The sprocket/chain drive combo is probably easier though. John T

 

[gringeltaube]

...maybe like this ...???

 

[BFR]

Hi Joel, Industrial supply houses have the sprockets and roller chain you are looking for and Graingers and McMaster-Carr, both big industrial supply catalogs all over the USA. You also have an option to lower the air tanks as was the setup on the water and fuel tanker trucks. The tanks were in the same location, just lowered on the bracket to make room for the long drive sheaft to the rear pump. The sprocket/chain drive combo is probably easier though. John T

I have looked in both places, but the only sprockets I have found with a tapered bore seem to be designed for use with a bushing that clamps on to a a non tapered shaft.

...maybe like this ...???

I wish I could pull the tank into the frame like that, but I will need the gap between tank and frame to pass mounting bolts for the crane through.

 

[cranetruck]

Joel , my set-up is like G's.
My truck was originally an M49 tanker, so the PTO/drive shaft had to clear the tanks for the route to the rear mounted pump.
Remember to allow for the up and down movement of the main drive shaft when locating the hydraulic pump.....

 

[BFR]

pic of the tapered shaft.

 

[BFR]

If the tanks are seperated (one close to each frame rail) at the stock height would the driveshaft hit the one relocaed above it?

 

[Stretch44875]

Should not interfere, that is where my tank/pump is for the dump, and it dosen't hit, and is larger. But check for yourself....

Also, on the PTO of my crane truck, the tank is moved to the spare tire location, but the M108 stores the spare on the crane.

Dennis

 

[BFR]

maybe the shopvans (my truck started its life as a M185A3) have an oddball air tank arrangement? My tanks are suspended under straight strips of channel that run between the frame rails, not above strips of channel that dip down like in Gerhard's pic and in this one I found of Stretch's truck. I am all but certain that my gasser (m45) had the same mount as my current truck.

 

[BFR]

on my truck, (right after I got it)

 

[Stretch44875]

The pieces of angle iron going across the frame rails on my truck are there to support the hydraulic tank, and do not mount to the airtanks.

Not the best pics, but your tanks are mounted different than mine. There is a small piece of channel under my tanks, that goes from under the tanks, up to the frame rail on the oppisite side. One is cut short to fit the pump/tank in. Tanks are clamped to the channel with straps.

Yours look like they are mounted from above. Maybe you can junkyard a set of straps/mounts from another truck and mount yours the same as mine, if that would help.

 

[gimpyrobb]

I have some cool sets of straps for mounting tanks. I have a few tanks too. I been busy, forgot those #s I promised. PM sent.

 

[cranetruck]

Joel, while you are at it, see how the crane is to be mounted, you may need to consider that also. The frame may have to be free and clear for the crane mount, if clamped like mine...

 

[BFR]

Joel, while you are at it, see how the crane is to be mounted, you may need to consider that also. The frame may have to be free and clear for the crane mount, if clamped like mine...

pics?

 

[cranetruck]

Pics? I'll see, the bed is on now so it's hard to see all the little details....
There are four clamp assemblies, each having two 7/8 inch rods going down on each side of the frame rail to a block below the frame.
I'll look for old images.....

Edit: BTW, where did you find that PTO, don't remember mine having a tapered shaft...

 

[Westech]

Not to hijack.. But I have a extra T case PTO if any one wants one cheap.

 

[11Echo]

Maybe you could move the air tanks here and the spare there.

 

[BFR]

I "think" I have found a way to mount a sprocket, but I know very little about roller chain. I can choose between ANSI 35, 40, 50, or 60. Any thoughts?