M109 Self propelled gun info needed

[Paul Singleton]

Also found this,

https://www.forecastinternational.co...fm?ARC_ID=1147

http://www.tecmotiv.com/tecmotiv/m109_support/

[Malcolm Towrie]

John,
This looks like what you have. It shows the steering, selector, and brake shafts also.

Like the M113, the flange shown for the inboard u-joint will probably slide on the splines into the transmission to give clearance for u-joint removal.

Perhaps the threaded outside diameter on the splined output sleeves in your tranny is for an oil seal holder to seal the flange hub.

Malcolm

M109 transmission.JPG

[rob love]

Originally Posted by Malcolm Towrie

Like the M113, the flange shown for the inboard u-joint will probably slide on the splines into the transmission to give clearance for u-joint removal.
Attachment 101864

The output flanges for the xmsn are secured in place with a bolt and washer, as shown in some of the diagrams I posted. More likely are that the flanges in the final drives will slide in and out as required.

[David Herbert]

Again the drawing in Malcolm's post #39 shows a rear mounted pack. The "right output flange" would be the left one on a front mounted instalation like a M109. I cannot think of a US designed rear drive armoured vehicle of this size and period.

David

[rob love]

I can check deeper into the manuals for the other relevant manuals. Often they will give away the applications.

[rob love]

Checked the manual, and for the XTG-411-2A with outputs, the end item applications are the M107 175mm SP, and the M110 8 inch SP. No doubt there will be other applications for similar set-ups. These two are the ones that use 8351100 powertrain assy. I'm not sating that is what John has, but rather that is what this particular manual covers. I'm not even sure why this manual would be in Canadian service. Edited toad: I have me answer...the M578 ARV was based on the M110 chassis. I had a look in my ARV manuals and it uses the drive units attached to the transmission rather than the separate final drives as used on the M109.

I also note in the first manual that they jump from calling the left output either left or right, depending on the photo, so perhaps that is the case of the photo Malcolm showed earlier.

[jdmcm]

Are any of those vehicles you mentioned Rob, powered from the rear? Or are they all front drive like the M109? The marines at Camp Pendleton were working on a few different self propelled guns so it is very possible it came from a different version than the M109...as long as they are all powered from the front and David has it nailed on the rotation of the T-55/55/62 final drive input...this thing is feasible...