Old Pneumatic VAV Box (Varitrane HRB08MXG): Need IOM, cut-sheets, submittals, etc

I am new (both to posting and to this site) so please bare with me. The lab has some very old pneumatic Trane VAV controllers. The tag says use document VAV-IN-5 for calibration instructions but we haven't been able to locate any except for VAV-IN-1 I found in another thread. The box shown in the VAV-IN-1 is similar but a bit different.

I tried to find this VAV-IN-5 on the internet and at Trane's website but no dice. Does anyone have this document and any other literature that explains/shows how these boxes work and how to set them up properly?
Attachment 298581Attachment 298591

Thanks,

Dale

I don't know where to get documents for these boxes. I do know the bolt and nuts installed into the slots along with the springs set your min and max air flows.

THANK YOU COME AGAIN:grin2:

damn; Joey- 1976

Joey,

Thanks for finding the VAV-IN-5 document. At least now we're not flying blind.

Take care,

Dale