There is a manual listed at:
http://www.agtannenbaum.com/m_cat.html#MCMURDO
It is not for free, but AG Tannenbaum makes good manuals. Perhaps someone else on here may have a manual they can email you.
Radiodoc
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:I NEED MANUAL, FOR RESTAURATION AND USER MANUAL
Carlos,
I also found some information at:
http://www.atwaterkent.info/akRequests.html
Radiodoc
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:
::I NEED MANUAL, FOR RESTAURATION AND USER MANUAL