Should be able to pick it up on the McCulloch website - use this link http://www.mcculloch.biz/uk/support/owners-manuals/?query=02-063838&types=O. I've just typed in 738 and it pulls up the manual okay.
Mark
November 2010
I can answer this question...
where can i find a mcculloch service manual/parts book for a power mac 738?