Acme firewolf looks like a re badged FTX Fury. Not had one myself but here is a link to the instruction manual for the fury.
http://www.cmldistribution.co.uk/pro...y%20Manual.pdf
No specific instructions on how to re-build but there are some exploded diagrams which could be useful to you. I would just start taking it apart, using them as a guide and keep note on where you took the screws out from at each step, then just put it back together in reverse. Exploded diagram and parts list should help you a bit though.