Preparing Your Chain Saw; Assembly; Installing The Guide Bar And Saw Chain - Black & Decker CCS818 Instruction Manual

Wearing protective gloves
thread allen head screws (9) in with wrench until snug,
.
The saw chain and guide bar are packed separately in the carton inside the
scabbard. The chain has been placed on the guide bar at the factory to
insure that the teeth are facing in the proper direction when you first attach
it. Should the chain come off of the guide bar, refer to the section
"Replacing the Chain" for proper tooth orientation.