When doing calibration on a saw head one of the things you will need to do is verify the max and min values. The Centerline moves up and down via a motor and chain and is only stopped because the motor mount bracket can’t move any more because it is stopped by the saw frame.
The purpose of this article is to explain how to tighten the centerline slide enough so that vibration does not allow it to move during setup while allowing it to move during normal operation.
A "crashed" blade occurs when the Retro C's carriage tries to move in, toward the stationary side while there is still lumber in the saw. When this happens one or more of the saw blades themselves can become damaged, break or bend. But more often than that, the entire head will move slightly on the motor mount that connects it to the frame.
To replace a blade motor there are 9 steps
Power down the entire saw
Remove the saw blade
Unwire the (2) airlines and unwire the power cables
Remove the brake assembly
Using a hoist or forklift as a hoist remove the old blade motor
Attach the new blade motor
Re-attach the brake assembly
Re-wire the power cables and replace the (2) airlines
Attach the saw blade
