Formax FD 670 - Manual (Page 16)

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SYMPTOM PROBABLE CAUSE
Stacker does not run but Burster does. Broken belt
Loose stacker drive gear/tbroken drive pin.
Faulty stacker motor.
Faulty stacker motor speed control
Faulty stacker switch.
Rollers don’t rotate/machine runs. Broken drive belt, Loose pulley.
Won’t burst properly. Incorrect roller tension.
Carriage not properly positioned.
Tear point not set correctly.
Tear bar not set correctly.
Forms pull out of tractors. Roller timing off.
Incorrect form length setting.
Incorrect feed roller tension.
Tractor drive pulley bound up.
Tractors binding internally.
Tractor pins not centered in margin holes.
Dull slitter blades.
Tractor timing is off.
Uneven inking. Ink roller not adjusted properly.
Ink roller needs replacing.
Signature patch not installed properly.
Patch worn out.
Ink roll not spinning freely.
Signature position moves. Incorrect check length for print cylinder.
Form not in tractors.
Print cylinder loose.
Print cylinder timing incorrect.
Signature patch not positioned correctly.
Large variations in trim accuracy. Paper not centered to slitter feed.
Margin slitter setscrew not tightened down.
Snap roller carriage will NOT move. Defective switch or motor.
Broken carriage drive chain.
Loose setscrew on carriage advance shaft or on motor.
Obstruction on rack.
Obstruction at the pivot arm.
Loop forming between the slitter and Obstruction between the infeed and snap rollers.
the infeed roller. Broken flow strap.
Bent infeed finger.
Tear bar in low position.
Too many tear points.
Need Anti-tenting bracket.