Adjustment For "Tracking" 3 - Scott Edge Reinforcer Instruction Manual

Fig. 3-50. Example of Bad Tracking
Fig. 3-51. Loosen the Socket Head Screw
Holding the Clamp Bar in Place
Edge Reinforcer Issue 1
A
B
3.4.4 Adjustment For "Tracking"
An adjustment must be made when the polyester
tape does not run parallel to the edge of the sheet.
It is sometimes necessary to make a "tracking"
adjustment when you change the weight of the
paper stocks. Bad "tracking" is caused by the
machine failing to drive the sheet in a straight line
as it goes through the machine. The "tracking" of
the tape is determined by the large roller which
applies the strip of plastic to the paper. Therefore,
any change in the angle of this roller will change
the direction of travel of the sheet. The large roller
is mounted on a 3/4--inch diameter shaft which is
held by ball bearings in the front and rear gear
housing plates. If you look at the back of the gear
housing (near the plastic reel holder) you will see
that the rear bearing is mounted in a separate
round holder. This holder has an eccentrically
bored pocket for the bearing so when is rotated
slightly it will change the angle of the shaft and the
large strip applying roller. The round holder is held
in place and prevented from rotating by a clamp
bar which is locked by the socket head screw in
the clamp bar.
Step: 1. Loosen the socket head screw (A) which
holds the clamp bar (B) in place.
3 Operation
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