Chaff Content
283
Tractor Pin Holes
The holes which engage the tractor pins must conform to the following
specifications:
Methods Of Forms Attachment
________ Must not allow air entrapment between copies of the form
________ Must not use hard brads or staples
________ Must not coincide with major perforation or any horizontal
perforation
________ Gluing lines must not result in a form that exceeds 0.025 in. /
0.0635 cm thickness
________ Staples must be used only in margin area of form
________ Staple cuts must not be in the direction of form movement
through the tractors
________ Staples must not occur in-line with the path of the tractor holes
________ Staples should be placed in the margins so that they coincide
with areas of the form where printing will not occur
Cut-To-Tie Ratio
____:____ (Typical ratio is 4:1, or 80% cut to 20% tie)
Thickness Buildup = ________ in. / cm
Specification Inches Millimeters
Hole centerline (CL) to edge of form 0.236 ± 0.028 6.0 ± 0.1
Hole Diameter (Serrations or any
occlusion due to incorrect registration
of multipart forms cannot exceed this
dimension.)
0.156 ± 0.004 4.0 ± 0.1
Distance between centers of two
consecutive holes
0.500 ± 0.002 12.7 ± 0.05
Maximum deviation of holes from their
centerline
0.004 0.1
Maximum deviation of lefthand hole to
adjacent righthand hole (CL to CL)
0.006 0.15
Maximum parallel deviation of lefthand
hole CL to righthand hole CL
0.006 0.15
