7/11/2005 VERSION 2.0 16
9. GENERAL OPERATING PROCEDURES
9.1. INITIAL SETUP
9.1.1. General
*Knudson Mfg., Inc. strongly recommends sending sample blank material to the factory upon
ordering of the EL-2002. This way the factory will be able to set up the machine to the specific needs
of the buyer. *
The machine has been completely set-up, tested, and adjusted at the factory upon ordering. The machine
should produce a high quality elbow section with only minor or no adjustments depending on material and
material thickness.
* Smooth actuation of the handles will produce a more predictable part time and again and will keep
the internal mechanisms from wearing out rapidly. *
9.1.2. Initial Setup Inspection
A rapid yet thorough inspection should be performed prior to set-up and operation. Perform the following
checks:
• Inspect the machine for any loose fasteners or components.
• Ensure that the proper knife set is in place for the desired elbow.
If the factory set up does not match the intended starting profile, refer to the appropriate part of Section 10
to set up the machine for the desired profile.
9.2. BLANK SIZING
*Many of the lengths given in the following section will vary from machine to machine and with
differing downspout sizes. Different machines may have different crimp-to-angle ratios and
therefore, not as much material will be needed for certain crimps. Experience with the machine and
material will give the operator a better feel for its characteristics and a better idea of how to size
blanks. *
The combination of crimping and advancing takes up one inch of material. The distance from the last crimp
made to the end of the blank (where it makes contact with the advance plate) will be approximately 3.25-in.
The only variable length in the blank is the amount of material after the elbow. This length can be changed
to meet the needs of the situation. To size a blank, add the desired length after the elbow to 3.25-in then
add one inch per crimp to be made. This will produce the length of blank used. The following table
provides recommended blank sizes for making different size and shape elbows. These numbers are
provided as a guideline. Varying the depth of crimp and the position of the side knives will allow for
steeper angles with less crimps, and hence, shorter blank lengths needed.
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