Eastwood 20649 Instructions Manual page 5

A word about Bend Radius: Every gauge and type of sheetmetal
has a minimum Bend Radius. If an attempt is made to bend that
metal sharper than the allowable Bend Radius, it will fatigue and
crack. It is best to consult an online table or a Machinery's Hand-
book for the proper Bend Radius. A good "rule-of-thumb" to employ
is never set the distance of the Knife-edge of the Fingers any less
than 1-1/2 X the thickness of the metal being bent.
• Adjust Pressure Bar for Metal Thickness – The Pressure Bar
needs to raise or lower the attached Fingers as needed to
accommodate the thickness of the selected sheetmetal.
- To adjust, loosen the Locknut on the Cam Arm with a
16mm wrench (not Included) (FIG 4).
- Using a 17mm wrench (not Included) rotate the Hex Rod
Counter-Clockwise to raise the Pressure Bar (for thicker
material) or rotate it Clockwise to lower it (for thinner
material) (FIG 4).
NOTE: Be sure to count the required turns to shorten/length-
en the Hex Rod an equal amount on the opposite side.
- When done, use a feeler gauge (not included)at several
locations between the knife-edge of the Fingers and the
Platen Surface to verify metal gauge adjustments (FIG 5).
NOTE: The proper gap will clamp the Sheetmetal just tight
enough to prevent movement when bending, yet not so tight
as to generate excess effort in the Clamping Handle.
With all the Fingers in place, bends up to 135° can be made in
20 gauge mild steel panels up to 12" wide (#20664) or 24" wide
(#20665). To do so;
• Measure and mark the desired bend line on your sheetmetal
panel.
• Raise the Fingers by rotating the Cam Handle Upward.
• Slide panel under the Fingers lining up your pre-marked bend
line with the lower, beveled edge of the Fingers. Note: the
edge of the Fingers are set back slightly from the edge of
the machined Platen Surface of the main body to allow for
a sufficient bend radius of the metal and the most accurate
bends (FIG 6).
• Rotate the Cam Handle downward to clamp the Fingers
against the sheetmetal panel.
• Grasping both handles of the moveable Bending Bar, lift
upward, bending your panel until the desired bend angle is
achieved (FIG 6).
NOTE: The use of an angle gauge or protractor (not Included)
is recommended.
• Depending on the particular alloy being bent, it may be nec-
essary to rotate the Bending Bar slightly beyond the desired
angle to allow for "springback". Some trial and error is sug-
gested, in scrap material, before making final bends.
To order parts and supplies: 800.345.1178 >> eastwood.com
FIG. 4
FIG. 5
FIG. 6
Handles
Bending
Bar
   " " " "
Platen Surface
Flex Rod
Lock Nut
Cam Arm
Finger
Knife-Edge
Fingers
Platen
Surface
5