Mittler Bros Machine & Tool 2500 - Manual (Page 9)

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3. Move the Pressure Release Handle to the RELEASED position and place the tubing
(which has already been marked with the bend start points) into the Bender Shoe with
the first bend start mark aligned with the START arrow on the Bender Shoe. Slip the
“U” Saddle or Adjustable Saddle over the tubing and the Bender Shoe. Align the
holes and install the pin, if using the adjustable saddle, tighten down the clamp knob.
CAUTION: THE PIN MUST BE COMPLETELY THROUGH BOTH SIDES OF THE “U”
SADDLE! FAILURE TO HAVE PIN COMPLETELY INSTALLED MAY RESULT IN
EQUIPMENT DAMAGE AND / OR PERSONEL INJURY!
4. Align the front edge of the Follow Bar with the START arrow on the Bender Shoe. Be
sure the start mark on the tubing is still lined up with the START arrow as well. Run the
Pressure Roller Adjusting Shaft up to the Follow Bar.
5. PRESSURE ROLLER ADJUSTMENT: Move the Pressure Roller Release Handle into
the BEND position being sure that it locks into place.
6. Start bending by stepping on the foot pedal. Go slowly and stop as soon as all of the
slack in the shoe, follow bar & pressure roller is taken up.
DIGITAL READOUT OPERATION
1. Turn “
ON ” the Digital Readout Assembly.
2. Press the ”in/mm” button so that the “mm” scale is
readable. NOTE: Using the “mm” scale will provide a
one degree of bend readout for each “mm” of indicator
travel, for example, a 45mm reading is equivalent to 45°
of bend.
3. Press the “zero” button when you have taken all of the
slack up (step 6 above) . This will give you an accurate degree reading.
TUBING SPRING BACK
The tubing material, wall thickness and amount of bend angle will all influence the amount
of spring-back that must be allowed for.
It is best to test a sample piece of tubing to determine the “spring-back’ before making
your first bend with the type tubing material, wall thickness, and bend angle. Example:
Make a 90-degree bend (digital readout reading 90-degrees) and remove from the shoe.
Position the bent tube on the flat table top of bender with bent angle pointing up and
measure the angle of the bend. If the bend is 87-degrees, then 3-degrees of spring-back
needs to be included, thus bending to 93-degrees will produce a 90-degree finished bend.
PLEASE CONTACT US IF YOU NEED FURTHER ASSISTANCE.
ON / Zero
Button
Inch / MM
Button