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JET 814GH#

The 814GH is for cutting metal for stock preparation. This bandsaw has an auto-feed hydraulic for performing the cut, making it ideal for repeated or lengthy cuts.

A bandsaw is a good choice for making quick cuts in thin materials, or for cutting irregular shapes in flat material.

A bandsaw blade tends to be thinner than other options, meaning less material lost to the cut and more control over the cut geometry.

Prerequisites for Use#

Safety Notices#

Note

PLEASE READ ALL SAFETY NOTICES BEFORE CONTINUING

Don't put your hand or fingers near the blade during operation.

Wear short sleeves or roll up long sleeves

Secure loose clothing

Tie up and tuck in long hair

Remove lanyards, jewelry, gloves, etc.

Safety glasses mandatory.

Squaring the Vise to Blade#

  1. To set up for square cutting, move the right jaw to “B” position (Figure 10). Place a machinist’s square on the bed against the blade and the right vise jaw. The square should lie along the entire length of the jaw and blade without a gap.
  2. If adjustment is necessary, slightly loosen the front screw on the right jaw. Loosen the hex nut at the center of the right jaw and adjust jaw so the square lines up properly.
  3. Re-tighten the hex nut and the front screw.
  4. Loosen the handle (C, Figure 10) on the left jaw. Move the left jaw until it contacts flush with the right jaw.
  5. Tighten the handle (C, Figure 10). The vise is now set for square cuts.

Positioning the Vise#

  1. The workpiece is placed against the fixed jaw, which has already been squared (see “Squaring Vise to Blade”), or has been locked at the appropriate angle (see “Miter Cuts”).
  2. The vise has a quick-release feature which allows fast positioning of the movable jaw against the workpiece and then a final tightening with the handle. Lift up on the quick release lever (D, Figure 11), then push the movable jaw by hand until it contacts the workpiece.
  3. Push down the quick release lever (D, Figure 11).
  4. Turn the lead screw handle (E, Figure 11) clockwise to continue the tightening process of the movable jaw until the workpiece is securely clamped. Figure 10 (fixed jaw shown in “A” position for mitering) Figure 11 12
  5. The quick release function can also be used to back off the movable jaw when the cut is finished.

Miter Cuts#

  1. For miter cuts, move the fixed jaw to the inner holes, or “A” position, as shown in Figure 10.
  2. Rotate the fixed jaw to the desired angle, and tighten the center hex nut. NOTE: There is an angle scale on the back side of the bed. This is for reference only. Check angles with a protractor if greater precision is needed.
  3. Adjust the movable jaw in the manner described above, and tighten the handle (C, Figure 10).

In-Person Competency Check#

  1. Give machine an overall inspection. Verify that all guards, covers, etc. are in place and in working order, the blade is tensioned properly and the tooth direction matches the arrow on the bow. Check that the blade guides are set correctly, and also the wire brush.
  2. Place workpiece in vise and tighten vise. The workpiece should be fitted directly between the jaws without adding other objects. When the workpiece to be cut is a profiled section, flat piece or special shape, refer to the examples shown in Figure 23 for proper clamping positions. The top row shows acceptable clamping positions, the bottom row shows unacceptable positions.
    • If the thickness of the profiled section is very thin, a piece which duplicates the profile should be fitted inside the workpiece itself, to prevent the workpiece being crushed between the jaws.
    • Never hold a workpiece by hand when cutting it – the workpiece should be firmly secured in the vise. Do not reach into the cutting area during cutting operations.

  1. Rotate the speed dial to the desired setting. Do not rotate the speed dial during a cutting operation.
  2. Set a suitable downfeed rate for that operation on the cylinder dial.
  3. Push the start button to start the blade circulating.
  4. Turn on the coolant flow.
  5. Open the valve on the hydraulic cylinder to allow the bow to descend in a gradual and controlled manner.
  6. The machine will shut off at the completion of the cut. Turn off the coolant flow, and remove the workpiece.
  7. Return the bow to vertical position for the next cut.