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Dake Model Johnson J Saws User Manual

Page 12

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6/02

12

1. Raise frame and close feed cylinder valve to hold frame in elevated position.

2. Loosen the vise nut and open the vise. Place work in vise and slide the vise swivel jaw

against the work piece. Engage the vise nut and tighten the vise screw to clamp the work

securely.

3. Slowly open feed cylinder valve and lower the frame until the blade almost touches the

work. CAUTION: IF BLADE SHOULD REST UPON THE WORK BEFORE MOTOR IS

STARED THE BLADE TEETH CAN BE DAMAGED- IF BLADE IS DROPPED ONTO THE

WORK THE BLADE MIGHT BREAK. MAKE SURE BLADE IS PROPERLY BROKEN IN

PRIOR TO CUTTING.

4. Move the adjustable guide arm as close as possible to the work to provide maximum

blade rigidity.

5. Check the blade tension. Consult blade manufacturer for proper PSI tension.

6. Turn coolant valve on (wet machines only). CAUTION: DO NOT OPERATE MACHINE

WITHOUT SUFFICIENT COOLANT IN TANK. COOLANT MUST BE WATER-SOLUBLE

DO NOT USE OIL.

7. Check blade speed for material you are cutting. Refer to blade manufacturer for proper

speeds for the material you are cutting.

8. To change blade speed, loosen thumbscrew on right end of machine and raise the pulley

guard. Move drive belt to proper grooves in both pulleys for desired blade speed, (see fig. 3).

Replace guard.

9. Start motor.

10. Open feed cylinder valve to the proper setting. “Proper” setting depends upon type of

material, hardness and thickness of stock and desired accuracy and finish. Soft materials

require less feed than hard materials. Thin cross-sections require less feed than solid cross-

sections. Generally, reduced feed pressure will result in a straighter more accurate cut.