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User manual Milwaukee, model 4004 20A

Manafacture: Milwaukee
File size: 2.96 mb
File name: 58-14-3005d9.pdf
Language of manual:enesfr
Free link for this manual available at the bottom of the page



manual abstract


To reduce the risk of injury, do not operate the Dymorig if the gauge reads less than 20 inches of mercury vacuum. WARNING! 6. Turn the Dymodrill motor ON. Turn the water on so it flows freely through the water shut-off valve (see "Supply an Adequate Water Flow"). Turn the valve clockwise to increase water flow and counterclockwise to decrease water flow. 7. While holding the handle, slightly loosen the cradle lock handle and slowly rotate the handle to lower the bit into the workpiece, applying steady, even pressure. To help reduce bit wandering, always use a light load to start the hole and wait for the tip of the bit to penetrate the work surface completely before increasing the load. 8. Use sufficient pressure so the bit cuts constantly. Use the ammeter on the meter box as a guide for proper pressure. NOTE: If the rig shifts during coring, stop the motor, reposition the rig and resume coring. 9. Monitor the water flow (see "Diamond Coring"). Generally, water should flow at a rate of approximately one to two gallons per minute. If the water flow is too heavy, the two holes in the water swivel housing will leak. If that happens, reduce water flow. Water flow is adequate when the water and cuttings are flushed in a circular pattern about 1/2" around the bit. Keep the work area dry. 10. When the cut is complete, keep the drill motor ON and rotate the handle clockwise to remove the bit. The bit may become stuck in the hole if you turn the motor OFF before the bit is completely removed. Once the bit is removed from the work surface, turn the motor OFF. Tighten the cradle lock handle. Unplug the meter box from the power supply before removing the vacuum pump to prevent accidental starting of the motor when the vacuum pump is released. If you are using a vacuum pump, unplug it and open the vacuum release valve to release the vacuum. When coring holes that are longer than the core bit, follow the steps below. 1. Begin coring the hole as usual. When you have cored to the length of the bit, stop the Dymodrill motor. 2. Remove the core by driving a chisel or slender wedge into the cut between the core and the work surface. You may also use a special core tongs, bent wire or anchor bolts to remove the core. 3. After removing the core, reinsert the bit or use a bit extension and continue coring (see "Accessories"). Removing cores with diameters greater than twice their length can be difficult. One method to remove such cores is to first break the core into smaller pieces and then remove the pieces. Electric hammers and chisels are ideal for breaking cores. WARNING! When coring through floors, cores generally drop from the bit. To reduce the risk of injury, provide proper protection for people and property below the coring area. Diamond Coring Factors that influence diamond core performance: • Amount of coolant • Dymorig rigidity • Dymorig condition • RPM of drill motor • Feed pressure applied to bit by operator • Amount of steel • Size of embedded steel • ...

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