valutazioni - 4, GPA: 4.8 ( )

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If it is, immediately replace the gasket, otherwise the vacuum may not hold the rig securely. To replace the gasket, see "Replacing Vacuum Pad Gaskets" in the "Maintenance" section. See “Accessories" for gasket part number. 1. Position the rig as required for coring the hole. 2. Loosen the four (4) leveling screws until the ends are above the bottom surface of the base. 3. Place the vacuum adapter assembly into the slot in the base. 4. Connect one end of the supplied vacuum hose to the vacuum line coupler on the vacuum base. To do this, pull back the collar on the hose and push the end of the hose onto the coupler until it snaps into place. Connect the other end of the vacuum hose to the coupler on the vacuum pump following the same procedure. 5. The vacuum pump may be set on a dry surface away from the rig or mounted to the base of the Dymorig as shown. To mount the vacuum pump on the base, place the small holes on the vacuum pump mounting bracket over the two tapped holes on the base. Attach the vacuum pump to the base with two (2) 1/4" - 20 screws supplied in the accessory bag. 6. Plug the vacuum pump into the power source - the pump will start automatically. Step on the base until it lowers and adheres to the work surface. 7. Tighten the four (4) leveling screws only enough to eliminate rocking. Over-tightening can lift the gasket off the ground and release the vacuum. WARNING! The vacuum gauge must read a minimum of 20 inches of mercury vacuum. To reduce the risk of injury DO NOT CORE if the gauge reads less than 20 inches of mercury vacuum. page 9 Using the Optional Telescoping Assembly 1. Secure the rig using either an expansion-type anchor or a vacuum system (see "Securing the Equipment to the Work Surface"). 2. Place the top flange of the extension against a ceiling or wall and place the other end on the jack screw at the top of the Dymorig column. The assembly is adjustable up to 14 feet. Turn the jack screw to tighten the assembly and to make small adjustments. Supply an Adequate Water Flow An adequate supply of water must flow freely and constantly during the entire cut. Dymodrills are equipped with a built-in water shut-off valve to allow water to flow down the inside and up around the outside of the bit. This acts to cool the bit and flush cuttings from the hole. Reading the Meter Box (Fig. 16) 20 Amp Operating Range 15 Amp Operating Range Fig. 16 The ammeter is the dial indicator on the meter box, which is standard equipment with the Vac-U-Rig® and can be purchased separately for other Dymorigs. The ammeter provides pressure feedback during coring, allowing you to help prevent motor overload and premature bit wear. The green area on the ammeter is the operating range and the red area indicates that you are applying too much pressure. WARNING! To reduce the risk of injury, always use Dymodrills in conjunction with meter boxes. Meter Boxes provide a switch to turn the Dymodrill motor OFF and ON and an optimum operation range to help ...

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