DAREX V390 Drill Sharpener 1/8” (3mm) to ¾” (19mm) size range OPERATING INSTRUCTIONS 07/19/04 PP11852KF
The Darex Story Darex Corporation began in 1973 in Beecher, Illinois. The D, A and R of Darex are the initials of three generations of the Bernard family; David, Arthur and Richard Bernard. David and his father Richard founded Darex. Grandfather Arthur Bernard, who earlier founded the Bernard Welding Company contributed his energy and guidance to Darex until his death. Art’s inventions revolutionized the welding industry. In 1978, Darex relocated to Ashland, Oregon.
the operator’s ear is not over 60 dB (A). 18. Risk of injury due to accidental starting. Do not use in an area where children may be present. 19. The weighted root mean square acceleration value to which the arms are subjected to does not exceed 2.5 m/s2 Safety Instructions WARNING: REMEMBER FOR YOUR OWN SAFETY, READ INSTRUCTION MANUAL BEFORE OPERATING TOOL AND SAVE THESE INSTRUCTIONS. Wear Eye Protection. Never touch internal parts of the sharpener GROUNDING INSTRUCTIONS when the sharpener is on.
Material Safety Data Sheet US DEPARTMENT OF LABOR Form Approved Occupational Safety and Health Administration 0MB No 44-Ri 367 MATERIAL SAFETY DATA SHEET Required under USDL Safety & Health Regulations for Ship Repairing, Shipbuilding and Chip breaking 129 CFR 1915, 1916.19171 SECTION I MANUFACTURERS NAME: Darex Industrial Corporation EMERGENCY PHONE NO: (541) 488-2224 ADDRESS: 280 E.
Getting to know your V390 Before you sharpen your first drill bit Please take a few minutes to familiarize yourself with your new DAREX V390 Drill Sharpener and its basic parts and features (shown below). The time it takes to read this page and the remainder of the manual will be made up when you sharpen your first drill bits. Vacuum Port Sharpening Port Wheel Cover Point Angle Bracket Point Split Port Depth Adj.
Drill Information 118º STANDARD POINT: This drill bit point angle is considered a standard general-purpose geometry. It is used for drilling soft or mild materials such as cold rolled steel, aluminum, and wood. Typically the standard drill bit is made of High Speed Steel (HSS). The tip of the drill bit can easily be split making it a high performance drill bit.
QUICK STEP INSTRUCTIONS (Detailed instructions start on page 5) A-1 A SELECT POINT ANGLE 1. Determine angle of your drill bit (A-1) 2. Set point angle from 118 to 140 degrees (A-2). 3. Set relief paddle to +1 for 118 or -1 for 135-degree point angles. These are starting reference values, settings may need adjustment. (A-3) 4. Set material removal knob from 1 to 4. Approximate removal per digit .005 inch.
Quick Step 5. Release the paddle and rotate the drill until the pawls grip inside the flutes. (narrowest width of drill) .(B-5) 6. Make sure drill tip is up against stop, tighten the chuck. Remove from the port. B-5 C SHARPEN DRILL BIT 1. Turn power switch to on. 2. Insert the chuck into the sharpening port with a slight lifting motion. (C-1) 3. Rotate the chuck clockwise in half rotation increments, keeping consistent, slight downward and inward pressure on the chuck.
Darex V390 Detailed Instructions If possible, the first couple of drill bits you sharpen should be about 3/8” in diameter, or a large enough drill bit to see the detail of the point. Study the V390 familiarization diagram on page 2 and the drill information on page 1. Various drill bit facts and drill sharpener nomenclature will be referenced in these sections. STEP 1: Drill angle identification and sharpener set up Pic 1 A. Place the drill in a point angle gauge or mechanic’s protractor.
Detailed Instructions Cont. B. Carefully push the paddle back all the way to the rear and hold it there. (See Picture #6) C. In the bottom of the alignment port is a locating pin, (See Picture #7) and located on the nose of the chuck is a milled slot. (See Picture #8) To insert the chuck into the alignment port, both the pin and slot must be aligned. For easier alignment, a reference line (See Picture #9) has been milled on the O.D.
Detailed Instructions B. Insert the chuck into the sharpening port. While lightly pushing in and down, rotate the chuck clockwise in half rotation increments. (See Picture #14) The chuck will move in and out and the sharpening port will slightly swing during this process. Let the cams on the chuck dictate the natural in and out sharpening motion. NOTE: The sharpening port is swinging due to the cam on the chuck riding against the cam follower bearings. DO NOT LIFT THE CHUCK UP AS YOU ROTATE IT.
Machine Adjustments A. Once the drill is sharpened, do not remove it from the chuck. Align the Point Split Tab Notch, on the chuck, with Point Split Tab on the point split adjustment bracket. Make sure chuck is held inline and square with the point split port. (See Picture # 16 & 17a & 17b) B. Slide the chuck into the grinding wheel for a “one count” pull the chuck of the splitting port , about 1/2 inch and rotate it 180 degrees. Repeat “B”. C.
Split Angle Adjustment: Thumbscrew If the chisel angle of the drill has changed due to the relief ground on the drill, then the point split rotational angle may need to be changed. To adjust the split rotational angle, loosen the thumbscrew, (See Picture #19) located on the point split port. Move the bracket slightly to the left of the alignment detent (See Illustration Pic 19 20) This will increase the split angle that is required if the relief has been increased.
Troubleshooting Q: I aligned the drill bit and sharpened it, but no material gets removed, why ? A: You may have allowed the paddle to knock the drill bit back into the chuck. Carefully realign the drill bit in the alignment port again. Making sure the drill bit is pushed all the way against the drill stop. A: You may not have tightened the chuck tight enough to hold the drill bit in place. When the drill bit hit the wheel it was pushed back into the chuck.
Troubleshooting Q: The chisel edge on my drill bit is too long and flat! A: During the alignment process the pawls were not gripping "ON" the flutes of the drill bit. Re-align the drill bit making sure that the pawls are centered in the flutes. A: Too much heel relief. Realign drill bit toward the minus setting and resharpen. Q: After sharpening, the grind finish on my drill is rough! A: Grind finish is initially rough when sharpened on a new wheel. Drill performance will not be noticeably affected.
DAREX V390 MAINTENANCE Cleaning the DAREX V390 Unplug the Drill Bit Sharpener. Using a dry paintbrush or a cloth, clean the inside and outside of the Alignment, Sharpening and Splitting ports to remove any grindings that may have accumulated. (See Picture #25) The attachment of a vacuum with a standard vacuum hose works well to keep the grit area clean. (See “Vacuum Tube” below) Removing the wheel cover Unplug the Drill Bit Sharpener.
Maintenance Cleaning the electroplated CBN or diamond wheel These wheels are maintenance free. No truing or dressing is required on these type of wheels. However, wheels should be cleaned on a routine basis. After removing the wheel from the unit, saturate with any type of oil-less solvent, such as Automotive Brake Cleaner. If you wish to, you can use a soft bristle brush and lightly brush the wheel after saturation, re-saturate the wheel to remove any debris that was loosened.
1 2 3 3 4 5 6 7 8 9 9 10 11 12 13 13 14 15 16 16 17 17 18 19 20 21 22 23 24 25 26 26 26 DRWG # SA11308TA - PS Depth Screw w/spring Assy. SA11130TA - Grinding Wheel Retainer w/bolt Assy. PP11125GF - CBN Grinding Wheel (Standard) PP11115GF - DIA Grinding Wheel (Optional) SA11335SA - PS Adjustment Brkt Assy. PP11200CF - Wheel Guard Casting SA11610TA - V390 Chuck Complete PP11605TF - V390 Chuck Body SA11612TA - V390 Steel Chuck Knob w/internal Assy.
