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Congratulations on the purchase of your 

Darex 

XT- 3000

 Step Drill Attachment. (LEX250).  This 

attachment consists of 3 pieces, 1 Sharpening 
Fixture, SA16950BA, 1 Alignment Fixture, 
SA116970XA and a 3mm – 12 mm Chuck, 
SA16975TA. (The 12mm – 21mm Chuck, 
SA16980TA  is available as an optional accessory)  
All 3 components are laser marked with a Step 
Drill icon to minimize confusion with other XT-
3000 attachments.  

SHARPENING THE PILOT 

 

Should the pilot of the step drill need re-
sharpened, do so, just as you sharpen a standard 
twist drill. Having the exploded view drawing 
handy will be beneficial at this point. 
 
 

SHARPENING THE STEP 

 

SETTING UP: 

To sharpen the ‘step’ on your step drill, you will 
have to remove the standard sharpening fixture 
and replace it with the 

X-Y Table 

(LEX100). The 

Step Drill Attachment works together with the X-Y 
Table. 
 
Rotate the 
Docking Lever 
CCW to free the 
standard 
sharpening 
fixture, then 
remove.  Place 
the X-Y Table on 

the XT-3000. Rotate the Docking Lever CW to 
secure the X-Y Table to the XT-3000.  

In a similar manner, lock the Step Drill Sharpening 
Fixture on to the top of the X-Y Table. Secure the 
Step Drill Alignment Fixture to the top of the XT-
3000.  
 

ALIGNING THE DRILL: 

Place the drill in the chuck and tighten chuck by 
rotating the chuck knob CW. Stop just before the 
chuck jaws make contact with the drill. Make sure 
the drill still slides easily through the chuck. Place 
the Chuck in 
the Alignment 
fixture until 
the shoulder 
of the chuck 
stops against 
the 
alignment. 

STEP DRILL ATTACHMENT 

LEX 250 

Pivot Lock Knob 

X-Axis Knob 

Y-Axis Knob 

Содержание XT3000i

Страница 1: ......

Страница 2: ...page 31 Wiring Diagram page 32 Electrical Diagram page 33 Chuck Parts List page 34 Exploded View Chuck page 35 Parts List page 36 Exploded View Machine page 37 Exploded View Sharpening Fixture 118 15...

Страница 3: ...2...

Страница 4: ...have always emphasized innovative product design and tested technology The experienced personnel at our modern manufacturing facility use the latest production methods The Darex marketing team knows f...

Страница 5: ...ns that may affect its operation A guard or other part that is damaged should be properly repaired or replaced NEVER LEAVE TOOL RUNNING UNATTENDED Turn power off USE PROPER EXTENSION CORD Make sure ex...

Страница 6: ...OUTE S OF ENTRY Inhalation Ingestion Skin Eye s EFFECTS OF OVEREXPOSURE INHALATION Difficulty in breathing Dust from wheel use INGESTION If a dust symptoms are variable SKIN Irritation especially if s...

Страница 7: ...iameter 6 45 inch 164 mm Arbor Size 1 25 inch 31 75 mm Wheel Surface Speed 75 ft sec 23m sec for 60 Hz Model 115V 95 ft sec 29m sec for 50 Hz Model 230V Motor Specs hp 2850 rpm 60 Hz Model 115V hp 345...

Страница 8: ...lit Point Split Point Styles Standard X split Point Angles 118 150 Drill Diameter 3 mm 21 mm 118 to 826 Lip Height Accuracy ANSI B94 11 NAS 907 and ISO 10899 Standards Capabilities Performance Decal I...

Страница 9: ...8 XT 3000 Reference Drawing 230V Units Only...

Страница 10: ...and then in to the power outlet source 4 The accessory receptacle is located at the top of the power receptacle and will allow you to use a dust extraction system in conjunction with the use of the X...

Страница 11: ...10...

Страница 12: ...to remove from the end of the drill Stock removal ranges from approximately 010 030 Remove more material if the drill is excessively worn or damaged Remove less material if you are renewing the drill...

Страница 13: ...tate the chuck knob clockwise which closes the chuck jaws onto the drill Then slightly loosen the chuck jaws by rotating the chuck knob counterclockwise about turn To determine how tightly the drill s...

Страница 14: ...grip the drill securely Release the slide handle and remove chuck from alignment tube 6 S L O W L Y squeeze together the red slide handle until it touches casting We emphasize slowly because squeezin...

Страница 15: ...14...

Страница 16: ...e until snug This will secure the fixture to the base Adjusting the Point Angle You must loosen the sharpening fixture and slide the point angle indicator to the desired degree 1 To loosen pull the lo...

Страница 17: ...e cam touching the swing bearing 3 Release sharpening tube very slowly 4 With slight pressure towards the grinding wheel rotate the chuck 360 degrees several times in a clockwise direction To achieve...

Страница 18: ...or damage to the drill or wheel may occur Adjusting the Depth of Split The depth of split can vary from drill manufacturer to drill manufacturer The point split depth adjustment feature designed on t...

Страница 19: ...te the adjuster counter clockwise to decrease the split angle 4 Once split angle adjustment has been made rotate the point split nut clockwise to retain the selected setting and secure the point split...

Страница 20: ...be free from the grasp of the jaws eliminating interference with the larger tapered shank The other option for holding these types of drills is a split bushing Bush the body of the drill up to or lar...

Страница 21: ...SA16500TA 21 30mm Large Drill Chuck SA16975TA 3 12mm Step Drill Chuck SA16980TA 12 21mm Step Drill Chuck SA16890TA 3 12mm 90 Chuck SA16880TA 12 21mm 90 Chuck SA16916TA 3 12mm Brad Point Chuck SA16918...

Страница 22: ...ccur and greatly shorten the wheel life NOTE If after cleaning wheel the drills still discolor or burn the wheel life may be exhausted and the wheel will need to be replaced WHEEL DESCRIPTIONS AND PAR...

Страница 23: ...screws reposition the wheel and tighten the screws Separating grinding wheel from point split wheel The grinding and point split wheel are piggy backed and bolted together To change any one of the wh...

Страница 24: ...s hole 2 Insert a 3 16 Allen wrench into the access hole 3 To advance the pusher shaft cap reducing the amount of drill stick out rotate the wrench clockwise 4 To retract the pusher shaft cap increasi...

Страница 25: ...24...

Страница 26: ...Material Removal After a wheel change verify and or recalibrate material removal Use a 3 8 HSS standard twist drill measure the length of drill before sharpening 1 Rotate material removal knob to maxi...

Страница 27: ...ically the chuck assembly should be disassembled and cleaned 1 Place flats of chuck body into a vice 2 Place chuck wrench on dogs of chuck knob assembly 3 Rotate wrench clockwise to remove chuck knob...

Страница 28: ...out of machine and before replacing wheel vacuum out wheel housing and wipe around the hub area External Machine Castings Wipe down external machine castings with a mild household cleaner Grit Tray V...

Страница 29: ...28...

Страница 30: ...icular chuck Drill flutes are damaged or have burrs Chuck needs to be cleaned Symptom Drill incorrectly split Cause Check settings on the split point fixture Did not align correctly Point Split Tube c...

Страница 31: ...30...

Страница 32: ...DIAGRAM CENTER OF SPLIT DIAGRAM POINT SPLIT ANGLE DIAGRAM FACET DIAGRAM re sharpen on the XPS16 RELIEF DIAGRAM DRILL NOMENCLATURE Drill Nomenclature CLEARANCE Past Center To Center Below Center over...

Страница 33: ...32 Wiring Diagram...

Страница 34: ...33 Electrical Diagram...

Страница 35: ...W SPRINGS 3 SA12565RA 5 EA CHUCK JAW SPRINGS 4 PP16440FF CHUCK JAW KEY SCREW 4 PP16440FF CHUCK JAW KEY SCREW 5 PP16535TF CHUCK JAW GUIDE 5 PP16430TF CHUCK JAW GUIDE 6 PP16540LF CHUCK JAW RACE 6 PP1647...

Страница 36: ...35 10 PP02404SF THRUST WASHER 11 PP16918TF CHUCK CAM 12 PP16410TF CHUCK KNOB REVISED 03 10 03 Exploded View Chuck...

Страница 37: ...NT TUBE LOCK BOLT 19 PP16250TF ALIGNMENT TUBE NUT 78 PP16062GF DIAMOND POINT SPLIT GRINDING WHEEL 260 GRIT 18 PP16200CF ALIGNMENT CASTING 78 PP16060GF CBN POINT SPLIT GRINDING WHEEL 100 GRIT 17 SA1627...

Страница 38: ...37 EXPLODED VIEW MACHINE...

Страница 39: ...38 EXPLODED VIEW SHARPENING FIXTURE 118 150...

Страница 40: ...39 EXPLODED VIEW ALIGNMENT ASSEMBLY...

Страница 41: ...Lock the fixture by returning the red lever to its original position The alignment is adjusted by rotating the black lever located at on the front of the alignment fixture As per the decal rotating th...

Страница 42: ...ht pressure into the wheel It is also necessary to keep the cam up against the swing cam follower bearing Try to sharpen the drill in such a manner that the drill is off the wheel before you repositio...

Страница 43: ...43 Large Drill Attachment...

Страница 44: ...P16652TF Feed Bearing Bolt PP08560LF Bearing SA16657TA Swing Bearing Assembly PP16655LF Swing Bearing PP16657TF Swing Bearing Bolt SA16645TA Spring Tensioner Assembly PP16645TF Spring Tensioner PP1228...

Страница 45: ...45 XY Table Attachment X Y Table No Sub Assemblies Send in for Repair...

Страница 46: ...46...

Страница 47: ...unscrew the Draw Tube assembly Place the correct collet in the end of the Draw Tube and replace the Draw Tube assembly and tighten 3 or 4 revolutions Should you need a collet size other than the ones...

Страница 48: ...nobs carefully position the cutter into the grinding wheel Once the tool touches the grind wheel begin to rotate the spindle in a clockwise direction slowly feeding the cutter into the wheel Once the...

Страница 49: ...49 Countersink Attachment...

Страница 50: ...820BF Alignment Arm PP16312FF 1 8 x2 Dowel pin PP08558FF Washer SA16860BA Swing Arm Assembly PP16860BF Swing Arm PP06136FF Dowel Pin PP08560LF Bearing SA16830TA PP16830TF Indexing Pin Bushing PP08041T...

Страница 51: ...t of the drill happens in the XT 3000 Alignment Loosen the Timing Tube Lock lever and position the Tube 118 Push the lever down to lock the tube Align the drill as you normally would SETTING UP THE X...

Страница 52: ...52 Brad Point Attachment Brad Point Attachment LEX200 SA11790PA PP11745FF 1 4 20 x 1 SSS PP11790PF Point angle lock knob PP16652TF Feed Bearing Bolt PP08560LF Feed Bearing SA16652TA...

Страница 53: ...ave to remove the standard sharpening fixture and replace it with the X Y Table LEX100 The Step Drill Attachment works together with the X Y Table Rotate the Docking Lever CCW to free the standard sha...

Страница 54: ...BLE Utilizing the X Y Table the angle ground into the step portion of the drill can be 90 180 Loosen the Pivot Lock Knob and slide table to the desired angle Tighten the knob With the XT 3000 OFF Slid...

Страница 55: ...55 Step Drill Attachment...

Страница 56: ...Pin PP03415TF Pawl Guide Pin PP03412BF Pawl Step Drill 3mm 12mm Chuck SA16975TA PP16400TF 3 12mm Body PP16975TF Step Drill 3 12mm Cam PP16410TF 3 12mm knob PP16415TF 3 12mm closing sleeve PP16420TF 3...

Страница 57: ...d Pivot Lock Lever to its original position Use the XT 3000 alignment to align the drill in the same manner that you are accustomed to The Alignment tube should be positioned at the 118 mark With the...

Страница 58: ...58 90 120 Sharpening Attachment...

Страница 59: ...PP16655LF Swing Bearing PP16657TF Swing Bearing Bolt SA16645TA Spring Tensioner Assembly PP16645TF Spring Tensioner PP12280FF M6 x 1 x 8mm SSS SA16890TA PP16400TF 3 12mm body PP16890TF 90 3 12 mm Cam...

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