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Hitachi Power Tools

1. ALTERNATIVE PARTS Printed in Japan 040420N Q Hitachi Koki Co Ltd
2. 2 1 Stator 700 O 000 1 Red 9 White or blue Choke coil O Reversing switch Speed control switch Fig 15 2 For products without noise suppressor I Cord ass y Stator Blue C 5 1 M2 7 B or blue Reversing switch Speed control switch Fig 16 2 19 8 4 Internal Wire Arrangement and Wiring Work A Internal wire arrangement 1 For products with noise suppressor Natural Noise suppressor CB terminal SIE IM 7 Carbon brush lt O ge N Black Stator A Brown Choke coil LL if White Stator Lag A o AS Blue Choke coil er LI Armature Switch Red Stator Gray Stator Fig 17 90 2 oa c oe Fig 18 B Switch connection 1 Wiring of reversing switch Blue White Choke coil Lead wire Stator Brown Stator Choke Lead wire Fig 19 2 Wiring of speed control switch Black or brown White or blue Stator M1 Gray Stator Noise suppressor Fig 20 8 5 Insulation Tests On completion of reassembly after repair measure the insulation resistance and conduct the dielectric strength test Insulation resistance 7 M or more with DC 500 V megohm tester Dielectric strength AC 4 000 minute wit
3. MODELS DV 20VB2 DV 18V Hitachi Power Tools 20 mm 3 4 IMPACT DRILL DV 20 2 TECHNICAL DATA 18 mm 11 16 IMPACT DRILL d UR LIST Nos DV 20VB2 E475 DV 18V E476 Oct 2004 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT REMARK Throughout this TECHNICAL DATA AND SERVICE MANUAL a symbol s is are used in the place of company name s and model name s of our competitor s Model DV 20VB2 The symbol s utilized here is are as follows Competitors Symbols Utilized Company Name Model Name B BOSCH GSB20 2RE C MAKITA HP2051 H METABO SBE750 Model DV 18V Competitors Symbols Utilized Company Name Model Name B BOSCH GSB18 2RE H METABO SBE660 CONTENTS Page 1 PRODUCT NAME 9 1 2 MARKETING OBJECTIVE iii u nr rues Race ERAN RE elia 1 3 APPLICATIONS icc 1 4 SELLING POINTS 1 4 1 Selling Point Descriptions 2 5 SPECIFICATIONS isi cca EE N E NN TNA UUAA Edadi asra EBONA NENEN anai 3 5 1 ici RE i gs i dua 3 6 COMPARISONS WITH SIMILAR P
4. 984 750 937 631 TAPPING SCREW W FLANGE D4X16 CORD CLIP 953 327 CORD ARMOR D8 8 500 2312 CORD CORD ARMOR 08 8 500 447Z CORD CORD ARMOR D68 8 FOR SYR 500 4682 500 4092 CORD CORD ARMOR 08 8 FOR CORD ARMOR 08 8 FOR INA 500 4232 CORD ARMOR 08 8 FOR KUW SIN 500 4352 CORD ARMOR 08 8 FOR GBR 230V HKG 500 461Z CORD ARMOR D8 8 FOR GBR 110V 500 4392 500 4682 CORD ARMOR 08 8 FOR NZL AUS CORD ARMOR 08 8 FOR 500 4092 mk h h ak AAA sd sk sl N ak CORD ARMOR D68 8 FOR IND ALTERNATIVE PARTS STANDARD ACCESSORIES CODE NO 322 706 DESCRIPTION CASE REMARKS DV 18V 323 050 SIDE HANDLE 303 709 DEPTH GAUGE OPTIONAL ACCESSORIES CODE NO 321 814 DESCRIPTION DRILL CHUCK 13VLRB D INCLUD 602 REMARKS 930 515 CHUCK WRENCH 10G 931 851 DRILL BIT B D6 5X100 931 852 DRILL BIT B D8 0X100 931 853 931 854 DRILL BIT B D9 5X120 DRILL BIT B D10 0X120 971 704 DRILL BIT B D12 0X160 931 855 DRILL BIT B D13 0X160 931 776 DRILL BIT B D14 3X160 971 670 931 856 DRILL BIT B D16 0X160 DRILL BIT B D19 0X160 h mk h mk
5. Spring A ASS y Spring H Shift Arm Gear Set 25 Hitachi Power Tools LIST NO E475 ELECTRIC TOOL PARTS LIST B IMPACT DRILL 2004 4 20 Model DV 20VB2 E1 CODE NO 995 344 DESCRIPTION FLAT HD SCREW A LEFT HAND M6X25 EXCEPT FOR DRILL CHUCK 13VLN DV 20VB2 987 576 CHUCK WRENCH FOR 13VLB D 13VLR D 321 814 DRILL CHUCK 13VLRB D INCLUD 1 2 319 546 DRILL CHUCK 13VLRE N W O CHUCK WRENCH 316 280 322 857 DRILL CHUCK 13VLN W O CHUCK WRENCH SPINDLE B 322 866 SPINDLE A FOR SLIP CLUTCH 939 556 RETAINING RING FOR D35 HOLE 10 PCS 322 851 DUST SEAL 620 2DD 322 850 BALL BEARING 6202DDCMPS2L RATCHET A COIN Q ND 984 101 SPRING e 959 150 STEEL BALL D6 35 10 PCS 322 845 N 316 321 322 869 TAPPING SCREW W FLANGE D5X45 TAPPING SCREW W FLANGE D5X50 BLACK FOR SLIP CLUTCH 322 852 WASHER B 322 858 SECOND PINION AND GEAR SET 322 867 SECOND PINION AND GEAR SET FOR SLIP CLUTCH 322 841 322 842 CHANGE LEVER CHANGE COVER 322 840 CHANGE SHAFT 322 859 INNER COVER B 322 868 INNER COVER A FOR SLIP CLUTCH 322 847 SHIFT LEVER ASS Y SHIFT LEVER INCLUD 20 22 322 848
6. Standard accessories Side handle EIER 1 Depth GAUGE EE EE 1 Chuck wrench spec only for chuck with chuck wrench 1 Plastic carrying CASE 1 Optional accessories Drill bit for concrete 1 For U S A and Canada only 2 Without cord DV 18V Capacities Concrete Low speed 18 mm 11 16 High speed 13 mm 1 2 Steel Low speed 13 mm 1 2 High speed 8 mm 5 16 Wood Low speed 40 mm 1 9 16 High speed 25 mm 1 Drill chuck Mount type UNF 1 2 20 Capacity 13 mm 1 2 Type of motor AC single phase commutator motor Enclosure Housing Glassfiber reinforced polycarbonate elastomer Handle Inner cover Aluminum alloy die casting Gear cover Type of switch Variable speed control trigger switch with reversing switch Power source AC single phase 50 60 Hz Rated voltage 110 V 220 V 230 V 240 V Rated current 110 V 6 6A 220V 3 3A 230 V 3 2A 240 V 3 0 Power input 690 W Cord 2 core cabtire cord 2 5 m 8 3 ft No load speed 0 1000 3000 min Full load impact rate 8000 26000 min Full load output 340 W Weight 2 0 kg 4 4 105 Gross 4 2 kg 9 3 lbs including the case 3 kg 6 6 Ibs excluding the case Packaging Corrugated cardboard box or plastic carrying case Standard accessories Side handle DHT D
7. The performance is greatly improved These two models are developed under the concept for compact lightweight and powerful The main features of the Models DV 20VB2 and DV 18V are as follows 1 Compact and lightweight 2 Class top drilling speed 5 Durable aluminum gear cover and inner cover 2 8 Powerful motor 4 Shortest chuck offset 5 6 6 Two finger sized trigger switch with speed control dial 3 APPLICATIONS 1 Rotation and impacting function Drilling into concrete brick ceramic tile marble granite and other stone materials 2 Rotation only function Drilling into metal wood and plastics 4 SELLING POINTS Compact and lightweight Powerful motor Overall length 333 mm 13 1 8 Power input Weight DV 20VB2 790 W Class top drilling speed DV 20VB2 2 2 kg 4 9 Ibs 120 V 8 3 A for U S A DV 18V 2 0 kg 4 4 lbs DV 18V 690 W 839 mm 13 11 32 with the slip clutch Soft grip handle for increased comfort Shortest chuck offset 23 5 mm 15 16 Push button type forward reverse changeover switch Durable aluminum gear cover and inner cover Slip clutch mechanism Only the Model DV 20VB2 for specific destinations Two finger sized trigger switch with speed control dial 4 1 Selling Point Descriptions 1 Compact and lightweight design for less user f
8. Aluminum Aluminum Aluminum Slip clutch O X X O O Soft grip handle O x x O Speed control dial O x O O Type of reversing switch Push button Lever Brush shift Lever Brush shift Overall length 339 13 11 32 333 13 1 8 340 13 3 8 368 14 31 64 360 14 3 16 356 14 1 64 Chuck offset 23 5 15 16 29 0 1 5 32 27 5 1 3 32 24 5 31 32 30 0 1 3 16 Weight 1 With the slip clutch 2 Depends on the destinations 2 2 4 9 Ibs 2 3 5 1 Ibs 2 3 5 1 Ibs 2 3 5 1 Ibs 2 6 5 7 lbs 600 W class Maker HITACHI B Model DV 18V VTP 18 VTV 18 Reference Concrete mm in 18 11 16 18 11 16 18 11 16 16 5 8 18 11 16 Capacities Steel mm in 13 1 2 13 1 2 13 1 2 13 1 2 18 1 27 Wood mm in 40 1 9 16 30 1 3 16 40 1 9 16 Rated power input W 690 640 640 660 750 Low min 0 1 000 0 1 050 0 1 050 0 1 000 0 1 000 No load speed High min 0 3 000 0 1 800 0 1 800 0 3 000 0 3 000 Low min 0 13 000 0 21 000 0 21 000 0 19 000 0 16 000 No load impact rate High min 0 39 000 0 36 000 0 36 000 0 57 000 0 48 000 Low N m 53 0 27 8 27 8 35 7 30 2 Max torque High N m 19 2 17 2 17 2 11 8 10
9. D15 Shaft 26 26 off upward N CAUTION If the Retaining Ring E type for D15 Shaft 26 26 is pushed excessively the Shift Lever Ass y 19 19 cannot be turned due to a wide clearance D Face the shift pin upward 2 Push Gear Cover A Ass y 25 25 Shift Lever Ass y 19 19 Retaining Ring E type for D15 Shaft 26 26 Clearance Fig 12 8 2 Reassembly can be accomplished by following the disassembly procedures in reverse However special attention should be given to the following items 8 2 1 Internal wire arrangement 1 Arrange the internal wires according to 8 4 Internal Wire Arrangement and Wiring Work 2 Be careful not to catch the internal wires when mounting the handle cover 8 2 2 Lubrication 1 Apply ATTLUB MS No 2 Grease to the following parts e Teeth of the Second Pinion and Gear Set 14 14 the Gear Set 29 lt 29 gt e On the Spindle 4 4 Ground portion for fitting the Ball Bearing 6202DDCMPS2L 7 7 splined portion and hole of rear side e On the Shift Lever Ass y 19 19 Outer circumference portion of the Shift Pin 21 lt 21 gt the O ring 5 22 22 lt 22 gt On the Change Shaft 17 172 Outer circumference portion Lip portion of the Dust Seal 6 6 On Inner Cover 18 lt 18 gt Metal portion Inside of Gear Cover A Ass y 25 lt 25 gt 5 g 2 Apply MOR
10. DRILL BIT B D14 3X160 971 670 DRILL BIT B D16 0X160 931 856 DRILL BIT B D19 0X160 ALTERNATIVE PARTS Printed in Japan 4 04 040420N LIST NO E476 Hitachi Power Tools ELECTRIC TOOL PARTS LIST IMPACT DRILL 2004 4 20 E1 Model DV 18V CODE NO 995 344 DESCRIPTION FLAT HD SCREW A LEFT HAND M6X25 REMARKS DV 18V 987 576 CHUCK WRENCH FOR 13VLB D 13VLR D DRILL CHUCK INCLUD 1 2 SUPPLIED WITH ITEM NO 601 322 357 DRILL CHUCK 13VLRH N W O CHUCK WRENCH 322 857 939 556 SPINDLE B RETAINING RING FOR D35 HOLE 10 PCS 322 851 DUST SEAL 620 2DD BALL BEARING 6202DDCMPS2L 322 850 RATCHET A 984 101 959 150 SPRING A STEEL BALL D6 35 10 PCS 322 845 RATCHET B 316 321 TAPPING SCREW W FLANGE 05 45 322 852 WASHER B 322 858 322 841 SECOND PINION AND GEAR SET CHANGE LEVER 322 842 CHANGE COVER 322 840 CHANGE SHAFT 322 859 INNER COVER B 322 847 SHIFT LEVER ASS Y SHIFT LEVER INCLUD 20 22 322 848 SHIFT PIN 306 353 O RING S 22 981 328 SPRING H 319 535 322 844 STEEL BALL D3 5 10 PCS GEAR COVER A ASS Y INCLUD 11 323 048 RETAINING RING E TYPE FOR D15 SHAFT 322 849 SHIFT ARM 322 860
11. If reused the tightening torque between Ratchet 8 8 and the Spindle 4 lt 4 gt will be far too low and the Spindle 4 4 may run idle in the IMPACT mode Mounting directions of the Shift Arm 27 27 and the Gear Set 29 29 are specified Mount these parts in the specified direction as shown in the above figure 47 With slip clutch Steel Ball D6 35 10 Second Pinion and Gear Set 14 Pin D5 28 Shift Arm 27 Shift Lever Ass y 19 Steel Ball D3 5 24 Washer B 13 Spring H 23 Gear Set 29 Ratchet B 11 Dust Seal 6 Spring A 9 Retaining Ring for D35 Hole 5 Ratchet A 8 Spindle 4 Ball Bearing MES 6202DDCMPS2L 7 Fig 14 N CAUTION Be sure to replace Ratchet A 8 with a new one Never reuse Ratchet A 8 previously removed from the Spindle 4 If reused the tightening torque between Ratchet A 8 and the Spindle 4 will be far too low and the Spindle 4 may run idle in the IMPACT mode Mounting directions of the Shift Arm 27 Gear Set 29 and Spring A 9 are specified Mount these parts in the specified direction as shown in the above figure 18 8 3 Wiring Diagrams 1 For products with noise suppressor Choke coil e Stator Black or brown Brown De n N aray O 1 I i N Cord ass y l Noise suppressor
12. PIN D5 322 846 608 DDM GEAR SET BALL BEARING 608DDC2PS2L 939 553 RETAINING RING FOR D22 HOLE 10 PCS 360 655C ARMATURE 110V 360 655E ARMATURE 220V 230V 360 655F 322 843 ARMATURE 240V FAN GUIDE 981 824 HEX HD TAPPING SCREW 04 45 340 589C STATOR 110V 340 589E STATOR 220V 230V 340 589F 608 VVM STATOR 240V BALL BEARING 608VVC2PS2L 322 861 HOUSING NAME PLATE 301 653 TAPPING SCREW W FLANGE D4X20 BLACK 322 862 322 853 HANDLE COVER PUSHING BUTTON 322 854 SWITCH 1P PILLAR TYPE 321 630 INTERNAL WIRE BROWN 100L FOR SYR THA INA KUW IND SIN HKG 322 517 CHOKE COIL BROWN 220V 240V dad ala da A A dd CCC CC M M N Al la mk ak mk mk FOR ITA ESP GBR 230V NZL AUS 322 518 CHOKE COIL BROWN 110V AUT SAF CHN FOR GBR 110V ALTERNATIVE PARTS CODE NO 999 041 DESCRIPTION CARBON BRUSH 1 PAIR REMARKS DV 18V 955 203 BRUSH HOLDER HITACHI LABEL 994 273 NOISE SUPPRESSOR FOR GBR 230V NZL AUS 992 635 321 631 EARTH TERMINAL INTERNAL WIRE BLUE 55L FOR GBR 230V NZL AUS FOR SYR THA INA KUW IND SIN HKG 321 634 CHOKE COIL BLUE 110V 240V FOR ITA ESP GBR 230V NZL AUS AUT SAF CHN 322 519 CHOKE COIL BLUE 110V FOR GBR 110V
13. for higher speed and counterclockwise for lower speed Fig 4 Pulling the trigger and pushing the stopper it keeps the switched on condition which is convenient for continuous running When switching off the stopper can be disconnected by pulling the trigger again NOTE If the L side of push button is pressed for reverse bit rotation the stopper cannot be used 5 Drilling When drilling start the drill slowly and gradually increasing speed as you drill O Always apply pressure in a straight line with the bit Use enough pressure to keep drilling but do not push hard enough to stall the motor or deflect the bit O To minimize stalling or breaking through the material reduce pressure on drill and ease the bit through the last part of the hole If the drill stalls release the trigger immediately remove the bit from the work and start again Do not click the trigger on and off in an attempt to start a stalled drill This can damage the drill N WARNING The larger the drill bit diameter the larger the reactive force on your arm Be careful not to lose control of the drill because of this reactive force To maintain firm control establish a good foothold use side handle hold the drill tightly with both hands and ensure that the drill is vertical to the material being drilled 6 Slip clutch mechanism Only the Model DV 20VB2 for specific destinations The Model DV 20VB2 only for specific destinations is equipped with t
14. pull out the internal wires Remove the Hex Hd Tapping Screws D4 x 50 35 D4 x 45 34 and tap the end surface of the Housing 38 lt 37 gt slightly with a wooden hammer Then the stator can be removed from the housing 8 1 2 Inner cover ass y disassembly Removal of the change lever Remove the Change Cover 16 16 and the Change Lever 15 lt 15 gt 12 8 1 3 Removal of the drill chuck The Drill Chuck 3 3 is secured to the Spindle 4 4 with 1 2 20 UNF right hand and Flat Hd Screw A Left Hand M6 x 25 1 1 At first open the chuck jaw as far as possible and loosen Flat Hd Screw A Left Hand M6 x 25 1 1 by turning it clockwise a Hold the drill so that only the Drill Chuck 3 3 rests firmly and squarely on the edge of a solid bench Install the hex bar wrench into the drill chuck Turn the drill chuck until the wrench is at about a 30 angle to the bench top and strike the wrench sharply with a hammer so the drill chuck turns in the counterclockwise direction Fig 8 Hex bar EN Flat Hd Screw A b Left Hand M6 x 25 1 1 Fig 8 If the drill chuck cannot be removed by striking the wrench do not strike the wrench forcibly and try another Loosen way as follows b Hold the Spindle 4 4 with the open end wrench secured to the vise as shown in Fig 9 Mount the pipe to the hex bar wrench Turn the hex bar wrench counterclockwise to loosen th
15. 3 No load noise level dB 79 82 82 79 85 Housing structure Cylindrical Cylindrical Cylindrical Cylincrical Clamshell Gear cover material Aluminum Aluminum Aluminum Aluminum Slip clutch x x x O x Soft grip handle X x x O Speed control dial O Type of reversing switch Push button Brush shift Brush shift Overall length mm in 333 13 1 8 340 13 3 8 340 13 3 8 359 14 9 64 346 13 5 8 Chuck offset mm in 23 5 15 16 25 0 1 25 0 1 27 5 1 3 32 30 1 3 16 Weight kg Ibs 2 0 4 4 Ibs 2 3 5 1 Ibs 2 3 5 1 Ibs 2 1 4 6 lbs 2 2 5 1 Ibs 5a 6 2 Drilling Speed Comparisons Drilling speed depends on the operating conditions The test results are based on actual factory tests and should be used as a reference only 700 W class 500 Test condition Mortar panel compression strength 24 N mm Pressing force 300 N 400 MM E o o 8 200 E 100 0 DV 20VB2 DV 20VB B C H HITACHI HITACHI Maker 600 W class 500 Test condition 450 e Mortar panel compression strength 24 N mm Pressing force 300 N 400 c E E o o 8 200 100 0 DV 18V VTP 18 B H HITACHI HITACHI Maker 7 PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models DV 20VB2 and DV 18V Impac
16. 39 and remove the Handle Cover 41 402 2 Removal of the carbon brushes With a small flat blade screwdriver slightly lift the Brush Holders 47 46 Then while pushing the Carbon Brushes 1 Pair 46 45 to the bottom of the brush holders gently pull out and disconnect the internal wire terminals See Figs 5 and 6 Carbon brush Terminal stop piece Carbon brush stop piece Pull out Carbon brush Brush holder Push Fig 5 Fig 6 3 Removal of the gear cover from the housing Loosen the Tapping Screws W Flange D5 x 45 D5 x 50 with clutch 12 lt 12 gt and separate Gear Cover A Ass y 25 25 from the Housing 38 lt 37 gt Then remove the Inner Cover 18 lt 18 gt together with the Armature 33 32 from the Housing 38 lt 37 gt d es 4 Removal of the armature from the inner cover As illustrated in Fig 9 support the Inner Cover 18 18 with a tubular jig and push down on the top of the pinion of the Armature 33 lt 32 gt Push Pinion Inner Cover 18 18 Al L LI j Nin 4 rs i ills 25 7m EE pul ANDA Armature 33 lt 32 gt Fig 7 5 Removal of the stator from the housing First disconnect the internal wires from the Switch 1P Pillar Type 43 42 To disconnect the internal wires from the switch insert a small flat blade screwdriver into the windows near the terminals and
17. ABUARO I 777 1 to the following parts On Gear Cover A Ass y 25 lt 25 gt Teeth of Ratchet B 11 112 Teeth of Ratchet A 8 82 8 2 3 Tightening torque 1 Flat Hd Scerw Left Hand Mex 25 1 1 4 0 to 5 0 39 0 to 47 8 in lbs 2 Tapping Screw W Flange D4 x 20 Black 40 39 1 5 to 2 5 Nm 13 3 to 22 1 in lbs 3 Tapping Screw W Flange D5 x 45 12 lt 12 gt 500006668 2 4 to 3 4 N m 21 3 to 30 1 in lbs 4 Dell Chick T3 edis oen ap mbes 29 4 to 39 2 N m 260 to 347 in lbs 16 8 2 4 Reassembly of the gear cover section Figure 13 shows the assembly drawing Reassemble the gear cover section according to the following figure Steel Ball D6 35 10 10 Second Pinion and Gear Set 14 14 Pin D5 28 28 Shift Arm 27 27 Shift Lever Ass y 19 19 TH LUI 03 5 24 lt 24 gt Washer 13 13 Spring H 23 23 Gear Set 29 29 Ratchet B 11 11 Spring A 9 9 Dust Seal 6 6 Ratchet A 8 8 Retaining Ring for D35 Hole 5 5 Ball Bearing 6202DDCMPS2L 7 7 Spindle 4 4 Fig 13 NCAUTION Be sure to replace Ratchet 8 lt 8 gt with a new one Never reuse Ratchet A 8 8 previously removed from the Spindle 4 4
18. BEL 994 273 NOISE SUPPRESSOR EXCEPT FOR SIN USA CAN 992 635 EARTH TERMINAL EXCEPT FOR SIN USA CAN 321 631 INTERNAL WIRE BLUE 55L FOR SIN USA CAN 321 634 322 519 CHOKE COIL BLUE 110V 240V CHOKE COIL BLUE 110V EXCEPT FOR SIN USA CAN FOR GBR 110V 984 750 TAPPING SCREW W FLANGE D4X16 937 631 CORD CLIP 953 327 CORD ARMOR D8 8 500 4092 500 4232 CORD CORD ARMOR D8 8 CORD ARMOR 08 8 FOR SIN 500 4392 CORD ARMOR 08 8 FOR NZL AUS 500 2472 CORD ARMOR 08 8 FOR NOR FIN 500 240Z CORD ARMOR D8 8 FOR USA 500 461Z 500 435Z CORD ARMOR D8 8 FOR GBR 110V CORD ARMOR D8 8 FOR GBR 230V 500 447Z k ask amp k AlA Al k amp Al AND k amp Al Al ek ek 3 Ny 5 ee ee ae CORD ARMOR D8 8 FOR SUI ALTERNATIVE PARTS STANDARD ACCESSORIES CODE NO 322 706 DESCRIPTION CASE REMARKS DV 20VB2 323 050 SIDE HANDLE 303 709 DEPTH GAUGE OPTIONAL ACCESSORIES CODE NO 931 851 DESCRIPTION DRILL BIT B D6 5X100 REMARKS 931 852 DRILL BIT B D8 0X100 931 853 DRILL BIT B D9 5X120 931 854 DRILL BIT B D10 0X120 971 704 931 855 DRILL BIT B D12 0X160 DRILL BIT B D13 0X160 931 776
19. RODUCTS RE RR Re Ee ARK RR Re u 5 6 1 Specification Comparisons iii 5 6 2 Drilling Speed Comparisons ii 6 7 PRECAUTIONS IN SALES PROMOTION u AR RR REG Ge AR RR RR Rae RE EE 7 1 1 Ee sed ie deli EE u 7 7 2 Cautions Name Plate D 7 7 3 Precautions Usage T 8 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 11 8 1 Disassembly uu 11 8 2 Reassembly iii 16 8 3 Wiring Diagrams ee ee RE PERE A E EAEE Ge ke ee Re ee ee 19 8 4 Internal Wire Arrangement and Wiring Work nene nene 20 8 5 Insulation TES S AE EE 23 8 6 No Load Current ise 23 9 STANDARD REPAIR TIME UNIT SCHEDULES iii 24 Model DV 20VB2 u ti aa ce le haqa d NE i oa pa a 24 Model DV RE ata e pt ab 25 Assembly Diagram for DV 20 2 Assembly Diagram for DV 18V 1 PRODUCT NAME Hitachi 20 mm 3 4 Impact Drill Model DV 20VB2 Hitachi 18 mm 11 16 Impact Drill Model DV 18V 2 MARKETING OBJECTIVE The Models DV 20VB2 and DV 18V are upgraded versions of the current Models DV 20VB DV 20VC DV 20T2 VTP 18 and VTV 18
20. SHIFT PIN 306 353 O RING S 22 981 328 SPRING H 319 535 322 844 STEEL BALL D3 5 10 PCS GEAR COVER A ASS Y INCLUD 11 323 048 RETAINING RING E TYPE FOR D15 SHAFT 322 849 SHIFT ARM 322 860 PIN D5 984 104 322 846 PIN D5 GEAR SET FOR SLIP CLUTCH LABEL FOR SLIP CLUTCH FOR SLIP CLUTCH 608 DDM BALL BEARING 608DDC2PS2L 939 553 RETAINING RING FOR D22 HOLE 10 PCS 360 652C 360 652U ARMATURE 110V ARMATURE ASS Y 120V INCLUD 31 37 360 652E ARMATURE 230V 360 652F ARMATURE 240V 322 843 FAN GUIDE 961 672 340 587C HEX HD TAPPING SCREW D4X50 STATOR 110V 340 587D STATOR 120V 340 587E STATOR 230V 340 587F STATOR 240V 608 VVM 322 861 BALL BEARING 608VVC2PS2L HOUSING ld da sal dl aal ad di i ala A CC Se NASA AA AA Aa Ak mk ALTERNATIVE PARTS PARTS CODE NO DESCRIPTION NAME PLATE REMARKS DV 20VB2 301 653 TAPPING SCREW W FLANGE D4X20 BLACK 322 862 HANDLE COVER 322 853 PUSHING BUTTON 322 854 321 630 SWITCH 1P PILLAR TYPE INTERNAL WIRE BROWN 100L FOR SIN USA CAN 322 517 CHOKE BROWN 220V 240V EXCEPT FOR SIN USA CAN 322 518 CHOKE COIL BROWN 110V FOR GBR 110V 999 041 CARBON BRUSH 1 PAIR 955 203 BRUSH HOLDER HITACHI LA
21. atigue To make the Models DV 20VB2 and DV 18V compact is the first priority at designing Entire length of these models is 333 mm 13 1 8 and the chuck offset is 23 5 mm 15 16 The Model DV 20VB2 weighs 2 2 kg 4 9 Ibs The Model DV 18V weighs 2 0 kg 4 4 Ibs Its ease of operation is the class top level 1 339 mm 13 11 32 with the slip clutch 2 Class top drilling speed Thanks to the powerful motor rated power consumption DV 20VB2 790 W 120 V 8 3 A DV 18V 690 W the Models DV 20VB2 and DV 18V can drill at the class top speed while it is compact and lightweight And powerful motor also provides high performance for heavy duty applications 8 Easy to operate 2 finger sized trigger switch with speed control dial The pulling amount of the trigger can be adjusted on the dial It is convenient for operation keeping at a desired speed The large variable speed control dial and the 2 finger sized trigger switch are easy to operate 4 Reliable and convenient push button type forward reverse changeover switch The Models DV 20VB2 and DV 18V are equipped with the push button type forward reverse changeover Switch that is more convenient and reliable than the lever type switch In addition this switch is properly shaped and located not to make the pushbutton an obstacle at drilling 5 Durable aluminum die casting inner cover and gear cover The Models DV 20VB2 and DV 18V are equipped with the aluminum die casting inner cover an
22. d gear cover for increased durability 6 Slip clutch mechanism Only the Model DV 20VB2 for specific destinations The Model DV 20VB2 for specific destinations is equipped with the slip clutch mechanism to avoid direct and strong reaction force caused by application of a sudden and heavy load by slipping the transmission portion between the motor and the drill bit 5 SPECIFICATIONS 5 1 Specifications Model DV 20VB2 Capacities Concrete Low speed 20 mm 3 4 High speed 13 mm 1 2 Steel Low speed 13 mm 1 2 High speed 8 mm 5 16 Wood Low speed 40 mm 1 9 16 High speed 25 mm 1 Drill chuck Mount type UNF 1 2 20 Capacity 13 mm 1 2 Type of motor AC single phase commutator motor Enclosure Housing Handle Glassfiber reinforced polycarbonate elastomer Inner cover Gear cover Aluminum alloy die casting Type of switch Variable speed control trigger switch with reversing switch Power source AC single phase 50 60 Hz Rated voltage 110 V 120 V 230 V 240 V Rated current 110 V 7 6A 120 V 8 3 A 230 3 6 240V 3 5 Power input 790 W Cord 2 core cabtire cord 2 5 m 8 3 ft No load speed 0 1000 3000 min Full load impact rate 8000 26000 min Full load output 440 W Weight 2 2 kg 4 9 Ibs Gross 4 2 kg 9 3 16 Packaging Plastic carrying case
23. e d emloi These precautions are not listed on the Name Plates of the products destined for the countries other than Oceania China the U S A and Canada 7 3 Precautions on Usage 1 IMPACT to ROTATION changeover Change lever Shift the change lever between the right and left positions to switch easily between IMPACT rotation and impact and ROTATION rotation only respectively To bore holes in hard materials such as concrete stone and tiles shift the change lever to the right hand position as indicated by the T mark The drill bit operates by the combined actions of Fig 1 impact and rotation To bore holes in metal wood and plastic shift the change lever to the left hand position as indicated by the mark The drill bit operates by rotational action only as in the case of conventional elecric drill ZN CAUTION e Do not use the hammer drill in the IMPACT function if the material can be bored by rotation only Such action will not only reduce drill efficiency but may also damage the drill tip Operating the hammer drill with the change lever in mid position may result in damage When switching make sure that you shift the change lever to the correct position NOTE The change lever may not shift smoothly when changing from hammer drill mode to drill mode In this case switch ON and operate the machine for few seconds The spindle shaft will then be pushed forward and the change lever can be
24. e drill chuck Fig 9 Pipe Turn it counterclockwise Hex bar wrench Open end wrench Fig 9 18 For keyed chuck only Secure the drill chuck with a disassembly tool Ring J 78 to the drill chuck which in proper sequence should be secured with a vise Then fit a disassembly tool Wrench Ass y J 140 to the spindle and turn it counterclockwise to loosen the drill chuck Fig 10 Ring ass y and ring J 78 Turn it counterclockwise 8 1 4 Gear cover section disassembly 1 Removal of the spindle Remove the Retaining Ring For D35 Hole 5 5 and the Dust Seal 6 6 Support the tip of the Gear Cover A Ass y 25 25 with a cylindrical jig of inside diameter 35 mm or more and push the rear portion of the Spindle 4 4 lightly Then the spindle can be removed together with the Ball Bearing 6202DDCMPS2L 7 7 and Spring A 9 9 Fig 11 Push Spindle 4 4 Dia 35 min Fig 11 AA 2 Removal of the shift lever Position the Shift Lever Ass y 19 19 as shown in Fig 12 Push both ends of the Retaining Ring E type for D15 Shaft 26 26 with a pair of long nose pliers until a clearance about 1 to 2 mm is made Keeping the clearance turn the Shift Lever Ass y 19 19 by 180 degrees together with the Retaining Ring E type for 015 Shaft 26 lt 26 gt Insert a flat blade screwdriver into the clearance and pry the Retaining Ring E type for
25. epth gauge eene eene eene enne AE Ee GE nnne anota Chuck wrench spec only for chuck with chuck wrench Plastic carrying case provided only for the models specified to include the case Optional accessories Drill bit for concrete 1 Without cord 6 COMPARISONS WITH SIMILAR PRODUCTS 6 1 Specification Comparisons 700 W class Maker HITACHI Model DV 20VB2 DV 20VB H 20 3 4 20 3 4 20 3 4 20 3 4 20 3 4 Capacities Steel 13 1 2 18 1 2 18 1 2 18 1 2 18 1 2 Wood 40 1 9 16 40 1 9 16 40 1 9 16 40 1 9 16 40 1 9 16 Rated power input 790 120 V 8 8 A 750 750 720 120 V 8 2 A 800 0 1 000 0 1 100 0 1 000 0 1 200 0 1 100 No load speed 0 3 000 0 2 600 0 3 000 0 2 900 0 3 000 0 13 000 0 17 600 0 19 000 0 24 000 0 17 600 No load impact rate 0 39 000 0 41 600 0 57 000 0 58 000 0 48 000 54 1 29 5 44 5 torque 19 6 10 7 18 1 No load noise level 79 81 79 81 87 Housing structure Cylindrical Cylindrical Cylindrical Cylindrical Cylindrical Gear cover material Aluminum Plastic
26. h no abnormalities 220 V 240 V and 110 V for U K products AC 2 500 V 1 minute with no abnormalities 110 V 127 V except U K products 8 6 No Load Current Value After no load operation for 30 minutes the no load current value should be as follows Model DV 20VB2 Voltage V 110 120 230 240 Current A Max 3 5 3 2 1 6 1 5 Model DV 18V Voltage V 110 220 230 240 Current A Max 3 5 1 7 1 6 1 5 ug 9 STANDARD REPAIR TIME UNIT SCHEDULES Variable MODEL Fixed 10 20 30 40 50 60 min Work Flow Handle Cover Switch Cord Armor Housing Stator Armature Inner Cover Ball Bearing Second Pinion 608DD and Gear Set Ball Bearing Change Lever 608VV Change Cover Change Shaft Spindle Gear Cover Drill Chuck Ball Bearing A Ass y 6202DD Ratchet B Ratchet A Shift Lever Spring A Ass y Spring H Shift Arm Gear Set 24 Variable MODEL Fixed 10 20 30 40 50 60 min Work Flow r T r Handle Cover Switch Cord Armor Cord Housing Stator T Pr Armature Inner Cover Ball Bearing Second Pinion 608DD and Gear Set Ball Bearing Change Lever 608VV Change Cover Change Shaft General Assembly Spindle B Gear Cover Drill Chuck Ball Bearing A Ass y 6202DD Ratchet B Ratchet A Shift Lever
27. he slip clutch mechanism to avoid direct and strong reaction force caused by application of a sudden and heavy load by slipping the transmission portion between the motor and the drill bit N CAUTION e Turn off the switch immediately if the rotation of the drill bit is stopped by the slip clutch Be careful not to actuate the slip clutch frequently e The spindle shaft torque and the reaction force applied to the side handle when the slip clutch actuates are shown in the table below In the case of the low gear the reaction force applied to the side handle may be 345 1 35 2 kgf at the maximum Instruct the customers to use the side handle without fail and securely hold the Model DV 20VB2 with both hands standing on a good foothold not to be affected by the reaction force Reaction force applied to Spindle shaft torque the side handle N m kgf m N kof Minimum 5 4 0 6 42 6 4 3 High gear Maximum 15 9 1 6 124 9 12 7 Low gear 15 0 15 117 6 12 0 Maximum 44 0 4 5 345 1 35 2 10 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The numbers in the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram The Bold numbers are for the Model DV 20VB2 the Bold numbers for the Model DV 18V 8 1 Disassembly 8 1 1 Motor section disassembly 1 Removal of the handle cover Loosen the Tapping Screws W Flange D4 x 20 Black 40
28. moved smoothly 2 High speed low speed changeover Prior to changing speed ensure that the switch is in the OFF position and the drill has come to a complete stop To change speed rotate the gear shift dial as indicated by the arrow in Fig 2 The numeral 1 engraved on the drill body denotes low speed the numeral 2 denotes high speed If itis hard to turn the gear shift dial turn the chuck slightly in either direction and then turn the gear shift dial again Fig 2 3 Check the rotational direction The bit rotates clockwise viewed from the rear side by pushing the R side of the push button The L side of the push button is pushed to turn the bit counterclockwise The L and R marks are provided on the body A CAUTION Always use the hammer drill with clockwise rotation when using it as an hammer drill L L mark 1 Push button Switch trigger R mark Fig 3 4 Switch operation O When the trigger switch is depressed the tool rotates When the trigger is released the tool stops O The rotational speed of the drill can be controlled by Speed varying the amount that the trigger switch is pulled control dial N 7 N Speed is low when the trigger switch is pulled slightly Low speed A den and increases as the trigger switch is pulled more Speed O The desired rotation speed can be preselected with the Switch speed control dial Turn the speed control dial clockwise trigger
29. t Drills by all of our customers it is very important that at the time of sales the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions and fully understands the meaning of the precautions listed on the Caution Plate attached to each tool 7 1 Handling Instructions Although every effort is made in each step of design manufacture and inspection to provide protection against safety hazards the dangers inherent in the use of any electric power tool cannot be completely eliminated Accordingly general precautions and suggestions for the use of electric power tools and specific precautions and suggestions for the use of the Impact Drill are listed in the Handling Instructions to enhance the safe efficient use of the tool by the customer Salespersons must be thoroughly familiar with the contents of the Handling Instructions to be able to offer appropriate guidance to the customer during sales promotion 7 2 Cautions on Name Plate The following basic safety precautions are listed on the Name Plate attached to the main body of each tool For Australia New Zealand and China CAUTION e Read thoroughly HANDLING INSTRUCTIONS before use For the U S A and Canada WARNING To reduce the risk of injury user must read and understand the instruction manual AVERTISSEMENT Afin de reduire le risque de blessures l utilisateur doit lire et bien comprendre le mod

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