Hitachi DV 20VD Service Manual Download Page 15 | Manualshive

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-14-

Model

Variable

Fixed

10 20 30 40 50

60

min.

DV 22V

DV 20VD

General Assembly

Fan

Guide (B)

Stator

Holder

Armature
Ball Bearing

(607VV)

Ball Bearing

(608DD)

Inner Cover

(A)

Change

Shaft

Second

Pinion

Spindle (A)
Ball Bearing

(6003DD)

Ratchet (D)
Ratchet (C)
Gear Cover

(A) Ass’y

Low Speed

Gear

High Speed

Gear

Shift Lever

Ass’y

Shift Arm

Housing (B)
Stator

Work Flow

Switch
Cord Armor
Cord
Handle

Cover (B)

Handle

Cover (A)

Brush Holder
Brush Cover

STANDARD REPAIR TIME (UNIT) SCHEDULES

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Summary of Contents for DV 20VD

Page 1: ...Model DV 22V Hitachi 20 mm Impact Drill Model DV 20VD DV 22V Overseas Sales Division REPAIR GUIDE 1 1 Precautions on disassembly and reassembly 1 STANDARD REPAIR TIME UNIT SCHEDULES 14 CONTENTS Page LIST Nos DV 22V F431 DV 20VD F430 Jul 2015 ...

Page 2: ...eft Hand M6 x 25 1 At first fully open the chuck jaws and loosen Flat Hd Screw A Left Hand M6 x 25 1 by turning it clockwise 1 Hold the drill so that only the Drill Chuck 3 rests firmly and squarely on the edge of a solid bench Insert a hex bar wrench into the Drill Chuck 3 Turn the Drill Chuck 3 until the wrench is positioned at an angle of about 30 with respect to the bench top and then sharply ...

Page 3: ...sen the Screws D4 x 20 51 and remove Handle Cover B 49 3 Removal of the brush holder 1 Insert the tip of a small flat blade screwdriver into the clearance between Housing B 43 and Click Plate 44 and then pry the arm of the Click Plate 44 off as shown in Fig 4 1 2 Lift up the end of the Spring 47 with a small flat blade screwdriver to release it from the Carbon Brush 46 and hitch it on the Brush Ho...

Page 4: ...e between Housing B 43 and Click Plate 44 and pry the arm of the Click Plate 44 off Small flat blade screwdriver 43 52 Fig 4 2 Removal of the carbon brush Small flat blade screwdriver 46 Lift up the end of the Spring 47 to release it from the Carbon Brush 46 and hitch it on the Brush Holder 52 47 43 52 ...

Page 5: ... A 20 on a cylindrical jig and push down on the top of the pinion of the Armature 35 as shown in Fig 6 8 Disassembly of gear cover A ass y 1 Removal of spindle A Remove the Retaining Ring For D35 Hole 5 Place Gear Cover A Ass y 12 on a cylindrical jig of inside diameter 38 mm or larger and push down on the rear end of Spindle A 4 lightly Remove Spindle A 4 together with Oil Seal A 6 Ball Bearing 6...

Page 6: ...re Fig 7 1 Disassembly of the gear cover section Fig 7 2 Removal of the shift lever ass y Pinion of the armature Push 35 Cylindrical Jig 73 mm in dia 20 4 Push 7 9 12 6 8 Cylindrical Jig 38 mm in dia Push 21 27 Turn 180 12 Clearance ...

Page 7: ...and B 2 Reassembly of gear cover A ass y NOTE Never reuse Ratchet D 8 removed from Spindle A 4 If reused the tightening torque between Ratchet D 8 and Spindle A 4 will be excessively low and Spindle A 4 may run idle in the IMPACT mode 1 Mount the Washer 28 to Ratchet D 8 securely before mounting the Low Speed Gear 29 2 Mount the Shift Arm 31 and High Speed Gear 30 in the specified direction as sho...

Page 8: ...he Low Speed Gear 29 and splined portion of Spindle A 4 Gear teeth and both end surfaces of the Low Speed Gear 29 and High Speed Gear 30 Outer circumference of the Shift Pin 22 and O ring 23 of the Shift Lever Ass y 21 Both end surfaces and inner circumference of the Distance Piece 14 Marked surface of the needle bearing inserted in Inner Cover A 20 and Gear Cover A Ass y 12 Inner circumference of...

Page 9: ...1 2 0 0 5 N m 20 5 kgf cm Hex Socket Hd Bolt W Flange M5 x 45 11 4 9 1 0 N m 50 10 kgf cm Drill Chuck 13VLRB D 3 34 3 0 49 N m 350 50 kgf cm Drill Chuck 13VLRE N 3 Keyless Type 34 3 0 49 N m 350 50 kgf cm Tapping Screw W Flange D4 x 16 60 2 0 0 50 N m 20 5 kgf cm Screw for connecting the Cord 62 to the Switch 55 0 6 0 2 N m 6 2 kgf cm On completion of reassembly after repair measure the insulation...

Page 10: ... switch Noise suppressor Black or brown White or blue Red Black Red Blue White Yellow 3 2 1 4 M2 C2 C1 M1 1Ļ 2Ļ Stator Stator Fig 12 Circuit diagram for the Models DV 22V and DV 20VD without noise suppressor and ferrite core Cord Speed control switch Reversing switch Black or brown White or blue Red Black Red Blue White Yellow 3 2 1 4 M2 C2 C1 M1 1Ļ 2Ļ Stator Stator ...

Page 11: ...tion Cord Armor 58 Ferrite Core 57 Noise Suppressor 61 Switch 55 Stator 38 White internal wire Internal Wire 56 Blue Cord 62 White or blue internal wire Cord 62 Black or brown internal wire Stator 38 Red internal wire Stator 38 Yellow internal wire Internal Wire 56 Red Stator 38 Black internal wire Spring 47 Carbon Brush 46 ...

Page 12: ... diameter Under 8 5 mm Cord diameter 8 5 mm and over Cord Armor 58 Switch 55 Spring 47 Carbon Brush 46 Stator 38 White internal wire Stator 38 Black internal wire Cord 62 White or blue internal wire Cord 62 Black or brown internal wire Internal Wire 56 Blue Stator 38 Red internal wire Stator 38 Yellow internal wire Internal Wire 56 Red ...

Page 13: ...2V and DV 20VD Internal wire blue 1 3 2 4 Stator white Internal wire red Stator black Stator yellow Stator red M2 Cord black or brown 1Ļ Cord white or blue 2Ļ C1 C2 Noise suppressor Wiring of the reversing switch Wiring of the speed control switch ...

Page 14: ...fied destinations are not equipped with the noise suppressor and ferrite core Fit the internal wire in the groove of the handle cover Position the rotational change lever of the switch between the protrusions of the Brush Holder 52 Be careful not to catch the red and yellow internal wires passed under the switch ...

Page 15: ...VV Ball Bearing 608DD Inner Cover A Change Shaft Second Pinion Spindle A Ball Bearing 6003DD Ratchet D Ratchet C Gear Cover A Ass y Low Speed Gear High Speed Gear Shift Lever Ass y Shift Arm Housing B Stator Work Flow Switch Cord Armor Cord Handle Cover B Handle Cover A Brush Holder Brush Cover STANDARD REPAIR TIME UNIT SCHEDULES ...

Page 16: ...NO F431 2015 7 6 E1 52 24 1 2 3 3 4 5 6 7 8 9 10 11 12 13 13 14 15 17 18 19 20 25 26 27 29 31 32 33 34 35 36 37 38 39 40 41 42 43 50 44 46 53 48 49 51 54 55 56 57 58 59 60 61 62 30 21 23 22 28 47 16 45 502 501 508 504 507 506 505 503 ...

Page 17: ...OVER 1 19 338748 CHANGE SHAFT 1 20 338745 INNER COVER A 1 21 338737 SHIFT LEVER ASS Y 1 INCLUD 22 23 22 322848 SHIFT PIN 1 23 878885 O RING S 18 1 24 338770 RATCHET C 1 25 981328 SPRING H 1 26 335299 STEEL BALL D3 5 10 PCS 1 27 323048 RETAINING RING E TYPE FOR D15 SHAFT 1 28 339223 WASHER 1 29 338740 LOW SPEED GEAR 1 30 338741 HIGH SPEED GEAR 1 31 338742 SHIFT ARM 1 32 984104 PIN D5 1 33 LABEL SLI...

Page 18: ... D4 X 16 2 61 997174 NOISE SUPPRESSOR 1 EXCEPT FOR SIN MAL UAE 62 500409Z CORD 1 CORD ARMOR D8 8 62 500505Z CORD 1 CORD ARMOR D8 8 FOR MAL UAE 230V GBR 230V 62 323974 CORD 1 CORD ARMOR D10 1 FOR SIN UAE 110V 62 500461Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 62 500439Z CORD 1 CORD ARMOR D8 8 FOR AUS 62 500408Z CORD 1 CORD ARMOR D8 8 FOR NZL 62 500468Z CORD 1 CORD ARMOR D8 8 FOR CHN DESCRIPTION REMARKS...

Page 19: ...NO F430 2015 7 6 E1 502 24 1 2 3 3 4 5 6 7 8 9 10 11 12 13 13 14 15 17 18 19 20 22 25 26 28 33 34 35 36 37 38 39 40 41 42 43 50 44 46 52 48 49 51 54 56 57 58 59 60 61 62 501 508 55 29 31 32 30 504 507 506 505 503 16 53 47 27 21 23 45 ...

Page 20: ...VER 1 18 338747 CHANGE COVER 1 19 338748 CHANGE SHAFT 1 20 338745 INNER COVER A 1 21 338737 SHIFT LEVER ASS Y 1 INCLUD 22 23 22 322848 SHIFT PIN 1 23 878885 O RING S 18 1 24 338770 RATCHET C 1 25 981328 SPRING H 1 26 335299 STEEL BALL D3 5 10 PCS 1 27 323048 RETAINING RING E TYPE FOR D15 SHAFT 1 28 339223 WASHER 1 29 338740 LOW SPEED GEAR 1 30 338741 HIGH SPEED GEAR 1 31 338742 SHIFT ARM 1 32 9841...

Page 21: ...1 1 59 937631 CORD CLIP 1 60 984750 TAPPING SCREW W FLANGE D4 X 16 2 61 997174 NOISE SUPPRESSOR 1 EXCEPT FOR SIN MAL UAE USA CAN MEX 62 500409Z CORD 1 CORD ARMOR D8 8 62 500434Z CORD 1 CORD ARMOR D8 8 FOR USA CAN MEX 62 500505Z CORD 1 CORD ARMOR D8 8 FOR MAL UAE 230V GBR 230V 62 323974 CORD 1 CORD ARMOR D10 1 FOR SIN UAE 110V 62 500439Z CORD 1 CORD ARMOR D8 8 FOR AUS NZL 62 500461Z CORD 1 CORD ARM...

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