Hitachi DV 14DMR Page 38 Technical Data And Service Manual Download | Manualshive

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11. STANDARD REPAIR TIME (UNIT) SCHEDULES

MODEL

10

20

30

40

Fixed

Variable

Work Flow

Armature and

Pinion Set

Magnet
Brush Block
DC-Speed

Control Switch

Shift Knob

60

50

Gear Box Ass'y

Drill Chuck

(Keyless)

General Assembly

DV 14DMR

DV 18DMR

Hook Ass'y

Front Cap
Nut
Spring
Front Case
Lock Ring
Ring Gear
Carrier
Planet Gear

(C) Set

Rear Case
Shift Arm
Slide Ring Gear
Pinion (C)
Planet Gear

(B) Set

Pinion (B)
Planet Gear

(A) Set

First Ring Gear

Housing (A).(B)

Set

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Summary of Contents for DV 14DMR

Page 1: ...D SERVICE MANUAL CORDLESS IMPACT DRIVER DRILL DV 18DMR DV 14DMR SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos DV 18DMR E485 DV 14DMR E486 Mar 2005 D MODELS DV 18DMR DV 14DMR Hitachi Power Tools ...

Page 2: ... place of company names and model names of our competitors The symbols utilized here are as follows Symbols Utilized Competitors Company Name Model Name RIDGID R841151 P MILWAIKEE 0624 20 0614 20 E DEWALT DC988 DC984 Q BOSCH GSB18VE 2 13618 GSB14 4VE 2 13614 B MAKITA 8443D 8433D C ...

Page 3: ... 1 Model DV 18DMR 14 7 2 Model DV 14DMR 16 8 PRECAUTIONS IN SALES PROMOTION 18 8 1 Safety Instructions 18 8 2 Inherent Drawbacks of Cordless Impact Driver Drills Requiring Particular Attention during Sales Promotion 21 9 REFERENCE MATERIALS 23 9 1 Speed Control Mechanism 23 10 REPAIR GUIDE 24 10 1 Precautions in Disassembly and Reassembly 24 10 2 Precaution in Disassembly and Reassembly of Battery...

Page 4: ...imum torque 62 N m thanks to the optimally designed motor and mechanical unit The Models DV 18DMR and DV 14DMR are improved in performance operability and maintainability thanks to the adoption of the powerful motor with a large radial fan sturdy metal chuck and metal clutch cap soft touch grip widely covered with elastomer angle adjustable one touch hook etc In addition the separate type motor is...

Page 5: ...on case Externally replaceable carbon brushes and separate type motor The carbon brushes and armature are singly replaceable Soft grip handle 13 mm keyless chuck is operable with one hand and equipped with ratcheting lock mechanism Prevents the driver bit from loosening Operable with one hand No 1 torque Max torque 62 N m DV 18DMR 52 N m DV 14DMR No 1 compact Overall lengh 253 mm One touch hook Re...

Page 6: ...pe motor To improve the overload durability in continuous operation the optimally designed cooling air path that is descended from the Model DS 12DM increases the cooling efficiency as well as the large radial fan increases the volume of air See Fig 1 Model Max torque N m Overall length mm Overall height mm Overall width mm Weight kg DV 18DMR 62 253 248 76 2 7 B 54 262 267 87 2 7 P 58 325 264 87 3...

Page 7: ...a click is heard locks the sleeve tight 4 1 5 Soft grip handle The handle is widely covered with soft touch elastomer rubber like soft resin It is slip resistant and securely fits in the palm of a hand even if the gripping hand sweats 4 1 6 One touch hook 1 The hook can be quickly slid out whenever necessary and slid in when not necessary 2 The hook is mountable on either side using a flat blade s...

Page 8: ...h to stand the Model DV 18DMR upright stability The conventional Hitachi 18 V batteries are also usable 4 1 9 Others The Models DV 18DMR and DV 14DMR have the following features common to the previous model The terminal is movable according to the movement of the battery to prevent damage to the contact portion The contact between the housing and the battery is changed from line contact to surface...

Page 9: ... Nominal capacity 2 0 Ah Sealed cylindrical nickel metal hydride storage battery Nominal voltage DC 18 V Nominal life Charging discharging Approx 500 times Nominal capacity 2 6 3 0 Ah Overcharge protection system 1 Battery voltage detection 2 V system for Ni Cd battery Mi MH battery temperature detection dT dt system for Ni MH battery 2 Battery surface temperature detection thermostat or thermisto...

Page 10: ...ng function Charger Model UC 24YJ Weight Standard accessories Main body unit including battery 2 7 kg 6 0 Ibs Charger unit UC 24YFA including cord 0 6 kg 1 3 Ibs Charger unit UC 24YJ including cord 1 0 kg 2 2 Ibs DV 18DMR 2BLFK 2HLFK 6 9 kg 15 2 Ibs DV 18DMR 3BLFK 3HLFK 8 0 kg 17 7 Ibs DV 18DMR 2HLCK 7 6 kg 16 8 Ibs Charger UC 24YFA 1 Battery EB 1820L EB 1826HL 2 Phillips plus driver bit No 2 1 Si...

Page 11: ...charging Approx 1 000 times Nominal capacity 2 0 Ah Sealed cylindrical nickel metal hydride storage battery Nominal voltage DC 14 4 V Nominal life Charging discharging Approx 500 times Nominal capacity 2 6 3 0 Ah Overcharge protection system 1 Battery voltage detection 2 V system Ni MH battery temprature detection dT dt system for Ni MH battery 2 Battery surface temperature detection thermostat or...

Page 12: ...V 14DMR 2BFK 2HFK 6 5 kg 14 3 Ibs DV 14DMR 3BFK 3HFK 7 4 kg 16 3 Ibs Charger UC 14YFA 1 Battery EB 14B EB 1426H EB 1430H 2 Phillips plus driver bit No 2 1 Side handle 1 Case injection type 1 Charger UC 14YFA 1 Battery EB 14B EB 1430H 3 Phillips plus driver bit No 2 1 Side handle 1 Case injection type 1 Net Gross 2BFK 2HFK 3BFK 3HFK ...

Page 13: ...ngle sleeve 13 mm 1 2 Double sleeve 13 mm 1 2 Double sleeve 13 mm 1 2 Max torque hard actually measured value Outer material Metal Plastic sleeve and metal ring Metal Locking device Equipped Equipped Equipped Switch Type Feedback circuit Variable speed Equipped Variable speed Equipped Variable speed Equipped Electric brake Equipped Equipped Equipped Automatic spindle lock Equipped None None Soft g...

Page 14: ... mm 1 2 Max torque hard actually measured value Outer material Metal Plastics Plastics Locking device Equipped Equipped Equipped Switch Type Feedback circuit Variable speed Equipped Variable speed Equipped Variable speed Equipped Electric brake Equipped Equipped Equipped Automatic spindle lock Equipped Equipped Equipped Soft grip handle Side handle Belt hook Equipped None None Handle shape T type ...

Page 15: ...gf cm 664 in lbs 39 N m 400 kgf cm 346 in lbs Not indicated 20 positions Rotation speed Low High 0 400 min 0 1 750 min 0 350 min 0 1 200 min 0 500 min 0 1 700 min Drill chuck Type Capacity Single sleeve 13 mm 1 2 Double sleeve 13 mm 1 2 Single sleeve 13 mm 1 2 Max torque hard actually measured value Outer material Metal Plastic sleeve and metal ring Metal Locking device Equipped Equipped Equipped ...

Page 16: ...x torque hard actually measured value Outer material Metal Plastics Plastics Locking device Equipped Equipped Equipped Switch Type Feedback circuit Variable speed Equipped Variable speed Equipped Variable speed Equipped Electric brake Equipped Equipped Equipped Automatic spindle lock Equipped Equipped Equipped Soft grip handle Side handle Belt hook Equipped None None Handle shape T type Equipped E...

Page 17: ... 50 50 40 30 Low speed 4 4 6 5 7 7 5 0 5 8 5 7 6 6 9 9 7 0 7 5 6 0 6 0 6 5 6 3 6 5 7 8 DV 18DMR HITACHI DV 18DV B U S A B EURO C DV 18DMR HITACHI P E DV 18DV B U S A B EURO Q C Low speed 3 7 4 0 3 4 3 1 3 3 3 3 3 3 3 8 DV 18DMR HITACHI DV 18DV B U S A B EURO C P E Q 180 60 150 90 140 110 120 130 90 130 120 90 110 90 140 100 7 WORKING PERFORMANCE PER SINGLE CHARGE 7 1 Model DV 18DMR Drilling and fa...

Page 18: ... measured values listed in the above table may vary depending on sharpness of the drill bit workpiece hardness particularly in wood materials moisture content of wood charging condition operator skill etc This data should be used as a comparative guide only Type of work Maker Model Working capacity 1 Driling speed sec pc 0 600 1200 1800 2400 3000 B U S A B EURO 690 1050 1030 1050 780 1400 1370 174...

Page 19: ...C High speed 150 80 130 100 100 60 80 5 3 8 8 8 1 7 2 7 7 8 1 9 0 DV 14DMR HITACHI E DV 14DV B U S A B EURO Q C 60 40 60 70 70 70 60 Low speed 5 4 7 0 4 4 4 9 4 6 5 0 6 2 DV 14DMR HITACHI E DV 14DV B U S A B EURO Q C Low speed 90 80 90 90 110 70 80 4 6 5 6 3 4 3 7 3 7 3 9 4 6 DV 14DMR HITACHI E DV 14DV B U S A B EURO Q C 7 2 Model DV 14DMR Drilling and fastening performance comparison per charge ...

Page 20: ...tually measured values listed in the above table may vary depending on sharpness of the drill bit workpiece hardness particularly in wood materials moisture content of wood charging condition operator skill etc This data should be used as a comparative guide only Type of work Maker Model Working capacity 1 Driling speed sec pc 0 600 1200 1800 2400 3000 B U S A B EURO 990 980 790 970 1350 1350 1730...

Page 21: ... use any voltage increasing equipment transformer etc between the power source and the Charger If the Charger is used with voltage higher than that indicated on the unit it will not function properly 4 Conduct battery charging at an ambient temperature range of 0 ûC 40 ûC 32 ûF 104 ûF Special temperature sensitive devices are employed in the Charger to permit rapid charging Ensure that customers a...

Page 22: ...s Ensure that all customers understand that the Storage Batteries should be returned to the Hitachi power tool sales outlet or the authorized service center when they are no longer capable of being recharged or repaired If thrown into a fire the batteries may explode or if discarded indiscriminately leakage of the cadmium compound contained in the battery may cause environmental pollution B Cautio...

Page 23: ...lowing caution is listed on the Name Plate to the Model UC 24YJ Charger For the U S A and Canada CAUTION For safe operation see Instruction Manual Charge HITACHI rechargeable batteries types EB7 EB9 EB12 EB14 series Other types of batteries may burst causing personal injury and damage Charge between 32ûF and 104ûF Rest 15 minutes between the charging of batteries Indoor use only Replace defective ...

Page 24: ... improving the cooling efficiency As a fan is built into the motor a foreign object inserted through a vent hole may cause a failure Please instruct customers to never insert a foreign object into the vent hole 4 Use at thrust of 100 to 150 N 10 to 15 kgf 22 to 23 lbs It would not accelerate the drilling speed of this unit to press the tool strongly against the workpiece as is done with a usual AC...

Page 25: ...leeve of the keyless chuck The keyless chuck may slip during operation if the shape of the drill bit shank is cylindrical depending on the surface conditions materials etc Please instruct the customers to retighten the keyless chuck more securely if the keyless chuck slips during operation The holding force of the keyless chuck is increased as the tightening force of the keyless chuck is increased...

Page 26: ...to 122ûF In such a case the customer should be advised to place the battery in a shaded area with a good airflow and allow sufficient cooling before recharging This phenomenon is common to all existing batteries that employ a thermostat The cooling time required before charging varies from a few minutes to about 30 minutes depending on the load duration of use and ambient temperature 9 REFERENCE M...

Page 27: ...arbon Brush 5 x 6 x 11 5 34 off with a flat blade screwdriver at the position of collars Remove the Brush Caps 35 and the Carbon Brushes 5 x 6 x 11 5 34 at both sides 3 Removal of the Drill Chuck 13VLRL N W O Chuck Wrench 2 Perform the following steps a and b with the main unit mounted in the vise for removal of the Drill Chuck 13VLRL N W O Chuck Wrench 2 At this time it is recommended to sandwich...

Page 28: ...er 30 securely and pull toward the back of the Armature and Pinion Set 31 to remove NOTE Be careful that the ball bearing and the washer behind the Armature and Pinion Set 31 may be attracted to the Magnet 32 and come off the Armature and Pinion Set 31 when removing the Magnet 32 b Removal of the Motor Spacer 30 Remove the Motor Spacer 30 from the Armature and Pinion Set 31 If it is too hard to re...

Page 29: ...9 and Stopper Spring 10 in order 9 Disassembly of the power supply unit Disconnect each internal wire of Brush Block 33 and Terminals 48 50 with a solder iron NOTE Do not remove the fin secured to the DC speed control switch with a screw Projections of Front Case 12 Recess of Switch Plate 5 Projections of switch flange Switch flange Switch Plate 5 Fig 4 ...

Page 30: ...on to the connecting direction of the internal wires and the terminals Internal wire red Internal wire blue 48 Internal wire brown Internal wire black 47 Fig 5 43 33 46 49 50 45 2 Reassembly of the clutch mechanism a Mount the Stopper Spring 10 2 pcs Stopper 9 2 pcs Thrust Washer 8 and Spring 7 to the Front Case 12 in order see Fig 6 NOTE Be careful not to drop the Stopper 9 and the Stopper Spring...

Page 31: ... flush with the Z surface of the Front Case 12 After above step tighten the Nut 6 so that the Nut 6 pushes the Stopper 9 into the Front Case 12 Fig 7 3 Reassembly of the gear unit a Apply grease Hitachi Motor Grease No 29 to the engaging portions of each gear and contacting surfaces with the pin set 6 pcs of the ring gear properly b Mount the parts from the Pin Set 6 pcs 13 to Washer B 29 to the p...

Page 32: ...17 assemble so that recess A on the Lock Ring 15 is aligned with projection B on the Carrier 17 be careful of the direction Then make sure that the flat plane of the spindle faces the flat plane of the Carrier 17 If assembled in wrong direction the flat plane of the spindle may be stopped at the position about 2 mm lower than the flat plane of the Carrier 17 see Figs 10 and 11 NOTE When assembling...

Page 33: ... the Magnet 32 by the strong magnetic force see Fig 13 NOTE Be careful that the ball bearing and the washer at the rear of the Armature and Pinion Set 31 may come off due to the magnetic force of the Magnet 32 Pay attention to the mounting direction of the Ring Gear 16 Slide Ring Gear 23 Pinion C 24 and Pinion B 26 see Fig 8 Mount the Front Case 12 to the Rear Case 20 so that the concave portion o...

Page 34: ... Top view Protrusion 21 Concave portion Side view 42 Groove portion of slide ring gear Indication LOW Fig 15 b Mounting the Shift Arm 21 and the Shift Knob 42 see Fig 15 Mount the Shift Arm 21 to the protruded side of the Rear Case 20 At this time insert the protrusion of the Shift Arm 21 into the hole of the Rear Case 20 and check that the protrusion is inserted into the groove of the Slide Ring ...

Page 35: ...on of Front Cap 4 with the mark i of the Nut 6 The narrow projection of Front Cap 4 is positioned at 1 when viewed from the outside Check that the protrusion of the Click Spring 11 is inserted into the groove inside the Front Cap 4 Fig 17 1 2 3 Fig 16 6 Reassembly of the main unit a Mount the power supply unit and the drive unit that were reassembled in the above procedure to Housing A 38 At this ...

Page 36: ...W O Chuck Wrench 2 Mount the Drill Chuck 13VLRL N W O Chuck Wrench 2 to the spindle and tighten the Special Screw Left Hand M6 x 23 1 8 Mounting the Carbon Brushes 5 x 6 x 11 5 34 Mount the two Carbon Brushes 5 x 6 x 11 5 34 to the Brush Block 33 and secure the two Brush Caps 35 to the Brush Block 33 Check that the claws of the Carbon Brushes 5 x 6 x 11 5 34 are properly inserted into the brush tu...

Page 37: ...94 N m 6 10 kgf cm Brush Cap 35 0 68 0 88 N m 7 9 kgf cm Tapping Screw W Flange D3 x 16 Black 36 1 0 1 6 N m 10 16 kgf cm Special Screw A M5 57 1 47 2 45 N m 15 25 kgf cm 10 2 Precaution in Disassembly and Reassembly of Battery Charger Please refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the Battery Chargers UC 14YFA UC 24YFA and UC 24YJ ...

Page 38: ...lock DC Speed Control Switch Shift Knob 60 50 Gear Box Ass y Drill Chuck Keyless General Assembly DV 14DMR DV 18DMR Hook Ass y Front Cap Nut Spring Front Case Lock Ring Ring Gear Carrier Planet Gear C Set Rear Case Shift Arm Slide Ring Gear Pinion C Planet Gear B Set Pinion B Planet Gear A Set First Ring Gear Housing A B Set ...

Page 39: ... DRIVER DRILL Model DV 18DMR 2005 3 10 E1 Hitachi Power Tools 4 5 6 7 3 2 1 11 12 13 10 9 8 26 27 28 29 30 31 32 33 34 35 36 37 43 58 55 53 52 54 41 40 39 42 52 51 56 57 44 45 14 15 16 17 18 19 20 23 24 25 22 21 38 501 502 503 504 501 46 47 48 49 50 47 46 ...

Page 40: ...20 087 SCREW SET M3X12 4 PCS 4 23 324 069 SLIDE RING GEAR 1 24 324 068 PINION C 1 25 324 070 PLANET GEAR B SET 4 PCS 4 26 324 071 PINION B 1 27 324 073 PLANET GEAR A SET 4 PCS 4 28 324 072 FIRST RING GEAR 1 29 322 988 WASHER B 1 30 322 989 MOTOR SPACER 1 31 360 701 ARMATURE AND PINION SET 1 32 322 996 MAGNET 1 33 322 993 BRUSH BLOCK 1 34 999 054 CARBON BRUSH 5X6X11 5 1 PAIR 2 35 319 918 BRUSH CAP ...

Page 41: ...72 TAPPING SCREW D2X6 2 FOR USA CAN 55 306 952 STRAP BLACK 1 56 319 926 HOOK SPRING 1 57 320 881 SPECIAL SCREW A M5 1 58 322 880 BATTERY EB 1820L W ENGLISH N P 3 58 322 878 BATTERY EB 1826HL W ENGLISH N P 2 58 322 876 BATTERY EB 1830HL W ENGLISH N P 2 58 323 564 BATTERY EB 1830HL W ENGLISH N P 2 FOR USA CAN 501 CHARGER MODEL UC 24YFA 1 501 CHARGER MODEL UC 24YJ 1 502 983 006 DRIVER BIT NO 2 65L 1 ...

Page 42: ... 4 ITEM NO CODE NO DESCRIPTION REMARKS NO USED 3 05 DV 18DMR Printed in Japan 050310N ...

Page 43: ...CT DRIVER DRILL Model DV 14DMR 2005 3 15 E1 Hitachi Power Tools 4 5 6 7 3 2 1 11 12 13 10 9 8 26 27 28 29 30 31 32 33 34 35 36 37 43 58 55 53 52 54 41 40 39 42 52 51 56 57 44 45 14 15 16 17 18 19 20 23 24 25 22 21 38 502 503 504 501 46 47 48 49 50 47 46 ...

Page 44: ...20 087 SCREW SET M3X12 4 PCS 4 23 324 069 SLIDE RING GEAR 1 24 324 068 PINION C 1 25 324 070 PLANET GEAR B SET 4 PCS 4 26 324 071 PINION B 1 27 324 073 PLANET GEAR A SET 4 PCS 4 28 324 072 FIRST RING GEAR 1 29 322 988 WASHER B 1 30 322 989 MOTOR SPACER 1 31 360 721 ARMATURE AND PINION SET 1 32 322 996 MAGNET 1 33 322 993 BRUSH BLOCK 1 34 999 054 CARBON BRUSH 5X6X11 5 1 PAIR 2 35 319 918 BRUSH CAP ...

Page 45: ... USA CAN 54 321 672 TAPPING SCREW D2X6 2 FOR USA CAN 55 306 952 STRAP BLACK 1 56 319 926 HOOK SPRING 1 57 320 881 SPECIAL SCREW A M5 1 58 318 372 BATTERY EB 1430H W ENGLISH N P 2 58 322 883 BATTERY EB 1426H W ENGLISH N P 2 58 315 130 BATTERY EB 14B W ENGLISH N P 3 58 315 129 BATTERY EB 14B W ENGLISH N P 2 FOR USA CAN 501 CHARGER MODEL UC 14YFA 1 502 983 006 DRIVER BIT NO 2 65L 1 503 323 001 SIDE H...

Page 46: ... 4 ITEM NO CODE NO DESCRIPTION REMARKS NO USED 3 05 DV 14DMR Printed in Japan 050315N ...

Page 47: ......

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