Hitachi DC 120VA Technical Data And Service Manual Download | Manualshive

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POWER TOOLS

TECHNICAL DATA

AND

SERVICE MANUAL

DIAMOND CORE DRILL

DC 120VA

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LIST No. 0192

Jun. 2000

D

MODEL

DC 120VA

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Summary of Contents for DC 120VA

Page 1: ...POWER TOOLS TECHNICAL DATA AND SERVICE MANUAL DIAMOND CORE DRILL DC 120VA SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No 0192 Jun 2000 D MODEL DC 120VA ...

Page 2: ...RECAUTIONS IN USAGE 10 8 1 Drilling with Diamond Core Bits 10 Service Section 9 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 12 9 1 Disassembly 12 9 2 Reassembly 14 9 3 Lubrication 16 9 4 Tightening Torque 16 9 5 Internal Wiring 16 10 CONFIRMATION AFTER REASSEMBLY 17 10 1 Insulation Tests 17 10 2 No Load Current Value 17 11 STANDARD REPAIR TIME UNIT SCHEDULES 18 Appendix Assembly Diagram for DC 120VA...

Page 3: ...r powerful drilling 4 Synchronized gear shift mechanism for easy speed switching 5 Easy to use rotary type side handle 6 Vibration isolating handle for reduced operator fatigue 3 APPLICATIONS The Model DC 120VA can drill various workpieces using the appropriate bit or accessory tool Diamond core bit Hitachi Tool Capacity Hole saw for metal Commercial Hole saw for wood Commercial Drill bit for stee...

Page 4: ...able 5 speed dial Fast drilling with 1400 W high power motor 110 V product 1250 W Shown with an optional core bit Vibration isolating handle reduces operator fatigue Synchronized gear shift mechanism for easy speed switching Stable gripping and powerful drilling thanks to long side handle and high slip torque mechanism ...

Page 5: ...rials thanks to the optimum design The drilling speed is about 30 faster than the Model DC 120V and equivalent to C Drilling speed comparison of dry type drills 60 50 40 30 20 10 0 27 65 120 Test conditions Power requirements 230 V 50 Hz Concrete compression strength 2 5 x 105 MPa Test material Concrete reinforced with 10 mm diameter bars drilling depth 150 mm Orientation Horizontal drilling Hitac...

Page 6: ...crease the service life C A friction plate clutch with a belleville spring which is the same as that of 6300T is provided 4 1 4 Synchronized gear shift mechanism for easy speed switching A synchronized gear shift mechanism is provided to permit automatic shifting between the low and high speed ranges just by turning the shift lever This eliminates the need to turn the drill chuck by hand while mak...

Page 7: ...ease of use and increased service life of drill bits The graph below shows the relationship between load and speed 2000 1500 1000 0 0 6 8 10 12 14 Dial No E Dial No D Dial No C Dial No B Dial No A Load current A Number of revolutions of high speed gear min 1 4 1 6 Easy to use rotary type side handle For ease of operation the side handle can be secured in any position over 360 in increments of 45 t...

Page 8: ...oy die casting Type of switch Trigger switch with stopper Type of handle D type handle Full load current 100 V 12 A 230 V 6 4 A 240 V 6 2 A Power consumption 100 V 1250 W 230 V 1400 W 240 V 1400 W Rotation speed No load Low speed gear 400 1000 min No load High speed gear 800 2000 min Full load Low speed gear 400 860 min Full load High speed gear 800 1920 min Full load output 380 W Weight 4 0 kg wi...

Page 9: ...16 78 mm 2 1 16 91 mm 3 37 64 107 mm 4 7 32 117 mm 4 39 64 127 mm 5 152 mm 64 64 300 mm 11 11 16 Length 150 mm 5 29 32 2 Adapter packs extension rods Adapter pack Adapter for dia 38 152 mm 1 1 2 6 core bits Pilot spigot Ejector drift Extension rod length 250 mm 9 27 32 3 Dust extraction range Dust sucker Large Dust sucker Small ...

Page 10: ...5 63 64 13 1 2 30 1 1 2 230 50 Hz 6 4 1400 Low speed 400 1000 High speed 800 2000 Low speed 400 1020 High speed 760 1920 Low speed 450 1050 High speed 850 2000 6 4 4 0 8 8 lbs Low speed 4 High speed 2 1560 Low speed 70 High speed 35 34 Double insulation 86 Chuck wrench 1 Side handle 1 152 5 63 64 13 1 2 30 1 1 2 230 50 Hz 6 4 1400 Low speed 900 2000 High speed 1800 4000 4 2 9 2 lbs Low speed 900 2...

Page 11: ...ely eliminated Accordingly general precautions and suggestions for the use of electric power tools and specific precautions and suggestions for the use of the Diamond Core Drill are listed in the Handling Instructions to enhance the safe efficient use of the tool by the customer Salespersons should ensure that the customer thoroughly reads and understands these precautions with particular attentio...

Page 12: ...he standard values optimum speed of rotation given in Table 1 in the Handling Instructions or engage in continued work for an extended period of time or perform a drilling job on soft materials the motor may be subjected to an unreasonable load and may result in burnout Especially avoid any abnormal use where the drill stops during the drilling work Adjust the number of rotations so that a smooth ...

Page 13: ...ency and or shortened service life of the drill 5 When drilling completely through the material When the drill bit bores completely through the material careless handling often results in broken drill bit or damage to the drill body itself due to the sudden movement of the drill Always be alert and ready to release pushing force when drilling through the material ...

Page 14: ...13 Remove the Armature 28 together with the Inner Cover Ass y 13 from the Housing Ass y 35 2 Remove the Armature 28 from the Inner Cover Ass y 13 Place the Inner Cover Ass y 13 on a cylindrical jig and press down on the pinion of the Armature 28 as shown in Fig 1 3 Loosen the Machine Screw W Washer M3 5 x 6 52 on the trigger switch and the Tapping Screw W SP Washer D5 x 55 8 Disconnect the interna...

Page 15: ...2 Remove the Retaining Ring for D35 Hole 5 Then the Dust Seal 6 can be removed Lightly tap the tip of the Gear Cover 9 with a wooden hammer to remove the Ball Bearing 6003VVCMPS2L 7 3 Support the Clutch 19 on a cylindrical jig and press down on the end surface of the Spindle B Ass y 20 with a hand press as shown in Fig 5 Then Sleeve 17 can be removed from Spindle B Ass y 20 together with the Sprin...

Page 16: ...h the internal wires when mounting the handle Do not pinch the internal wires under the switch Switch Noise suppressor Magnet pick up case Air vent of handle Put the internal wires under the controller Controller Volume ass y Fig 6 CAUTION Insert the Controller 51 so that its uneven surface faces toward the air vent of the handle Do not apply excessive force when closing the cover of the handle Ot...

Page 17: ...t Gear Metal A Steel Ball D3 97 Plate Clutch Ball Bearing 6003VVCMPS2L Clutch Disc Shift Lever Insert the 4 mm diameter protrusion into the groove of the clutch disc Low Speed Gear Spring A Metal B Spring Sleeve Dust Seal Nut Spindle B Ass y Fig 7 CAUTION Mounting directions of the High Speed Gear 25 and the Low Speed Gear 23 are specified Mount these parts in the specified direction as shown in t...

Page 18: ... Ass y 13 and Gear Cover 9 metal portion Inside the Gear Cover 9 70 g CAUTION Be sure to use only DOUBREX 251 grease for the gear cover and the components in the gear cover Use of other grease may cause grease leakage from the tip of the gear cover and the shift lever 9 4 Tightening Torque 1 Nut 4 20 30 N m 200 300 kgf cm 2 Tapping Screw W SP Washer D5 x 55 Black 8 2 5 3 5 N m 25 35 kgf cm 3 Tappi...

Page 19: ... and conduct a dielectric strength test Insulation resistance 7 MΩ or more with DC 500V Megohm Tester Dielectric strength AC 4000V 1 minute with no abnormalities 220 V 240 V and 110V for U K products AC 2500V 1 minute with no abnormalities 110 V 127 V except U K products 10 2 No Load Current Value 110 V 12 A 230 V 6 4 A 240 V 6 2 A ...

Page 20: ...Handle A Handle B Housing Ass y Stator Ass y Gear Cover Nut Dust Seal Ball Bearing 6003VV Sleeve Spring Clutch Spindle B Ass y Spindle A Spring A x 2 Low Speed Gear Clutch Disc High Speed Gear General Assembly Second Pinion Steel Ball Ball Bearing 608VV Inner Cover Ass y Armature Ball Bearing 609VV Dust Seal A Ball Bearing 608VV ...

Page 21: ... 19 Assembly Diagram for DC 120VA ...

Page 22: ...LE A 1 22 318 723 SPRING A 2 23 318 725 LOW SPEED GEAR 1 24 319 115 CLUTCH DISC 1 25 318 724 HIGH SPEED GEAR 1 26 318 727 WASHER A 1 27 609 VVM BALL BEARING 609VVC2PS2L 1 28 360 523 ARMATURE 100V 110V 1 28 360 524E ARMATURE 230V 1 28 360 524F ARMATURE 240V 1 29 318 718 FAN GUIDE 1 30 991 007 TAPPING SCREW D5X60 2 31 340 465C STATOR ASS Y 110V 1 INCLUD 32 31 340 465E STATOR ASS Y 230V 1 INCLUD 32 3...

Page 23: ...3 318 730 SWITCH 1P SCREW TYPE W LOCK 1 54 930 039 NOISE SUPPRESSOR 1 55 980 063 TERMINAL 2 56 937 631 CORD CLIP 1 57 953 327 CORD ARMOR D8 8 1 57 938 051 CORD ARMOR D10 1 1 58 980 063 TERMINAL 2 FOR CORD 58 992 810 TERMINAL 2 FOR CORD 59 500 439Z CORD 1 CORD ARMOR D8 8 FOR AUS 59 500 435Z CORD 1 CORD ARMOR D8 8 FOR GBR 230V 59 500 463Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 59 500 234Z CORD 1 CORD A...

Page 24: ... 22 ALTERNATIVE PARTS STANDARD ACCESSORIES DC 120VA ITEM NO CODE NO DESCRIPTION NO USED REMARKS 501 309 122 SIDE HANDLE 1 3 00 Printed in Japan 000315 N ...

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