Hitachi G 12SA3 Technical Data And Service Manual Download | Manualshive

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ELECTRIC TOOL PARTS LIST

LIST NO. E272

DISC GRINDER
Model G 12SA3

2005

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12

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23

(E1)

Hitachi Power Tools

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Summary of Contents for G 12SA3

Page 1: ...CAL DATA AND SERVICE MANUAL DISC GRINDER G 12SA3 G 13SB3 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos G 12SA3 E272 G 13SB3 E271 Dec 2005 G MODELS G 12SA3 G 13SB3 Hitachi Power Tools ...

Page 2: ...SERVICE MANUAL a symbol s is are used in the place of company name s and model name s of our competitor s The symbol s utilized here is are as follows Symbols Utilized Competitors Company Name Model Name METABO W10 125QUICK B BOSCH GWS10 125C H ...

Page 3: ...in Torque vs Rotation Speed and Stator Coil Temperature Rise 5 7 PRECAUTIONS IN SALES PROMOTION 6 7 1 Handling Instructions 6 7 2 Caution on Name Plate 6 7 3 Precautions on Usage 6 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 7 8 1 Disassembly 7 8 2 Reassembly 10 8 3 Lubrication Points and Types of Lubricant 11 8 4 Tightening Torque 11 8 5 Wiring Diagrams 12 8 6 Insulation Tests 13 8 7 No load Curr...

Page 4: ...ve design which attached great importance to operability Vigorous sales promotion and market share increases are anticipated with the introduction of the new Models G 12SA3 and G 13SB3 The key features of the Models G 12SA3 and G 13SB3 in comparison with the previous models are as follows 1 Increased power input and maximum output 2 Increased overload durability 3 Increased wear resistance of the ...

Page 5: ...r Resistance of Armature Coil Fan side of the armature coil is sealed with protect tape and wedges at commutator side of the armature coil are extended by 4 to 5 5 mm to minimize wear of the armature coil caused by dust The service life of the armature coil is 2 times longer than the conventional models as a result of the gravel suction test gravel is forcibly sucked through the vents of the tail ...

Page 6: ...ories Depressed center wheel 115 mm 4 1 2 1 Side handle 1 Wrench 1 Voltage and power input 110 120 V 10 000 min 230 240 V 11 000 min AC single phase commutator motor Housing Black Tail cover Green Gear cover packing gland Aluminum alloy diecasting Polyamide resin with glassfiber Depressed center wheel 125 mm 5 1 Side handle 1 Wrench 1 Voltage V Current A Power input W 110 230 120 830 1 300 910 8 0...

Page 7: ... pressure level dB Service life of carbon brushes 2 hr Weight 3 kg Actual weight kg Dimensions L mm H mm 6 COMPARISONS WITH SIMILAR PRODUCTS 6 1 Specification Comparisons G 12SA2 G 13SB2 115 125 4 1 2 5 1 020 740 1 430 10 000 84 210 1 9 4 2 lbs 2 1 4 5 lbs 285 11 1 4 70 2 3 4 125 5 1 010 570 1 480 10 000 85 1 8 4 0 lbs 1 9 4 2 lbs 298 11 23 32 75 2 61 64 1 Depends on market 2 Service life of carbo...

Page 8: ...ater torque and a lower stator coil temperature rise at the same torque Fig 4 Comparisons in torque vs rotation speed and stator coil temperature rise Figure 4 indicates 1 The Models G 12SA3 and G 13SB3 keep higher rotation speed than the Models G 12SA2 G 13SB2 H and B in the heavy load range This means that the working efficiency of the Models G 12SA3 and G 13SB3 is superior to the Models G 12SA2...

Page 9: ...tions and suggestions for the use of the disc grinders are listed in the Handling Instructions to enhance the safe and 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 Caution on Name Plate Each tool is provided with a Name Plate which...

Page 10: ...ously with the Gear Cover Ass y 4 4 Packing Gland 25 25 and related parts 5 Remove the four Seal Lock Screws W Sp Washer M5 x 16 26 26 The Packing Gland 25 25 can then be taken out together with the Spindle 28 28 and the Gear 20 20 6 After removing the two Seal Lock Screws W Sp Washer M4 x 10 18 18 the Armature 12 12 can be extracted together with the Bearing Cover 11 11 and the related parts 7 Ca...

Page 11: ...ly 60ûC 140ûF with an appropriate heating device 4 Disassembly of the gear Fig 6 1 Loosen the four Seal Lock Screws W Sp Washer M5 x 16 26 26 fixing the Packing Gland 25 25 and remove the Packing Gland 25 25 from the Gear Cover Ass y 4 4 2 Support the bottom of the Packing Gland 25 25 with a jig and push down on the upper portion of the Spindle 28 28 with a hand press until the end surface of the ...

Page 12: ...emove it keeping the Slide Bar 41 47 raised 6 Removal of the Pushing Button Switch 39 45 1 Loosen the two Tapping Screws W Flange D4 x 45 51 57 and remove the Tail Cover 53 59 2 Turn the Switch Holder 45 51 for the Housing 37 43 in the arrow A direction and remove the Switch Holder 45 51 from the Houisng 37 43 See Fig 7 3 Pressing the Pushing Button Switch 39 45 in the arrow A direction press the ...

Page 13: ...rously lubricate the teeth of the Gear 20 20 and the Pinion 6 6 with grease Rub grease onto the teeth with your fingers so that the grease reaches each tooth bottom Note that under lubricated Gear 20 20 and Pinion 6 6 may wear at a faster rate 4 Only for U K 110 V When connecting the Terminal 46 52 to the internal wire the middle wire among three of the Noise Suppressor 40 46 strip the insulation ...

Page 14: ...ricant Pinion chamber of the Gear Cover Ass y 4 4 Nippeco grease SEP 3A 15 g Generously rub grease onto the gear and the pinion Needle bearing Mixed oil 0 5 cc Mixed oil Mixture of Hitachi power tool grease No 2 Unilube No 00 and turbine oil Mixture ratio 1 1 weight ratio 8 4 Tightening Torque Tapping Screws D4 14 14 51 57 2 0 0 5 N m 20 5 kgf cm 1 5 0 4 ft lbs Seal Lock Screws W Sp Washer M4 18 1...

Page 15: ... 12 8 5 Wiring Diagrams 1 For European countries Australia and New Zealand 2 For the U K 110 V 3 For the U S A and Canada ...

Page 16: ...10 M Ω or more with DC 500 V megohm tester Dielectric strength test AC 4 400 V 3 minutes with no abnormalities 220 V 240 V products AC 3 000 V 3 minutes with no abnormalities 110 V 127 V products 8 7 No load Current Value After no load operation for 30 minutes the no load current value should be as follows Voltage V Current A max 110 3 4 120 3 2 230 2 1 240 2 0 ...

Page 17: ...l Bearing 6201DD Felt Packing Feather Key Spindle Housing Stator Slide Bar Wheel Guard Ass y Carbon Brush x 2 Spring x 2 Pushing Button Switch Cord Armor Tail Cover Cord General Assembly G 12SA3 G 13SB3 Gear Cover Ass y Pinion Seal Ring A Washer C Ball Bearing 629T12DD Rubber Ring Felt Bearing Cover Armature Ass y Dust Seal Ball Bearing 608VV ...

Page 18: ...272 DISC GRINDER Model G 12SA3 2005 12 23 E1 Hitachi Power Tools 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 19 20 21 22 23 24 25 26 27 28 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 51 54 55 52 53 18 29 30 31 501 502 503 504 50 ...

Page 19: ...736 GEAR 1 21 991 207 SEAL LOCK SCREW W SP WASHER M4X8 3 22 936 680 BEARING COVER B 1 23 620 1DD BALL BEARING 6201DDCMPS2L 1 24 308 546 FELT PACKING 1 25 308 545 PACKING GLAND 1 26 307 046 SEAL LOCK SCREW W SP WASHER M5X16 4 27 944 109 FEATHER KEY 3X3X8 1 28 994 301 SPINDLE A 1 28 994 302 SPINDLE B 1 FOR USA CAN 29 949 241 MACHINE SCREW M5X20 10 PCS 1 30 949 454 SPRING WASHER M5 10 PCS 1 31 319 65...

Page 20: ...ORD ARMOR D8 8 1 50 NAME PLATE 1 51 301 815 TAPPING SCREW W FLANGE D4X45 2 52 325 058 HITACHI PLATE 1 53 325 052 TAIL COVER 1 54 500 234Z CORD 1 CORD ARMOR D8 8 54 500 423Z CORD 1 CORD ARMOR D8 8 FOR KUW 54 500 240Z CORD 1 CORD ARMOR D8 8 FOR USA CAN 54 500 435Z CORD 1 CORD ARMOR D8 8 FOR GBR 54 500 439Z CORD 1 CORD ARMOR D8 8 FOR NZL 55 319 320 FASTON TERMINAL 1 FOR NOISE SUPPRESSOR ...

Page 21: ...UT 1 FOR USA CAN 603 314 095 SANDING DISCS 115MM C P16 10 PCS 1 604 314 096 SANDING DISCS 115MM C P20 10 PCS 1 605 314 097 SANDING DISCS 115MM C P24 10 PCS 1 606 314 098 SANDING DISCS 115MM C P30 10 PCS 1 607 314 099 SANDING DISCS 115MM C P36 10 PCS 1 608 314 100 SANDING DISCS 115MM C P40 10 PCS 1 609 314 101 SANDING DISCS 115MM C P50 10 PCS 1 610 314 102 SANDING DISCS 115MM C P60 10 PCS 1 611 314...

Page 22: ...INDER Model G 13SB3 2005 12 23 E1 Hitachi Power Tools 24 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 25 26 27 28 32 33 34 41 42 43 44 47 48 49 50 51 52 53 54 55 59 56 31 17 57 29 30 31 60 61 58 45 46 23 501 502 503 504 ...

Page 23: ...3 22 936 680 BEARING COVER B 1 23 620 1DD BALL BEARING 6201DDCMPS2L 1 24 308 546 FELT PACKING 1 25 308 545 PACKING GLAND 1 26 307 046 SEAL LOCK SCREW W SP WASHER M5X16 4 27 944 109 FEATHER KEY 3X3X8 1 28 994 301 SPINDLE A 1 28 994 302 SPINDLE B 1 FOR USA CAN 29 949 241 MACHINE SCREW M5X20 10 PCS 1 30 949 454 SPRING WASHER M5 10 PCS 1 31 320 192 WHEEL GUARD ASS Y 1 INCLUD 29 30 31 311 742 WHEEL GUA...

Page 24: ...G SCREW W FLANGE D4X16 2 54 937 631 CORD CLIP 1 55 953 327 CORD ARMOR D8 8 1 56 NAME PLATE 1 57 301 815 TAPPING SCREW W FLANGE D4X45 2 58 325 057 HITACHI PLATE 1 EXCEPT FOR FIN DEN SWE NOR 59 325 052 TAIL COVER 1 60 500 234Z CORD 1 CORD ARMOR D8 8 60 500 247Z CORD 1 CORD ARMOR D8 8 FOR FIN DEN SWE NOR 60 500 461Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 60 500 435Z CORD 1 CORD ARMOR D8 8 FOR GBR 230V 6...

Page 25: ...SA CAN 603 314 062 SANDING DISCS 125MM C P16 10 PCS 1 604 314 063 SANDING DISCS 125MM C P20 10 PCS 1 605 314 064 SANDING DISCS 125MM C P24 10 PCS 1 606 314 065 SANDING DISCS 125MM C P30 10 PCS 1 607 314 066 SANDING DISCS 125MM C P36 10 PCS 1 608 314 067 SANDING DISCS 125MM C P40 10 PCS 1 609 314 068 SANDING DISCS 125MM C P50 10 PCS 1 610 314 069 SANDING DISCS 125MM C P60 10 PCS 1 611 314 070 SANDI...

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