Hitachi G 12SA2, Technical Data And Service Manual

Page 1: ...POWER TOOLS TECHNICAL DATA AND SERVICE MANUAL DISC GRINDER G 12SA2 G 13SB2 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos E239 E240 Feb 2001 G MODEL G 12SA2 G 13SB2 ...

Page 2: ...IN SALES PROMOTION 5 7 1 Handling Instructions 5 7 2 Caution on Name Plate 5 7 3 Precautions on Usage 5 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 6 8 1 Disassembly 6 8 2 Reassembly 8 8 3 Lubrication Points and Types of Lubricant 10 8 4 Tightening Torque 10 8 5 Wiring Diagrams 11 8 6 Insulation Tests 12 8 7 No load Current Value 12 9 STANDARD REPAIR TIME UNIT SCHEDULES 13 Appendix Assembly Diagra...

Page 3: ...brushes 4 Compact lightweight and easy to operate 5 Renewed design 3 APPLICATIONS Deburring diecast products and finishing iron bronze aluminum and diecast products Finishing welds and torch cut surfaces Cutting soft steel materials Grooving and cutting concrete and other stone materials 4 SELLING POINTS Prolonged service life of the carbon brushes 1 4 times higher compared to maker B s model 2 2 ...

Page 4: ...vice life of the carbon brushes is prolonged thanks to the adoption of the internally placed carbon brushes and the improved winding specifications Practical test data Comparison of service life of carbon brushes in the continuous rated load test Wear resistance of armature coil Both ends of the armature coil are sealed with heat resistant adhesive in addition to varnish treatment to minimize wear...

Page 5: ... motor Enclosure Type of switch Weight Net main body Gross Type of packing Standard accessories Depressed center wheel 115 mm 4 1 2 1 Side handle 1 Wrench 1 Voltage and power input 10 000 min AC single phase commutator motor Housing Green Tail cover Black Gear cover packing gland Aluminum alloy diecasting Polyamide resin with glassfiber Depressed center wheel 125 mm 5 1 Side handle 1 Wrench 1 Volt...

Page 6: ... 1 4 6 lbs 2 2 4 9 lbs 288 11 5 16 70 2 3 4 125 5 900 540 1 190 11 000 88 150 1 75 3 9 lbs 1 8 4 0 lbs 298 11 3 4 70 2 3 4 1 Depends on market 2 Service life of carbon brushes in the continuous rated load test 3 Weight without cord side handle depressed center wheel wheel nut wheel washer and wheel guard 6 2 Practical Test Data Comparison of temperature rise of stator coil section The graph below ...

Page 7: ...estions for the use of electric power tools and specific precautions 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 Caut...

Page 8: ...14 14 can then be taken out simultaneously with the Gear Cover Ass y 4 4 Packing Gland 28 28 and related parts 5 Remove the four Seal Lock Screws W SP Washer M5 x 16 29 29 6 After removing the three Seal Lock Screws W SP Washer M4 x 10 20 20 the Armature 14 14 can be extracted together with the Bearing Cover 13 13 and related parts 7 Carefully wrap the Armature 14 14 with a soft clean rag to prote...

Page 9: ...osen the four Seal Lock Screws W SP Washer M5 x 16 29 29 and remove the Packing Gland 28 28 together with the Spindle 31 31 and Gear 22 22 from the Gear Cover Ass y 4 4 in a single body 2 When it is necessary to remove the Gear 22 22 from the Spindle 31 31 it is highly recommended that the special repair tools described below are utilized As illustrated in Fig 6 support the angled surface of the G...

Page 10: ... 48 from the Switch Holder 50 49 See Fig 7 4 Pressing the button of the Pushing Button Switch 49 48 in the arrow C direction press the Pushing Button Switch 49 48 in the arrow A direction to remove the Pushing Button Switch 49 48 See Fig 8 8 2 Reassembly Put the parts together in the reverse order of disassembly with the precautions given below 1 Generously lubricate the teeth of Gear 22 22 and Pi...

Page 11: ...ck Screws W SP Washer M4 x 8 23 23 which fix Bearing Cover B 24 24 in place Four Seal Lock Screws W SP Washer M5 x 16 29 29 which fix Packing Gland 28 28 in place 4 When connecting the Earth Terminal 51 50 to the internal wire the middle wire among three of the Noise Suppressor 52 51 strip the insulation sheath on the internal wire by about 6 mm and press connect it together with the Earth Termina...

Page 12: ...nilube No 00 and turbine oil Mixture ratio 1 1 weight ratio 8 4 Tightening Torque Tapping Screws D4 16 16 56 55 58 57 60 59 2 0 0 5 N m 20 5 kgf cm 1 5 0 4 ft lbs Seal Lock Screws W SP Washer M4 20 20 23 23 1 8 0 4 N m 18 4 kgf cm 1 3 0 3 ft lbs Tapping Screw D5 x 25 1 1 2 9 0 5 N m 30 5 kgf cm 2 2 0 4 ft lbs Seal Lock Screw W SP Washer M5 x 16 29 29 3 4 0 7 N m 35 7 kgf cm 2 5 0 5 ft lbs Special ...

Page 13: ... 11 8 5 Wiring Diagrams 1 For European countries and New Zealand 2 For U S A and Canada Cord Cord ...

Page 14: ...tance 7 M Ω or more with DC 500 V Megohm Tester Dielectric strength test AC 4 000 V 1 minute with no abnormalities 220 V 240 V products AC 2 500 V 1 minute 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 1 230 1 7 ...

Page 15: ...all Bearing 6201DDCM Felt Packing Packing Gland Feather Key Spindle Stator Housing Slide Bar Wheel Guard Ass y Carbon Brush x 2 Spring x 2 Pushing Button Switch Cord Armor Tail Cover Cord Gear Cover Ass y Pinion Seal Ring A Washer C Ball Bearing 629T12 Rubber Ring Felt Bearing Cover Armature Dust Seal Ball Bearing 608VVC2 General Assembly G 12SA2 G 13SB2 ...

Page 16: ...DISC GRINDER Model G 12SA2 2000 1 1 15 E1 LIST NO E239 ELECTRIC TOOL PARTS LIST ...

Page 17: ...SHER M4X10 3 21 301 943 LOCK PIN 1 22 308 540 GEAR 1 23 991 207 SEAL LOCK SCREW W SP WASHER M4X8 3 24 936 680 BEARING COVER B 1 25 620 1DD BALL BEARING 6201DDCMPS2L 1 26 308 546 FELT PACKING 1 27 308 547 SEAL PACKING 1 28 308 545 PACKING GLAND 1 29 307 046 SEAL LOCK SCREW W SP WASHER M5X16 4 30 944 109 FEATHER KEY 3X3X8 1 31 994 301 SPINDLE A 1 31 994 302 SPINDLE B 1 FOR USA CAN 32 949 241 MACHINE...

Page 18: ... 273 NOISE SUPPRESSOR 1 EXCEPT FOR USA CAN 53 319 320 FASTON TERMINAL 2 FOR NOISE SUPPRESSOR 54 953 327 CORD ARMOR D8 8 1 55 319 316 TAIL COVER 1 56 307 811 TAPPING SCREW W FLANGE D4X16 BLACK 1 57 500 234Z CORD 1 57 500 439Z CORD 1 FOR NZL 57 500 240Z CORD 1 FOR USA CAN 58 305 095 TAPPING SCREW W FLANGE D4X20 2 59 937 631 CORD CLIP 1 60 984 750 TAPPING SCREW W FLANGE D4X16 2 61 980 063 TERMINAL 2 ...

Page 19: ...S 115MM C P16 10 PCS 1 606 314 096 SANDING DISCS 115MM C P20 10 PCS 1 607 314 097 SANDING DISCS 115MM C P24 10 PCS 1 608 314 098 SANDING DISCS 115MM C P30 10 PCS 1 609 314 099 SANDING DISCS 115MM C P36 10 PCS 1 610 314 100 SANDING DISCS 115MM C P40 10 PCS 1 611 314 101 SANDING DISCS 115MM C P50 10 PCS 1 612 314 102 SANDING DISCS 115MM C P60 10 PCS 1 613 314 103 SANDING DISCS 115MM C P80 10 PCS 1 6...

Page 20: ...DISC GRINDER Model G 13SB2 2000 11 15 E1 LIST NO E240 ELECTRIC TOOL PARTS LIST ...

Page 21: ...REW W SP WASHER M4X10 3 21 301 943 LOCK PIN 1 22 308 540 GEAR 1 23 991 207 SEAL LOCK SCREW W SP WASHER M4X8 3 24 936 680 BEARING COVER B 1 25 620 1DD BALL BEARING 6201DDCMPS2L 1 26 308 546 FELT PACKING 1 27 308 547 SEAL PACKING 1 28 308 545 PACKING GLAND 1 29 307 046 SEAL LOCK SCREW W SP WASHER M5X16 4 30 944 109 FEATHER KEY 3X3X8 1 31 994 301 SPINDLE A 1 32 949 241 MACHINE SCREW M5X20 10 PCS 1 33...

Page 22: ...D4X16 BLACK 1 56 500 234Z CORD 1 CORD ARMOR D8 8 56 500 247Z CORD 1 CORD ARMOR D8 8 FOR NOR SWE DEN 56 500 435Z CORD 1 CORD ARMOR D8 8 FOR GBR 230V 56 500 461Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 56 500 447Z CORD 1 CORD ARMOR D8 8 FOR SUI 56 500 439Z CORD 1 CORD ARMOR D8 8 FOR NZL 57 305 095 TAPPING SCREW W FLANGE D4X20 2 58 937 631 CORD CLIP 1 59 984 750 TAPPING SCREW W FLANGE D4X16 2 60 980 063 ...

Page 23: ...314 068 SANDING DISCS 125MM C P50 10 PCS 1 607 314 070 SANDING DISCS 125MM C P80 10 PCS 1 608 314 072 SANDING DISCS 125MM C P120 10 PCS 1 609 314 062 SANDING DISCS 125MM C P16 10 PCS 1 610 314 063 SANDING DISCS 125MM C P20 10 PCS 1 611 314 066 SANDING DISCS 125MM C P36 10 PCS 1 612 314 067 SANDING DISCS 125MM C P40 10 PCS 1 613 314 069 SANDING DISCS 125MM C P60 10 PCS 1 614 314 071 SANDING DISCS 1...

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