G 10SD2, G 12S2, G 13SD - hitachi
Contents
1. 4 ALTERNATIVE PARTS Printed in Japan 3 01 010330N Hitachi Koki Co Ltd Tokyo Japan2. 7 7 PRECAUTIONS IN SALES PROMOTION 9 7 1 Handling Instructions 9 7 2 Caution on Name Plate o TEASER Oe See ea CORES ZEP Od DE 9 7 3 Precautions on Usage OPTY 10 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 11 8 1 Disassembly I ac 11 8 2 Heassembly iin 12 8 3 Lubrication Points and Types of Lubricant e I 14 8 4 Tightening Torque 14 8 5 Wiring Diagrams 15 8 6 Insulation Tests 16 8 7 No Load Current Value EE 16 9 STANDARD REPAIR TIME UNIT SCHEDULES X D 17 Assembly Diagram for G 10SD2 Q 18 Assembly Diagram for G 1252 IAA 22 Assembly Diagram for G 13SD Die it venin 26 1 PRODUCT NAME Hitachi Disc Grind
3. MODEL G 10SD2 G 12S2 G 13SD HITACHI POWER TOOLS TECHNICAL DATA DISC GRINDERS pa 10SD2 G 1252 G 13SD SERVICE MANUAL LIST Nos G 10SD2 E234 Sep 2001 1252 E235 13SD 236 REVISED SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT REMARK Throughout this TECHNICAL DATA AND 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 G 10SD1 Competitor Symbol Utilized Company Name Model Name MAKITA 9526NB G 1252 Competitors Symbols Utilized Company Name Model Name BOSCH GWS7 115 MAKITA 9527NB 13SD Competitor Symbol Utilized Company Name Model Name MAKITA 9528NB CONTENTS Business Section Page 1 PRODUCT NAME GEORGA ARA a 1 2 MARKETING OBJECTIVE ROIO 1 3 APPLICATIONS EEE 1 4 SELLING POINTS 1 5 SPECIFICATIONS 3 6 COMPARISONS WITH SIMILAR PRODUCTS OOO 4 6 1 Specification Comparisons 4 6 2 Comparisons in Torque vs Rotation Speed and Stator Coil Temperature
4. D C WHEELS 125MM A36Q 25 PCS 994 324 WHEEL NUT M14 316 436 GEAR ASS Y 314 428 SLIDE KNOB 317 802 HOUSING i INCLUD 6 17 37 NAME PLATE 38 995 662 RUBBER RING 39 HITACHI LABEL 40 999 088 CARBON BRUSH 1 PAIR 41 317 810 BRUSH HOLDER 42 308 536 SPRING 43 317 806 SLIDE BAR 44 314 429 SPRING 45 980 778 SLIDE SWITCH 2P PILLAR TYPE 46 984 750 TAPPING SCREW W FLANGE D4X16 47 314 854 EARTH TERMINAL 1 FOR NOISE SUPPRESSOR EK ALTERNATIVE PARTS 5 13SD CODE NO DESCRIPTION ER 994 273 NOISE SUPPRESSOR EXCEPT FOR INA HKG 981 373 TUBE D FOR NOISE SUPPRESSOR 953 327 CORD ARMOR D8 8 317 808 TAIL COVER 307 811 TAPPING SCREW W FLANGE D4X16 BLACK 500 4092 500 2372 500 4392 ARMOR 08 8 ARMOR 08 8 FOR HKG GBR ARMOR D8 8 FOR AUS 500 455Z CORD ARMOR D8 8 FOR CHN 500 4472 CORD ARMOR 08 8 FOR SUI 317 811 SWITCH HOLDER 937 631 CORD CLIP 981 373 TUBE D FOR CORD 3 01 ALTERNATIVE PARTS 3 STANDARD ACCESSORIES G 13SD Na CODE NO DESCRIPTION ford 938 3322 WRENCH 302 142 SIDE HANDLE OPTIONAL ACCESSORIES W cone amem ee o 310 338 SUPER WASHER 994 309 HANDLE JOINT
5. FOR NOISE SUPPRESSOR 307 811 TAPPING SCREW W FLANGE D4X16 BLACK 500 4097 CORD 500 2372 CORD 500 4397 CORD 500 4472 CORD 500 2407 CORD 317 811 SWITCH HOLDER 937 631 CORD CLIP 981 373 TUBE D FOR CORD CORD ARMOR 08 8 CORD ARMOR D8 8 FOR GBR CORD ARMOR D8 8 FOR AUS CORD ARMOR D8 8 FOR SYR SUI ARMOR D8 8 FOR USA CAN 8 01 ALTERNATIVE PARTS 3 STANDARD ACCESSORIES G 1252 No CODE NO DESCRIPTION Ka 938 332Z WRENCH 302 142 SIDE HANDLE 302 739 SIDE HANDLE C FOR USA CAN OPTIONAL ACCESSORIES eono omme mme i 937 8252 RUBBER PAD 938 317 RUBBER PAD FOR USA CAN i 937 826Z WASHER NUT 938 318 WASHER NUT FOR USA CAN 310 338 SUPER WASHER EXCEPT FOR USA CAN 314 095 SANDING DISCS 115MM C P16 10 PCS 314 096 SANDING DISCS 115MM C P20 10 PCS 314 097 SANDING DISCS 115MM C P24 10 PCS 314 098 SANDING DISCS 115MM C P30 10 PCS 314 099 SANDING DISCS 115MM C P36 10 PCS 314 100 SANDING DISCS 115MM 40 10 PCS 314 101 SANDING DISCS 115MM C P50 10 PCS 314 102 SANDING DISCS 115MM C P60 10 PCS 314 103 SANDING DISCS 115MM C P80 10 PCS 314 104 SANDING DISCS 115MM C P100 10 PCS 314 105 SANDING DISCS 115MM C P120 10 PCS 3 994 312 WHEEL WASHER C FO
6. M nm nm m I o p R N m m nm nm ij NN a A mA A A mA FOR NOISE SUPPRESSOR 47 994 273 NOISE SUPPRESSOR FOR NZL AUS GBR CHN 3 99 ALTERNATIVE PARTS PARTS G 10SD2 CODE NO DESCRIPTION REMARKS 981 373 TUBE D FOR NOISE SUPPRESSOR 953 327 CORD ARMOR D8 8 317 808 TAIL COVER 307 811 TAPPING SCREW W FLANGE D4X16 BLACK 500 455Z CORD CORD ARMOR D8 8 500 409Z CORD CORD ARMOR D8 8 FOR INA 500 237Z CORD CORD ARMOR D8 8 FOR HKG GBR 500 4397 CORD CORD ARMOR 08 8 FOR NZL AUS 500 4237 CORD ARMOR D8 8 FOR SIN 317 811 SWITCH HOLDER 937 631 CORD CLIP 981 373 TUBE D FOR CORD ALTERNATIVE PARTS zs STANDARD ACCESSORIES DESCRIPTION CODE NO G 10SD2 REMARKS 313 933 WRENCH 302 142 SIDE HANDLE OPTIONAL ACCESSORIES CODE NO DESCRIPTION REMARKS 936 5582 RUBBER PAD 935 513 WASHER NUT M10XP1 5 936 548 WASHER 314 051 SANDING DISCS 100MM C P16 10 PCS 314 052 314 053 SANDING DISCS 100MM C P20 10 PCS SANDING DISCS 100MM C P24 10 PCS 314 054 SANDING DISCS 100MM C P30 10 PCS 314 055 SANDIN
7. 877 DUST SEAL 608 VVM BALL BEARING 608VVC2PS2L 301 943 LOCK PIN 16 673 422 NEEDLE BEARING HK0709 17 317 821 GEAR 18 997 263 SEAL LOCK SCREW W SP WASHER M4X10 19 316 490 BEARING COVER 20 620 1DD BALL BEARING 6201DDCMPS2L 301 946 FELT PACKING 317 823 PACKING GLAND 307 127 SEAL LOCK SCREW W SP WASHER 4 12 302 047 WOODRUFF KEY 317 804 SPINDLE 25 319 655 SPINDLE 5 8 11UNC FOR USA CAN 26 301 945 FRINGER 27 949 241 MACHINE SCREW M5X20 10 PCS 28 949 454 SPRING WASHER M5 10 PCS 29 319 656 WHEEL GUARD ASS Y INCLUD 27 28 937 8172 WHEEL WASHER 937 9282 WHEEL WASHER A FOR D16 HOLE FOR USA CAN 316 821 D C WHEELS 115MM A36Q 25 PCS 994 324 WHEEL NUT M14 937 923P WHEEL NUT 5 8 11UNC FOR USA CAN 33 317 819 GEARASSY INCLUD 6 17 34 314 428 SLIDEKNOB 35 317 802 HOUSING 36 NAME PLATE 37 995 662 RUBBER RING 38 HITACHI LABEL 39 999 088 CARBON BRUSH 1 PAIR 40 317 810 BRUSH HOLDER 41 308 536 SPRING 317 806 SLIDE BAR 314429 SPRING 2 ALTERNATIVE PARTS 8 01 PARTS P CODE NO DESCRIPTION 980 778 SLIDE SWITCH 2P PILLAR TYPE 984 750 TAPPING SCREW W FLANGE D4X16 314 854 EARTH TERMINAL 994 273 NOISE SUPPRESSOR 981 373 TUBE D 953 327 CORD ARMOR D8 8 317 808 TAIL COVER FOR NOISE SUPPRESSOR EXCEPT FOR SYR USA CAN
8. Tapping Screw D4 x 16 51 lt 52 gt to pull out the Tail Cover 50 lt 51 gt 2 Hold the Housing 35 lt 35 gt and raise the Slide Bar 42 lt 43 gt until the Slide Knob 34 lt 35 gt moves to the ON position 3 Check that the Slide Knob 34 lt 35 gt has not moved to the ON LOCK position and push down the Slide Knob 34 lt 35 gt until it clicks while keeping the Slide Bar 42 lt 43 gt raised 4 Raise the Slide Knob 34 lt 35 gt straight up and remove it keeping the Slide Bar 42 lt 43 gt raised 5 Disassembly of the gear Fig 5 1 Loosen the four Seal Lock Screws M4 x 12 23 lt 23 gt fixing the Packing Gland 22 lt 22 gt and remove the Packing Gland 22 lt 22 gt from the Gear Cover Ass y 4 lt 4 gt 2 Support the bottom of the Packing Gland 22 lt 22 gt with a jig and push down on the upper portion of the Spindle 25 lt 25 gt with a hand press until the end surface of the Woodruff Key 24 lt 24 gt contacts the Ball Bearing 20 lt 20 gt and the Spindle 25 lt 25 gt cannot be pushed down any more Be careful not to deform the Finger 26 lt 26 gt Turn the Packing Gland 22 lt 22 gt upside down and fix it then push down the Spindle 25 lt 25 gt 4 Insert the J 128 gear puller use of a steel plate is permitted as a substitute between the Gear 17 lt 17 gt and the Packing Gland 22 lt 22 gt and push down the Spindle 25 lt 25 gt with a hand press to rem
9. 360 497C ARMATURE 110V ON OI RB 360 497E 360 497F ARMATURE 220V ARMATURE 230V 240V 316 479 FAN GUIDE 982 021 HEX HD TAPPING SCREW D4X70 340 441C STATOR A 110V 340 441E 340 441F STATOR A 220V 230V STATOR A 240V 315 877 DUST SEAL 608 VVM BALL BEARING 608VVMC2EPS2L 301 943 LOCK PIN 673 422 317 821 NEEDLE BEARING HK0709 GEAR 997 263 SEAL LOCK SCREW W SP WASHER M4X10 316 490 BEARING COVER 620 1DD BALL BEARING 6201DDUCMAV2S 301 946 316 489 FELT PACKING PACKING GLAND 307 127 SEAL LOCK SCREW W SP WASHER M4X12 302 047 WOODRUFF KEY 317 822 SPINDLE 301 945 308 386 FRINGER MACHINE SCREW W SP WASHER M5X16 BLACK 301 949 SET PLATE 301 948 WHEEL GUARD ASS Y INCLUD 27 28 310 787 WHEEL WASHER 316 820 314 437 D C WHEELS 100MM A36Q 25 PCS WHEEL NUT C 317 819 GEAR ASS Y INCLUD 6 17 314 428 SLIDE KNOB 317 802 HOUSING 995 662 NAME PLATE RUBBER RING HITACHI LABEL 999 088 CARBON BRUSH 1 PAIR 317 810 BRUSH HOLDER 308 536 317 806 SPRING SLIDE BAR 314 429 SPRING 980 778 SLIDE SWITCH 2P PILLAR TYPE 984 750 TAPPING SCREW W FLANGE D4X16 314 854 EARTH TERMINAL 2
10. G DISCS 100MM C P36 10 PCS 314 056 SANDING DISCS 100MM C P40 10 PCS 314 057 314 058 SANDING DISCS 100MM C P50 10 PCS SANDING DISCS 100MM C P60 10 PCS 314 059 SANDING DISCS 100MM C P80 10 PCS 314 060 SANDING DISCS 100MM C P100 10 PCS 314 061 SANDING DISCS 100MM C P120 10 PCS 302 098 986 381 GUIDE BASE DUST COLLECTOR FOR DISC GRINDER wh h mak mak mak Printed in Japan 3 99 990325 N of ALTERNATIVE PARTS HITACHI ELECTRIC TOOL PARTS LIST M DISC GRINDER 2001 8 22 E2 Model 1252 PARTS Na 1252 GODE NG DESCRIPTION use REMARKS _ 937 807 TAPPING SCREW D5X25 317 807 GUARD PLATE 301 944 PUSHING BUTTON 316 484 GEAR COVER ASS Y INCLUD 3 15 16 301 941 SPECIAL NUT M7 6 317 820 PINION 7 628 VVC BALL BEARING 628VVC2PS2L 8 316 480 BEARING HOLDER 9 360 497C ARMATURE 110V 9 360 497E ARMATURE 220V 9 360 497F ARMATURE 230V 240V 9 360 4970 ARMATURE ASS Y 110V 115V 10 319 898 FAN GUIDE 11 982 021 HEX HD TAPPING SCREW D4X70 12 340 441C STATOR A 110V 115V 340 441E STATOR A 220V 230V 340 441F STATOR A 240V 315
11. R D20 HOLE FOR USA CAN 4 ALTERNATIVE PARTS Printed in Japan 8 01 010822N LIST NO E236 HITACHI ELECTRIC TOOL PARTS LIST M DISC GRINDER 2001 3 30 E2 Model G 13SD PARTS TE coveno EE 13SD 937 807 TAPPING SCREW D5X25 317 807 GUARD PLATE 301 944 PUSHING BUTTON 316 484 GEAR COVER ASS Y INCLUD 3 15 16 301 941 SPECIAL NUT M7 6 316 437 PINION 7 628 VVC BALL BEARING 628VVC2PS2L 8 316 480 BEARING HOLDER 9 360 497C ARMATURE 110V 9 360 497E ARMATURE 220V 360 497F ARMATURE 230V 240V 316 479 FAN GUIDE 982 021 HEX HD TAPPING SCREW D4X70 340 441C STATOR A 110V 115V 340 441E STATOR A 220V 230V 340 441F STATOR A 240V 315 877 DUST SEAL 608 VVM BALL BEARING 608VVC2PS2L 301 943 LOCK PIN 673 422 NEEDLE BEARING HK0709 17 316 438 GEAR 18 997 263 SEAL LOCK SCREW W SP WASHER M4X10 19 316 490 BEARING COVER 20 620 1DD BALL BEARING 6201DDCMPS2L 21 301 946 FELT PACKING 316 489 PACKING GLAND 307 127 SEAL LOCK SCREW W SP WASHER M4X12 302 047 WOODRUFF KEY 317 804 SPINDLE 301 945 FRINGER 27 949 241 MACHINE SCREW M5X20 10 PCS 28 949 454 SPRING WASHER MS 10 PCS 29 938 3022 SET PLATE 30 994 321 WHEEL GUARD ASS Y INCLUD 27 29 31 937 8172 WHEEL WASHER 316 822
12. c silver Weight 2 6 Kg 5 7 lbs 2 8 Kg 6 2 lbs 2 9 kg 6 4 lbs Packaging Corrugated cardboard box Depressed center wheel 100 mm 4 Side handle Wrench For some destinations 230 V 3 5 760 W 2 Net weight excludes cord side handle depressed center wheel wheel nut wheel washer and wheel guard wheel Depressed center wheel Depressed center wheel 115 mm 4 1 2 125 mm 5 Standard accessories Side handle Side handle Wrench Wrench 6 COMPARISONS WITH SIMILAR PRODUCTS 6 1 Specification Comparisons HITACHI CZEK ZA ZA ME Output w No load speed 11 000 11 000 11 000 63 dia 2 1 2 Grip diameter 207 8 9 64 207 8 9 64 195 7 43 64 250 9 RE WH 261 10 1 4 257 10 1 8 Weight 1 6 3 5 Ibs 6 3 5 Ibs 5 3 3 Ibs Actual weight 1 65 3 6 lbs 1 6 3 5 Ibs 1 5 3 3 Ibs Grip diameter Grip perimeter 1 Depends on market 2 Weight excludes cord side handle depressed center wheel wheel nut wheel washer and wheel guard HITACHI Wheel diameter 115 4 1 2 115 4 1 2 115 4 1 2 115 4 1 2 No load speed 11 000 11 000 11 000 207 8 9 64 207 8 9 64 206 8 1 8 195 7 43 64 250 9 7 8 261 10 1 4 286 11 9 32 257 10 1 8 Dimensions 3 2 eeu 3 2 7 8 Weight 1 6 3 5 Ibs 6 3 5 Ibs 1 55 8 4 1 5 5 3 3 Ibs kg Actual weight 1 65 3 6 lbs 1 6 3 5 lb
13. d 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 contains the following basic safety precautions in the use of the tool 1 For Australia New Zealand and China CAUTION Read thoroughly HANDLING INSTRUCTIONS before use 2 For U S A and Canada WARNING To reduce the risc of injury user must read and understand instruction manual Always use proper guards when grinding and wear eye protection Use only accessories rated at least min AVERTISSEMENT Afin de r duire les resques de blessure l utilisateur doit lire et bien comprendre le mode d emploi Utilisez toujours un outil muni d un protecteur ad quat et porez des lunettes ou une visiere N utilisez que des accessoires pr vus pour au moins G 1252 13 300 7 3 Precautions on Usage 1 The wheel guard must be aligned in relation to the side handle mounting position As illustrated in Figs 3 and 4 the customer should be instructed that the wheel guard mounting angle must be aligned and fixed in accordance with the side handle mounting position so that the operator s hand will not contact the depressed center wheel Fig 3 Fig 4 2 Never press the pushing bu
14. echanism As a result it is superior to in both rotation speed and stator coil temperature rise at the same torque 2 The Model G 13SD has a tenacious motor with less rotation speed drop than at the same torque This means that the working efficiency of the Model G 13SD is superior to in heavy duty work 3 The stator coil temperature rise of the Model 13SD is lower than that of at the same torque and the torque when the motor burns out is about 1 4 times higher compared to This means that the overload durability of the Model G 13SD is superior to 7 PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models G 10SD2 G 1252 G 13SD Disc Grinders by all of our customers it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the importance of the constants of the Handling Instructions and fully understands the meaning of the precautions listed on the Name Plate or Caution Plate attached to each tool 7 1 Handling Instructions Although every effort is made in each step of design manufacture and inspection to provide protection against safety hazards the dangers inherent in the use of any electric power tool cannot be completely eliminated Accordingly general precautions and suggestions for the use of electric power tools and specific precautions and suggestions for the use of the disc grinders are liste
15. ers Models G 10SD2 100 mm 4 G12S2 115 mm 4 1 2 G 1350 125 mm 5 2 MARKETING OBJECTIVE We sell Models 10SD1 and G 1251 in the international market where they have been favorably accepted However to maintain leadership in the marketplace and promote greater sales more powerful models with superior dust proof construction are demanded To address this need the Models G 10SD2 and 1252 incorporate many significant upgrades over current Models 10SD1 and 1251 In addition to these models the Model G 13SD 125 mm 5 is introduced with outstanding working efficiency and wear resistance These Models are extensions of the HITACHI compact body disc grinder series and are intended to boost sales and draw attention to the whole line 3 APPLICATIONS e Removal of casting fin and finishing of various types of steel bronze aluminum and various other metallic materials e Grinding of welds or sections cut by means of a cutting torch e Grinding of synthetic resins slate brick marble etc 4 SELLING POINTS Wear resistance of armature coil Compact body 250 mm 9 7 8 3 3 times higher compared to maker B s model 2 5 times higher compared to maker C s model Maker B s model 286 11 9 32 Maker C s model 257 10 1 8 High power with maximum output of 1 000 W Maker B s model 887 W Maker C s model 915 W Excellent overload durability 1 25 times higher compared to maker B s model 1 43 times h
16. essor Black Stator 2 For other countries Stator Stator 2545 5 8 6 Insulation Tests On completion of disassembly and repair measure the insulation resistance and conduct the dielectric strength test Insulation resistance 7 or more with DC 500V Megohm Tester Dielectric strength test AC 4 000 V 1 minute with no abnormalities 220 V 240 V products 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 110 115 220 230 240 SAG 9 STANDARD REPAIR TIME UNIT SCHEDULES PEEN a Work Flow 13SD General Assembly Slide Switch Cord Tail Cover Carbon Brush x2 Wheel Guard Ass y Pinion Ball Bearing 628 VV Bearing Holder Armature Ball Bearing 608 VV Pushing Button Gear Cover Ass y Lock Pin Gear Needle Bearing EE re Bearing Cover Ball Bearing 6201 DD Felt Packing Packing Gland Spindle Assembly Diagram for 10502 18 PARTS CODE NO DESCRIPTION REMARKS G 10SD2 937 807 TAPPING SCREW D5X25 317 807 GUARD PLATE 301 944 PUSHING BUTTON 316 484 GEAR COVER ASS Y INCLUD 3 15 16 301 941 317 820 SPECIAL NUT M7 PINION 628 VVC BALL BEARING 628VVC2PS2 L 316 480 BEARING HOLDER
17. for improved dust protection of the Ball Bearing 14 lt 14 gt Be sure to use a Dust Seal 13 lt 13 gt new one at every disassembly work of the Ball Bearing 14 lt 14 gt Fig 6 12 4 Connect the four internal wires of Stator A 12 lt 12 gt with the parts indicated in Fig 7 Connect the internal wires correctly as shown in Fig 8 Connect to the Brush Holder 40 lt 41 gt Side A Connect to the Brush Holder 40 lt 41 gt Side B Connect both the internal wire of the Noise Suppressor 47 lt 48 gt and this wire to Tube AN D 48 lt 49 gt with solderless connection and connect it to the Slide Switch 44 lt 45 gt If the Noise Suppressor 47 lt 48 gt is not Side used connect this internal wire to the Slide Switch 44 lt 45 gt after clamping Tube D 48 lt 49 gt with the solderless connection Fig 7 a Noise suppressor provided b Noise suppressor not provided Fig 8 26e ee 5 When connecting the Earth Terminal 46 lt 47 gt to the internal wire the middle wire among three of the Noise Suppressor 47 lt 48 gt strip the insulation sheath on the internal wire by about 6 mm and press connect it together with the Earth Terminal 46 lt 47 gt with a clamping tool available on the market Solderless connection Fig 9 6 Check that the spring end does not hold the pigtail when mounting the carbon brush in the tail cover when mounting the ta
18. igher compared to maker C s model e Excellent overload durability The Models 10SD2 12S2 and 13SD provide excellent overload durability thanks an improved cooling mechanism and a high power motor Practical test data Comparison of torque when the stator coil temperature rise is 200 K G 10SD2 im 106 G 1282 13SD 100 BM G 1251 80 13 100 50 0 0 50 100 e 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 of the armature coil caused by dust Coating of heat resistant adhesive 10SD2 1252 G 135D USB 10SD1 1251 100 50 0 0 50 100 5 SPECIFICATIONS O D 100 mm O D 115 mm 4 1 2 O D 125 mm Dimensions x Thickness sal 5 32 x Thickness 6 mm dm x Thickness 6 En 1 4 x 16 mm 5 8 x 22 mm 7 8 x 22 mm 7 8 Depressed center Max prectical 4 300 m min 4 800 m min peripheral speed 14 100 ft min 72 m s 15 756 ft min 80 m s AC single phase 50 or 60 Hz Voltage V Current Power input W 110 power input 3 8 foi zm ET No load speed 11 000 min 10 000 min Type of motor AC single phase commutator motor Type of switch Slide switch Material Housing Glassfiber reinforced polyamide resin green Enclosure Tail cover Gear cover Packing gland Aluminum alloy die casting Painting Gear cover Packing gland Metalli
19. il cover Do not catch the pigtail Pigtail Spring end Fig 10 7 When replacing the Gear Cover Ass y 4 lt 4 gt lubricate the metal part with mixed oil Mixed oil Mixture of Hitachi power tool grease No 2 Unilube No 00 and tubine oil e Mixture ratio 1 1 weight ratio e Volume 0 5 8 3 Lubrication Points and Types of Lubricant e Pinion chamber of Gear Cover Ass y 4 lt 4 gt 999 Nippeko grease SEP 3A 5g Generously rub grease onto the gear and pinion Metal SRO OO ay Re 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 D4 Tapping Screws 11 11 45 46 51 52 99999 2 0 0 5 N m 20 5 kgf cm 1 5 0 4 ft lbs M4 Seal Lock Screws W SP Washer 18 18 23 23 1 8 0 5 18 4 kgf cm 1 3 0 3 ft lbs D5 Tapping Screw 1 1 o 2 9 0 5 30 5 kgf cm 2 2 0 4 ft Ibs M5 Machine Screw W SP Washer 27 27 1 6 0 4 N m 16 4 kgf cm 1 2 0 3 ft lbs Special Nut M7 5 6 4 1 0 N m 65 10 kgf cm 4 7 0 7 ft Ibs 14 8 5 Wiring Diagrams 1 For European countries Australia New Zealand South Africa and China Switch Stator Black Noise suppr
20. ove it Replace the Ball Bearing 20 lt 20 gt with new one every time should the gear be disassembled because the stress while pulling out the gear is applied to the Ball Bearing 20 lt 20 gt Gear puller J 128 Steel plate 25 lt 25 gt 25 lt 25 gt 25 lt 25 gt 24 lt 24 gt Push 22 lt 22 gt 8 2 Reassembly Push the parts together in the reverse order of disassembly with the precautions given below 1 Generously lubricate the teeth of Gear 17 lt 17 gt and Pinion 6 lt 6 gt with grease Rub grease onto the teeth with your fingers so that the grease reaches each tooth bottom Note that the Gear 17 lt 17 gt and Pinion 6 lt 6 gt if under lubricated may wear at an faster rate 2 Be sure to soak the inner diameter of the Felt Packing 21 lt 21 gt with machine oil Otherwise its dust sealing function will fail to work properly resulting in an earlier damage of the Ball Bearing 20 lt 20 gt 3 When replacing the Armature 9 lt 9 gt and the Ball Bearing 14 lt 14 gt on the commutator side press inward on the Dust Seal 13 lt 13 gt while taking care of its direction until the end face of the Dust Seal 13 lt 13 gt hits against the butting surface of the Armature shaft Armature 9 lt 9 gt and make sure that Dust Seal 13 lt 13 gt cannot turn freely See Fig 6 Ball Bearing 14 lt 14 gt The Dust Seal 13 lt 13 gt is an important element
21. re shaft with a hand press to remove the Ball Bearing 7 lt 7 gt Then remove the Bearing Holder 8 lt 8 gt 2 Disassembly of the Dust Seal 1 Insert the hooks of the J 204 bearing puller between the commutator and the Dust Seal 13 lt 13 gt from both sides and fix the hooks with the wing bolts 2 Place the J204 bearing puller on a supporting jig and push down on the armature shaft with a hand press to remove the Dust Seal 13 lt 13 gt together with the Ball Bearing 14 lt 14 gt Replace the Dust Seal 13 lt 13 gt with new one because it is damaged by the removal of the Ball Bearing 14 lt 14 gt 3 Disassembly of the Stator Ass y 1 Remove the Armature 9 lt 9 gt and then pull out the two Brush Holders 40 lt 41 gt from the Housing 35 lt 36 gt 2 Disconnect the internal wires of the Stator A 12 lt 12 gt from the Brush Holders 40 lt 41 gt 3 Loosen the set screw of the Slide Switch 44 lt 45 gt and disconnect the two internal wires coming from the Stator A 12 lt 12 gt 4 Remove the Fan Guide 10 lt 10 gt from the Housing 35 lt 35 gt 5 Loosen the two Hex Hd Tapping Screws D4 x 70 11 lt 11 gt to remove the Stator A 12 lt 12 gt from the Housing 35 lt 35 gt If the Stator A 12 lt 12 gt cannot be removed easily heat the Housing 35 lt 35 gt to about 60 Then the Stator 12 12 be removed 4 Disassembly of the Slide Knob 1 Loosen the
22. s 1 55 3 4 Ibs 1 5 3 3 Ibs Grip perimeter 1 Depends on market 2 Weight excludes cord side handle depressed center wheel wheel nut wheel washer and wheel guard HITACHI Wheel diameter 125 5 e Output E 435 Max output 1 000 915 No load speed 10 000 11 000 63 dia 2 1 2 Grip diameter mm 207 8 9 64 195 7 43 64 Te me een Actual weight Weight Grip diameter Grip perimeter 1 Depends on market 2 Weight excludes cord side handle depressed center wheel wheel nut wheel washer and wheel guard 6 2 Comparisons in Torque vs Rotation Speed Stator Coil Temperature Rise Fig 1 and Fig 2 show comparisons of the rotation speed and the stator coil temperature rise between some competitive models with respect to torque Torque represents the magnitude of load i e the amount of pressing force cutting depth and forward force in actual cutting jobs This shows that a powerful motor is less likely to burn out because it has both a minimum drop of rotation speed even with a higher torque and a lower stator coil temperature rise at the same torque 12 000 Rotation speed of spindle 10 000 4 G 10502 NN HITACHI 1252 8 000 G 10SD1 D HITACHI 1281 6 000 44 pa 5 X o gt Pu a G 10SD1 x red EE d a HITACHI 1281 7 mn 5 5 10SD2 TE 5 HITACHI 1252 2 g 2 2 000 200 Stator coil
23. temp rise 22 E X B t point er C Burn out poin 0 0 Load _ Fig 1 Comparison in torque vs rotation speed and stator coil temperature rise G 10502 and G 1252 Fig 1 Indicates 1 The Models G 10SD2 and G 1282 are equipped with high power motors and improved cooling mechanisms and are superior to the Models G 10SD1 1251 BandCin the rotation speed and the stator coil temperature rise at the same torque 2 The motor speed of the Models 10502 1252 is about 10 higher than that of and at the same torque This means that the working efficiency of the Models 10SD2 and G 1282 is superior to the other maker s models 3 The stator coil temperature rise of the Models 10SD2 and 1282 is lower than that of and at the same torque and the torque when the motor is burnt out is about 1 3 times higher compared to B and C This means that the overload durability of the Models G 10SD2 and 1282 is superior to the other maker s models 10 000 Rotation speed of spindle epee HITACHI G 13SD N SR 6 000 D Z 2 E 4 000 400 2 O TE 5 77 en ae 5 C n 2 T 5 HITACHI 1350 C 2 000 200 Stator coil temp rise pe X Burn out point 0 0 Load Fig 2 Comparison in torque vs rotation speed and stator coil temperature rise G 13SD Fig 2 indicates 1 The Model G 13SD is equipped with a high power motor and improved cooling m
24. tton while the depressed center wheel is rotating If the pushing button is pressed while the depressed center wheel is rotating the spindle will stop immediately In such a case there is a danger that the wheel nut may be loosened so that the depressed center wheel flies off unexpectedly to cause possible serious injury 10 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The Bold numbers in the descriptions below correspond to the numbers in the Parts List and the exploded assembly diagram for 10SD2 and 1252 and the lt Bold gt numbers to those in the Parts List and the exploded assembly diagram for 13SD 8 1 Disassembly 1 Disassembly of the Armature 1 Loosen the Tapping Screw D4 x 16 51 lt 52 gt to pull out the Tail Cover 50 lt 51 gt 2 Remove the two Carbon Brushes 39 lt 40 gt from the Brush Holders 40 lt 41 gt 3 Loosen the four Tapping Screws D5 x 25 1 lt 1 gt which fix the Gear Cover Ass y 4 lt 4 gt to remove the Armature 9 lt 9 gt from the Housing 35 lt 36 gt together with the Bearing Holder 8 lt 8 gt 4 Loosen the Special Nut M7 5 lt 5 gt which fixes the Pinion 6 lt 6 gt to remove the Pinion 6 lt 6 gt 5 Insert the hooks of the J 204 bearing puller between the Ball Bearing 7 lt 7 gt and the Bearing Holder 8 lt 8 gt from both sides and fix the hooks with the wing bolts 6 Place the J204 bearing puller on a supporting jig and push down on the tip of the armatu
Download Pdf Manuals
Related Search