Hitachi G 12SA2 Technical Data And Service Manual
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Hitachi G 12SA2 Technical Data And Service Manual

Hitachi G 12SA2 Technical Data And Service Manual

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

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Summary of Contents for Hitachi G 12SA2

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

  • Page 2: Table Of Contents

    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 Diagrams for G 12SA2 / G 13SB2...

  • Page 3: Product Name

    The Models G 12SA2 and G13SB2 have been developed to upgrade and replace the current Models G 12SA and G 13SB.
  • Page 4 Excellent overload durability The Models G 12SA2 and G 13SB2 provide excellent overload durability thanks to 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 12SA2...

  • Page 5: Specifications

    5. SPECIFICATIONS Model G 12SA2 G 13SB2 Item O.D. 115 mm (4-1/2") O.D. 125 mm (5") Dimensions x Thickness 6 mm (1/4") x Thickness 6 mm (1/4") Depressed- x I.D. 22.2 mm (7/8") x I.D. 22.2 mm (7/8") center Max. practical...

  • Page 6: Comparisons With Similar Products

    The graph below shows the relationship between load and temperature rise of the stator coil. The temperature rise of the Models G 12SA2 and G 13SB2 is the lowest among similar models. This means that the resistance to overload usage of the Models G 12SA2 and G 13SB2 is superior to other models.

  • Page 7: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models G 12SA2 and G 13SB2 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 contents of the Handling Instructions, and fully understands the meaning of the precautions listed on the Name Plate or Caution Plate attached to each tool.

  • Page 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 G 12SA2, and the <Bold> numbers to those in the Parts List and the exploded assembly diagram for G 13SB2.
  • Page 9 (2) Removal of the Dust Seal [18] <18> 1. Insert the hooks of the J-204 bearing puller between the commutator and the Dust Seal [18] <18> from both sides, and fix the hooks with the wing bolts. 2. Place the J-204 bearing puller on a supporting jig and push down on the armature shaft with a hand press to remove the Dust Seal [18] <18>...

  • Page 10: 8-2.Reassembly

    (6) Removal of the Pushing Button Switch [49] <48> 1. Loosen the Tapping Screw (W/Flange) D4 x 16 (Black) [56] <55> and remove the Tail cover [55] <54>. 2. Loosen the two Tapping Screws (W/Flange) D4 x 20 (Black) [58] <57> and remove the Switch Holder [50] <49>...
  • Page 11 Fig. 11 (6) When replacing the Gear Cover Ass'y [4] <4>, lubricate the needle bearing with mixed oil. Mixed oil: Mixture of Hitachi power tool grease No. 2 (Unilube No. 00) and turbine oil Mixture ratio ... 1:1 (weight ratio) Volume ...

  • Page 12: Lubrication Points And Types Of Lubricant

    Pinion chamber of Gear Cover Ass'y [4] <4> ......Nippeco grease (JF-375) 18 g Generously rub grease onto the gear and 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.

  • Page 13: Wiring Diagrams

    8-5. Wiring Diagrams (1) For European countries and New Zealand Cord (2) For U.S.A. and Canada Cord --- 11 ---...

  • Page 14: Insulation Tests

    8-6. Insulation Tests On completion of disassembly and repair, measure the insulation resistance, and conduct the dielectric strength test. Insulation resistance: 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 ....

  • Page 15: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow G 12SA2 G 13SB2 Wheel Guard Ass'y Stator General Assembly Housing Gear Cover Slide Bar Ass'y Pinion Seal Ring (A) Washer (C) Ball Bearing (629T12) Rubber Ring...
  • Page 16 LIST NO. E239 ELECTRIC TOOL PARTS LIST 2000 DISC GRINDER • • ( E1 ) Model G 12SA2...
  • Page 17 G 12SA2 PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 937-807 TAPPING SCREW D5X25 319-315 GUARD PLATE 301-944 PUSHING BUTTON 308-542 GEAR COVER ASS'Y INCLUD.3,5,21 315-049 FELT WASHER 301-941 SPECIAL NUT M7 308-541 PINION 308-543 SEAL RING (A) 980-866 WASHER (C)
  • Page 18 G 12SA2 PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 317-810 BRUSH HOLDER 308-536 SPRING 319-319 PUSHING BUTTON SWITCH 319-318 SWITCH HOLDER 314-854 EARTH TERMINAL FOR NOISE SUPPRESSOR 994-273 NOISE SUPPRESSOR EXCEPT FOR USA,CAN 319-320 FASTON TERMINAL FOR NOISE SUPPRESSOR 953-327 CORD ARMOR D8.8...
  • Page 19 G 12SA2 STANDARD ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 938-332Z WRENCH 994-322 SIDE HANDLE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 937-826Z WASHER NUT 938-318 WASHER NUT FOR USA,CAN 937-825Z RUBBER PAD 938-317 RUBBER PAD FOR USA,CAN 994-312...
  • Page 20 LIST NO. E240 ELECTRIC TOOL PARTS LIST 2000 DISC GRINDER • • ( E1 ) Model G 13SB2...
  • Page 21 308-539 GEAR ASS'Y INCLUD.7,22 314-428 SLIDE KNOB 319-314 HOUSING NAME PLATE 995-662 RUBBER RING 319-317 SLIDE BAR HITACHI LABEL 999-088 CARBON BRUSH (1 PAIR) 317-810 BRUSH HOLDER 308-536 SPRING 319-319 PUSHING BUTTON SWITCH 319-318 SWITCH HOLDER 11 --- 00 : ALTERNATIVE PARTS...
  • Page 22 G 13SB2 PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 314-854 EARTH TERMINAL 994-273 NOISE SUPPRESSOR 319-320 FASTON TERMINAL 953-327 CORD ARMOR D8.8 319-316 TAIL COVER 307-811 TAPPING SCREW (W/FLANGE) D4X16 (BLACK) 500-234Z CORD (CORD ARMOR D8.8) 500-247Z CORD (CORD ARMOR D8.8) FOR NOR,SWE,DEN 500-435Z CORD (CORD ARMOR D8.8) FOR GBR (230V)
  • Page 23 G 13SB2 STANDARD ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 938-332Z WRENCH 994-322 SIDE HANDLE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 937-825Z RUBBER PAD 937-826Z WASHER NUT 310-338 SUPER WASHER 314-064 SANDING DISCS 125MM C-P24 (10 PCS.) 314-065 SANDING DISCS 125MM C-P30 (10 PCS.) 314-068 SANDING DISCS 125MM C-P50 (10 PCS.)

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G 13sb2

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