Hitachi G 10SR2 Service Manual
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Hitachi G 10SR2 Service Manual

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DISC GRINDER
LIST Nos. G 10SR2: E260
G 12SR2: E261
G 13SR2: E262
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
MODELS
POWER TOOLS
G 10SR2
G 12SR2
G 13SR2
Feb. 2003
G 10SR2
G 12SR2
G 13SR2
TECHNICAL DATA
AND
SERVICE MANUAL
G
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Summary of Contents for Hitachi G 10SR2

  • Page 1 G 12SR2 G 13SR2 POWER TOOLS DISC GRINDER G 10SR2 TECHNICAL DATA G 12SR2 SERVICE MANUAL G 13SR2 LIST Nos. G 10SR2: E260 Feb. 2003 G 12SR2: E261 G 13SR2: E262 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 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 10SR2 Competitor Symbols Utilized Company Name Model Name...

  • Page 3: Table Of Contents

    8-4. Tightening Torque ......................... 11 8-5. Wiring Diagrams ........................... 11 8-6. Insulation Tests ..........................12 8-7. No-Load Current Value ........................ 12 9. STANDARD REPAIR TIME (UNIT) SCHEDULES ...............13 Assembly Diagram for G 10SR2 Assembly Diagram for G 12SR2 Assembly Diagram for G 13SR2...

  • Page 4: Product Name

    The key features of the Models G 10SR2, G 12SR2, and G 13SR2 in comparison with the previous models are as follows:...

  • Page 5: Specifications

    5. SPECIFICATIONS Model G 10SR2 G 12SR2 G 13SR2 Item O.D. 100 mm (4") O.D. 115 mm (4-1/2") O.D. 125 mm (5") Depressed Dimensions x Thickness 4 mm (5/32") x Thickness 6 mm (1/4") x Thickness 6 mm (1/4") center x I.D.
  • Page 6 Compared with a typical competitor's model in terms of this indicator, the Models G 10SR2, G 12SR2 and G 13SR2 prove to have the highest performance.

  • Page 7: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. Specification Comparisons Maker HITACHI G 10SR2/ G 10SR/ Model G 13SR2 G 13SR G 12SR2 G 12SR 100 (4")/ 100 (4")/ 100 (4")/ 100 (4")/ Wheel diameter 125 (5") 125 (5") 125 (5") 115 (4-1/2") 115 (4-1/2")

  • Page 8: Practical Test Data

    The graph below shows the relationship between load and temperature rise of stator coil. The temperature rise of the Models G 10SR2, G 12SR2 and G 13SR2 is the lowest among similar models. This means that the resistance to overload usage of the Models G 10SR2, G 12SR2 and G 13SR2 is superior to other models.

  • Page 9: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models G 10SR2, G 12SR2 and G 13SR2 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 10: Precautions On Usage

    7-3. Precautions on Usage (1) The wheel guard must be aligned in relation to the side handle mounting position. As illustrated in Figs. 5 and 6, 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.

  • Page 11: Precautions In Disassembly And Reassembly

    8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The [Bold] numbers in the descriptions below correspond to the numbers in the Parts Lists and exploded assembly diagram for the Models G 10SR2, G 12SR2 and G 13SR2. 8-1. Disassembly (1) Replacement of the Armature and Stator Remove the Brush Caps [47] and take off the Carbon Brushes [48].

  • Page 12: Reassembly

    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 [20] and Pinion [6] with grease. Rub grease onto the teeth with your fingers so that the grease reaches each tooth bottom. Note that the Gear [20] and the Pinion [6] may wear at a faster rate if under-lubricated.

  • Page 13: Lubrication Points And Types Of Lubricant

    Solderless connection Fig. 10 (6) When replacing the Gear Cover Ass'y [4], lubricate the metal part 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 0.5 cc...

  • Page 14: Tightening Torque

    8-4. Tightening Torque Tapping Screw D4 [12] [54] [57] 0.5 N m (20 5 kgf cm, 1.5 0.4 ft-lbs.) • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •...

  • Page 15: Insulation Tests

    8-6. Insulation Tests On completion of disassembly and repair, measure the insulation resistance and conduct the dielectric strength test. Insulation resistance: or more with DC 500 V Megohm Tester Dielectric strength: AC 4,000 V/1 minute, with no abnormalities 220 V - - - 240 V •...

  • Page 16: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min. Fixed Work Flow G 10SR2 G 12SR2 Switch G 13SR2 Tail Cover Cord Housing Ass'y Cord Armor Stator Slide Bar Spring Slide Knob General Assembly Armature Pinion Ball Bearing (608VV)
  • Page 17 LIST NO. E260 ELECTRIC TOOL PARTS LIST DISC GRINDER 2003 • • Model G 10SR2 (E1)
  • Page 18 PARTS G 10SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 320-523 TAPPING SCREW D5X25 (BLACK) 302-149 GUARD PLATE 301-944 PUSHING BUTTON 314-125 GEAR COVER ASS’Y INCLUD. 3, 17 309-191 SPECIAL NUT M6 321-724 PINION 314-430 SLOTTED HD. SCREW (SEAL LOCK) M4X10...
  • Page 19 PARTS G 10SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 314-432 SWITCH HOLDER 938-307 PILLAR TERMINAL HITACHI LABEL 936-551 BRUSH CAP 999-021 CARBON BRUSH (1 PAIR) 313-777 BRUSH HOLDER 314-603 SWITCH (1P SOLDER TYPE) INCLUD. 51 305-499 MACHINE SCREW (W/WASHER) M3.5X6...
  • Page 20 STANDARD ACCESSORIES G 10SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 313-933 WRENCH 302-142 SIDE HANDLE 318-312 SIDE HANDLE FOR USA, CAN OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 314-051 SANDING DISCS 100MM C-P16 (10 PCS.) 314-052 SANDING DISCS 100MM C-P20 (10 PCS.) 314-053 SANDING DISCS 100MM C-P24 (10 PCS.)
  • Page 21 LIST NO. E261 ELECTRIC TOOL PARTS LIST DISC GRINDER 2003 • • Model G 12SR2 (E1)
  • Page 22 PARTS G 12SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 320-523 TAPPING SCREW D5X25 (BLACK) 302-149 GUARD PLATE 301-944 PUSHING BUTTON 314-125 GEAR COVER ASS’Y 1 INCLUD. 3, 17 309-191 SPECIAL NUT M6 321-724 PINION 314-430 SLOTTED HD. SCREW (SEAL LOCK) M4X10 608-VVM BALL BEARING 608VVC2PS2L 301-935...
  • Page 23 PARTS G 12SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 314-432 SWITCH HOLDER 938-307 PILLAR TERMINAL HITACHI LABEL 936-551 BRUSH CAP 999-021 CARBON BRUSH (1 PAIR) 313-777 BRUSH HOLDER 314-603 SWITCH (1P SOLDER TYPE) 1 INCLUD. 51 305-499 MACHINE SCREW (W/WASHER) M3.5X6...
  • Page 24 STANDARD ACCESSORIES G 12SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 938-332Z WRENCH 302-142 SIDE HANDLE 318-312 SIDE HANDLE 1 FOR USA, CAN 319-375 CASE 1 FOR USA, CAN, NZL, AUS OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 314-095 SANDING DISCS 115MM C-P16 (10 PCS.) 314-096 SANDING DISCS 115MM C-P20 (10 PCS.) 314-097...
  • Page 25 LIST NO. E262 ELECTRIC TOOL PARTS LIST DISC GRINDER 2003 • • Model G 13SR2 (E1)
  • Page 26 HOUSING ASS’Y INCLUD. 16 NAME PLATE 314-854 EARTH TERMINAL FOR NOISE SUPPRESSOR 980-063 TERMINAL FOR NOISE SUPPRESSOR 994-273 NOISE SUPPRESSOR EXCEPT FOR USA, CAN 314-432 SWITCH HOLDER 938-307 PILLAR TERMINAL HITACHI LABEL --- 2 --- * ALTERNATIVE PARTS 2 -- 03...
  • Page 27 PARTS G 13SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 936-551 BRUSH CAP 999-021 CARBON BRUSH (1 PAIR) 313-777 BRUSH HOLDER 314-603 SWITCH (1P SOLDER TYPE) INCLUD. 51 305-499 MACHINE SCREW (W/WASHER) M3.5X6 980-063 TERMINAL FOR CORD 937-631 CORD CLIP 984-750 TAPPING SCREW (W/FLANGE) D4X16 953-327 CORD ARMOR D8.8...
  • Page 28 STANDARD ACCESSORIES G 13SR2 ITEM CODE NO. DESCRIPTION REMARKS USED 938-332Z WRENCH 302-142 SIDE HANDLE 318-312 SIDE HANDLE FOR USA, CAN OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 314-062 SANDING DISCS 125MM C-P16 (10 PCS.) 314-063 SANDING DISCS 125MM C-P20 (10 PCS.) 314-064 SANDING DISCS 125MM C-P24 (10 PCS.) 314-065...

This manual is also suitable for:

G 12sr2G 13sr2

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