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MODEL G 13YD G 13V POWER TOOLS ELECTRONIC DISC GRINDER TECHNICAL DATA G 13YD SERVICE MANUAL G 13V LIST Nos. E241, E242 Feb. 2001 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
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Notice for use Specifications and parts are subject to change for improvement. Refer to Hitachi Power Tool Technical News for further information.
In order to meet the requirement and also to meet the rival products, we developed the new electronic disc grinder Models G 13YD and G 13V equipped with the most powerful motor in this class. G 13V has been introduced to meet the demand for variable speed. Our market share is expected to grow with the release of these new models which broaden our lineup of disc grinders.
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Excellent overload durability The Models G 13YD and G 13V 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 13YD, G 13V B1, B2 Fig.
5. SPECIFICATIONS Model G 13YD G 13V Item O.D. 125 mm (5") Dimensions x Thickness 6 mm (1/4") Depressed x I.D. 22 mm (7/8") center Max. practical wheel 4,800 m/min (15,756 ft/min, 80 m/s) peripheral speed Type A, 36, Q, BF...
(2) The rotation speed of the Models G 13YD and G 13V is higher than that of B1 and B2 at the same torque under heavy load conditions. This shows that the Models G 13YD and G 13V ensure excellent performance.
7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models G 13YD and G 13V Electronic 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.
The customer should be advised that the Models G 13YD and G 13V are specifically designed to perform more efficiently and faster with considerably less applied pressure than is required for conventional disc grinders, and that skillful use of the tools with minimal applied pressure will avoid actuating the overload protection circuit.
8. FUNCTION AND OPERATION OF THE CONTROL CIRCUIT 8-1. Contorl Circuit (Block Diagram) * Model G 13V only 8-2. Function of Each Block (1) Rotation speed detector: Generates a frequency signal proportionate to the actual rotation speed of the motor. A magnetic sensor in the controller monitors changes in the magnetic flux from a magnet, and generates a frequency signal.
The [Bold] numbers in the descriptions below correspond to the numbers in the Parts List and the exploded assembly diagram for G 13YD, and the <Bold> numbers to those in the Parts List and the exploded assembly diagram for G 13V.
9-2. Disassembly (1) Disassembly of the armature 1) Loosen the Tapping Screw (W/Flange) D4 x 20 (Black) [53] <53> to pull out the Tail Cover [52] <52>. 2) Remove the two Carbon Brushes [40] <40> from the Brush Holders [41] <41>. 3) Loosen the four Tapping Screws D5 x 25 [1] <1>...
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(5) Disassembly of the slide knob 1) Loosen the Tapping Screw (W/Flange) D4 x 20 (Black) [53] <53> to pull out the Tail Cover [52] <52>. 2) Hold the Housing [35] <35> and raise the Slide Bar [43] <43> until the Slide Knob [34] <34> moves to the "ON"...
9-3. Reassembly Push the parts together in the reverse order of disassembly, with the precautions given below. (1) Generously lubricate the teeth of Gear [17] <17> and Pinion [6] <6> with grease. Rub grease onto the teeth with your fingers so that the grease reaches each tooth bottom. Note that the Gear [17] <17> and Pinion [6] <6>...
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Fig. 10 (7) When replacing the Gear Cover Ass'y [4] <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 ...
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(B) SINCE FEB. 2001 INTER- MODEL CODE ITEM PART NAME CODE SUPPLY ITEM REMARKS CHANGE- PART NAME NAME ABILITY G 13YD 319372 CONTROLLER 319372 DISCONTINUED CONTROLLER INCLUD. 54, 55 CORD CLIP 930108 CONTINUED 937631 CORD CLIP INTER- 305720 TAPPING SCREW...
9-4. Connecting Internal Wires and Wiring Diagrams Connect the internal wires according to Figs. 11 to 13. Noise Suppressor [50] <50> Numbers in the following figures correspond to the internal wires of Stator (A). Brush Holder [41] <41> (Side A) Connect to the Brush Holder [41] <41>...
Nippeco grease (SEP-3A) 6 g Generously rub grease onto the gear and pinion. Metal ..................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) 9-6.
10. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow G 13YD G 13V Wheel Guard Ass'y Housing General Assembly Stator Pinion Slide Bar Ball Bearing Spring (628VV) Bearing Holder Armature Dust Seal Ball Bearing (608VV) Pushing Button...
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LIST NO. E241 ELECTRIC TOOL PARTS LIST ELECTRONIC DISC GRINDER 2000 • • Model G 13YD (E1)