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Hitachi C 9U2 Service Manual

Circular saws
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CIRCULAR SAWS
LIST Nos. C 9U2: E513
C 9BU2: E514
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
MODELS
C 9U2
C 9BU2
Nov. 2005
C 9U2
C 9BU2
Hitachi
Power Tools
TECHNICAL DATA
SERVICE MANUAL
AND
C

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Summary of Contents for Hitachi C 9U2

  • Page 1 MODELS C 9U2 C 9BU2 Hitachi Power Tools CIRCULAR SAWS TECHNICAL DATA C 9U2 C 9BU2 SERVICE MANUAL LIST Nos. C 9U2: E513 Nov. 2005 C 9BU2: E514 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: C 9U2, C 9BU2 Competitor Symbol Utilized Company Name...

  • Page 3: Table Of Contents

    8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY ............. 8 8-1. Disassembly ............................. 8 8-2. Reassembly ............................9 8-3. Insulation Tests ..........................13 8-4. Cleaning the Cover ......................... 13 9. STANDARD REPAIR TIME (UNIT) SCHEDULES ................ 14 Assembly Diagram for C 9U2 Assembly Diagram for C 9BU2...

  • Page 4: Product Name

    Models C 9U2 and C 9BU2 owing to revision of the European Standard concerning circular saws in April 2006.

  • Page 5: Selling Points

    4. SELLING POINTS Compact and light weight (Weight: 6.8 kg) Low noise and vibration (Noise level during no-load operation: 4 to 5 dB lower than the conventional Electric brake model) Unique design (Models C 9BU2 only) Most lightweight in the class thanks to the gear cover made of die-cast magnesium alloy Main handle...

  • Page 6: Selling Point Descriptions

    (3) Low noise and vibration In the Models C 9U2 and C 9BU2, the ball bearings at the front and the back of the motor are supported by rubber parts and a highly efficient, low-noise and small-diameter fan is adopted. The noise level and the vibration level at start-up and no-load operation are reduced thanks to the above.
  • Page 7 (11) Two kinds of levers (Standard accessories) The Models C 9U2 and C 9BU2 are equipped with both the short lever for use with the dust collector and the long lever (factory-installed) as standard accessories. When the dust collector is not necessary, use the easier-to-operate long lever for comfortable cutting operation.

  • Page 8: Specifications

    5. SPECIFICATIONS Model C 9U2 C 9BU2 Saw blade diameter 235 mm (9-1/4") at 90û 0 to 86 mm (0 to 3-3/8") Cutting depth at 45û Max. 65 mm (2-9/16") Power source AC single phase Type of motor AC single phase commutator motor...

  • Page 9: Comparisons With Similar Products

    --- 6 ---...

  • Page 10: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models C 9U2 and C 9BU2 Circular Saws 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.

  • Page 11: Precautions In Disassembly And Reassembly

    [Bold] numbers in the descriptions below correspond to the item numbers in the parts list and exploded assembly diagram for the Model C 9U2. During disassembly and reassembly, and at all other times as well, sufficient care must be exercised in handling to ensure that there is no deviation in the flatness of the bottom surface of the base and in its perpendicularity with relation to the saw blade.

  • Page 12: Reassembly

    8-2. Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse. However, particular attention should be given to the following items. (1) Tightening torques for fastening screws and bolts Machine Screws M4 [18] [21] [46] ........... 1.8 0.4 N m {18 4 kgf •...
  • Page 13 [28] (4) Reassembly of the Lock Lever [26] (See Fig. 3.) A. Position the Lock Lever [26] between the fan and the Ball Bearing 6202VVCMPS2L [35] of the Armature [25], and carefully assemble it together with the Armature [25] into the Gear Cover [28]. B.
  • Page 14 A. Model C 9U2 (Not provided for the Model C 9U2 for South Africa) Fig. 4 B. Model C 9U2 (For Switzerland) Fig. 5 --- 11 ---...
  • Page 15 C. Model C 9BU2 (Not provided for the Model C 9BU2 for South Africa) Fig. 6 D. Model C 9BU2 (For Switzerland) Fig. 7 --- 12 ---...

  • Page 16: Insulation Tests

    8-3. Insulation Tests On completion of disassembly and repair, measure the insulation resistance and conduct dielectric strength test. Insulation resistance: 7 M Ω or more with DC 500 V megohm tester Dielectric strength: AC 4000 V/1 minute, with no abnormalities 8-4.

  • Page 17: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow C 9U2 C 9BU2 Handle Cover Switch Cord Cord Armor Housing Ass'y Stator Ass'y General Assembly Protective Armature Ass'y Cover Ball Bearing Return Spring (6202VV) Saw Cover...
  • Page 18 Hitachi Power Tools LIST NO. E513 ELECTRIC TOOL PARTS LIST CIRCULAR SAW 2005 • • Model C 9U2 (E1)
  • Page 19 PARTS C 9U2 ITEM CODE NO. DESCRIPTION REMARKS USED 673-002 NEEDLE BEARING (HK1212) 303-789 SPINDLE AND GEAR SET 303-790 BEARING HOLDER 303-797 SEAL LOCK FLAT HD. SCREW M6X14 998-887 LINER 620-3VV BALL BEARING 6203VVCMPS2L 325-353 SAFETY COVER 303-805 RETURN SPRING...
  • Page 20 PARTS C 9U2 ITEM CODE NO. REMARKS DESCRIPTION USED 308-481 BEVEL PLATE 308-482 RIVET D6X24 303-806 RIVING KNIFE 324-664 HEX. SOCKET HD. BOLT M8X10 303-800 DIAGONAL BOLT M8 949-425 WASHER M6 (10 PCS.) 302-438 WING BOLT (A) M6X20 301-653 TAPPING SCREW (W/FLANGE) D4X20 (BLACK)

  • Page 21: Standard Accessories

    STANDARD ACCESSORIES C 9U2 ITEM CODE NO. DESCRIPTION REMARKS USED 303-888 GUIDE 872-422 HEX. BAR WRENCH 6MM 303-338 KNOB 302-443 WASHER (A) FOR EUROPE 303-811 SIDE HANDLE 949-340 FLAT HD. SCREW M6X16 (10 PCS.) 325-364 CASE OPTIONAL ACCESSORIES ITEM CODE NO.
  • Page 22 Hitachi Power Tools LIST NO. E514 ELECTRIC TOOL PARTS LIST CIRCULAR SAW 2005 • • Model C 9BU2 (E1)
  • Page 23 SEAL LOCK FLAT HD. SCREW M5X14 302-476 WASHER (A) 303-809 TCT SAW BLADE 235MM-D15.9 HOLE-NT20 303-810 TCT SAW BLADE 235MM-D30 HOLE-NT20 325-354 SAW COVER HITACHI LABEL 324-669 DUST COLLECTOR 324-139 SPECIAL BOLT 302-464 KNOB 304-043 MACHINE SCREW (W/WASHERS) M4X10 (BLACK)
  • Page 24 PARTS C 9BU2 ITEM CODE NO. REMARKS DESCRIPTION USED 308-481 BEVEL PLATE 308-482 RIVET D6X24 303-806 RIVING KNIFE 324-664 HEX. SOCKET HD. BOLT M8X10 303-800 DIAGONAL BOLT M8 949-425 WASHER M6 (10 PCS.) 302-438 WING BOLT (A) M6X20 301-653 TAPPING SCREW (W/FLANGE) D4X20 (BLACK) NAME PLATE 325-358 SAFETY LOCK BUTTON...
  • Page 25 STANDARD ACCESSORIES C 9BU2 ITEM CODE NO. DESCRIPTION REMARKS USED 303-888 GUIDE 872-422 HEX. BAR WRENCH 6MM 303-338 KNOB 302-443 WASHER (A) 1 FOR EUROPE 303-811 SIDE HANDLE 949-340 FLAT HD. SCREW M6X16 (10 PCS.) 325-364 CASE OPTIONAL ACCESSORIES ITEM CODE NO.

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