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(3) The ball bearing at the commutator side is covered with the metal bearing bushing

The resin housing incorporates the metal bearing bushing and the outer frame is covered with the resin tail

cover to cope with weakness of the resin housing that it melts by heat of the ball bearing due to overload

operation. This resin tail cover also prevents the CB cap from being loose by vibration.

(4) Soft-grip handle for comfortable grip and fit

The handle grip is entirely covered with a soft resin material (called "elastomer") for nonskid grip and

comfortable fit. This handle offers less user fatigue even if it is operated for a long time.

(5) Easy to use toolless base adjustment mechanism for secure fixation of the base

The Model CM 4SB2 has the base adjustment mechanism equipped with a lever to adjust the cutting depth

without the aid of tools. In the case of the conventional models and the competitors, a wing bolt is used to fix

the base link. However, there is a problem that such a wing bolt is apt to be loose during operation and lost

without being noticed. In the case of the Model CM 4SB2, the base can be easily fixed and loosened just by

raising and lowering the lever. In addition, the lever is prevented from being loose during operation.

(6) Short distance (L) between the blade tip and the base edge

The Model CM 4SB2 has the uniquely shaped

base unit to shorten the dimension (L) as shown

in the left figure. It is convenient for edge cutting.

The dimension (L) of the Model CM 4SB2 is

28 mm as shown in the table above. It is the

shortest among the current models and C by

10 mm or more.

CM 4SB2

Comparison of the dimension (L)

CM 4SB

CM 4SA2

Back side

Metal bearing bushing

CB cap

Resin tail cover

Содержание CM 4SB2

Страница 1: ...TECHNICAL DATA AND SERVICE MANUAL 110 MM CUTTER CM 4SB2 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No E710 Feb 2006 C MODEL CM 4SB2 Hitachi Power Tools ...

Страница 2: ...AL 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 Symbols Utilized Competitors Company Name Model Name MAKITA 4100NH C ...

Страница 3: ...S 5 6 1 Specification Comparisons 5 6 2 Cutting Characteristics for Various Workpiece Materials 6 7 PRECAUTIONS IN SALES PROMOTION 7 7 1 Handling Instructions 7 7 2 Cautions on the Name Plate 8 7 3 Precautions in Use 9 8 DISASSEMBLY REASSEMBLY GUIDE 10 8 1 Disassembly 10 8 2 Reassembly 14 8 3 Inspection after Reassembly 16 9 STANDARD REPAIR TIME UNIT SCHEDULES 17 Assembly Diagram for Model CM 4SB2...

Страница 4: ...dy to differentiate from other products at a glance With the new Model CM 4SB2 we aim to expand our market share 3 APPLICATIONS Cutting or striating stones such as marble and granite tile concrete brick and similar materials Typical applications Upholstery work decoration work stone processing tiling electric work and plumbing High overload durability thanks to the powerful 1 320 W motor with the ...

Страница 5: ...tional models and a competitor when the stator coil temperature is 200 ûC It is clear that high overload durability can be obtained as the torque becomes high CM 4SB C 0 85 1 41 1 23 2 Highly vibration resistant and dust resistant armature coil The Model CM 4SB2 has substantially higher vibration resistance than the conventional model because movement of the coil due to vibration is suppressed by ...

Страница 6: ...nt mechanism equipped with a lever to adjust the cutting depth without the aid of tools In the case of the conventional models and the competitors a wing bolt is used to fix the base link However there is a problem that such a wing bolt is apt to be loose during operation and lost without being noticed In the case of the Model CM 4SB2 the base can be easily fixed and loosened just by raising and l...

Страница 7: ...e Trigger switch Type of switch Enclosure Material and color 12 6 A 11 6 A 6 3 A 6 0 A 240 V 5 8 A 11 500 min No load rotation speed 2 8 kg 6 2 lbs excluding cord Net 3 8 kg 8 4 lbs Gross Two core cabtire cable Type 2 5 m 8 2 ft Overall length Corrugated fiberboard box Package Box wrench 1 Wrench 1 Water plug excluding China U S A 1 Rubber adaptor exclusing China U S A 1 Vinyl hose exclusing China...

Страница 8: ...ures Vibration level db 103 1 4 m s2 Max torque N m ratio 1 95 136 Metal bearing holder Sealed armature coil Cutting depth setting mm mm 2 5 8 2 ft 28 1 7 64 m mm CM 4SB 110 4 3 8 34 1 3 8 12 000 1 240 2 8 6 2 lbs 220 12 000 85 5 9 8 500 0 80 1 08 ft lbs 705 84 72 13 1 17 8 ft lbs 2 040 2 99 6 6 lbs 201 7 29 32 156 6 9 64 Not provided Not provided Not provided Wing bolt 111 3 6 m s2 1 43 100 2 5 8...

Страница 9: ...rents of the Model CM 4SB2 are lower than those of the Model CM 4SB and maker C s model Power supply 220 V 50 Hz Diamond wheel Segment type 106 dia Rim type 110 dia 1 For wet cutting Model CM 4SB C 0 0 1 0 0 8 0 6 0 4 0 2 1 2 10 2 4 6 8 0 Model CM 4SB2 0 0 1 0 0 8 0 6 0 4 0 2 1 2 10 2 4 6 8 0 Model CM 4SB C Model CM 4SB2 Cutting speed m min Marble T25 Wet Current A Cutting speed m min Concrete dep...

Страница 10: ...n 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 cutter are listed in the Handling Instructions to enhance the safe and efficient use of the tool by the customer Salespersons must be thorou...

Страница 11: ...utions on the 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 China 2 For Taiwan 3 For the U S A and Canada 4 For New Zealand ...

Страница 12: ...g segment type Otherwise the service life of the diamond wheel may be shortened Instruct the customers to set the cutting depth to 20 mm or less and not to cut a workpiece at a time but cut it in several steps if a cutting depth over 20 mm is required Otherwise the diamond wheel may be damaged and its service life may be significantly shortened as well as the motor burnout The diamond wheel may be...

Страница 13: ...sen the Bolt Left Hand M7 x 15 54 using the Wrench Hex Socket 10 19 2 mm 501 and the Box Wrench 10 mm 502 standard accessories then remove the diamond wheel The diamond wheel is secured with the left hand thread bolt 2 Disassembly of the Housing Ass y 13 Fig 2 1 Loosen the two Tapping Screws W Flange D4 x 20 Black 14 to remove the Tail Cover 18 then remove the two Brush Caps 31 and two Carbon Brus...

Страница 14: ... 37 Fig 4 and Fig 5 1 Loosen the two Seal Lock Screws W Sp Washer M5 x 20 47 Tap gently the end surface of the Gear Cover 41 with a wooden hammer and remove the Bearing Holder 37 in an assembled condition 2 Pull out the O ring 33 attached to the tip of the Spindle 38 and push the end surface of the Spindle 38 with a hand press holding the side of the Bearing Holder 37 Then the Distance Piece 35 an...

Страница 15: ...e the Gear 56 NOTE It is recommended to replace the Gear 56 together with the Spindle 38 Because the press fitting force is decreased as it is press fitted without key Fig 6 39 38 56 6 Disassembly of the Bearing Bushing 21 Fig 7 1 Pull out the Bearing Bushing 21 from the Housing Ass y 13 Remove the Rubber Ring 19 and the Rubber Washer 20 from the inside of the Bearing Bushing 21 19 13 21 20 Fig 7 ...

Страница 16: ...ng Screws W Flange D4 x 20 Black 14 and remove the Handle Cover 9 from the Housing Ass y 13 2 Loosen the small screw of the Switch 1P Screw Type 11 Then the two internal wires coming from the Stator Ass y 4 and the two internal wires coming from the Cord 28 can be disconnected and the Switch 1P Screw Type 11 Switch Rubber Cover 10 and Noise Suppressor 22 can be removed from the Housing Ass y 13 Re...

Страница 17: ...ciently apply grease to the tooth portions of the Pinion 43 and the Gear 56 by rubbing with fingers Insufficient greasing may cause an early wear of the Pinion 43 and the Gear 56 3 Be careful of the mounting direction of the Cord Clip 26 Fig 10 2 Fig 10 1 45 44 6 7 Fig 10 2 25 26 Cord dia More than 6 4 mm 8 5 mm or less Cord dia More than 8 5 mm 10 8 mm or less 4 Lubrication Nippeco SEP 3A grease ...

Страница 18: ... Screw D5 x 65 2 3 43 0 49 N m 35 5 kgf cm Tapping Screw W Flange D4 14 25 1 96 0 49 N m 20 5 kgf cm Brush Cap 31 0 98 to 1 47 N m 10 to 15 kgf cm Hex Socket Set Screw M5 x 8 16 0 48 to 0 98 N m 5 to 10 kgf cm 6 Wiring diagram To prevent rotation failure or reverse rotation be very careful to ensure that wiring is done properly as illustrated below Fig 11 12 13 and 14 6 1 Type I Switch Cord lead w...

Страница 19: ...t the internal wires in the joint of the handle 3 Measurement of insulation resistance and dielectric strength On completion of disassembly and repair measure the insulation resistance and conduct dielectric strength test Insulation resistance 7 M Ω or more Dielectric strength AC 4000V 1 minute with no abnormalities 220 V 240 V products AC 2500V 1 minute with no abnormalities 110 V 120 V products ...

Страница 20: ...le CM 4SB2 Work Flow Tail Cover Handle Cover Cord Cord Armor Housing Ass y Stator Ass y Armature Ball Bearing 608VV Ball Bearing 629VV Bearing Bushing General Assembly Pinion Gear Cover Spindle and Gear Set Bearing Holder Bearing Cap Ball Bearing 606VV Ball Bearing 6002VV Base Ass y ...

Страница 21: ...0 CUTTER Model CM 4SB2 2006 2 13 E1 Hitachi Power Tools 21 20 19 1 2 3 4 7 9 10 11 501 502 503 504 12 17 18 14 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 8 13 505 5 6 14 15 16 56 ...

Страница 22: ...CORD 13 325 516 HOUSING ASS Y 1 INCLUD 16 29 14 302 086 TAPPING SCREW W FLANGE D4X20 BLACK 5 15 NAME PLATE 1 16 938 477 HEX SOCKET SET SCREW M5X8 2 17 317 751 MACHINE SCREW W WASHERS M5X25 3 18 325 522 TAIL COVER 1 19 325 524 RUBBER RING 1 20 325 956 RUBBER WASHER 1 21 325 523 BEARING BUSHING 1 22 994 273 NOISE SUPPRESSOR 1 FOR NZL CHN TPE 23 980 063 TERMINAL 2 FOR NOISE SUPPRESSOR 24 938 108 TERM...

Страница 23: ... M7 1 43 325 517 PINION 1 44 629 VVM BALL BEARING 629VVC2PS2L 1 45 958 915 WASHER A 1 46 360 751C ARMATURE 110V 1 46 360 751U ARMATURE ASS Y 120V 1 INCLUD 6 7 44 45 46 360 751E ARMATURE 220V 1 46 360 751F ARMATURE 230V 240V 1 47 325 638 SEAL LOCK SCREW W SP WASHER M5X20 2 48 949 874 ROLL PIN D6X36 10 PCS 1 49 325 528 BASE 1 50 949 425 WASHER M6 10 PCS 1 51 325 529 LINK LEVER 1 52 942 827 RETAINING...

Страница 24: ...2 DIAMOND WHEEL SEGMENT 106MM D20 HOLE 1 602 939 586 DIAMOND WHEEL RIM 100MM D20 HOLE 1 603 939 587 DIAMOND WHEEL RIM 110MM D20 HOLE 1 Printed in Japan 060213N 501 941 057 WRENCH HEX SOCKET 10 19 2MM 1 502 940 543 BOX WRENCH 10MM 1 503 303 648 WATER PLUG 1 EXCEPT FOR USA CAN CHN 504 956 885 RUBBER CONNECTOR 1 EXCEPT FOR USA CAN CHN 505 956 883 HOSE 1 EXCEPT FOR USA CAN CHN ...

Страница 25: ......

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