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8-2. Idling-proof Mechanism

When the bull point is released from the concrete surface, the second hammer moves to the position illustrated in

Fig. 6, and the striker moves out of striking position. When this occurs, the air holes are opened and the pressure

within the air chamber remains unchanged even though the piston continues to reciprocate, thereby preventing

striking operation.

Fig. 6

Air
chamber

Striker

Second hammer

Forward movement of
second hammer & striker

Air hole

8-3. Shock-absorbing Mechanism

At the instance of releasing the tool from the workpiece by moving the main body up, the second hammer

contacts hammer holder (B) then the cushion (damper (B)) provided between the hammer holder (B) and the front

cover absorbs the striking force of the second hammer. In addition, the tool contacts the needle roller then the

cushion (damper (C)) provided between the retainer sleeve and the front cover absorbs the striking force of the

tool when it pops up. Thus the durability of the Models H 60MR and H 60MRV is increased greatly because the

tool and the second hammer do not strike the tool retainer directly.

Fig. 7

Second hammer

Hammer holder (B)

Tool

Retainer sleeve

Damper (B)

Damper (C)

Needle roller

Содержание H 60MRV

Страница 1: ...AL DATA AND SERVICE MANUAL DEMOLITION HAMMER H 60MR H 60MRV SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos H 60MR E483 H 60MRV E484 Mar 2005 H MODELS H 60MR H 60MRV Hitachi Power Tools ...

Страница 2: ...L DATA AND SERVICE MANUAL symbols are used in the place of company names and model names of our competitors The symbols utilized here are as follows Symbols Utilized Competitors Company Name Model Name BOSCH GSH11E B MAKITA HM1202C C ...

Страница 3: ...PROMOTION 8 7 1 Handling Instructions 8 7 2 Caution Plate 8 7 3 Grease Replacement 8 7 4 O ring Replacement 9 8 REFERENCE INFORMATION 9 8 1 Striking Operation 9 8 2 Idling proof Mechanism 10 8 3 Shock absorbing Mechanism 10 8 4 Sealed and Dustproof Construction 11 8 5 Vibration Absorbing Construction 11 8 6 Tool Retainer 12 8 7 Adjusting Mechanism for the Tool Swivel Angle 12 8 8 Side Handle 12 9 ...

Страница 4: ...g mechanism results in prolonged service life 6 Simply turning method variable lock mechanism for easy working angle adjustment of chisels etc 7 Constant speed and variable speed control Model H 60MRV only 8 A very original design 3 APPLICATIONS Demolishing and chiseling of concrete Edging gravel road digging compacting and tamping grooving cutting stripping and roughing etc 4 SELLING POINTS High ...

Страница 5: ...sure a soft touch and firm non slip grip of the handles 4 1 4 D type side handle with adjustable mechanism for 360û rotation plus positioning from front to rear The D type side handle can be adjusted by 360û rotation and also allows convenient operation from front to rear This side handle has a two layer plastic construction integral molding made of nylon resin as the base and soft resin around it...

Страница 6: ... Aluminum alloy die casting Nylon resin Crank cover crank case cover back cover tail cover and handle Paint Silver green metallic green gray and black Trigger switch with stopper D shaped handle and side handle 1 350 W 11 8 A 120 V 6 2 A 230 V 13 6 A 110 V 12 5 A 120 V 6 5 A 230 V 6 3 A 240 V No load 2 160 min 1 No load 930 to 1 840 min 1 Full load 1 650 min 1 Full load 930 to 1 650 min 1 Product ...

Страница 7: ...shank type 3 Cutting and stripping work asphalt cutting etc 1 Cutter SDS max shank type 4 Digging substitute pick ax Overall length 280 mm 11 1 32 400 mm 15 3 4 Code No 313473 313474 Overall length 280 mm 11 1 32 400 mm 15 3 4 Overall length 400 mm 15 3 4 Width 50 mm 2 Code No 313475 Overall length 400 mm 15 3 4 Code No 313476 1 Scoop SDS max shank type ...

Страница 8: ...erall length 220 mm 8 21 32 Code No 313479 1 Rammer 2 Shank SDS max shank type Code No 313478 150 mm x 150 mm 7 Grease for impact drill 500 g 1 1 lbs Can Code No 980927 70 g 2 5 oz Tube Code No 308471 30 g 1 oz Tube Code No 981840 NOTE Code numbers listed above are subject to change without notice Please refer to periodic Technical News Bulletins ...

Страница 9: ...rmance Comparison The data shown in Fig 2 are obtained in actual factory tests and are for reference only Demolished amount may vary in accordance with operating conditions operator skill etc dB A No load noise level Length Height Width mm mm mm 576 22 43 64 290 11 27 64 121 4 49 64 26 0 7 0 to 26 0 83 0 81 0 1 650 930 to 1 650 H 60MA 1 300 122 5 Double insulation 94 0 10 5 23 1 lbs H 60MB 576 22 ...

Страница 10: ...ison The graph shown in Fig 3 illustrates the relationship between handle pressing force and handle vibration level in the Z direction 6 4 Full load and No load Noise Level Comparison The graph shown in Fig 4 illustrates the relationship of the noise levels at actual load operation and no load operation measured 1 m away from the main body Fig 3 Fig 4 Nosie level dB A ...

Страница 11: ...mer during sales promotion 7 2 Caution Plate Each unit of the Models H 60MR and H 60MRV is provided with a Caution Plate illustrated below which lists basic safety precautions in use Carefully ensure that the customer fully understands and follows these precautions before using the tool For the U S A and Canada For Australia New Zealand and India 7 3 Grease Replacement The striking portion and the...

Страница 12: ...onnecting rod which in turn cause the piston to reciprocate inside the cylinder As the piston reciprocates the changing air pressure inside the air chamber between the piston and the striker causes the striker to continuously strike against the end of the second hammer At the same time the air cushion effect within the air chamber absorbs the impact of the striker Should the air escape from the ai...

Страница 13: ...Mechanism At the instance of releasing the tool from the workpiece by moving the main body up the second hammer contacts hammer holder B then the cushion damper B provided between the hammer holder B and the front cover absorbs the striking force of the second hammer In addition the tool contacts the needle roller then the cushion damper C provided between the retainer sleeve and the front cover a...

Страница 14: ...transmitted from the main body to the arms of the operator is considerably less in comparison with conventional hammers Construction of vibration absorbing unit The main body crank case and housing and the handle are connected through four cylindrical rubbers handle dampers Vibration is absorbed by the rolling and compression of the four rubbers on inclined surfaces Because the vibration absorbing...

Страница 15: ...ont cap Tool shank 8 7 Adjusting Mechanism for the Tool Swivel Angle The tool swivel angle can be easily changed in 12 steps The tool swivel angle can be set freely to the desired position by pushing out grip B ahead in A direction and then turning grip A in B or C direction Fig 11 Fig 11 Grip A Grip B 8 8 Side Handle The side handle can be adjusted by 360û rotation and also allows operation from ...

Страница 16: ...2 Fig 14 Furthermore remove the Seal Lock Hex Socket Hd Bolts M8 x 25 11 fixing the Front Cover 12 then the Retainer Sleeve 14 Damper C 104 Front Cover 12 Hammer Holder B 18 Damper B 17 Second Hammer 19 Hammer Holder A 20 Damper A 21 and Damper Washer 22 can be removed from the Cylinder Case 24 Retaining Ring D42 6 Needle Holder 4 Needle Roller D8 x 20 13 9 1 1 Disassembly Tool retainer disassembl...

Страница 17: ... x 16 36 fixing the Crank Cover 37 Remove the Crank Case Cover 82 and the Crank Cover 37 from the Crank Case 34 in order as shown in Fig 15 Remove the Hex Socket Hd Bolts W Flange M8 x 30 25 fixing the Cylinder Case 24 and disassemble the Cylinder Case 24 from the Crank Case 34 As the Piston 30 remains in the Crank Case 34 side remove the Retaining Ring for D14 Shaft 32 to remove the Connecting Ro...

Страница 18: ...ve of the Crank Shaft 38 and press fit the First Gear 54 with a suitable tool while holding the flat portion of the Crank Shaft 38 with a steel bar Before press fitting make sure that the Feather Key 3 x 3 x 10 39 fits in the key groove of the First Gear 54 Fig 17 Fig 17 Crank Case 34 Oil Seal 52 Bearing Cover 41 First Gear 54 Feather Key 3 x 3 x 10 39 Distance Ring C 53 Seal Lock Hex Socket Hd Bo...

Страница 19: ...the hex socket hd bolts for M8 that secure the front cover and the hex socket hd bolts w flange for M8 that secure the cylinder case are special bolts they cannot be re used if removed Use fresh service parts only CAUTION If bolts are loosened by vibration it could cause damage to the hammer body Ensure without fail that screw locking agent is applied to threaded portions prior to reassembly 9 1 4...

Страница 20: ...circuit ass y 1 For products with noise suppressor Fig 19 2 For products without noise suppressor Fig 20 Black Black Black Yellow Wiring diagram of the Model H 60MRV products with control circuit ass y 110 V 230 V 240 V 120 V USA Black White White Yellow Internal wire Voltage A B Fig 21 ...

Страница 21: ...tch B 1P Screw Type W Lock 88 Handle A 89 Pillar Terminal 95 Sleeve B 79 Internal Wire 235L 72 Noise Suppressor 75 Vinyl Tube I D 9 5 x T0 56 x 85 80 Connector 50091 74 Fig 22 Connector 50092 99 Cord Switch B 1P Screw Type W Lock 88 Pillar Terminal 95 Vinyl Tube I D 9 5 x T0 56 x 85 80 ...

Страница 22: ...mature Ass y 60 Dial 9 x 10 hole Sleeve B 75 Fig 23 14 x 16 hole Cord Internal wire of the controller circuit Pillar Terminal 95 Vinyl Tube 76 Internal wire of the stator ass y Controller Circuit 78 Case B 77 Tabs Controller Circuit 78 Dial hole Tabs Internal Wire 79 Internal wire of the stator ass y Housing Ass y 67 Internal wire of the controller circuit Dial ...

Страница 23: ...ternal Wire 79 grounding wire through the 9 x 10 hole of Case B 77 Insert the two internal wires of the Stator Ass y B 63 into the two tabs at the upper portion of the Controller Circuit 78 and insert the Internal Wire 79 into the lower tab The upper two tabs have no relation in connecting position Put the two internal wires of the Controller Circuit 78 through the 14 x 16 hole at the upper portio...

Страница 24: ... Crank Case Tail Cover Front Cover Ball Holder Grip B Retainer Sleeve O ring x 3 Damper C Damper B Hammer Holder B Second Hammer Hammer Holder A Damper A Armature Ass y Ball Bearing 6203DD Ball Bearing 6201DD Handle A Handle B Controller Circuit H 60MRV Transatory Unit General Assembly Crank Cover O ring Crank Shaft Ball Bearing 6204DD Oil Seal First Gear Cylinder Case Gear Cover Ass y Needle Bear...

Страница 25: ...7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 25 24 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 81 82 83 45 84 85 86 87 88 89 92 93 85 86 100 101 102 103 90 91 98 90 91 90 91 94 48 49 48 50 51 54 55 56 57 58 59 61 62 63 64 65 66 67 68 69 70 79 72 12 52 53 60 80 97 71 95 99 96 73 74 75 76 77 78 90 91 501 502 503 ...

Страница 26: ...24 324 034 CYLINDER CASE 1 25 995 400 HEX SOCKET HD BOLT W FLANGE M8X30 4 26 956 996 O RING 1AS 60 1 27 324 033 STRIKER 1 28 985 454 O RING A FPM810 2 29 301 509 PISTON PIN 1 30 317 084 PISTON 1 31 317 082 CONNECTING ROD 1 32 939 543 RETAINING RING FOR D14 SHAFT 10 PCS 1 33 301 567 SEAL LOCK HEX SOCKET HD BOLT M6X55 4 34 324 035 CRANK CASE 1 35 324 056 SEAL LOCK HEX SOCKET HD BOLT M6X35 2 36 990 0...

Страница 27: ... 122 INTERNAL WIRE 235L 1 EXCEPT FOR USA CAN 73 VINYL TUBE I D 7XT0 5X30 2 FOR USA CAN 74 959 140 CONNECTOR 50091 10 PCS 1 EXCEPT FOR USA CAN 75 994 273 NOISE SUPPRESSOR 1 EXCEPT FOR USA CAN 76 317 492 SUPPORT B 1 EXCEPT FOR USA CAN 77 324 041 TAIL COVER 1 78 317 245 SEAL LOCK HEX SOCKET HD BOLT M5X22 2 79 324 045 SLEEVE B 1 80 VINYL TUBE I D 9 5XT0 56X85 1 81 HITACHI LABEL 1 82 324 036 CRANK CASE...

Страница 28: ... CAN 104 324 130 DAMPER C 1 501 313 471 BULL POINT SDS MAX 280L 1 502 872 422 HEX BAR WRENCH 6MM 1 503 324 049 CASE PLASTIC 1 601 981 840 GREASE A FOR HAMMER HAMMER DRILL 30G 1 602 308 471 GREASE FOR HAMMER HAMMER DRILL 70G 1 603 980 927 GREASE FOR HAMMER HAMMER DRILL 500G 1 EXCEPT FOR USA CAN 604 313 471 BULL POINT SDS MAX 280L 1 605 313 472 BULL POINT SDS MAX 400L 1 606 313 473 COLD CHISEL SDS M...

Страница 29: ...3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 25 24 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 79 81 82 83 45 84 85 86 87 88 89 90 91 92 93 85 86 95 98 99 100 101 90 91 97 90 91 90 91 94 48 49 48 50 51 54 55 56 57 58 59 61 62 63 64 65 66 67 68 69 70 72 75 77 78 73 74 12 52 53 60 76 96 71 501 502 503 ...

Страница 30: ... 24 324 034 CYLINDER CASE 1 25 995 400 HEX SOCKET HD BOLT W FLANGE M8X30 4 26 956 996 O RING 1AS 60 1 27 324 033 STRIKER 1 28 985 454 O RING A FPM810 2 29 301 509 PISTON PIN 1 30 317 084 PISTON 1 31 317 082 CONNECTING ROD 1 32 939 543 RETAINING RING FOR D14 SHAFT 10 PCS 1 33 301 567 SEAL LOCK HEX SOCKET HD BOLT M6X55 4 34 324 035 CRANK CASE 1 35 324 056 SEAL LOCK HEX SOCKET HD BOLT M6X35 2 36 990 ...

Страница 31: ...0 1DD BALL BEARING 6201DDCMPS2L 1 67 324 040 HOUSING ASS Y 1 INCLUD 70 71 68 940 540 BRUSH CAP 2 69 999 074 CARBON BRUSH AUTO STOP TYPE 1 PAIR 2 70 956 984 BRUSH HOLDER 2 71 938 477 HEX SOCKET SET SCREW M5X8 2 72 317 087 MAGNET 1 73 324 041 TAIL COVER 1 74 317 245 SEAL LOCK HEX SOCKET HD BOLT M5X22 2 75 324 045 SLEEVE B 1 76 322 530 VINYL TUBE 1 77 317 100 CASE B 1 78 324 050 CONTROLLER CIRCUIT 11...

Страница 32: ...RD 1 CORD ARMOR D8 8 FOR SIN 101 500 465Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 101 500 446Z CORD 1 CORD ARMOR D8 8 FOR GBR 230V 101 500 391Z CORD 1 CORD ARMOR D8 8 FOR SUI 101 500 235Z CORD 1 CORD ARMOR D8 8 FOR IND 102 324 130 DAMPER C 1 501 313 471 BULL POINT SDS MAX 280L 1 502 872 422 HEX BAR WRENCH 6MM 1 503 324 049 CASE PLASTIC 1 601 981 840 GREASE A FOR HAMMER HAMMER DRILL 30G 1 602 308 471 G...

Страница 33: ......

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