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13

DH50MR

ITEM

NO.

PART NAME

Q’TY

1

FRONT CAP

1

2

GRIP

1

3

STOPPER RING

1

4

NEEDLE HOLDER

1

5

RETAINER SPRING

1

6

SPRING HOLDER

1

7

SEAL LOCK HEX SOCKET HD. BOLT M8

×

25

4

8

FRONT COVER

1

9

O-RING (S-70)

1

10

OIL SEAL (NBR710)

1

11

URETHANE RING

1

12

URETHANE RING HOLDER

1

13

RETAINING RING D40

1

14

BALL BEARING 6008CM

1

15

SLEEVE

1

16

THRUST WASHER (A)

1

17

RETAINER DAMPER

1

18

NEEDLE ROLLER D8

×

20

2

19

RETAINER SLEEVE

1

20

O-RING

1

21

SECOND HAMMER

1

22

DAMPER WASHER

1

23

DAMPER

1

24

DAMPER HOLDER

1

25

NEEDLE PIN D8

×

6

4

26

CYLINDER

1

27

LOCK SPRING

1

28

LOCK SLEEVE

1

29

SPRING HOLDER (B)

1

30

CLUTCH SPRING

1

31

STRIKER

1

32

O-RING

2

33

CLUTCH

1

34

PISTON PIN

1

35

PISTON

1

36

CONNECTING ROD

1

37

CYLINDER CASE

1

38

HEX. SOCKET HD. BOLT (W/FLANGE) M8

×

35

4

39

O-RING (D)

1

40

THRUST WASHER (B)

1

41

BEVEL GEAR

1

42

LEVER LABEL

1

43

SEAL LOCK HEX. SOCKET HD. BOLT M4

×

12

1

44

CHANGE LEVER

1

45

LEVER HOLDER

1

46

LEVER SPRING

1

47

PUSHING BUTTON

1

48

PIN D2

×

10

1

49

RETAINING RING FOR D20 HOLE

1

50

LEVER SHAFT

1

51

O-RING (P-16)

1

52

SIDE HANDLE

1

53

BACK COVER

1

54

HEX. SOCKET HD. BOLT (W/FLANGE) M5

×

14

2

55

HANDLE HOLDER

1

56

HANDLE (A). (B) SET

1

57

HANDLE BOLT

1

58

STOPPER ROD

1

59

HOOD

1

60

HITACHI LABEL

2

61

HEX. SOCKET HD. BOLT (W/FLANGE) M5

×

12

1

62

NAME PLATE

1

63

TAPPING SCREW (W/FLANGE) D5

×

30

4

64

GUIDE PLATE

1

65

HANDLE RUBBER

1

66

TAPPING SCREW (W/FLANGE) D5

×

25

2

67

SEAL LOCK HEX. SOCKET HD. BOLT M5

×

16

6

68

DISTANCE PIECE (B)

4

69

TAPPING SCREW (W/FLANGE) D4

×

25

3

70

SWITCH (B)

1

71

PILLAR TERMINAL

1

72

TERMINAL

1

73

CORD ARMOR

1

ITEM

NO.

PART NAME

Q’TY

74

TAPPING SCREW (W/FLANGE) D4

×

16

4

75

CORD CLIP

1

76

CORD

1

77

CYLINDER O-RING (I.D 69.3)

1

78

RETAINING RING FOR D12 SHAFT

1

79

CRANK SHAFT

1

80

FEATHER KEY 3

×

3

×

25

1

81

RETAINING RING FOR D47 HOLE

1

82

BALL BEARING 6204DDCMPS2L

1

83

O-RING (B)

1

84

OIL SEAL

1

85

HEX. SOCKET HD. BOLT (W/FLANGE) M5

×

16

4

86

CRANK COVER

1

87

FEATHER KEY 3

×

3

×

8

1

88

BEVEL PINION

1

89

COLLAR

1

90

OIL SEAL

1

91

BALL BEARING 6202DDCMPS2L

1

92

WASHER

1

93

WASHER (A)

1

94

GEAR HOLDER

1

95

SPRING (C)

8

96

NEEDLE PIN D6

×

6

8

97

SECOND GEAR

1

98

SPACER

1

99

BALL BEARING 629VVC2PS2L

1

100

BEARING WASHER (C)

1

101

SLIP CLUTCH ASS'Y

1

102

SEAL PACKING

1

103

GEAR COVER

1

104

SEAL LOCK HEX. SOCKET HD. BOLT M6

×

45

4

105

CRANK CASE

1

106

FIRST GEAR

1

107

SECOND PINION

1

108

NEEDLE BEARING (M661)

1

109

HEX. HD. TAPPING SCREW D5

×

50

2

110

STATOR ASS'Y

1

111

BRUSH TERMINAL

2

112

SEAL LOCK HEX. SOCKET HD. BOLT M6

×

22

2

113

GUIDE PLATE

1

114

HANDLE RUBBER

1

115

BALL BEARING 6202DDCMPS2L

1

116

DUST WASHER (B)

1

117

FAN

1

118

ARMATURE ASS'Y

1

119

FAN GUIDE

1

120

TUBE (D)

2

121

BEARING WASHER

1

122

BALL BEARING 6201VVCMPS2L

1

123

MAGNET

1

124

HOUSING ASS'Y

1

125

BRUSH CAP

2

126

CARBON BRUSH

2

127

BRUSH HOLDER

2

128

HEX. SOCKET SET SCREW M5

×

8

2

129

BEARING HOLDER

1

130

TAIL COVER

1

131

CASE (B)

1

132

CONTROLLER CIRCUIT

1

133

INTERNAL WIRE

1

134

VINYL TUBE

1

501

GREASE (A) FOR HAMMER.HAMMER DRILL (30G)

1

502

CASE (PLASTIC)

1

 02Back_DH50MRY_ENG

07/8/8, 19:06

13

Summary of Contents for DH 50MR

Page 1: ...using this Electric Power Tool carefully read through these HANDLING INSTRUCTIONS to ensure efficient safe operation It is recommended that these INSTRUCTIONS be kept readily available as an important reference when using this power tool 001Cover_DH50MRY_ENG 07 8 8 19 08 1 ...

Page 2: ... picking up or carrying the tool Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents d Remove any adjusting key or wrench before turning the power tool on A wrench or a key left attached to a rotating part of the power tool may result in personal injury e Do not overreach Keep proper footing and balance at all times This enables b...

Page 3: ...rill bit taper shank No 1 11 12 3 12 7 14 3 14 5 17 5 mm ROTARY HAMMER SAFETY WARNINGS 1 Wear ear protectors Exposure to noise can cause hearing loss 2 Use auciliary handle s if supplied with the tool Loss of control can cause personal injury 3 Hold power tool by insulated gripping surfaces when performing an operation where the cutting accessory may contact hidden wiring or its own cord Cutting a...

Page 4: ...accessories PRIOR TO OPERATION 1 Power source Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate 2 Power switch Ensure that the power switch is in the OFF position If the plug is connected to a power receptacle while the power switch is in the ON position the power tool will start operating immediately which could cause a serious accid...

Page 5: ...ry Fig 5 Tool shank Grease Tool Part of SDS max shank Front cap Grip Dial Fig 1 2 To attach the tool SDS max shank insert it into the hole until it contacts the innermost end of the hole as illustrated in Fig 2 If you continue to turn the tool with slight pressure you can feel a spot where there is a hitch At that spot pull the grip to the direction of an arrow mark and insert the tool all the way...

Page 6: ...ammering 1 Switching to hammering a Push the button release lock and turn the selector lever counterclockwise b Align of the selector lever and of the lever holder as illustrated in Fig 7 c Release the button to lock the selector lever Fig 7 Fig 8 c Turn the grip as illustrated in Fig 9 and fix the tool to the desired working direction Fig 9 d Switch the selector lever to hammering according to th...

Page 7: ...s such as drill chuck and chuck adapter are attached Use it with the selector lever positioned at rotation hammering CAUTION During operation be sure to grip the handle and the side handle firmly to prevent your body from swaying 1 Switching to rotation hammering For switching to rotation hammering follow the same procedures mentioned in 3 When drilling at rotation hammering 2 Attaching chuck adap...

Page 8: ...t tip When the position of the concave is shifted by turning the guide plate right or left the guide plate never slips off even when the drill is used in a downward direction Fig 17 Fig 17 2 Drilling holes 1 Insert the plug into a receptacle 2 A spring is built in the center pin By straightly and gently pressing it to the wall or floor surface the entire surface of the core bit tip attains contact...

Page 9: ...s abrasion is noted 2 Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened Should any of the screws be loose retighten them immediately Failure to do so could result in serious hazard 3 Maintenance of the motor The motor unit winding is the very heart of the power tool Exercise due care to ensure the winding does not become damaged and or...

Page 10: ...10 DH50MRY 02Back_DH50MRY_ENG 07 8 8 19 06 10 ...

Page 11: ...NAL 1 72 TERMINAL 1 73 CORD ARMOR 1 ITEM NO PART NAME Q TY 74 TAPPING SCREW W FLANGE D4 16 4 75 CORD CLIP 1 76 CORD 1 77 CYLINDER O RING I D 69 3 1 78 RETAINING RING FOR D12 SHAFT 1 79 CRANK SHAFT 1 80 FEATHER KEY 3 3 25 1 81 RETAINING RING FOR D47 HOLE 1 82 BALL BEARING 6204DDCMPS2L 1 83 O RING B 1 84 OIL SEAL 1 85 HEX SOCKET HD BOLT W FLANGE M5 16 4 86 CRANK COVER 1 87 CYLINDER O RING B 2 88 WEI...

Page 12: ...12 DH50MR 02Back_DH50MRY_ENG 07 8 8 19 06 12 ...

Page 13: ...SOCKET HD BOLT M5 16 6 68 DISTANCE PIECE B 4 69 TAPPING SCREW W FLANGE D4 25 3 70 SWITCH B 1 71 PILLAR TERMINAL 1 72 TERMINAL 1 73 CORD ARMOR 1 ITEM NO PART NAME Q TY 74 TAPPING SCREW W FLANGE D4 16 4 75 CORD CLIP 1 76 CORD 1 77 CYLINDER O RING I D 69 3 1 78 RETAINING RING FOR D12 SHAFT 1 79 CRANK SHAFT 1 80 FEATHER KEY 3 3 25 1 81 RETAINING RING FOR D47 HOLE 1 82 BALL BEARING 6204DDCMPS2L 1 83 O ...

Page 14: ...14 02Back_DH50MRY_ENG 07 8 8 19 06 14 ...

Page 15: ...15 02Back_DH50MRY_ENG 07 8 8 19 06 15 ...

Page 16: ...308 Code No C99166612 N Printed in Japan Hitachi Koki Co Ltd Shinagawa Intercity Tower A 15 1 Konan 2 chome Minato ku Tokyo Japan 02Back_DH50MRY_ENG 7 19 13 4 06 PM 16 ...

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