Hitachi CG 23EA (SL) User manual

TECHNICAL DATA
AND
SERVICE MANUAL
BRUSH CUTTER
CG 23EA (SL)
CG 32EA/CG 32EA (SL)
CG 42EA/CG 42EA (SL)
CG 51EA/CG 51EA (SL)
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST Nos. CG 23EA: E021
CG 32EA: E022
CG 42EA: E023
CG 51EA: E024
Feb. 2005
C
MODELS
CG 23EA (SL)
CG 32EA/CG 32EA (SL)
CG 42EA/CG 42EA (SL)
CG 51EA/CG 51EA (SL)
Hitachi 
Power Tools
CG 32EA
CG 32EA (SL)

ENGINE TOOL PARTS LIST
LIST NO. E021
BRUSH CUTTER
Model CG 23EA
2005
•
2
•
25
(E1)
Hitachi Power Tools
12
3
45
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
MAIN BODY

--- 2 --- 2 -- 05
CG 23EA
62
76
75
74
77
73
72
61
71
70
69
68
67
66
65
64
63
GEAR CASE

--- 3 ---2 -- 05
CG 23EA
101
102
103
104
107
105
106 108
109
110
111
112
113
114
115
116
117
118
119
118
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
138
137
139
140
141
142
143 144
145
146
147
142
148
149
150
151
152
153
154
156
157
158
159
168
160 161 162 163
164
167
165
166
169
170
155
ENGINE

--- 4 --- 2 -- 05
CG 23EA
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
221
220
217
218
219
215
216
214
222
223
224
225
226
227
501
502
503
504
505
506
226
CARBURETOR , FUEL TANK

*ALTERNATIVE PARTS --- 5 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 23EA
MAIN BODY
1 683-002 HANGING STRAP 1
2 682-976 CLUTCH CASE ASS’Y 1 INCLUD. 3-5
3 682-977 CLUTCH CASE 1
4 682-978 BEARING 6200ZZ 1
5 682-979 SNAP RING H30 1
6 682-981 CLUTCH DRUM 1
7 682-980 BOLT (W/WASHERS) M5X30 1
8 683-001 BOLT (W/WASHERS) M5X20 4
9 682-987 LOOP HANDLE ASS’Y 1 INCLUD. 10-13
10 682-990 SCREW (W/SP. WASHER) M5X28 4
11 682-988 LOOP HANDLE 1
12 682-989 PACKING (A) 1
13 949-555 NUT M5 (10 PCS.) 4
14 682-985 HANGING BRACKET ASS’Y 1 INCLUD. 15
15 682-986 BOLT M5X15 1
16 682-984 THROTTLE TRIGGER 1
17 682-982 DRIVE SHAFT 1
18 682-983 DRIVE SHAFT TUBE 1
19 CAUTION LABEL (A) 1
20 HITACHI LABEL 1
21 NOISE LABEL (A) 1
22 682-991 SAFETY GUARD ASS’Y 1 INCLUD. 23-25
23 682-994 BOLT (W/SP. WASHER) M6X30 2
24 682-992 BRACKET 1
25 682-993 THREADED BRACKET 1
26 949-555 NUT M5 (10 PCS.) 5
27 683-000 PLANE WASHER 5
28 682-995 STRING CUTTER ASS’Y 1 INCLUD. 29, 32-34
29 682-997 BOLT (W/WASHER) M5X25 2
30 682-999 BOLT (W/WASHERS) M5X15 5
31 682-998 EXTENSION 1
32 682-996 STRING CUTTER 1
33 949-454 SPRING WASHER M5 (10 PCS.) 2
34 949-555 NUT M5 (10 PCS.) 2
GEAR CASE
61 683-019 BOLT M5X12 1
62 683-003 GEAR CASE ASS’Y 1 INCLUD. 63-77
63 683-018 BOLT (LEFT HAND) W/WASHERS M8X22 1
64 683-017 STABILIZER 1
65 683-016 CLAMPING WASHER 1
66 683-015 BOSS ADAPTER 1
67 683-010 SNAP RING H28 1
68 683-009 BEARING 60012RK 1
69 683-008 BLADE SHAFT 1
70 683-006 BEARING 626 1
71 683-005 BOLT M6X8 1
72 683-014 BOLT (W/SP. WASHER) M5X25 1
73 683-004 GEAR CASE 1
74 683-011 BEARING 609Z 1
75 683-012 SNAP RING H9 1

*ALTERNATIVE PARTS--- 6 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 23EA
76 683-013 SNAP RING H24 1
77 683-007 GEAR SET 1
ENGINE
101 683-031 SCREW M5X50 2
102 683-030 MUFFLER COMP. 1
103 683-033 CAP SCREW M5X16 1
104 683-032 GASKET COMP. 1
105 683-035 KNOB 1
106 683-034 TOP COVER 1
107 683-085 SCREW M5X16 1
108 683-351 CE LABEL 1
109 683-068 SPARK PLUG (R) 1
110 683-024 CYLINDER 1
111 683-028 GASKET (B) 1
112 683-027 INSULATOR 1
113 683-029 SCREW M5X25 2
114 683-026 SCREW M5X20 2
115 683-025 GASKET (A) 1
116 683-042 PISTON RING 1
117 683-041 PISTON 1
118 683-045 CLIP (PISTON PIN) 2
119 683-043 PISTON PIN 1
120 683-054 MAGNETO ASS’Y 1 INCLUD. 121, 122
121 683-056 IGNITION COIL ASS’Y 1 INCLUD. 123, 127-129
122 683-055 ROTOR-FAN 1
123 683-058 CORD ASS’Y 1 INCLUD. 124-126
124 683-061 CONNECTOR 1
125 683-060 PLUG CAP 1
126 683-059 CORD 1
127 683-063 TUBE 1
128 683-062 CAP 1
129 683-057 COIL 1
130 683-067 CAP SCREW M4X25 2
131 683-066 SPACER 2
132 683-050 SPECIAL BOLT M6 2
133 683-052 WAVE WASHER 2
134 683-047 CLUTCH ASS’Y 1 INCLUD. 135, 136
135 683-049 SPRING CLUTCH 1
136 683-048 CLUTCH SHOE 2
137 683-065 NUT M8 1
138 683-051 WASHER 2
139 683-038 OIL SEAL (A) 1
140 683-036 CRANK CASE 1
141 683-010 SNAP RING H28 1
142 683-037 BEARING 6001C3 2
143 683-064 WOODRUFF KEY 1
144 683-044 NEEDLE BEARING 1
145 683-040 CAP SCREW M5X30 3
146 683-086 SCREEN 1
147 683-046 CRANK SHAFT AND CONN. ROD SET 1
148 683-039 OIL SEAL (B) 1

*ALTERNATIVE PARTS --- 7 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 23EA
149 683-069 LEAD 2
150 CAUTION LABEL (B) 1
151 683-053 FAN COVER 1
152 683-087 CAP SCREW M5X20 4
153 EMISSION LABEL (A) 1
154 683-070 GROMMET 1
155 683-088 CLAMP 1
156 683-084 SCREW 1
157 683-083 NUT M6 1
158 683-071 RECOIL STARTER ASS’Y 1 INCLUD. 159, 168
159 683-081 STARTER PULLEY 1
160 683-080 SPECIAL SCREW 1
161 683-079 SWING ARM 1
162 683-078 COLLAR 1
163 683-077 PULLEY 1
164 683-076 SPIRAL SPRING 1
165 683-075 STARTER ROPE 1
166 683-074 STARTER GRIP 1
167 683-073 ROPE ASS’Y 1 INCLUD. 165, 166
168 683-072 RECOIL ASS’Y 1 INCLUD. 160-164, 167
169 683-082 BOLT M4X16 3
170 NAME PLATE 1
CARBURETOR, FUEL TANK
191 683-104 GASKET (E) 1
192 683-089 CARBURETOR ASS’Y 1 INCLUD. 193-206
193 683-102 SWIVEL 1
194 683-103 SCREW M3X10 2
195 683-101 RING 1
196 683-090 O-RING (I.D. 1.8) 1
197 683-091 MAIN JET 1
198 683-092 GASKET (C) 1
199 683-093 DIAPHRAGM 1
200 683-094 PUMP BODY 1
201 683-095 GASKET (D) 1
202 683-096 DIAPHRAGM 1
203 683-097 PURGE BODY 1
204 683-098 PRIMER PUMP 1
205 683-099 PUMP COVER 1
206 683-100 SCREW M3X24 4
207 683-105 O-RING (I.D. 14.8) 1
208 683-106 AIR FILTER ASS’Y 1 INCLUD. 209-211
209 683-107 CASE 1
210 683-108 FILTER 1
211 683-109 CLEANER COVER 1
212 683-110 CAP SCREW M5X60 2
213 683-122 CLIP 1
214 683-111 FUEL TANK ASS’Y 1 INCLUD. 221-224
215 683-121 FUEL FILTER 1
216 683-122 CLIP 1
217 683-119 FUEL PIPE 3X5X140 1
218 683-118 GROMMET 1

OPTIONAL ACCESSORIES
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
*ALTERNATIVE PARTS--- 8 --- 2 -- 05
PARTS
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
CG 23EA
STANDARD ACCESSORIES
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
219 683-120 RETURN PIPE 3X6X85 1
220 683-117 PIPE ASS’Y 1 INCLUD. 217-219
221 683-116 FUEL PIPE ASS’Y 1 INCLUD. 215, 216, 220
222 683-115 BREATHER 1
223 683-112 FUEL TANK 1
224 683-113 FUEL TANK CAP ASS’Y 1 INCLUD. 225
225 683-114 PACKING (B) 1
226 683-123 PAD (A) 2
227 683-124 PAD (B) 1
501 683-020 SEMI-AUTOMATIC HEAD 4” 1
502 683-021 BOX SPANNER 1
503 683-022 DOUBLE-ENDED WRENCH 1
504 683-023 LEVER HANDLE 1
505 683-350 CUTTER BLADE 230MM-D25.4 HOLE-NT4 1
506 683-155 BLADE COVER 1
601 682-975 GREASE (100G) 1
Printed in Japan
(050225N)

ENGINE TOOL PARTS LIST
LIST NO. E022
BRUSH CUTTER
Model CG 32EA
2005
•
2
•
25
(E1)
Hitachi Power Tools
24
25
26
27
28
22
29
12
334
5
6
78
9
12
11 10
13
14
15
17
17
21
22 23
18
19
20
30
31
32
33
34
35
36
37
38
39 40
41
42
43
44
45
46
47
16
21
MAIN BODY

--- 2 --- 2 -- 05
CG 32EA
72
87
86
85
84
88
83
82
81
80
79
78
77
76
75
74
73
71
GEAR CASE

--- 3 ---2 -- 05
CG 32EA
111
112
113
114
115
116
119
117
118
125
120
121
122
123
124
126
127
128
129
130
131
130
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
153
154
155
156
154
157
158
160
162
163
165
166
167
168
169
170
171
172
173
174
175
176
177 178
161
152
159
164
ENGINE

--- 4 --- 2 -- 05
CG 32EA
201
202
203 204 205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
223
224
225
227
228
229
230
231 232
233
234
235
236
237
238
239
240
241
242
243
244
244
245
501
502
503
504
505
506
222
226
CARBURETOR , FUEL TANK

*ALTERNATIVE PARTS --- 5 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 32EA
MAIN BODY
1683-002 HANGING STRAP 1
2683-125 CLUTCH CASE ASS’Y 1 INCLUD. 3-9
3683-127 BEARING 6000ZZ 2
4683-128 SNAP RING H26 1
5683-132 DRIVE SHAFT TUBE ADAPTER 1
6683-129 BUFFER 1
7683-130 WASHER 1
8683-126 BEARING CASE 1
9683-131 SCREW (W/SP. WASHER) M5X15 4
10 683-001 BOLT (W/WASHERS) M5X20 4
11 683-014 BOLT (W/SP. WASHER) M5X25 1
12 682-981 CLUTCH DRUM 1
*13 683-140 HANDLE (B) ASS’Y 1 INCLUD. 14, 15 FOR CG 32EA
*14 683-142 THROTTLE TRIGGER 1 FOR CG 32EA
*15 683-141 HANDLE (B) 1 FOR CG 32EA
*16 683-136 HANDLE BRACKET ASS’Y 1 INCLUD. 17 FOR CG 32EA
*17 683-014 BOLT (W/SP. WASHER) M5X25 6 FOR CG 32EA
*18 683-137 HANDLE (A) ASS’Y 1 INCLUD. 19, 20 FOR CG 32EA
*19 683-138 HANDLE (A) 1 FOR CG 32EA
*20 683-139 HANDLE GRIP 1 FOR CG 32EA
21 682-985 HANGING BRACKET ASS’Y 1 INCLUD. 22
22 682-986 BOLT M5X15 1
*23 683-135 SHAFT GRIP 1 FOR CG 32EA
*24 682-987 LOOP HANDLE ASS’Y 1 INCLUD. 25-28 FOR CG 32EA (SL)
*25 682-990 SCREW (W/SP. WASHER) M5X28 4 FOR CG 32EA (SL)
*26 682-988 LOOP HANDLE 1 FOR CG 32EA (SL)
*27 682-989 PACKING (A) 1 FOR CG 32EA (SL)
*28 949-555 NUT M5 (10 PCS.) 4 FOR CG 32EA (SL)
*29 683-147 THROTTLE TRIGGER 1 FOR CG 32EA (SL)
30 683-133 DRIVE SHAFT 1
*31 683-134 DRIVE SHAFT TUBE 1 FOR CG 32EA
*31 683-146 DRIVE SHAFT TUBE 1 FOR CG 32EA (SL)
32 CAUTION LABEL (A) 1
33 HITACHI LABEL 1
34 NOISE LABEL (B) 1
35 683-143 SAFETY GUARD ASS’Y 1 INCLUD. 36-38
36 682-994 BOLT (W/SP. WASHER) M6X30 2
37 683-144 BRACKET 1
38 683-145 THREADED BRACKET 1
39 949-555 NUT M5 (10 PCS.) 5
40 683-000 PLANE WASHER 5
41 682-995 STRING CUTTER ASS’Y 1 INCLUD. 42, 45-47
42 682-997 BOLT (W/WASHER) M5X25 2
43 682-999 BOLT (W/WASHERS) M5X15 5
44 682-998 EXTENSION 1
45 682-996 STRING CUTTER 1
46 949-454 SPRING WASHER M5 (10 PCS.) 2
47 949-555 NUT M5 (10 PCS.) 2
GEAR CASE
71 683-019 BOLT M5X12 1

*ALTERNATIVE PARTS--- 6 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 32EA
72 683-148 GEAR CASE ASS’Y 1 INCLUD. 73-88
73 683-018 BOLT (LEFT HAND) W/WASHERS M8X22 1
74 683-017 STABILIZER 1
75 683-016 CLAMPING WASHER 1
76 683-015 BOSS ADAPTER 1
77 683-010 SNAP RING H28 1
78 683-009 BEARING 60012RK 1
79 683-153 BLADE SHAFT 1
80 683-151 BEARING 608 1
81 683-150 BOLT M8X10 (BLACK) 1
82 683-014 BOLT (W/SP. WASHER) M5X25 1
83 683-149 GEAR CASE 1
84 683-154 BEARING 609 1
85 683-011 BEARING 609Z 1
86 683-012 SNAP RING H9 1
87 683-013 SNAP RING H24 1
88 683-152 GEAR SET 1
ENGINE
111 EMISSION LABEL (B) 1
112 CAUTION LABEL (B) 1
113 683-164 CAP SCREW M5X55 2
114 683-161 MUFFLER COMP. 1
115 683-162 GASKET COMP. 1
116 683-033 CAP SCREW M5X16 1
117 683-166 KNOB 1
118 683-165 TOP COVER 1
119 683-351 CE LABEL 1
120 683-181 GROMMET 1
121 683-068 SPARK PLUG (R) 1
122 683-160 AIR DUCT 1
123 683-159 INSULATOR 1
124 683-029 SCREW M5X25 2
125 683-087 CAP SCREW M5X20 4
126 683-157 CYLINDER 1
127 683-158 GASKET (F) 1
128 683-172 PISTON RING 2
129 683-171 PISTON 1
130 683-175 CLIP (PISTON PIN) 2
131 683-173 PISTON PIN 1
132 683-054 MAGNETO ASS’Y 1 INCLUD. 133, 134
133 683-056 IGNITION COIL ASS’Y 1 INCLUD. 135, 139-141
134 683-055 ROTOR-FAN 1
135 683-058 CORD ASS’Y 1 INCLUD. 136-138
136 683-061 CONNECTOR 1
137 683-060 PLUG CAP 1
138 683-059 CORD 1
139 683-063 TUBE 1
140 683-062 CAP 1
141 683-057 COIL 1
142 683-067 CAP SCREW M4X25 2
143 683-066 SPACER 2

*ALTERNATIVE PARTS --- 7 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
2 -- 05
CG 32EA
144 683-050 SPECIAL BOLT M6 2
145 683-052 WAVE WASHER 2
146 683-177 CLUTCH ASS’Y 1 INCLUD. 147, 148
147 683-179 SPRING CLUTCH 1
148 683-178 CLUTCH SHOE 2
149 683-065 NUT M8 1
150 683-051 WASHER 2
151 683-169 OIL SEAL (C) 1
152 683-167 CRANK CASE 1
153 683-170 SNAP RING H32 1
154 683-168 BEARING 201C3 2
155 683-064 WOODRUFF KEY 1
156 683-174 NEEDLE BEARING 1
157 683-040 CAP SCREW M5X30 3
158 683-194 SCREEN 1
159 683-176 CRANK SHAFT 1
160 683-039 OIL SEAL (B) 1
161 683-069 LEAD 2
162 683-180 FAN COVER 1
163 683-087 CAP SCREW M5X20 4
164 683-088 CLAMP 1
165 683-182 RECOIL STARTER ASS’Y 1 INCLUD. 166, 170
166 683-190 STARTER PULLEY ASS’Y 1 INCLUD. 167-169
167 683-193 STARTER PULLEY 1
168 683-192 RETURN SPRING 1
169 683-191 RATCHET 1
170 683-183 RECOIL ASS’Y 1 INCLUD. 171-174
171 683-189 SPECIAL SCREW 1
172 683-188 REEL 1
173 683-187 SPIRAL SPRING 1
174 683-184 ROPE ASS’Y 1 INCLUD. 175, 176
175 683-186 ROPE 1
176 683-185 STARTER GRIP 1
177 683-163 CAP SCREW M4X16 4
178 NAME PLATE 1
CARBURETOR, FUEL TANK
201 683-104 GASKET (E) 1
202 683-195 CARBURETOR ASS’Y 1 INCLUD. 203-221
203 683-199 SCREW 1
204 683-083 NUT M6 1
205 683-197 SCREW M3X10 2
206 683-198 BRACKET 1
207 683-102 SWIVEL 1
208 683-201 WASHER M4.85 1
209 683-101 RING 1
210 683-200 FRAME 1
211 683-090 O-RING (I.D. 1.8) 1
212 683-196 JET MAIN 1
213 683-092 GASKET (C) 1
214 683-093 DIAPHRAGM 1
215 683-094 PUMP BODY 1

*ALTERNATIVE PARTS--- 8 --- 2 -- 05
PARTS CG 32EA
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
STANDARD ACCESSORIES
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
OPTIONAL ACCESSORIES
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
Printed in Japan
(050225N)
216 683-095 GASKET (D) 1
217 683-096 DIAPHRAGM 1
218 683-097 PURGE BODY 1
219 683-098 PRIMER PUMP 1
220 683-099 PUMP COVER 1
221 683-100 SCREW M3X24 4
222 683-202 AIR CLEANER ASS’Y 1 INCLUD. 223-229
223 683-207 SLEEVE 2
224 683-203 HOUSING 1
225 683-208 CHOKE VALVE 1
226 683-206 WASHER M6.5 1
227 683-209 PLATE 1
228 683-205 ELEMENT 1
229 683-204 AIR CLEANER COVER 1
230 683-110 CAP SCREW M5X60 2
231 683-122 CLIP 1
232 683-210 FUEL TANK ASS’Y 1 INCLUD. 233, 240-242
233 683-212 FUEL PIPE ASS’Y 1 INCLUD. 234, 238, 239
234 683-213 PIPE ASS’Y 1 INCLUD. 235-237
235 683-214 FUEL PIPE 1
236 683-118 GROMMET 1
237 683-120 RETURN PIPE 3X6X85 1
238 683-121 FUEL FILTER 1
239 683-122 CLIP 1
240 683-115 BREATHER 1
241 683-211 FUEL TANK 1
242 683-113 FUEL TANK CAP ASS’Y 1 INCLUD. 243
243 683-114 PACKING (B) 1
244 683-215 PAD (C) 2
245 683-216 PAD (D) 1
501 683-155 BLADE COVER 1
502 683-156 CUTTER BLADE 255MM-D25.4 HOLE-NT4 1
503 683-020 SEMI-AUTOMATIC HEAD 4” 1
504 683-021 BOX SPANNER 1
505 683-022 DOUBLE-ENDED WRENCH 1
506 683-023 LEVER HANDLE 1
601 682-975 GREASE (100G) 1

ENGINE TOOL PARTS LIST
LIST NO. E023
BRUSH CUTTER
Model CG 42EA
2005
•
2
•
25
(E1)
Hitachi Power Tools
12
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
21 22
45
38
39
40
41 46
47
48
49
50
51
52
53
54
55
56
57
58
44
42
43
10
23
24
25 26
27
6
7
8
28
10
30
12
29
31
32
33
34
35
36
37
MAIN BODY

--- 2 --- 2 -- 05
CG 42EA
GEAR CASE
72
89
88
87
86
90
85
84
83
82
81
80
79
78
77
76
75
74
73
71

--- 3 ---2 -- 05
CG 42EA
166
171
ENGINE
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
144
142
142
143
145
146
147
148
149
150
151
152
154
153
155
156
157
158
159
160
161
162
163
161
164
165
167
168
169 170
172
173
175
176
174
177 178
179
180
181
182
183
184
187
186
185 188
189
190 191 192
194
195
193