Zenoah Brush Cutter BC4300FWM User Manual

T1069-93120 (910)  
BRUSHCUTTERS  
BC4300FWM  
NOTE :  
1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement.  
2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any  
parts other than those specified by the company.  
3. When placing parts orders for repair and/or replacement, check if the model name and the serial  
number are applicable to those specified in the parts list, then use parts number described in the  
parts list.  
4. The contents described in the parts list are accurate as of the date and may change due to  
improvement.  
5. The parts for the machine shall be supplied ten (10) years after the machine is discontinued. [It is  
possible that some specific parts may be subject to change of their delivery term and list price  
within the limit of ten (10) years after the machine is discontinued. It is also possible that some  
parts may be available even after the limit of ten (10) years.]  
October 1999  
APPLICABLE SERIAL NUMBERS:  
900101 and up  
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BC4300FWM  
Fig.1 DRIVE UNIT & ACCESSORIES  
Q'TY  
Q'TY  
Key# PART NUMBER  
DESCRIPTION  
NOTE  
Key# PART NUMBER  
1638-84170 • SPRING  
1638-84180 • SPRING  
DESCRIPTION  
NOTE  
/UNIT  
/UNIT  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
6
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3540-11102 HOUSING-COMP  
3144-11150 • SEAL  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
3
0263-20610 • SCREW  
3540-11311 DRUM  
0263-60620 • SCREW  
1638-84190 • NUT  
4
5
06004-06202 BEARING  
04065-03515 RING  
0260-60535 • SCREW  
1638-84210 • NUT  
6
7
04064-01510 RING  
1638-84220 • SCREW  
3540-13283 COVER  
3140-13261 SHAFT  
8
3540-11410 SPACER  
6340-12101 PIPE-COMP  
3260-11410 RING  
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  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
6220-17201 HARNESS-ASS’Y  
6489-24000 GUARD-ASS’Y  
6489-24110 • GUARD  
6489-24200 • PLATE-COMP  
6489-24210 • • PLATE  
6489-24220 • • BRADE  
0277-10412 • • SCREW  
6489-24120 • PLATE  
01252-30516 • BOLT  
01601-20513 • WASHER  
3542-91000 TOOL-SET  
3541-91110 • BAG  
6340-12210 SHAFT  
6562-13000 GEARCASE-ASS’Y  
6562-13110 • GEARCASE  
06000-06000 • BEARING  
06000-06202 • BEARING  
3130-13141 • SEAL  
04065-03515 • RING  
01252-30510 • BOLT  
3540-13212 • SHAFT, gear  
3540-13220 • GEAR  
01643-31032 • WASHER  
3544-13280 • WASHER  
3540-13290 • BOLT  
1030-91340 • DRIVER  
3144-91160 • SOCKET  
09007-00425 • WRENCH  
09007-00528 • WRENCH  
3540-91110 • BAR  
3540-13311 • PINION  
06000-06001 • BEARING  
06001-06001 • BEARING  
3130-13270 • RING  
3540-91120 • SPANNER  
6468-91150 BOLT  
04065-02812 • RING  
3540-13260 • BOLT  
3523-17112 PROTECTOR  
3540-93120 BAND  
0224-40610 • BOLT  
6251-13240 • HOLDER(A)  
3540-13251 • HOLDER(B)  
3540-14900 BRACKET-ASS’Y  
3540-14910 • BRACKET  
3540-14920 • CAP-L  
6298-14343 SAW  
6251-15910 COVER, blade  
6465-14200 HANDLE-L  
6350-14230 HANDLE  
3540-14930 • CAP-U  
3540-14140 • ABSORBER  
3640-14150 • CLAMP-A  
3540-14160 • CLAMP-B  
01252-30525 • BOLT  
01252-30530 • BOLT  
6550-11420 HANGER  
0225-10616 BOLT  
3540-11441 BRACKET-COMP  
3540-11432 • BRACKET  
0224-00635 • BOLT  
3540-11460 • NUT  
01642-20608 • WASHER  
3540-11450 • SPACER  
0224-00625 • BOLT  
01642-20608 • WASHER  
T3046-12510 PLATE, name  
6425-12552 PLATE  
2175-84001 LEVER-ASS’Y  
1638-84130 • LEVER  
1638-84140 • LEVER  
1638-84150 • STOPPER  
1638-84160 • CLAMP  
2175-84301 • CABLE-C  
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BC4300FWM  
Fig.2 ENGINE UNIT  
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BC4300FWM  
Fig.2 ENGINE UNIT  
Q'TY  
Q'TY  
Key#  
PART NUMBER  
DESCRIPTION  
NOTE  
Key#  
PART NUMBER  
DESCRIPTION  
INSULATOR  
NOTE  
/UNIT  
/UNIT  
1
2
3
4
5
6
7
8
9
4500-12110  
3310-12281  
4500-13120  
4500-21100  
2629-21130  
4500-21140  
06030-06201  
4810-21210  
1650-21220  
01252-30530  
04065-03212  
4500-41110  
1400-41220  
2850-41310  
1300-41320  
2850-41410  
2850-41510  
4500-42000  
4500-51110  
4500-51220  
1200-51211  
1200-51230  
1200-51241  
4500-71110  
4570-71200  
4570-71220  
2616-71320  
3356-21130  
1900-72111  
1900-72120  
4500-72150  
1650-43230  
1000-43240  
4570-15110  
01252-30565  
3310-31720  
4570-15211  
4570-15220  
0263-90514  
4500-31110  
3310-12281  
4500-31210  
4570-32110  
4500-32120  
4570-31900  
4570-31920  
3356-32210  
0263-90520  
T1011-73200  
1140-72231  
5933-73110  
4500-75100  
4500-75120  
4500-75150  
1850-75130  
4500-75180  
4500-75190  
4500-75160  
1140-75320  
5500-75170  
4500-75210  
4500-75511  
4500-75310  
01643-30823  
CYLINDER  
BOLT  
1
4
1
1
3
1
2
1
1
4
1
1
2
1
2
1
2
1
2
1
2
2
2
1
1
1
1
2
1
1
2
1
1
1
2
1
1
1
1
1
4
1
1
3
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
1695-13161  
1695-13171  
4500-13150  
1695-13131  
0263-90530  
4570-81000  
4570-81150  
1695-81320  
1695-81180  
1614-81310  
1400-81660  
1400-81650  
1695-81240  
1861-81230  
1418-81210  
1
2
1
1
M5x20  
PIPE  
GASKET, base  
CRANKCASE COMP  
• PIN  
GASKET, case  
BEARING  
OIL SEAL  
OIL SEAL  
BOLT  
SNAP RING  
PISTON  
RING  
PIN  
RING  
BEARING  
WASHER  
CRANKSHAFT COMP  
SHOE, clutch  
SPRING  
SCREW  
WASHER  
WASHER  
ROTOR  
GASKET, insulator  
GASKET, carburetor  
SCREW  
CARBURETOR ASS'Y  
• VALVE  
• PACKING  
• FLOAT  
• CHAMBER  
• PACKING  
• SCREW  
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
M5x30  
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  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
M5x30  
• JET  
• JET  
• NEEDLE  
1030-81000-16 • CLIP  
1030-81000-17 • RECEIVE  
1038-81002-34 • PACKING  
1030-81000-14 • SPRING  
1141-81110  
1141-81120  
0263-10416  
1695-81290  
1695-81270  
1695-81280  
1695-81580  
1650-81260  
1695-81540  
1695-81250  
1220-81410  
1220-81420  
0263-00306  
1181-81210  
1695-81340  
1695-81360  
1179-81501  
1179-81211  
1179-81221  
4570-82000  
1400-82113  
4570-82120  
1418-82130  
1400-82141  
4550-82150  
1133-82060  
T1047-85000  
2133-85302  
4570-85230  
1030-85140  
4500-85220  
3317-57242  
1400-85104  
1400-85141  
1000-08050  
1410-86130  
3073-86130  
1600-86120  
1660-31121  
T1012-75410  
2634-31420  
• CAP  
• CAP  
• SCREW  
• SCREW  
• NUT  
COIL ASS'Y  
• CORD  
• CAP  
• BAND  
• WASHER  
• SPRING  
• O-RING  
• SCREW  
• PIPE  
• STAY  
• SCREW  
• PIN  
• PIN  
CAP, plug  
SPRING  
BOLT  
NUT  
KEY  
MUFFLER  
BOLT  
BOLT  
GASKET  
PLATE  
SCREW  
M4x22  
98  
99  
• HINGE  
M5x65  
M5x14  
• VALVE  
• COCK-A  
• BOLT  
• PACKING  
CLEANER-A  
• BODY  
• COVER  
• ELEMENT  
• SCREEN  
SCREW  
LABEL  
TANK-A  
• CAP-A  
• • CAP  
• • ELEMENT  
• • PACKING  
• • STOPPER  
• JOINT-A  
• • GROMMET  
• • TUBE  
• • CLIP  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
M5x14  
M5x20  
COVER  
BOLT  
PLATE  
COVER  
SCREW  
M5x12  
M5x20  
STAND-C  
• PACKING  
SCREW  
SCREW  
CORD-C  
CLAMP  
SPARKPLUG  
RECOIL ASS'Y  
• REEL  
• SCREW  
• SPRING, spiral  
• COLLAR  
• ARM  
CLIP  
SCREW  
LABEL, cover  
LABEL, recoil  
LABEL, CE  
M5x22  
• ROPE  
• KNOB  
• PLATE, stopper  
PULLEY  
SCREW  
M6x14  
PLATE  
WASHER  
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