Zenoah BK3500FL User Manual

T1232-93120 (305)

BRUSHCUTTERS

May 2003

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.]

BK4500FL

(SOUTH AMERICA)

APPLICABLE SERIAL NUMBERS:

300101 and up

Fig.1 DRIVE UNIT & ACCESSORIES

BK4500FL

1 T3217-12100 PIPE-COMP 1

ø26xL1500(t1.5)
23180-11321 • BUSHING 6
36129-12120 • BEARING-COMP 1
46129-12210 SHAFT 1 ø7x1468
56129-12220 SHAFT, JOINT 1
66129-12230 CLAMP 1
70263-10510 SCREW 1
8 01252-30520 BOLT 1
93530-13906 GEARCASE ASSY 1

10 3541-13194 • GEARCASE 1
11 06000-06000 • BEARING 2
12 06000-06201 • BEARING 1
13 04065-03212 • RING 1
14 3180-13141 • SEAL 1
15 4050-13210 • SHAFT, gear 1
16 3180-13220 • GEAR 1
17 3579-33260 • BOLT 1
18 01643-30823 • WASHER 1
19 3310-43210 • WASHER 1
20 3530-13311 • PINION 1
21 06001-06000 • BEARING 1
22 3180-13330 • RING 1
23 04065-02612 • RING 1
24 01252-30510 • BOLT 1
25 3540-13260 • BOLT 1
26 3541-13241 • HOLDER(A) 1
27 3541-13251 • HOLDER(B) 1
28 00224-40610 • BOLT 1
29 T3217-14110 GRIP 1
30 T3241-12510 PLATE-NAME 1
31 6129-21000 SHAFT, FLEX-ASSY 1
32 6129-21110 • SHAFT-FLEX 1 ø7.8xL845
33 6129-21120 • LINER 1 ø22.5xL840
34 07000-12018 • O-RING 1 ø17.8xø2.4
35 T1154-35100 FRAME COMP 1
36 T1144-35200 PAD ASSY 1
37 5940-14350 • CRIP 4
38 T1144-35310 RING 2
39 0263-30514 SCREW 4
40 T1235-13110 PLATE-COMP 1
41 6129-51310 JOINT 3
42 1610-13120 NUT 6
43 0224-30625 BOLT 2
44 0280-10605 NUT 2
45 T1235-14400 CORD-COMP 1
46 6129-61210 BAND (T) 2
47 1600-72210 SWITCH 1
48 6129-72230 NUT 1

M8xP1.0(HEX:13)

49 T1154-35410 BRACKET 1
50 T1235-13310 BRACKET, ENGINE 1
51 3310-31720 BOLT 4
52 2091-13120 NUT 1
53 T1154-85000 TANK-ASSY 1
54 4570-85201 • CAP-A 1
55 4570-85230 • • CAP 1
56 1030-85141 • • ELEMENT 1
57 4500-85220 • • PACKING 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

58 T1154-85100 • JOINT-A 1
59 1400-85141 • • GROMMET 1
60 3063-22510 • • CLIP 1
61 T1154-86110 • • PIPE 1
62 3570-15311 • SPRING 1
63 3063-22510 • CLIP 1
64 1535-85520 BAND 2
65 T1154-37100 BAND ASSY 1
66 01252-30510 BOLT 1 M5x10
67 3541-13400 COVER ASSY 1
68 0263-30530 • SCREW 1 M5x30
69 3520-13284 COVER (T) 1
70 3541-24001 GUARD ASSY 1
71 3541-24112 • GUARD 1
72 3541-24121 • CLAMP 1
73 3540-24130 • BOLT 2 M6x30
74 0290-20615 • WASHER 2 M6
75 6298-14343 SAW 1
76 3540-93120 BAND 1
77 1088-82201 LEVER-ASSY 1
78 T3144-14300 HANDLE-ASSY 1
79 T3144-14310 • HANDLE (T) 1
80 0260-00530 • SCREW 3
81 0292-20510 • WASHER 3
82 0280-10504 • NUT 3
83 1000-91301 TANK-A 1
84 T3300-91000 TOOL-SET 1
85 09007-00425 • WRENCH 1
86 3073-91111 • WRENCH 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

Fig.1 DRIVE UNIT & ACCESSORIES

BK4500FL

Fig.2 Engine G43L

BK4500FL

14500-12110 CYLINDER 1
21850-12130 BOLT 4
34500-13120 GASKET, CYL 1
44500-21101 CRANKCASE-C 1
52629-21130 • PIN 3
64500-21140 GASKET, CASE 1
7 06030-06201 BEARING 2
84810-21210 SEAL 1

91650-21220 SEAL 1
10 01252-30530 BOLT 4
11 04065-03212 SNAPRING 1
12 4500-41110 PISTON 1
13 1400-41220 RING, PISTON 2
14 2850-41310 PIN 1
15 1300-41320 RING 2
16 T2100-41410 BEARING 1
17 2850-41510 WASHER 2
18 4500-42000 CRANKSHAFT-C 1
19 4500-51111 SHOE 2
20 4500-51220 SPRING 1
21 1200-51211 SCREW 2
22 1200-51230 WASHER 2
23 1200-51241 WASHER 2
24 T1153-71110 ROTOR 1
25 T1153-71200 COIL ASS’Y 1
26 4500-71220 • CORD 1
27 2616-71320 • CAP 1
28 T1153-71250 • PIN 2
29 5500-72130 • GROMMET 1
30 5500-72110 • CAP, plug 1
31 5500-72120 • SPRING 1
32 T1512-71320 • TUBE 1
33 3350-14150 BOLT 2 M4x20
34 1650-43230 NUT 1
35 1000-43240 KEY 1
36 4550-15110 MUFFLER 1
37 3310-31720 BOLT (STAY) 1
38 01252-30565 BOLT 2
39 4700-15211 GASKET,MUFFLER 1
40 4500-15221 PLATE 1
41 0263-90514 SCREW 1

43 3310-12281 BOLT 4
44 4500-31210 PLATE, VOLUTE 1
45 4550-32110 COVER, CYLINDER 1
46 4500-32120 SCREW 4
47 4500-32210 GUARD 1
48 1881-73110 SPARKPLUG 1 CJ-6Y
49 1852-72121 GROMMET 1
50 T1153-71240 CORD 1
51 1140-72231 CLAMP 1
52 4500-75100 RECOIL-A 1
53 4500-75120 • REEL 1
54 4500-75150 • SCREW 1
55 1850-75130 • SPRING 1
56 4500-75180 • COLLAR 1
57 4500-75190 • ARM 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

58 4500-75160 • ROPE 1
59 1140-75320 • KNOB 1
60 5500-75170 • PLATE 1
61 4500-75210 PULLEY 1
62 4500-75511 SCREW 4
63 4700-75310 COLLAR 1
64 4550-13160 INSULATOR 1
65 4500-13150 GASKET, INSU 1
66 4550-13130 GASKET, CARB 1
67 4550-81000 CARBURETOR-A 1
68 1650-81121 • CAP 1
69 1141-81120 • CAP 1
70 1335-81060 • SPRING 1
71 4550-81150 • VALVE 1
72 1335-81070 • RECEIVE 1
73 4550-81210 • NEEDLE 1
74 1030-81000 • CLIP 1
75 1400-81230 • JET NEEDLE 1
76 4550-81240 • JET 1
77 2751-81250 • SCREW 1
78 1650-81260 • SPRING 1
79 1335-81180 • FLOAT 1
80 1400-81320 • PACKING 1
81 1400-81310 • CHAMBER 1
82 1400-81340 • HINGE 1
83 1400-81350 • PIN 1
84 1400-81361 • VALVE 1
85 1400-81540 • O RING 1
86 1403-81500 • COCK 1
87 1400-81650 • SCREW 1
88 1400-81660 • PACKING 1
89 0260-10410 • SCREW 2
90 4550-81710 • PIPE 1
91 0260-10412 • SCREW 2
92 0263-90565 SCREW 2
93 1400-82002 CLEANER-A 1
94 1400-82113 • BODY 1
95 1400-82121 • COVER 1
96 1418-82130 • ELEMENT 1
97 1400-82141 • SCREEN 1
98 4550-82150 SCREW 2

99 1133-82060 LABEL 1
100 2193-86150 CLAMP 1
101 1660-31121 LABEL, COVER 1
102 T1274-75410 LABEL, RECOIL 1 BK4500FL
103 1475-83101 CABLE-C 1
104 T1153-31000 HOUSING-ASSY 1
105 T1153-31110 • HOUSING
106 06002-06001 • BEARING 1
107 04065-02812 • RING 1
108 6278-12311 • DRUM 1
109 04064-01210 • SNAP RING 1
110 T3087-12600 • STOPPER-C 1
111 4500-22110 GUARD 1
112 0263-90514 SCREW 1 M5x4

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

Fig.2 Engine G43L

BK4500FL

1-9 Minamidai, Kawagoe, Saitama, 350-1192 Japan

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