Zenoah BK3400FT, BK3400FL, BK4300FT, BK4300FL, BK3400FLJ User Manual
Z4551-93121 (001)
BRUSHCUTTERS
Jan 2000
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.]
BK3400FL
BK3400FT
BK3400FLJ
BK4300FL
BK4300FT
APPLICABLE SERIAL NUMBERS:
000101 and up
Fig.1 DRIVE UNIT & ACCESSORIES
BK3400FL/BK4300FL
1 6129-13001 GEARCASE ASSY 1
2 6129-13110 • GEARCASE 1
3 6129-13120 • BEARING 1
4 06004-06201 • BEARING 1
5 04065-03212 • SNAPRING 1
6 6129-13211 • SHAFT, gear 1
7 6129-13220 • GEAR 1
8 6129-13310 • PINION 1
9 06000-06000 • BEARING 1
10 06001-06000 • BEARING 1
11 04065-02612 • RING 1
12 3180-13340 • RING 1
13 6129-13240 • HOLDER(A) 1
14 6129-13250 • HOLDER(B) 1
15 6129-13260 • WASHER 1
16 T3002-13260 • NUT 1 M6
17 6129-13350 • BOLT 1 M6x8
18 0224-00625 • BOLT 1
19 0260-00512 • SCREW 1
20 6129-13910 COVER 1
21 01252-30510 BOLT 3
22 3540-13283 COVER 1
23 6129-12100 PIPE COMP 1
24 3180-11321 • BUSHING 6
25 6129-12120 • BEARING COMP 1
26 06002-00607 • • BEARING 1
27 6129-12130 • • SPACER 1
28 6129-12210 SHAFT 1
29 6129-12220 SHAFT, joint 1
30 6129-12230 CLAMP 1
31 0263-10510 SCREW 1
32 01252-30520 BOLT 1
33 6129-14110 GRIP 1
34 –—–—–—– –—–—– –
35 –—–—–—– –—–—– –
36 6232-14300 HANDLE ASSY 1
37 0260-00530 • SCREW 3
38 0292-20510 • WASHER 3
39 0280-10504 • NUT 3
40 1088-82201 LEVER ASSY 1
41 –—–—–—– –—–—– –
42 6129-24110 GUARD 1
43 3541-24121 CLAMP 1
44 3540-24130 BOLT 2
45 6129-21000 SHAFT FLEX ASSY 1
46 6129-21110 • SHAFT-FLEX 1
47 6129-21120 • LINER 1
48 07000-12018 • O-RING 1
49 6129-21160 CLAMP 2
50 –—–—–—– –—–—– –
51 6189-15110 SAW 12' 1
52 6129-51110 FRAME 1
53 5940-14170 WASHER 2
54 0263-10512 SCREW 2
55 5940-14300 PAD ASSY 1
56 6129-51500 BAND ASSY 1
57 6129-51310 JOINT 3
58 5940-13170 WASHER 6 M5 PW
59 5940-13180 WASHER 6 M5 SW
60 5940-13160 NUT 6 M5
61 6129-51200 PLATE, engine COMP 1
62 4551-13310 BRACKET, engine 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
63 01641-21423 WASHER 2
64 04064-01510 SNAPRING 1
65 0224-30625 BOLT 1
66 0280-10605 NUT 1
67 6129-61100 CORD COMP 1
68 6129-61210 BAND 2
69 1600-72210 SWITCH 1
70 6129-72230 NUT 1
71 3310-31720 BOLT 4
72 4551-85000 TANK ASSY 1
73 1403-85304 • CAP ASSY 1
74 1400-85326 • • CAP, inner 1
75 1030-85140 • • ELEMENT 1
76 1600-85322 • • PACKING 1
77 4551-85100 • JOINT ASSY 1
78 1400-85141 • • GROMMET 1
79 3063-22510 • • CLIP 2
80 4551-86110 • • PIPE 1
81 3570-15311 • SPRING 1
82 1535-85520 BAND 2
83 6129-91001 TOOL SET 1
84 1030-91340 • DRIVER 1
85 3144-91160 • SOCKET 1
86 09007-00425 • WRENCH 1
87 1000-91301 TANK ASSY 1
88 6229-12401 LEVER ASSY 1 OP
89 0263-90512 SCREW 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
Fig.1 DRIVE UNIT & ACCESSORIES
BK3400FL/BK4300FL
Fig.2 DRIVE UNIT & ACCESSORIES
BK3400FLJ
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