Tanaka TBC-4001 Setup guide

Illustrated Parts ManualIllustrated Parts Manual
Model Number:
TBC-4001
20cc Curved Shaft Grass Trimmer
P/N 27731
Rev 000
Date 8/2/99

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Page 1
TBC-4001
CYLINDER, PISTON, CRANKSHAFT • FIGURE 1

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Page 2
TBC-4001
CYLINDER, PISTON, CRANKSHAFT • FIGURE 1
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
1157-01570-900 CAP,SPARK PLUG,ASS'Y 1
2018-11660-21 PLUG,SPARK 1
3001-00045-90 SET,CYLINDER 1Includes cylinder gasket
4994-16050-221 SCREW,5X22/WS 2
6017-00025-200 GASKET,CYLINDER 1
7041-00000-21 RING,PISTON 1
8030-00045-90 SET,PISTON 1Includes ring and circlips
9039-06100-200 CIRCLIP,PISTON PIN 2
10 037-06097-20 PIN,PISTON 1
12 046-00025-80 CRANKSHAFT 1
13 061-00025-800 ROD,CONNECTING 1
21 077-00025-21 CRANKCASE 1
23 999-66152-511 SEAL,OIL,#VE15X25X7 1
24 999-61600-200 BEARING,BALL,#6002 1
30 994-16040-201 SCREW,4x20 WS 2
31 155-21522-91 ROTOR,MAGNETO 1Includes pawl and pawl spring
32 790-00025-200 SPRING,PAWL 1
33 788-00025-200 PAWL,STARTER 1
37 992-01120-011 WASHER,12 1
38 991-11120-011 NUT,12 1
50 178-00024-80 CORD 1
52 167-21533-80 COIL,IGNITION ASSY 1

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Page 3
TBC-4001
STARTER, FUEL SYSTEM, MUFFLER • FIGURE 2

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Page 4
TBC-4001
STARTER, FUEL SYSTEM, MUFFLER • FIGURE 2
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
3752-00025-22 MUFFLER PROTECTOR 1
7994-15050-161 SCREW,5X16/PS 3
11 112-00025-80 CASE,FAN 1
12 999-61600-001 BEARING,BALL,#6000ZZ 1
14 277-0635M-800 CLUTCH,ASS'Y 1
15 779-0136U-200 SPRING,RECOIL 1
16 774-00025-200 PULLEY,STARTER 1
17 771-00025-200 STAY,PULLEY 2
18 839-00025-200 SCREW,SET 2
21 783-06097-200 ROPE,STARTER 1
22 785-06410-200 HANDLE,STARTER 1
24 179-00025-800 CORD,STOP 1
25 994-16050-202 SCREW,5X20/WS 3
28 999-67048-012 O-RING,S-48 1
30 732-00025-200 SPARK ARRESTER SCREEN 1
31 739-00025-20 GASKET,MUFFLER 1
32 717-00025-801 MUFFLER COVER 1
36 994-60050-104 BOLT,HEX 5x10W 2
37 990-51040-083 BOLT,HEX.HOLE 4X8 2
40 403-0631A20 GASKET, INLET MANIFOLD 1
41 404-0099F-90 INSULATOR,CARBURETOR 1
42 402-0602K-21 GASKET,CARBURETOR 1
43 455-0003T-90 CARBURETOR 1
47 994-16050-221 SCREW,5X22/WS 2
49 999-67015-000 O-RING,P15 1
55 994-16050-601 SCREW,5x60WS 2
59 223-06500-90 PIPE,FUEL,ASS'Y 1
60 680-00731-201 CLIP 6.3 1
61 675-04042-80 FILTER,FUEL 1
62 591-00025-22 TANK 1
63 595-0650A-90 TANK CAP 1
64 659-00801-200 COLLAR 2
67 994-63050-185 BOLT,HEX 5X18PS 2
73 700-15007-01 PIPE,RUBBER 1
75 655-06400-200 CUSHION,TANK 2

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Page 5
TBC-4001
AIR CLEANER • FIGURE 3
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
0 410-00025-900 CLEANER,AIR ASS’Y 1
1 424-00025-200 CAP,AIR CLEANER 1
2 446-00025-200 ELEMENT,CLEANER 1
3 470-00025-200 COLLAR 2
4 423-00025-800 BODY,CLEANER,AIR 1

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Page 6
TBC-4001
CARBURETOR • FIGURE 4
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
0 455-0003T-90 CARBURETOR 1 *Contained in Carb Repair Kit
1 548-25140-200 SCREW,THROTTLE SET 2 P/N 650-25140-900
5 539-25120-200 SWIVEL 1 (Not available individually)
7 489-25100-200 RING,STOP 1
10 550-25100-200 O-RING 1
11 599-2000W-38 JET,MAIN # 38 1
13 ~ *GASKET, PUMP 1
14 ~ *DIAPHRAGM, PUMP 1
17 ~ *SCREEN, INLET 1
18 575-25152-80 BODY,PUMP 1
19 ~ *GASKET, DIAPHRAGM .78mm 1
20 ~ *DIAPHRAGM, METERING 1
21 476-25004-200 COVER,DIAPHRAGM 1
22 548-25101-200 SCREW,SET 4

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Page 7
TBC-4001
FAN CASE, CLUTCH DRUM • FIGURE 5
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
1 289-00025-80 DRUM,CLUTCH 1
2 999-61620-101 BEARING,BALL #6201ZZ 1
4 331-00025-21 CASE,CLUTCH 1
5 990-73050-184 SCREW,TAPPING,5X18 4
6 599-0635A-200 CUSHION 1
8 994-61050-254 BOLT,HEX HOLE,5X25S 1
10 249-0630G-201 SPACER 1
11 380-0635D-200 BOLT,SPECIAL 1

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Page 8
TBC-4001
THROTTLE LEVER, HANDLE, DRIVE SHAFT, SAFETY GUARD • FIGURE 6

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Page 9
TBC-4001
THROTTLE LEVER, HANDLE, DRIVE SHAFT, SAFETY GUARD • FIGURE 6
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
1343-37718-00 PIPE,DRIVE SHAFT SET 1
2300-37710-90 CASE,GEAR,ASS'Y 1
3341-37715-20 PIPE,DRIVE SHAFT 1
4350-37651-210 LINER,FLEXIBLE 1
5344-37651-21 SHAFT,FLEXIBLE 1
6304-37651-21 SHAFT,CUTTER 1
7999-61608-004 BEARING,BALL,608DD 2
8348-37651-20 COLLAR 1
9990-11050-081 SCREW,5X8 1
10 300-37710-20 CASE,GEAR 1
11 994-25050-301 BOLT,PS,5X30 1
12 315-37710-200 NUT,SPECIAL 1
14 310-37710-20 HOLDER,CUTTER 1
16 885-00025-800 WIRE,THROTTLE 1
18 992-01080-011 WASHER,8 1
19 991-01080-011 NUT,8 1
20 441-37701-810 COVER,SAFETY 1
21 442-37710-200 BRACKET,SAFETY GUARD 2
22 992-10060-012 WASHER,S,6 2
23 990-23060-161 BOLT,6X16 PLUS 2
26 500-37704-20 HANDLE 1
27 991-01060-011 NUT,6 2
28 506-37704-200 BRACKET,HANDLE A 1
29 992-01060-011 WASHER,6 2
31 990-23060-401 BOLT,P,6X40 2
50 504-37400-200 GRIP,SHAFT 1
51 178-37300-801 CORD,STOP 230mm 2
52 164-10014-010 TUBE,PROTECTION 1
55 870-37400-900 LEVER,THROTTLE ASS'Y 1
56 162-37101-200 SWITCH,STOP 1
57 993-42030-081 SCREW, TAPPING, 3X8 3
58 259-37101-200 BASE,STOP SWITCH 1
59 262-37101-200 SPRING,STOP SWITCH 1
60 177-37101-200 TERMINAL,EARTH B 1
61 176-37101-200 TERMINAL,EARTH A 1
62 991-86050-000 NUT,LOCK,5 1
63 993-55060-001 RING,STOP,6 1
64 832-37101-200 SPRING,RETURN 1
65 880-37101-200 LEVER,THROTTLE 1
66 994-31050-251 SCREW,S.,5X25 1
67 853-37101-200 SHAFT,LOCK BUTTON 1
68 958-37101-200 SPRING,LOCK,BUTTON 1
69 956-37101-200 BUTTON,LOCK 1
73 320-37651-200 SPACER 1

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Page 10
TBC-4001
TOOLS, NYLON HEAD • FIGURE 7
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
0 783-33822-90 BRAIN TH-97RB CUR SHT 1
1 786-33810-91 CUTTING BODY ASSY 1
2 788-33071-20 EYELET 1
4 785-33810-20 BASE,ADJUSTMENT 1
5 793-33820-20 SPRING,REEL,BLUE 1
6 792-33810-20 WASHER,ADJUSTMENT 1
7 787-33810-20 REEL 1
7 787-33821-20 REEL,TH-97B/RB 1
8 673-35600-20 BALL,STEEL 3
9 790-33810-20 SLIDER,REEL 1
10 789-33810-20 CAP,BODY 1
12 315-33822-80 NUT, MOUNTING 1
30 813-20000-200 WRENCH,HEX,4 1
31 829-20000-80 SPANNER,COMBI,13X19 1
35 948-39907-200 BAG,TOOL 1

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Page 11
TBC-4001
DECALS • FIGURE 8
ITEM PART NUMBER DESCRIPTION QTY COMMENTS
1 906-0004C-20 DECAL,TBC-4001 1
2 919-37286-20 DECAL,CAUTION 1
3 915-05015-200 DECAL,SYMBOL 1
4 923-37400-200 DECAL,LEVEL 1
10 920-32466-20 DECAL,CAUTION 1

is marketed exclusively by:
ISM, Inc. • 1028 –4th Street, Suite B • Auburn, WA 98001 • Phone: [phone] • Fax: [phone]
www.tanaka-usa.com * [e-mail]
Model & Serial: AST-210, TBC-2211 (1)
TBC-4001, TBC-2251 (2)
Reason: Some units experienced difficulty in properly feeding line. The spring within the
head has been changed to ensure proper feeding.
Part Number Changes:
Old Part # New Part # Description Remarks
783-33815-90 783-33817-90 Brain Head (1) Marking on body changed from NB to NBY
793-33810-21 793-33810-22 Spring (1) Color has been changed from black to black & yellow
783-33822-90 783-33823-90 Brain Head (2) Marking on body changed from RB to RYB
793-33820-20 793-33820-21 Spring (2) Color has been changed from silver to silver & yellow
TECHNICAL SERVICETECHNICAL SERVICE
BULLETIN NUMBER PI 3109
Date: September 2000