Illustrated Parts Manual
Model Number:
P/N 28579
Rev 001
TBC-300SDH
Date 08-01-00
GRASS TRIMMER/BRUSHCUTTER
Supplier T o The Outdoor Power Equipment Industry
ISM, Inc. • 1028 4th Street SW, Ste “B” • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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PARTS INFORMATION TBC-300SDH
ENGINE / CYLINDER, PISTON, CRANKSHAFT • FIGURE 1
17
Page 1
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PARTS INFORMATION TBC-300SDH
ENGINE / CYLINDER, PISTON, CRANKSHAFT • FIGURE 1
ITEM PART NUMBER
1-1
DESCRIPTION
CAP,SPARK PLUG,ASS'Y
PLUG,SPARK
SET,CYLINDER
SCREW,5X16/S
GASKET,CYLINDER
RING,PISTON
SET,PISTON
CIRCLIP,PISTON PIN
PIN,PISTON
CRANKSHAFT
BEARING,NEEDLE,F-910
KEY,WOODRUFF,3X13X4.5
SHIM,12.2X19X.10
SHIM,12.2X19X.15
SHIM,12.2X19X.20
SHIM,12.2X19X.30
NUT,8
PULLEY,STARTER
WASHER,CLUTCH B
CRANKCASE ASSY
SEAL,OIL,#12227
BEARING,BALL,#6001
GASKET,CRANKCASE
SCREW,5X25
ASSY,LEAD WIRE
COIL,IGNITION
SCREW,5X20/WS
CAP,RUBBER
LEAD,HIGH TENSION
ROTOR,MAGNETO
WASHER,8
QTY
1
COMMENTS
1570097A900
01802233200
0010128090
99414050161
0170128020
0410170020
0300128090
03900000201
03701700200
0460165A81
99962091325
06810100200
33000200210
33000200220
33000200230
33000200240
99101080011
79801630200
35910112203
0720128091
99966122240
99961600100
0900060120
99414050251
1910129G90
1672052190
99416050201
56020517200
26420516200
1552050980
99200080011
99101080011
1-2
1-6
1-7
1-9
1
1
4
1
2
1
2
1
1
1
1
V
V
V
V
1
1
1
1
2
2
1
4
1
1
2
1
1
1
1
1
Includes cylinder gasket
1-11
1-12
1-13
1-14
1-16
1-17
1-18
1-19
1-19
1-19
1-19
1-21
1-22
1-26
1-31
1-32
1-33
1-34
1-36
1-40
1-42
1-46
1-47
1-48
1-51
1-52
1-54
Includes rings, and circlips
*Shims are "as needed" to obtain
correct side clearance
*Crankcase assy includes bearings, seals
and gaskets.
NUT,8
Page 2
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PARTS INFORMATION TBC-300SDH
CLUTCH, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
RECOIL STARTER SEE FIG 3
CARBURETOR SEE FIG 4
Page 3
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PARTS INFORMATION TBC-300SDH
CLUTCH, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
ITEM PART NUMBER
2-1
DESCRIPTION
GROMMET,SECONDARY CORD 1
QTY
COMMENTS
20201003201
7380097A21
99415040222
99072045164
99053060503
99201060011
7040097A91
75104200201
7320631A200
7340099K90
99434040081
1330097A21
7370165A201
35902103200
29001620800
3420630B200
3480602R200
3570075T200
99416050162
99205080030
4030097A21
4040097A90
99416050241
4020602K21
4550129A90
4360162V20
5280097A21
99967008012
4700602N200
4230637C800
4460637C200
99210050012
99011050602
4520165V90
3800637C200
99200050011
2-6
2-7
2-8
PROTECTOR,MUFFLER
SCREW,PS,4X22
SCREW,TAPPING,4.5X16
SCREW,HEX,6X50
WASHER,6
1
2
2
2
2
1
1
1
1
2
1
1
2
2
1
2
2
3
2
1
1
2
1
1
1
1
1
1
1
1
2
2
1
1
2
2-16
2-18
2-19
2-20
2-21
2-22
2-24
2-26
2-27
2-31
2-32
2-33
2-34
2-35
2-36
2-38
2-41
2-42
2-45
2-46
2-47
2-51
2-53
2-54
2-55
2-56
2-57
2-60
2-61
2-62
2-63
2-64
SET,MUFFLER
GASKET,MUFFLER
ARRESTER,SPARK
PIPE,EXHAUST
SCREW,4X8/S
SHIELD,HEAT
GASKET,MUFFLER
WASHER,CLUTCH,B
SHOE,CLUTCH
SPRING,CLUTCH
WASHER,CLUTCH A
BOLT,STEP
SCREW,5X16/WS
WASHER,8
GASKET,INLET MANIFOLD
SET,CARB INSULATOR
SCREW 5x24WS
GASKET,CARBURETOR
SET,CARBURETOR
BASE,CLEANER
LEVER,CHOKE
O-RING,S-8
COLLAR,CLEANER
BODY,CLEANER
ELEMENT,CLEANER
WASHER,S,5
SCREW,5X60
COVER,CLEANER ASS'Y
BOLT,CLEANER COVER
WASHER,SMALL,5
Page 4
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PARTS INFORMATION TBC-300SDH
CLUTCH, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
ITEM PART NUMBER
DESCRIPTION
PUMP,PRIMING ASS'Y
PIPE,FUEL,2.5X4X80
GROMMET,FUEL PIPE
PIPE,FUEL,ASS'Y
CLIP 6.3
FILTER,FUEL
TANK,FUEL
CAP,FUEL BLACK,NON VENT
CUSHION,FUEL TANK
TANK BRACKET
QTY
1
2
1
1
1
1
1
1
COMMENTS
2-76
2-78
2-79
2-86
2-87
2-89
2-91
2-92
2-96
2-97
2-98
44225143800
70002504080
53432710200
2230162V900
68000731201
6750404280
5910129420
5950656B90
65500940201
6530097A20
99415040222
4
1
4
SCREW,PS,4X22
2-121 5640660191
2-122 5650660121
2-123 6463252L90
2-124 68000206200
2-125 5610007020
AIR VENT VALVE PIPE
AIR VENT PIPE
AIR VENT VALVE ASS'Y
CLIP 5.5
1
1
1
1
AIR VENT RUBBER CAP
1
Page 5
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PARTS INFORMATION TBC-300SDH
RECOIL STARTER • FIGURE 3
ITEM PART NUMBER
DESCRIPTION
STARTER,RECOIL ASS’Y
HANDLE,STARTER
BODY,STARTER
SPRING,RECOIL
ROPE,STARTER
REEL,STARTER ROPE
REEL,STARTER ROPE
PAWL,STARTER
WASHER,STARTER PULLEY
PLATE,FRICTION
SHIM,STARTER PULLEY
SHIM,STARTER PULLEY
BOLT,SET
QTY
1
2
1
1
1
1
1
1
1
1
1
1
COMMENTS
3-0
7620094090
78500940200
77200940801
78000940200
78300940200
77400940200
7740163021
7880163021
80105015200
8370501521
82205015200
8220423020
8390423020
3-2
3-3
3-4
3-5
3-6
3-6
3-7
3-8
Prior to S/N V218191
S/N V218191 and after
3-10
3-11
3-11
3-12
Prior to S/N V218191
S/N V218191 and after
1
Page 6
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PARTS INFORMATION TBC-300SDH
CARBURETOR • FIGURE 4
ITEM PART NUMBER
DESCRIPTION
CARBURETOR
SCREW,THROTTLE SET
STAY,ADJUST,CABLE
SWIVEL
RING,STOP
O-RING
JET,MAIN,#42
*GASKET,PUMP
*DIAPHRAGM,PUMP
*SCREEN,INLET
BODY,PUMP ASS’Y
*GASKET,DIAPHRAGM
*DIAPHRAGM,METERING
COVER,DIAPHRAGM
SCREW,SET
ADJUSTER,CABLE
NUT,6
GASKET,CLEANER
WASHER,THRUST
QTY
1
COMMENTS
4-0
4-1
4-4
4-5
4550129A90
51425100200
54425164200
53925120200
48925100200
55025100200
599200AW42
~ ~ ~
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
* Contained in Carb Repair Kit
P/N 650-25124-900 (Not available individually)
4-7
4-10
4-11
4-12
4-13
4-16
4-17
4-18
4-19
4-20
4-21
4-22
4-23
4-24
4-41
~ ~ ~
~ ~ ~
5752514780
~ ~ ~
~ ~ ~
47625004200
54825101200
61425137200
99101060013
4310634C200
5492516520
Page 7
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PARTS INFORMATION TBC-300SDH
FAN CASE & CLUTCH DRUM • FIGURE 5
ITEM PART NUMBER
DESCRIPTION
DRUM,CLUTCH
RING,STOP,C-12 EX
CUSHION,RUBBER
BOLT,HEX,5X16
BOLT,HEX HOLE,5X25S
SET,FAN CASE
HOLDER,PIPE 26 DIA
WASHER,5
QTY
1
COMMENTS
5-1
2890098080
99350012002
5990098021
99051050163
99461050254
11201280812
3600129020
99201050061
3243735020
3610099020
5-3
5-5
1
1
1
1
1
1
1
1
1
5-6
5-8
5-11
5-15
5-26
5-27
5-28
*Includes Bearing
S/N T252658 and after
S/N T252658 and after
S/N T252658 and after
WASHER,GEAR CASE
FITTING,METAL
Page 8
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PARTS INFORMATION TBC-300SDH
THROTTLE LEVER, HANDLE • FIGURE 6
Page 9
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PARTS INFORMATION TBC-300SDH
THROTTLE LEVER, HANDLE • FIGURE 6
ITEM PART NUMBER
6-1
DESCRIPTION
SHAFT,DRIVE
QTY
1
COMMENTS
34337300200
3413737880
34737356900
33537307200
33437352210
99462050304
31537304200
1653759020
99461050254
50637304211
50637623200
50737304203
5073810020
5073785020
5103735220
50837304211
5083758720
5083758920
99481060254
3363341182
4603311120
5023367421
5023741521
746291
6-2
6-3
PIPE,DRIVE SHAFT
BUSHING,DRIVE SHAFT
METAL,LIFTING
COLLAR,LIFTING METAL
BOLT,HEX HOLE 5x30.P
NUT,SPECIAL
1
5
1
2
2
1
1
4
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
6-42
6-43
6-44
6-46
6-63
6-64
6-66
6-66
6-67
6-67
6-67
6-68
6-69
6-69
6-69
6-71
6-72
6-74
6-75
6-75
6-91
6-92
6-92
6-95
6-98
GRIP,HANDLE
BOLT,HEX HOLE,5X25S
BRACKET,HANDLE,A
BRACKET,HANDLE,A
BRACKET,HANDLE,B
BRACKET,HANDLE,B
BRACKET,HANDLE,B
RUBBER,CUSHION
BRACKET,HANDLE,C
BRACKET,HANDLE,26 DIA
BRACKET,HANDLE,C
SCREW,HEX HOLE 6X25
CUSHION
CLAMP."B"
HANDLE,LEFT
HANDLE,LEFT
SHOULDER STRAP
HANDLE,RIGHT
HANDLE,RIGHT
ASSY,THROTTLE LEVER
LEVER,SAFETY
SPRING,RETURN
LEVER,THROTTLE
GROMMET
SCREW, 4X20
SCREW 5X30 BLACK
NUT,5
Before S/N V243830
S/N V243831 and after
Before S/N V057070
From S/N V057071 to S/N V243830
S/N V243831 and after
Before S/N V057070
Before S/N V057070
From S/N V057071 to S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
5013810220
5013782220
8703840190
2533840020
Before S/N V243830
S/N V243831 and after
6-100 8323840020
6-101 8803840120
6-103 3223840020
6-106 9934604020
6-107 99431050303
6-108 99101050043
6-120 8853840180
WIRE, THROTTLE
INCLUDES STOP SWITCH ASSEMBLY
Page 10
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PARTS INFORMATION TBC-300SDH
GEAR CASE & SAFETY GUARD • FIGURE 7
Page 11
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PARTS INFORMATION TBC-300SDH
GEAR CASE & SAFETY GUARD • FIGURE 7
ITEM PART NUMBER
7-1
DESCRIPTION
ASSY,GEAR CASE,26 MM
ASSY,GEAR CASE,26MM
ASSY,GEAR CASE,26MM
BOLT,HEX HOLE,5X25S
RING,STOP,C-28,IN
RING,STOP,C-22,INNER
RING,STOP,C9
RING,STOP,C10,OUTER
BEARING,BALL,#609Z
BEARING,BALL,#6900Z
BEARING,BALL,#609
BEARING,BALL,#6900ST
CASE,GEAR
QTY
1
COMMENTS
Before S/N V057070
From S/N V057071 to S/N V243830
S/N V243831 and after
3003713490
3003758790
3003748090
99461050254
99351024002
99351022002
99350009002
99350010002
99961609002
99961690002
99961609000
99961690000
3003330B20
3003748020
99051050103
99461050124
99423080100
3163815020
99961628000
99961609000
7-1
7-1
7-2
7-4
7-4
7-5
7-5
7-6
7-6
7-7
7-7
7-9
1
1
2
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
1
1
1
1
1
1
1
1
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V057070
From S/N V057071 to S/N V243830
S/N V243831 and after
7-9
CASE,GEAR
7-11
7-11
7-12
7-12
7-13
7-13
BOLT,HEX.HOLE,5X10
BOLT,HEX.HOLE,5X12S
BOLT,8X10
BOLT,FITTING,M8
BEARING,BALL,#628
BEARING,BALL,#609
SHAFT,GEAR
SHAFT,GEAR
SHAFT,GEAR
BEARING,BALL #6201D
RING,STOP,C-32 IN
HOLDER,CUTTER
7-15-1 3043713420
7-15
7-15
7-16
7-17
7-18
7-18
7-19
7-19
7-21
7-21
7-21
3043810020
3043815020
99961620103
99351032002
3103810020
3103815020
3113810020
3113815020
30833410200
3083786120
3083815020
Before S/N V243830
S/N V243831 and after
Before S/N V243830
S/N V243831 and after
Before S/N V057070
From S/N V057071 to S/N V243830
S/N V243831 and after
Before S/N V057070
HOLDER,CUTTER
CAP,CUTTER HOLDER
CAP,CUTTER HOLDER
COVER,PROTECTION,B
COVER,PROTECTION,B
COVER,PROTECTION,B
BOLT,FIXING,L.H.,FLANGED
NUT,FIXING L.H. 10X1.25
NUT,FIXING M10X1.25
WASHER,GEAR CASE
WASHER,SPECIAL
SCREW,HEX HOLE 6X25
BRACKET,SAFETY GUARD
GUARD,SAFETY
7-22-1 3123338620
7-22
7-22
7-23
7-25
7-26
7-28
7-29
7-30
7-31
7-32
7-34
7-35
7-35
7-36
7-45
3133810020
3133815020
3243735020
0673713420
99481060254
4423369921
4413738020
4453738020
4473738020
7973738021
99414050121
3013713400
3013815000
99101050011
3273718090
From S/N V057071 to S/N V243830
S/N V243831 and after
HOLDER,GUARD
EXTENSION,GUARD
LIMITER,LINE
SCREW,S,5X12
SET,GEAR PINION
SET,GEAR PINION
NUT,5
Before S/N V243830
S/N V243831 and after
PIN,COTTER 2X20 (10 PK)
S/N V057071 and after
Page 12
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PARTS INFORMATION TBC-300SDH
TOOLS AND NYLON HEAD • FIGURE 8
ITEM PART NUMBER
DESCRIPTION
HEAD, BRAIN 2000
QTY
1
COMMENTS
Units prior to S/N V243831
8-0
746751
8-1
8-2
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-21
8-23
8-24
8-25
8-26
7863381091
7883307120
7853381020
7933381022
7923381020
7873381020
6733560020
7903381020
7893381020
3143381280
3153381080
81320000200
8262000080
746104
CUTTING BODY ASSY
EYELET
BASE,ADJUSTMENT
SPRING,REEL,YELLOW
WASHER,ADJUSTMENT
REEL
BALL,STEEL
SLIDER,REEL
CAP,BODY
BOLT,MOUNTING
NUT,10x1.25,LHF
WRENCH,HEX,4
SPANNER,COMBI,17X19
BLADE,9X80,1.6t
COVER, CUTTER
1
1
1
1
1
1
3
1
1
1
1
1
1
1
2
Before S/N V057070
S/N V057071 and after
S/N V057071 and after
6153722420
Page 13
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PARTS INFORMATION TBC-300SDH
5” SEMI-AUTO HEAD
ITEM PART NUMBER
DESCRIPTION
HEAD,SEMI-AUTO 5"
ADAPTER,10X1.25 LHF
BODY,CUTTING
NUT,SPECIAL
SPRING
REEL
CAP,BODY
EYELET
QTY
1
1
1
1
COMMENTS
After serial number V243831
0
2
3
4
5
6
7
8
746451
3563383B20
78633830200
31533830200
79333830200
78733830200
78933830200
78833830200
1
1
1
2
10 99201120011
WASHER,12
1
After serial number V243831
Page 14
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PARTS INFORMATION TBC-300SDH
DECALS • FIGURE 9
ITEM PART NUMBER
DESCRIPTION
PLATE,NAME TBC-300SDH
DECAL,PRO-FORCE A
DECAL,LEVEL
DECAL,PRO-FORCE B
DECAL,CAUTION,A
DECAL,LEVEL
QTY
1
COMMENTS
9-1
9060129420
95037900200
9233370020
95137503200
9193738F20
9233728620
9-3
9-4
1
1
1
1
1
9-5
9-10
9-18
Page 15
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