Illustrated Parts Manual
Model Number:
P/N 27123
Rev 002
Date 10-15-07
THT-2100
HEDGETRIMMER
Nikko Tanaka Engineering U.S.A.,Ltd.• 1028 4th Street SW, Bldg B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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PARTS INFORMATION
THT-2100
ENGINE / CYLINDER, PISTON, CRANKSHAFT • FIGURE 1
ITEM
1-1
1-2
1-3
1-4
1-7
1-8
1-9
PART NUMBER
1570650091
01804075200
0010650090
99416050201
0170650020
04100601210
0300650090
DESCRIPTION
CAP,SPARK PLUG ASS'Y
PLUG,SPARK
QTY
1
COMMENTS
1
1
2
1
1
1
1
2
1
1
1
1
2
2
V
V
V
V
1
1
2
3
1
1
1
1
2
1
1
SET,CYLINDER
Includes cylinder gasket
SCREW,5X20/WS
GASKET, CYLINDER
RING,PISTON
SET,PISTON
PIN,PISTON
Includes rings, and circlips
1-10 03706500200
1-11 03901620200
1-12 04606500801
1-13 99962081225
1-21 0720650090
1-22 09006500200
1-23 99966122206
1-24 99961600100
1-25 33000200210
1-25 33000200220
1-25 33000200230
1-25 33000200240
1-26 59900601200
1-27 1672153280
1-28 99416040226
1-30 99414050301
1-31 1552152380
1-32 99201080011
1-33 99210080012
1-34 99101080011
1-35 10002100200
1-36 25006500200
1-37 1780650080
CIRCLIP,PISTON PIN
CRANKSHAFT
BEARING,NEEDLE,F-810
CRANKCASE ASS'Y
GASKET,CRANKCASE
SEAL,OIL,#TC12227
BEARING,BALL,#6001
SHIM,12.2X19X.10
SHIM,12.2X19X.15
SHIM,12.2X19X.20
SHIM,12.2X19X.30
CUSHION
COIL,IGNITION
SCREW,WS,4X22
SCREW,5X30/S
ROTOR, MAGNETO
WASHER,8
WASHER,S,8
Crankcase assy includes bearings, seals
and gasket.
Shims are "as needed" to obtain
correct side clearance
NUT,8
BOLT,STUD,6X22
TUBE,INSULATOR
CORD,STOP COMPLETE
Page 2
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PARTS INFORMATION
THT-2100
ENGINE, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
Recoil Starter Assy
Use #762.06500.90
Includes items #11-#19
CARBURETOR
SEE FIG-3
Page 3
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PARTS INFORMATION
THT-2100
ENGINE, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
ITEM
2-3
2-4
2-5
2-6
PART NUMBER
7380650020
73706500200
13306500200
7040651C90
DESCRIPTION
PROTECTOR,MUFFLER
GASKET,MUFFLER
SHIELD,HEAT
MUFFLER,SET
WASHER,5
QTY
1
COMMENTS
1
1
1
2
2
1
1
1
1
1
1
1
1
3
1
1
2
1
1
2
1
1
1
2
1
1
1
2
2
1
1
1
1
2-7
2-8
99201050011
99051050503
BOLT,HEX,5X50
CASE,FAN
2-11 1120650080
2-12 78006097200
2-13 77406097200
2-15 8390201020
2-16 79806500900
2-17 2030604A202
2-18 78306097200
2-19 78506410200
2-20 99415040162
2-21 75106500200
2-22 7210650090
2-24 99434040081
2-25 40306500200
2-26 4040650090
2-27 99416050252
2-30 40206500200
2-33 99967015000
2-35 4230650081
2-36 47006500200
2-37 5280650T20
2-38 99204080030
2-39 47601700200
2-40 99210050012
2-41 99011050602
2-43 4460650020
2-44 4520650091
2-45 3800637C200
2-47 2770634F900
SPRING,RECOIL
PULLEY,STARTER
SCREW,SET
PULLEY,STARTER,ASS'Y
GROMMET
ROPE,STARTER
HANDLE,STARTER
SCREW,PS,4X16
GASKET,MUFFLER
PIPE,TAIL
SCREW,4X8/S
GASKET,INTAKE
SET,CARB INSULATOR
SCREW,5X25WS
GASKET,CARBURETOR
O-RING,P15
BODY,CLEANER
COLLAR
LEVER,CHOKE
Includes carburetor gasket
WASHER,8
BOARD,BLOW OVER CHECK
WASHER,S,5
SCREW,5X60
ELEMENT,CLEANER
COVER, CLEANER W/BOLT
BOLT,CLEANER COVER
CLUTCH,ASS'Y
Page 4
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PARTS INFORMATION
THT-2100
ENGINE, MUFFLER, AIR CLEANER, FUEL SYSTEM • FIGURE 2
ITEM
PART NUMBER
DESCRIPTION
PIPE,FUEL,ASS'Y
QTY
1
COMMENTS
2-50 2230650090
2-51 68000731201
2-52 6750404280
2-53 5910650000
2-53 5910661321
2-53 5910651A21
2-54 5950650A90
2-54 5950656B90
2-55 65900801200
2-58 99463050185
2-61 99072045164
2-62 99425040128
2-65 79006097200
2-66 7880650020
2-70 44225143800
2-77 70002504080
2-78 7000250406
2-79 53432710200
2-121 56400661190
2-122 5650441020
2-123 5640098190
CLIP 6.3
FILTER,FUEL
TANK.FUEL
TANK.FUEL
TANK,FUEL
TANK CAP
CAP,FUEL BLACK,NON VENT
COLLAR
BOLT,HEX 5X18PS
SCREW,TAPPING,4.5X16
BOLT,PS,4X12
SPRING,STARTER PAWL
PAWL,STARTER
PUMP,PRIMING ASS'Y
PIPE,FUEL,2.5X4X80
PIPE,FUEL,2.5X4X65
GROMMET,FUEL PIPE
VENT,AIR ASS'Y
PIPE,AIR VENT
1
1
1
Before S/N T245720
S/N T245721 to U244200
S/N U244201 and after
Before S/N T245720
1
1
1
2
2
1
2
1
1
1
1
1
1
1
1
1
S/N T245271 and after
S/N U244201 and after
S/N U244201 and after
S/N U244201 and after
S/N U244201 and after
AIR VENT VALVE ASSY
Page 5
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PARTS INFORMATION
THT-2100
CARBURETOR • FIGURE 3
A small retainer (560-02170-
20), has been added to this
model after serial # A099801
to prevent the barrel end of the
throttle wire from coming
detached from the carburetor.
ITEM
3-0
PART NUMBER
4550650090
DESCRIPTION
CARBURETOR,SET
QTY
1
COMMENTS
Before S/N U244200
3-0
3-1
3-5
3-7
4550651A90
CARBURETOR
SCREW,THROTTLE SET
SWIVEL
RING,STOP
O-RING
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
S/N U244201 and after
54825140200
53925120200
48925100200
* Contained in Carb Repair Kit
P/N 650-25124-900 (Not available individually)
3-10 55025100200
3-11 5992000W35
3-11 599200BW34
3-13 ~ ~ ~
3-14 ~ ~ ~
3-17 ~ ~ ~
3-18 5752518280
3-18 5752514780
3-19 ~ ~ ~
3-19 ~ ~ ~
3-20 ~ ~ ~
JET,MAIN,#35
Before S/N U244200
S/N U244201 and after
JET,MAIN,LONG,#34.5
*GASKET,PUMP
*DIAPHRAGM,PUMP
*SCREEN,INLET
BODY,PUMP
BODY,PUMP ASS'Y
*GASKET,DIAPHRAGM
*GASKET,DIAPHRAGM
*DIAPHRAGM,METERING
COVER,DIAPHRAGM
SCREW,SET
Before S/N U244200
S/N U244201 and after
Before S/N U244200
S/N U244201 and after
3-21 47625004200
3-22 54825101200
Page 6
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PARTS INFORMATION
THT-2100
GEAR CASE, CUTTER BLADES • FIGURE 4
sn A302051 and after
Page 7
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PARTS INFORMATION
THT-2100
GEAR CASE, CUTTER BLADES • FIGURE 4
ITEM PART NUMBER
DESCRIPTION
QTY
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
2
2
2
4
4
4
4
3
8
6
2
2
1
1
3
1
1
1
1
2
2
3
2
COMMENTS
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
3003317A80
99350015002
99961600200
99961600202
2883318080
30533160200
07533160200
1013316022
3073318020
CASE,GEAR
RING,STOP,C-15 EX
BEARING,BALL,#6002
BEARING,BALL,#6002Z
DRUM,CLUTCH
SHAFT,GEAR
PLATE,GUIDE
ROD,CAM
GEAR,2
4-10 30333160200
4-11 6303316020
4-12 1223316021
4-12 1223317820
4-13 1363316020
4-14 99052060165
4-14 99052060255
4-15 CB-21A
4-16 08533160200
4-17 12933202201
4-18 1243320221
4-18 1243228720
4-19 1233317A20
4-19 40927
4-21 99461040104
4-21 99461040124
4-22 30032250801
4-23 99051060143
4-30 4623329520
4-31 8713260020
4-32 99187060001
4-60 3013316021
4-67 19805015800
4-69 13833160200
4-69 1383316820
4-71 99210060012
4-72 99440060011
4-81 99201060011
4-82 99461040104
GASKET,GEARCASE
COVER,GEAR CASE
GUIDE,CUTTER 625MM
GUIDE,CUTTER
PLATE,PROTECTION
BOLT,HEX,6X16
BOLT,HEX FLUSH,6X25
BLADE,CUTTER,THT-210/2100
SEAL,GREASE A
WASHER,7
BOLT,CUTTER FIXING,A
BOLT,FIXING,A,M6
NUT,CUTTER FIXING
NUT,FLANGE,6
BOLT,HEX,4X10,S
BOLT,HEX,4X12,S
FITTING,GREASE
BOLT,HEX,6X14
PLATE,SUPPORT
WASHER SPECIAL A
NUT
~A302050
A302051~
S278771~
~A302050
A302051~
~A302050
A302051~
Y004401 thru A302050
A302051~
~A302050
A302051~
A302051~
A302051~
A302051~
A302051~
GEAR CASE B
CLAMP,CORD
COVER,CUTTER,22"
COVER,CUTTER,22"
WASHER,S,6
~S278770
S278771~
NUT,SPRING 6
WASHER,6
S278771~
A302051~
BOLT,HEX,4X10,S
Page 8
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PARTS INFORMATION
THT-2100
HANDLE, THROTTLE LEVER • FIGURE 5
ITEM
PART NUMBER
DESCRIPTION
SWITCH,STOP
QTY
1
COMMENTS
5-26 1703317A80
5-27 2581165020
5-28 99011030101
5-29 2303315020
5-30 23133150200
5-31 23233150200
5-35 7653212020
5-36 99311040182
5-47 8850651C80
5-48 9253253020
5-50 99414050451
5-51 99178050010
5-53 99414060181
5-55 99200050011
5-61 2103316021
5-64 99210050062
5-63 99201050061
5-65 99051050403
5-73 1640701400
5-82 65900801200
5-83 05033150010
BUTTON,STOP
SCREW,3X10
LEVER,THROTTLE
LEVER,SAFETY
SPRING,THROTTLE LEVER
CAP
SCREW,TAPPING 4x18
WIRE,THROTTLE
DECAL,STOP BUTTON
SCREW,5X45/S
NUT,LOCK 5
SCREW,6X18/S
WASHER,SMALL,5
HANDLE
1
1
1
1
1
1
7
1
1
1
1
1
1
1
2
2
WASHER,S,5
WASHER,5
BOLT,HEX,5X40
TUBE, PROTECTION 140L
COLLAR
2
1
2
1
HANDLE ASS'Y
Includes both left and right handles
Page 9
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PARTS INFORMATION
THT-2100
DECALS • FIGURE 6
ITEM
6-1
6-2
6-5
6-8
PART NUMBER
95037900200
9060651C20
95137900200
91106500200
DESCRIPTION
DECAL,PRO-FORCE A
DECAL,THT-2100
DECAL,PRO-FORCE
DECAL,SRS
QTY
1
COMMENTS
1
1
1
1
1
6-17 9203246620
6-27 9083316021
DECAL,CAUTION
DECAL,CAUTION
Page 10
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TECHNICAL SERVICE
BULLETIN NUMBER PI 3118
Date:
June 2001
Model & Serial:
THT-2100/THT-2120/THT-2510/THT-2520/THT-2540/HTD-2522PF/HTD-2526PF/HTD-
2530PF/HTS-2530PF.
All units produced after serial number W100101.
Reason:
When these units are fitted with the aluminum safety shield, some experience
loosening of the blade jam nuts. A flat washer has been added between the nut
and the aluminum shield to help prevent the nut from becoming loose.
Models THT-2100, 2120, 2510 and HTD-2526PF, 2522PF require 3 washers.
Models THT-2520, 2540 and HTS-2530PF and HTD-2530PF require 2 washers
Part Number Changes:
Old Part #
992-01060-011
New Part #
Description
Washer
Remarks
th
Nikko Tanaka Engineering U.S.A. ,Ltd.• 1028 4 Street SW, Bldg B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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TECHNICAL SERVICE
BULLETIN NUMBER PI 3119
Date:
January, 2002
Model & Serial:
All THT, HTD, HTS, TPH hedgetrimmer models.
All units after serial number Y004401
Reason:
All future production of hedgetrimmer models will utilize a blade-retaining nut
that is of the locking variety. These nuts are oblong on one side to prevent
loosening during use, but can be removed and re-installed without losing their
locking ability.
When adjusting blade-fastening hardware, thread the bolt (18) through the
blades and guide bar from the bottom, to a point where the flat washer (17), is
still able to rotate, (usually to seat, and then backed off between ¼ and ½
revolution). Then install the lock nuts on the topside, tightening them while
holding the bolt in place. Tighten all nuts, and then re-check for adjustment prior
to operation. A lubricating agent, such as WD-40 should also be used to prevent
sap build-up and premature wear.
Part Number Changes:
Old Part #
123-33202-200
New Part #
Description
Remarks
Reference #19
123-3317A-20 Lock Nut
th
Nikko Tanaka Engineering U.S.A. ,Ltd.• 1028 4 Street SW, Bldg B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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TECHNICAL SERVICE
BULLETIN NUMBER PI 3129
Date:
December 2004
Model & Serial:
THT-2100
A302051 and later
Reason:
Configuration standardization of hardware, converting blade hardware from US
Standard thread to Metric thread. An additional support plate is also being added
to this product to strengthen the cutter guide.
Comments:
Please verify serial number on unit prior to ordering replacement blade hardware
and add the support plate on older serial numbers. The support plate qualifies
for warranty reimbursement at .25 hours and normal parts rate.
Part Number Changes:
Description
Old parts #
New parts #
122-33178-20
124-32287-20
991-82060-001
990-52060-255
Cutter guide 625.5L M6 (#12)
Cutter fixing bolt A
Flange nut M6 (#19)
Hex hole flush bolt 6x255 (#14)
Protection plate 390L (#13)
122-33160-21
124-33202-21
123-3317A-20
990-52060-165
136-33160-20
Keep same pcs & reuse some
for protection plate
Washer 6
(#33)
992-01060-011
994-61040-104
Hex hole bolt 4x10S (#82)
Hex hole bolt 4x12S (#21)
Special washer B 2.0 (#31)
994-61040-104
994-61040-124
871-32600-200
301-33160-21
462-33295-20
991-87060-001
210-33160-22
Gear case B
(#60)
Support plate (#30)
Nut 6 UPS-P (#32)
Front handle
210-33160-21
th
Nikko Tanaka Engineering U.S.A. ,Ltd.• 1028 4 Street SW, Bldg B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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