Illustrated Parts Manual
P/N 28581
Rev 000
Model Number:
Date 7/30/99
THT-2530 / 2540
24cc, 1.3 hp Single Sided Hedge Trimmers
Note: The THT-2530 has 30 inch blades. The THT-2540 has 40 inch blades.
PARTS INFORMATION THT-2530/40
ENGINE / CYLINDER, PISTON, CRANKSHAFT • FIGURE 1
ITEM PART NUMBER
DESCRIPTION
CAP,SPARK PLUG ASS’Y
PLUG,SPARK
QTY
1
1
1
2
1
2
1
COMMENTS
1
2
3
4
7
8
9
157-06500-91
018-11660-21
001-06600-90
994-16050-201 SCREW,5X20/WS
017-06500-20 GASKET, CYLINDER
041-01601-200 RING,PISTON
030-06600-90 SET,PISTON
SET,CYLINDER
10 037-01601-200 PIN,PISTON
1
11 039-01620-200 CIRCLIP,PISTON PIN
12 046-06500-801 CRANKSHAFT
13 999-62081-225 BEARING,NEEDLE,F-810
2
1
1
27 153-21533-90
SET, COIL, IGNITION
1
28 994-16040-226 SCREW,WS,4X22
36 250-06500-200 TUBE,INSULATOR
2
1
37 178-06500-80
40 274-0700D-80
CORD,STOP COMPLETE
CORD, 130MM
1
1
Page 1
PARTS INFORMATION THT-2530/40
CRANKCASE, FLYWHEEL • FIGURE 2
P/N 046-06500-801
ITEM PART NUMBER
21 072-06500-90
DESCRIPTION
CRANKCASE ASS’Y
QTY
1
COMMENTS
Includes bearings, seals & gasket
22 090-06500-200 GASKET,CRANKCASE
23 999-66122-269 SEAL,OIL,#12227
24 999-61600-100 BEARING,BALL,#6001
25 330-00200-210 SHIM,12.2X19X.10
25 330-00200-220 SHIM,12.2X19X.15
25 330-00200-230 SHIM,12.2X19X.20
25 330-00200-240 SHIM,12.2X19X.30
26 599-00601-200 CUSHION
1
2
2
V
V
V
V
1
Shims are “as needed” to obtain
correct c/s side clearance
30 994-14050-301 SCREW,5X30/S
3
31 155-21523-80
ROTOR, MAGNETO
1
32 992-01080-011 WASHER,8
33 992-10080-012 WASHER,S,8
34 991-01080-011 NUT,8
1
1
1
35 100-02100-200 BOLT,STUD,6X22
2
Page 2
PARTS INFORMATION THT-2530/40
CARBURETOR, FUEL TANK, FUEL SYSTEM • FIGURE 3
P/N 455-06500-90
Page 3
PARTS INFORMATION
THT2530/40
CARBURETOR, FUEL TANK, FUEL SYSTEM • FIGURE 3
ITEM PART NUMBER
25 403-06500-200 GASKET,INTAKE
26 404-06500-90 MAINFOLD,INTAKE
27 994-16050-252 SCREW,5X25WS
30 402-06500-200 GASKET,CARBURETOR
33 999-67015-000 O-RING,P15
DESCRIPTION
QTY
1
1
2
1
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
COMMENTS
35 423-06500-80
BODY,CLEANER
36 470-06500-200 COLLAR
37 528-0650T-20
LEVER,CHOKE
38 992-04080-030 WASHER,8
39 476-01700-200 BOARD,BLOW OVER CHECK
40 992-10050-012 WASHER,S,5
41 990-11050-602 SCREW,5X60
43 446-06500-20
44 452-06600-90
ELEMENT,CLEANER
COVER,CLEANER
45 380-0637C-200 BOLT,CLEANER COVER
46 455-06500-90
50 223-06500-90
CARBURETOR,SET
PIPE,FUEL,ASS'Y
51 680-00731-201 CLIP 6.3
52 675-04042-80
53 591-06601-21
54 595-0656B-90
FILTER,FUEL
TANK,FUEL
CAP,GAS BLACK,NON VENT
55 659-00801-200 COLLAR
58 994-63050-185 BOLT,HEX 5X18PS
121 564-06601-90
122 565-06601-20
123 646-3252L-90
VENT,AIR ASSY
PIPE,AIR VENT
AIR VENT VALVE ASSY
124 680-00206-200 CLIP,5.5
125 561-00070-20
COVER,AIR VENT
Page 4
PARTS INFORMATION THT-2530/40
CLUTCH, STARTER, MUFFLER COMPONENTS • FIGURE 4
ITEM PART NUMBER
03 738-06600-20
DESCRIPTION
PROTECTOR,MUFFLER
QTY
1
COMMENTS
04 737-06500-200 GASKET,MUFFLER
05 133-06500-200 SHIELD,HEAT
1
1
06 704-06500-90
SET,MUFFLER
1
07 992-01050-011 WASHER,5
2
08 990-51050-503 BOLT,HEX,5X50
2
11 112-06500-80
CASE,FAN
1
12 780-06097-200 SPRING,RECOIL
13 774-06097-200 PULLEY,STARTER
1
1
15 839-02010-20
SCREW,SET
1
16 798-06500-900 PULLEY,STARTER,ASS’Y
17 203-0604A-202 GROMMET
1
1
18 783-06097-200 ROPE,STARTER
19 785-06410-200 HANDLE,STARTER
20 994-15040-162 SCREW,PS,4X16
21 751-06500-200 GASKET, TAIL PIPE
1
1
3
1
22 721-06611-90
SET,TAIL PIPE
1
23 994-34040-081 SCREW,4X8/S
2
47 277-0634F-900 CLUTCH,ASS’Y
61 990-72045-164 SCREW,TAPPING,4.5X16
62 994-25040-128 BOLT,PS,4X12
1
1
2
65 790-06097-200 SPRING,STARTER PAWL
1
66 788-06500-20
PAWL,STARTER
1
Page 5
PARTS INFORMATION THT-2530/40
CARBURETOR ASSY • FIGURE 5
0
ITEM PART NUMBER
DESCRIPTION
QTY
1
2
COMMENTS
*Contained in Carb Repair Kit
P/N 650-25140-900
0
455-06500-90
CARBURETOR
01 548-25140-200 SCREW,THROTTLE SET
05 539-25120-200 SWIVEL
1
(not available individually)
07 489-25100-200 RING,STOP
10 550-25100-200 O-RING
1
1
11 599-2000W-35 JET,MAIN,#35
1
13
14
17
~
~
~
*GASKET, PUMP
*DIAPHRAGM, PUMP
*SCREEN, INLET
1
1
1
18 575-25182-80
BODY,PUMP
1
19
20
~
~
*GASKET, DIAPHRAGM
*DIAPHRAGM, METERING
1
1
21 476-25004-200 COVER,DIAPHRAGM
22 548-25101-200 SCREW,SET
1
4
Page 6
PARTS INFORMATION THT-2530/40
CLUTCH, GEAR CASE • FIGURE 6
Page 7
PARTS INFORMATION
THT2530/40
GEAR CASE • FIGURE 6
ITEM PART NUMBER
01 300-33185-20
DESCRIPTION
CASE, GEAR"A"
QTY
1
COMMENTS
02 993-51026-002 RING,STOP,IN,C-26
03 999-61600-000 BEARING,BALL,#6000
04 999-61600-002 BEARING,BALL,#6000Z
1
1
1
05 288-33185-80
06 306-33185-20
07 307-33185-20
08 101-33185-80
09 100-33185-20
10 303-33185-20
HOUSING,CLUTCH
GEAR 1
GEAR 2
ROD,CAM
SHAFT,CAM
GASKET,GEAR CASE
1
1
1
2
1
1
11 999-61608-000 BEARING,BALL,#608
2
16 085-33185-20
19 247-33185-20
SEAL,GREASE A
COLLAR
2
2
21 994-61050-254 BOLT,HEX HOLE,5X25S
22 300-32250-801 NIPPLE,GREASE
23 990-51060-183 BOLT,HEX.HOLE,6X18
26 990-53060-153 BOLT,HEX,6X15
6
1
2
1
27 992-00060-011 WASHER,SMALL,6
1
29 070-33185-20
30 462-33185-20
PLATE,FIXING
PLATE,SUPPORT
2
1
31 990-51040-083 BOLT,HEX.HOLE 4X8
43 994-40060-011 NUT,SPRING 6
4
2
60 301-33185-20
CASE,GEAR B
1
71 992-10060-012 WASHER,S,6
72 994-40060-011 NUT,SPRING 6
2
2
Page 8
PARTS INFORMATION THT-2530/40
HANDLE, CUTTER BLADES • FIGURE 7
Page 9
PARTS INFORMATION
THT2530/40
HANDLE, CUTTER BLADES • FIGURE 7
REF PART NUMBER
12 122-33185-20
13 136-33185-20
DESCRIPTION
GUIDE,CUTTER 40"
PLATE,PROTECTION
QTY
1
1
COMMENTS
14 990-52060-253 SCREW,HEX HOLE 6X25
2
17 121-33185-20
18 120-33185-20
CUTTER B 40"
CUTTER, A 40"
1
1
24 129-33202-201 WASHER,7
6
25 124-33202-21
BOLT, CUTTER FIXING, A
6
28 128-33202-200 HOLDER,BLADE
39 125-33202-205 BOLT,CUTTER FIXING B
1
1
40 051-33185-80
41 515-37224-20
HANDLE B
GRIP,HANDLE L
1
1
42 123-33202-200 NUT,CUTTER FIXING
44 992-01060-011 WASHER,6
45 992-10060-012 WASHER,S,6
46 992-01060-011 WASHER,6
7
1
1
3
49 138-33185-21
50 122-33187-20
51 121-33187-20
52 120-33187-20
COVER,CUTTER 40"
GUIDE,CUTTER 30"
CUTTER B 30"
1
1
1
1
CUTTER A 30"
53 129-33202-201 WASHER,7
4
54 124-33202-21
55 128-37904-20
56 123-3317A-20
57 138-3318B-21
BOLT, CUTTER FIXING, A
HOLDER,BLADE
NUT,CUTTER FIXING
COVER, CUTTER 30"
4
1
5
1
Page 10
PARTS INFORMATION THT-2530/40
HANDLE, THROTTLE COMPONENTS • FIGURE 8
Page 11
PARTS INFORMATION
THT2530/40
HANDLE, THROTTLE COMPONENTS • FIGURE 8
ITEM PART NUMBER
01 053-33231-22
02 054-33231-23
DESCRIPTION
GRIP,HANDLE"A"
GRIP,HANDLE"B"
QTY
1
1
COMMENTS
03 230-33210-201 LEVER,THROTTLE
04 231-33210-200 LEVER,SAFETY
1
1
05 061-32600-201 SPRING,THROTTLE LEVER
1
06 170-32465-80
07 925-32530-20
10 765-32120-20
BUTTON, STOP SWITCH
DECAL,STOP BUTTON
CAP
1
1
1
13 994-16040-301 SCREW 4 X 30 / WS
14 994-16040-251 SCREW,4X25/WS
2
1
15 055-33185-90
16 050-33185-80
17 885-0650J-80
18 164-10015-00
ASSY,HANDLE GRIP
HANDLE A
WIRE,THROTTLE
TUBE,PROTECTION
1
1
1
1
19 994-16040-161 SCREW 4 X 16 /WS
22 991-78040-010 NUT,LOCK 4
23 990-11030-101 SCREW,3X10
3
6
1
24 258-11650-20
BUTTON,STOP
1
25 198-33130-200 CLAMP,CORD
33 994-61050-124 BOLT,HEX,5X12S
1
4
35 058-33185-20
36 060-33185-20
BRACKET,HANDLE
RUBBER,HANDLE DAMPER
1
2
75 813-20000-200 WRENCH,HEX,4
76 036-29331-501 SPANNER,COMBI
1
1
Page 12
PARTS INFORMATION THT-2530/40
DECALS • FIGURE 9
ITEM PART NUMBER
01 906-06612-20
02 906-06613-20
03 911-06500-200 DECAL,SRS
04 950-37900-200 DECAL,PRO-FORCE A
05 951-37900-200 DECAL,PRO-FORCE
DESCRIPTION
PLATE,NAME THT-2540
PLATE,NAME THT-2530
QTY
COMMENTS
1
1
1
1
1
1
06 920-32466-20
DECAL,CAUTION
Page 13
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
Remarks
Washer
is marketed exclusively by:
ISM, Inc. • 1028 – 4th Street, Suite B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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
is marketed exclusively by:
ISM, Inc. • 1028 – 4th Street, Suite B • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212
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