Parts Manual
Rev. 10/2001
TP 400-2561-00-IW-S
INTERMEDIATE
SNOWTHROWERS
555 SNOWTHROWERS
Mfg. No. Description
1693980 555M, 5 HP Manual Start
1693981 555M, 5 HP Manual Start (Export)
755 S
NOWTHROWERS
Mfg. No. Description
1693983 755E, 7 HP Electric Start
1693982 755M, 7 HP Manual Start (Export)
© Copyright 2001 Simplicity Manufacturing, Inc.
All Rights Reserved. Printed In USA.
MANUFACTURING, INC.
500 N Spring Street / PO Box 997
Port Washington, WI 53074-0997 USA
www.simplicitymfg.com
1
TP-400-2561-00-IW-S
Table of Contents
SNOWTHOWER COMPONENTS PAGES
Handles and Controls Group.....................................2
Frame and Engine Group...........................................6
Auger Drive and Impeller Group..............................10
Auger Housing and Chute Group ............................12
Traction Drive Group...............................................14
Decals Group ..........................................................16
Wheels and Tires Group..........................................18
REFERENCE INFORMATION
Torque Specification Chart..............Inside Back Cover
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
2
TP-400-2561-00-IW-S
Handles and Controls Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985917
Apply adhesive to
secure grips.
Ref. 29 required on
slotted holes only.
Shift rod assembly
(Ref. 20) must pivot
freely on pivot blocks
(Ref. 14).
Slot in support (Ref. 56)
towards rear of unit.
Mount bushings
with flange on
inside of brackets.
Insert shift rod (Ref. 13)
into inner hole of Ref. 15.
Use washers to shim
gear (Ref. 54) as required
to insure proper adjustment.
Position in slots of frame to be sure hub of gear
(Ref. 56) is tight against the inside surface of the
gear support (Ref. 51).
Locate under rear hole of
gear support (Ref. 51) only.
Must pivot freely
on capscrew (Ref 34).
Apply lubricant as required.
Must slide freely in
dash assembly (Ref 24).
Apply lubricant as required.
1
2
3
4
3
1
2
3
3
49
5
38
6
35
7
37
36
23
24
26
27
28
29
39
40
41
46
47
48
50
17
51
22
52
53
25
54
55
57
47
58
60
61
62
22
42
45
47
56
25
59
59
54
25
8
9
10
11
13
12
11
10
12
28
24
21
14
8
16
14
17
19
10
11
22
18
7
14 15
20
25
30
31
32
34
33
36
44
1622
43
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
3
TP-400-2561-00-IW-S
Handles and Controls Group
1 1668525 2 ROD, Control, Lower
2 1669323 2 SPRING, Extension
3 1916621 4 NUT, Hex, #10-24 R.H.
4 1715132 1 CLUTCH ROD, Auger Drive
5 1722636 1 HANDLE, R.H. (Auger Control side)
6 1722638 1 LEVER, Auger Clutch, R.H.
7 1676954 2 GRIP, Black Vinyl, for 1Ó Tube
8 1918447 3 PIN, Cotter
9 1666255 1 ROD, Shift, Lower
10 1916622 3 NUT, Hex Hd., 1/4-20
11 1916964 3 LOCKWASHER, Spring
12 1960252 2 CARRIAGE BOLT, 1/4-20 x 5/8 G5
13 1720238 1 ROD, Shift, Upper
14 1668524 2 BLOCK, Pivot
15 1720240 1 ROD & ARM ASMY, Pivot
16 1715123 1 SPRING, Torsion
17 1918452 2 PIN, Cotter
18 1668185 2 BUSHING
19 1924361 1 WASHER
20 1668523 1 ROD & CLEVIS ASSY.
21 1921159 1 CAPSCREW, Hex Hd., 1/4-20 x 2-1/4
22 1921319 3 WASHER, Flat 1/4
23 172038 1 KNOB, Internal Thread, 3/8-16
24 1722627 1 DASHBOARD & SUPPORT ASSAMBLY
25 1667588 4 BUSHING, Nylon
26 1714084 1 KNOB, Chute Control Spinner
27 1960093 1 NUT, Push, 3/8
28 1919438 4 NUT, Hex Lock ESNA Light, 5/16-18
29 1919326 2 WASHER, Flat 5/16
30 1722633 1 ROD & SPRING ASSEMBLY
31 1722690 1 SPRING, Compression
32 1960519 1 NUT, Push for 1/2" Stud
33 1722630 1 ROD, Free hand Control
34 1921962 1 CAPSCREW, Hex Head, 1/2-20 x 1 3/4
35 1722667 1 LEVER, L.H. (Traction Drive Clutch)
36 1923358 3 NUT, Hex, Centerlock, 1/4-20
37 1715655 2 SPACER, Large
38 1722637 1 HANDLE, L.H. (Traction Drive Control side)
39 1922837 2 CAPSCREW, Hex Hd., 1/4-20 x 1-1/2
40 1715654 2 SPACER, Small
41 1960556 2 CAPSCREW, Taptite, Pan Hd., Torx, 1/4-20 x 3/4
42 1921221 4 CAPSCREW, Hex Hd. 5/16-18 x 1-1/2
43 1722631 1 LEVER, Pivot
44 1920397 2 NUT, Hex Lock ESNA Light, 1/4-20
45 1715658 1 ROD, Chute Control
46 1720452 2 CLAMP, Tube, Saddle
47 1917356 5 LOCKWASHER, 5/16
48 1922127 2 CAPSCREW, Hex Hd. 5/16-18 x 1 3/4
49 1715659 1 CLUTCH ROD, Traction Drive
50 1921332 2 CAPSCREW, Hex Hd. 5/16-18 x 3/4
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
4
TP-400-2561-00-IW-S
Handles and Controls Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985917
Apply adhesive to
secure grips.
Ref. 29 required on
slotted holes only.
Shift rod assembly
(Ref. 20) must pivot
freely on pivot blocks
(Ref. 14).
Slot in support (Ref. 56)
towards rear of unit.
Mount bushings
with flange on
inside of brackets.
Insert shift rod (Ref. 13)
into inner hole of Ref. 15.
Use washers to shim
gear (Ref. 54) as required
to insure proper adjustment.
Position in slots of frame to be sure hub of gear
(Ref. 56) is tight against the inside surface of the
gear support (Ref. 51).
Locate under rear hole of
gear support (Ref. 51) only.
Must pivot freely
on capscrew (Ref 34).
Apply lubricant as required.
Must slide freely in
dash assembly (Ref 24).
Apply lubricant as required.
1
2
3
4
3
1
2
3
3
49
5
38
6
35
7
37
36
23
24
26
27
28
29
39
40
41
46
47
48
50
17
51
22
52
53
25
54
55
57
47
58
60
61
62
22
42
45
47
56
25
59
59
54
25
8
9
10
11
13
12
11
10
12
28
24
21
14
8
16
14
17
19
10
11
22
18
7
14 15
20
25
30
31
32
34
33
36
44
1622
43
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
5
TP-400-2561-00-IW-S
Handles and Controls Group
51 1718793 1 SUPPORT, Gear
52 1960518 2 NUT, Push
53 1960252 4 CARRIAGE BOLT, 1/4-20 x 5/8 G5
54 1718593 2 GEAR, Steel, Universal (Supersedes Plastic Gear)
55 1931333 1 CARRIAGE BOLT, 5/16-18 X 3/4
56 1715099 1 BRACKET, Worm Support
57 1919326 1 WASHER, Flat 5/16
58 1917372 1 NUT, Hex, 5/16-18
59 1960103 1 WASHER, Flat 3/8
60 1715117 1 WORM ASSEMBLY
61 916168 1 PIN, Spring
62 1960294 2 NUT, Hex Flange, Whiz Lock Small, 1/4-20
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
6
TP-400-2561-00-IW-S
Frame and Engine Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985620
Attach to Frame
Right rear only.
Engine
Use upper square hole on 5 HP
and lower square hole on 7 HP.
Required on rear
engine bolts only.
Torque all engine bolts
to 19 - 21 ft-lbs.
FRONT
(Auger)
Engine Pulley
(Traction Drive)
Idler Pulley
Traction
Drive Pulley
Engine Pulley
(Auger)
Idler Pulley
Auger Pulley
1.06"
.056"
Engine Pulley
(Auger)
Engine Pulley
(Traction Drive)
Torque to
10 - 14 ft-lbs.
(2 places)
Install with
hub facing
engine.
Leave .18" grip
between hex
nut and head
of cap screw.
Install with
hub facing
engine.
Attach to Idler arm
bottom hole.
1
27
27
43
18
17
16
9
11
19
12
12
12
14
15
13
20
21
22
23
26
28
29
30
31
32
33
17
16
3
19
16
17
18
17
19
36
41
42
19
40
39
27
24
7
10
37
338
4
25
1
2
3
4
5
6
47
48
46
44
45
49
50
34
35
1
48
8
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
7
TP-400-2561-00-IW-S
Frame and Engine Group
1 1921515 2 CAPSCREW, Hex Hd., 5/16-24 x 3/4
2 1924874 1 WASHER, 5/16
3 1715136 1 BELT STOP
4 1920427 2 LOCKWASHER, External Tooth, 3/8
5 * 1 555M 5 HP ENGINE, Tecumseh, Manual Start, (Models 1693980 & 1693981) Engine
Model # HSSK 50 Engine Type # 67261S
5 * 1 755M 7 HP ENGINE, Tecumseh, Electric Start (Model 1693983) Engine Model #
OHSK 70 Engine Type # 72523D
5 * 1 755M 7 HP OHV ENGINE, Tecumseh, Manual Start (Model 16933982) Engine
Model # OHSK 50 Engine Type # 72513B
6 ** 1 CORD, Electric Start (1693983)
7 1931277 3 NUT, Hex, Flange Whizlock, 5/16-18
8 931277 1 NUT, Hex Flange Whiz Lock, 5/16-18
9 1715092 1 ROD, Idler
10 916169 2 PIN, Spring
11 1720229 1 FRAME
12 1926018 6 NUT, Speed 1/4-20
13 1666001 2 BUSHING
14 1715559 1 TIE BAR SUPPORT
15 1929477 2 CAPSCREW, Taptite, #10-24 x 1/2
16 1960251 3 NUT, Hex, Jam, Center-lock, 3/8-16
17 1924940 4 WASHER, Flat
18 1674315 2 GUIDE, Belt
19 1930645 4 NUT, Hex, Flange, Locking, 3/8-16
20 1715756 1 FRAME BRACKET
21 1924856 4 CAPSCREW, Taptite, 5/16-18 X 1/2
22 1715111 1 SUPPORT, Pivot
23 1919381 2 WASHER
24 1922127 3 CAPSCREW, Hex Hd., 5/16-18 x 1-3/4
25 1922127 1 CAPSCREW, Hex Head, 5/16-18 x 1 3/4 G5
26 1715137 1 COVER, Bottom
27 1925003 9 CAPSCREW, Taptite, 1/4-20 x 1/2
28 1925125 1 WASHER, Flat 15/32
29 1918451 1 PIN, Cotter
30 1715112 1 ARM & SHAFT ASSY., Idler
31 1960268 1 CARRIAGE BOLT, 3/8-16 X 1-1/4
32 174870 1 SPACER
33 118414 1 PULLEY, Idler - Traction Drive
34 1717393 1 V-BELT, 4L, Auger Drive
35 1715127 1 V-BELT, 3L Traction Drive, (1693980 & 1693981)
35 1720234 1 V-BELT, 3L Traction Drive (1693982 & 1693983)
36 1715118 1 SPRING, Extension
37 1669313 1 PAD, Brake
38 925160 2 RIVET, Pop
39 1717319 1 ARM & HUB ASSY., Idler/Brake (Includes Ref. 37 and 38)
40 1931353 1 CARRIAGE BOLT, 3/8-16 x 1-3/4
41 1922755 1 WASHER, 3/8
42 1668477 1 PULLEY, Idler - Auger Drive
43 1715434 1 COVER, Belt, (1693980 & 1693981)
43 1720403 1 COVER, Belt, (1693982 & 1693983)
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* See your local Tecunseh distributor for service parts.
** Not a servicable part.
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
8
TP-400-2561-00-IW-S
Frame and Engine Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
E985919
Attach to Frame
Right rear only.
Engine
Use upper square hole on 5 HP
and lower square hole on 7 HP.
Required on rear
engine bolts only.
Torque all engine bolts
to 19 - 21 ft-lbs.
FRONT
(Auger)
Engine Pulley
(Traction Drive)
Idler Pulley
Traction
Drive Pulley
Engine Pulley
(Auger)
Idler Pulley
Auger Pulley
1.06"
.056"
Engine Pulley
(Auger)
Engine Pulley
(Traction Drive)
Torque to
10 - 14 ft-lbs.
(2 places)
Install with
hub facing
engine.
Leave .18" grip
between hex
nut and head
of cap screw.
Install with
hub facing
engine.
Attach to Idler arm
bottom hole.
1
27
27
43
18
17
16
9
11
19
12
12
12
14
15
13
20
21
22
23
26
28
29
30
31
32
33
17
16
3
19
16
17
18
17
19
36
41
42
19
40
39
27
24
7
10
37
338
4
25
1
2
3
4
5
6
47
48
46
44
45
49
50
34
35
1
48
8
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
9
TP-400-2561-00-IW-S
Frame and Engine Group
44 1720237 1 SPRING, Extension
45 920438 1 NUT, Hex, Jam, 5/16-24
46 924819 1 KEY, Hi-Pro, 1/8 x 5/8
47 1674325 1 PULLEY, Engine - Traction Drive
48 1960619 2 SET SCREW, Hex Socket Cup Point, 5/16-18 x 5/16
49 1720313 1 PULLEY, Engine - Auger Drive
50 905850 1 KEY, Parallel, 3/16 x 3/16
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
10
TP-400-2561-00-IW-S
Auger Drive and Impeller Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985496
Apply a bead of gasket eliminator
into rear seal groove and flat surface
just past groove (Ref. 15 & 20) on both
halves. Also, apply to bushing bore surface.
Be careful not to over apply as excess will
cause lip seal to not function properly.
Torque to
9 - 11 ft-lbs.
Torque to
30 - 44 ft-lbs.
Torque (Ref. 2) to
17 - 22 ft-lbs.
Hub of pulley
to face auger.
Locate pulley on worm shaft
(Ref. 10) so the belt is 1.94"
from rear of impeller housing.
Apply grease until it appears
at ends of auger assembly.
Auger stamped "L".
Place 1 or 2 washers
per side as required.
Auger stamped "R".
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2
3
3
17
13
29
28
24
25
23
26
27
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
11
TP-400-2561-00-IW-S
Auger Drive and Impeller Group
1 1715091 1 PULLEY,Auger Drive
2 1930540 2 SETSCREW, Square Head Cup Point, 3/8-18 x 5/8
3 905123 3 KEY, Woodruff 3/16 x 3/4
4 1960474 1 SETSCREW, Square Head Cup Point, 3/8-16 x 1/2
5 1715120 1 IMPELLER
6 1612093 1 SEAL, Oil
7 1666425 1 BUSHING
8 936098 1 PIN, Drive-Lock 3/16 x 1-1/2
9 1721680 1 THRUST COLLAR
10 1660240 1 SHAFT, Worm
11 1670971 1 WASHER, Thrust
12 1666424 1 BUSHING
13 1676027 2 SEAL, Oil
14 1923358 6 NUT, Lock, 1/4-20
15 1721684 1 GEAR CASE COVER, R.H.
16 1721676 1 GASKET
17 1676026 2 BUSHING
18 1716127 1 SHAFT, Auger
19 1676024 1 GEAR, Worm
20 1721685 1 GEAR CASE COVER, L.H.
21 960625 1 PIPE PLUG, 1/8 NPT
22 1924009 6 CAPSCREW, Hex Hd. 1/4-20 x 7/8
23 921133 2 GREASE FITTING
24 1718781 1 AUGER, R.H. 22", Serrated
25 1718780 1 AUGER, L.H. 22", Serrated
26 1918447 2 PIN, Cotter 3/32 x 3/4
27 1668344 2 PIN, Shear
28 1960114 4 WASHER
29 927794 2 RING, Retaining
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
12
TP-400-2561-00-IW-S
Auger Housing and Chute Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985918
Place Ref. 3
between chute
and deflector.
Seal must
cover openings
at hinge pivot.
Coat top and bottom of
chute ring with grease.
Mounts to underside
of housing.
1
2
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
25
25
26
27
28
29
24
4
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
13
TP-400-2561-00-IW-S
Auger Housing and Chute Group
1 1670578 1 KNOB
2 1919326 1 WASHER, Flat, 5/16
3 960210 1 WASHER, Nylon
4 1706085 2 DECAL, Hinge, Orange
5 1715115 1 CHUTE & DEFLECTOR ASSEMBLY
6 1931333 1 CARRIAGE BOLT, 5/16-18 x 3/4
7 1960126 2 NUT, Push Pas, 1/4
8 1612455 1 CHUTE, Guard
9 1925205 4 CAPSCREW, Hex Hd. 5/16-18 x 5/8
10 1917356 3 LOCKWASHER, 5/16
11 1665982 1 RETAINER, Bearing
12 108202 1 BEARING, Ball
13 1722687 1 HOUSING ASSEMBLY
14 1722649 1 AUGER PLATE, L.H. End
15 1666001 2 BUSHING
16 177434 2 SKID, Snowthrower (Set of 2 available under PN 1685501)
17 1924940 4 WASHER, Flat,13/32 x 7/8 x 5/64
18 1916965 4 LOCKWASHER, 3/8
19 1916950 4 NUT, Hex Hd. 3/8-16
20 1931348 4 CARRIAGE BOLT, 3/8-16 x 3/4
21 1675080 1 BLADE, Scraper
22 1927428 5 CAPSCREW, Taptite, 1/4-20 x 3/8
23 1930659 3 NUT, Retainer, 5/16-18
24 1930641 12 NUT, Hex Flange, Whiz-Lock, 1/4-20
25 1722650 1 AUGER PLATE, R.H. End
26 1931315 11 CARRIAGE BOLT, 1/4-20 x 1/2
27 1666613 2 HOLD DOWN, Chute
28 1667865 2 SPRING, Flat
29 1960001 2 CAPSCREW, Hex Washer Hd., Plastite #10-14 x 5/8
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
14
TP-400-2561-00-IW-S
Traction Drive Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
984936
Apply loctite to
screws and torque
to 55 - 60 in-lbs
(2 places).
Pack groove
with grease.
Apply locktite and
torque to 8 - 10 ft. lbs.
Retainer to be
loacted inside frame.
Tighten when all parts are
tight against shoulder of hub.
Maximum gap between Ref 19
and 22 when assembled .005" - .007".
Torque to
10 - 14 ft-lbs.
Retainer to be
loacted inside frame.
Coat with synthetic
5W-50 motor oil.
Apply anti-seize
to both ends.
Bell crank must
pivot freely.
Flat side
toward bearing.
Earred end
With hub (Ref. 32) away from pivot arm
assembly (Ref. 35), tighten so that drive disk
(Ref. 39) has no play, but is still free rotate.
Torque to
10 - 14 ft-lbs.
Remove all play out of axle by
moving axle to left, move set
collar (Ref. 27) to the right to
take all play out of sprocket
assembly (Ref. 29) and tighten.
Befiore making this adjustment
be sure tie bar support (see Frame Group)
Is installed between frame sides.
1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
10
11
5
12
13
9
27
28
29
30
31
32
33
34
35
36
38
39
40
41
42
43
44
45
46
28
41
12
13
19
37
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
15
TP-400-2561-00-IW-S
Traction Drive Group
1 1930601 3 CAPSCREW, Taptite, 5/16-18 x 5/8
2 1673994 1 BRACKET
3 1916950 1 NUT, Hex, 3/8-16
4 1916965 1 LOCKWASHER, 3/8
5 1669256 1 SHIFT ARM ASSY, w/Bushing
6 1666114 1 BUSHING
7 1924940 1 WASHER
8 1923701 1 CAPSCREW, Hex Hd., 3/8-16 x 2
9 1925205 3 CAPSCREW, Hex Hd., 5/16-18 x 5/8
10 1722703 2 BEARING, Ball
11 1667341 2 RETAINER, Bearing
12 1917356 7 LOCKWASHER, 5/16
13 1917372 7 NUT, Hex 5/16-18
14 1715093 1 SHAFT, Hex
15 927794 1 E-RING, Retaining
16 1921332 3 CAPSCREW, Hex. Hd. 5/16-18 x 3/4
17 1665975 1 DISC,Friction
18 1665995 1 HUB, Friction Disc
19 1678956 2 COLLAR, Thrust
20 1666207 1 PIN, Loop
21 1960348 2 SET SCREW, Hex Skt. Cup Pt.1/4-20 x 3/8
22 1667335 1 COLLAR, Set
23 1715094 1 SPROCKET, 10T
24 1960353 1 WASHER, Flat,
25 1916964 1 LOCKWASHER, 1/4
26 1923341 1 CAPSCREW, Hex Hd., 1/4-20 x 3/4
27 8021010 1 COLLAR, Set
28 1928721 2 SET SCREW, Square Head Cup Point, 5/16-18 x 1/2
29 1715095 1 AXLE & SPROCKET ASSY.
30 1715130 1 CHAIN, Roller, #40 x 25
31 1715101 1 BUSHING
32 1715253 1 PULLEY, Traction
33 1935048 2 NUT, Centerlock, Hex Flange Hd., 5/16-18
34 1665844 2 SPACER
35 1715734 1 PIVOT ASSY.
36 1925205 2 CAPSCREW, Hex Hd. 5/16-18 x 5/8
37 1666379 1 WASHER
38 930672 1 KEY,Hi-Pro
39 1719879 1 DRIVE, Disc,w/Spindle
40 1715131 1 PIVOT ROD
41 1918451 2 PIN, Cotter 1/8 x 3/4
42 1919438 1 NUT, Hex Lock, Esna, 5/16-18
43 1919326 1 WASHER, Flat
44 1700473 1 BELLCRANK
45 1666106 1 BUSHING
46 1922127 1 CAPSCREW, Hex Hd. 5/16-18 x 1-3/4
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
16
TP-400-2561-00-IW-S
Decals Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
B985924
DANGER
1716532
Seal must
cover openings
at hinge pivot.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
10
10
612
11
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
17
TP-400-2561-00-IW-S
Decals Group
1 1715557 1 DECAL, Speed Selector
2 1722640 1 DECAL, Auger Control
3 1722643 1 DECAL, Warning / Main Dash Panel
4 1715558 1 DECAL, Simplicity Logo
5 1714107 1 DECAL, 755
5 1714108 1 DECAL, 555
6 1722674 1 DECAL, Danger, Discharge Chute
7 1716532 1 DECAL, Danger, Auger
8 * 1 DECAL, OPEI (Not Serviced)
9 * 1 I.D. Tag (Not serviced)
10 1720454 1 DECAL, Touch-up Paint ID
11 1722867 1 DECAL, Handle Lubrication
12 1706085 2 DECAL, Hinge, Orange
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* Not a serviceable part.
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
18
TP-400-2561-00-IW-S
Wheels and Tires Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
984933
4
3
1
6
5
2
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
© Copyright 2001 Simplicity Manufacturing, Inc. All Rights Reserved.
19
TP-400-2561-00-IW-S
Wheels and Tires Group
1 1666969 2 KLIK-PIN
2 172353 2 VALVE STEM & CAP
3 1664090 2 TUBE, Tire
4 1715125 2 *WHEEL
4 1723286 2 **WHEEL
5 1715126 2 *TIRE
5 1723287 2 **TIRE
6 1715124 2 *WHEEL & TIRE ASSEMBLY, (Includes Ref. 2-5)
6 1723169 2 **WHEEL & TIRE ASSEMBLY, (Includes Ref. 2-5)
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* Serial number break 1693980 (SN 1 - 84) 1693981 (SN 1) 1693982 (SN 1 - 17) 1693983 (SN 1 - 794)
** Serial number break 1693980 (SN 85 and above) 1693981 (SN 2 and above) 1693982 (SN 18 and above)
1693983 (SN 795 and above) When replacing reference 6 with 1715124 with 1723169 you must replace both
tires because the difference in tire size is 1 in. (14” to 15”).
The above parts group applies to the following Mfg. Nos.:
1693980 555M, 5HP Manual Start
1693981 555M, 5HP Manual Start (Exp.)
1693982 755M, 7HP Manual Start (Exp.)
1693983 755E, 7HP Electric Start
Torque Specification Chart
FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)
Hardware
Grade
SAE Grade 2 SAE Grade 5 SAE Grade 8
Size Of
in/lbs in/lbs
in/lbs
Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm.
8-32
19
2.1
30
3.4
41
4.6
8-36
20
2.3
31
3.5
43
4.9
10-24
27
3.1
43
4.9
60
6.8
10-32
31
3.5
49
5.5
68
7.7
1/4-20
66
7.6 8 10.9 12 16.3
1/4-28
76
8.6 10 13.6 14 19.0
5/16-18 11 15.0 17 23.1 25 34.0
5/16-24 12 16.3 19 25.8 27 34.0
3/8-16 20 27.2 30 40.8 45 61.2
3/8-24 23 31.3 35 47.6 50 68.0
7/16-14 30 40.8 50 68.0 70 95.2
7/16-20 35 47.6 55 74.8 80 108.8
1/2-13 50 68.0 75 102.0 110 149.6
1/2-20 55 74.8 90 122.4 120 163.2
9/16-12 65 88.4 110 149.6 150 204.0
9/16-18 75 102.0 120 163.2 170 231.2
5/8-11 90 122.4 150 204.0 220 299.2
5/8-18 100 136 180 244.8 240 326.4
3/4-10 160 217.6 260 353.6 386 525.0
3/4-16 180 244.8 300 408.0 420 571.2
7/8-9 140 190.4 400 544.0 600 816.0
7/8-14 155 210.8 440 598.4 660 897.6
1-8 220 299.2 580 788.8 900 1,244.0
1-12 240 326.4 640 870.4 1,000 1,360.0
Hex Head Capscrew
Hex Nut
Lockwasher
Washer
Carriage Bolt
NOTES
1. These torque values are to be used for all hardware
excluding: locknuts, self-tapping screws, thread forming
screws, sheet metal screws and socket head setscrews.
2. Recommended seating torque values for locknuts:
a. for prevailing torque locknuts - use 65% of grade 5
torques.
b. for flange whizlock nuts and screws - use 135% of
grade 5 torques.
3. Unless otherwise noted on assembly drawings, all torque
values must meet this specification.
Hardware Identification & Torque Specifications
Common Hardware Types
Screw, 1/2 x 2
Body
Diameter
Body
Length
Inside
Diameter
Nut, 1/2”
No
Marks
3/8” Bolt or Nut
Wrench—9/16”
3/8
5/16” Bolt or Nut
Wrench—1/2”
5/16
1/4” Bolt or Nut
Wrench—7/16”
1/4
1/2” Bolt or Nut
Wrench—3/4”
1/2
DIA.
7/16
DIA.
7/16” Bolt or Nut
Wrench (Bolt)—5/8”
Wrench (Nut)—11/16”
Wrench & Fastener Size Guide
Standard Hardware Sizing
When a washer or nut is identified as 1/2”, this is the
Nominal size
, meaning the
inside diameter
is 1/2 inch; if a
second number is present it represent the
threads per inch
When bolt or capscrew is identified as 1/2 - 16 x 2”, this
means the
Nominal size
, or
body diameter
is 1/2 inch; the
second number represents the
threads per inch
(16 in this
example, and the final number is the
body length
of the
bolt or screw (in this example 2 inches long).
The guides and ruler furnished below are designed to
help you select the appropriate hardware and tools.
0
1/4 3/4
1/2
1
1/4 3/4
1/2
2
1/4 3/4
1/2
3
1/4 3/4
1/2
4
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