Simplicity 1280 User Manual
Parts Manual
1280 Large Frame
Two-Stage Snowthrowers
12HP Snowthrowers
Mfg. No. Description
1694438 1280M, 12HP Snowerthrower (CE)
1694442 1280E, 12HP Snowthrower
09/2003
Rev.
TP 400-3893-00-LW-S
Table Of Content
s
TRACTOR / MOWER DECK COMPONENTS PAGES
Handles and Controls Group .................................................................................................
Engine and Frame Group - 12HP Electric Start ....................................................................
Engine and Frame Group - 12HP Manual Start ....................................................................
Auger and Impeller Group - 32" .............................................................................................
Auger Housing and Chute Group - 32" ..................................................................................
Traction Drive Group .............................................................................................................
Wheels & Tires Group ...........................................................................................................
Decals Group - 1280 .............................................................................................................
Headlight Group ....................................................................................................................
12
16
18
22
26
28
30
Torque Specification Chart ..................................................................... Inside Back Cover
4
8
Handles and Controls Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
4
71
49
73
72
70
6
10
59
60
69
57
56
58
54
29
58
30
31
68
64
63
65
57
55
Shift rod assembly
(Ref. 54) must pivot
56
freely on pivot blocks
(Ref. 59).
67
65
56
66
57
79
63
Linkage adjustment for traction and auger drive
with power boost: with drive levers engaged, the
bottom end of lower rods (Ref. 33 & 67) should be
flush with bottom of springs (Ref. 32 & 68).
77
7
61
76
38
59
6
5
78
62
986391
1
Apply adheasive to
secure grips.
6
8
11
9
6
13
53
24
58
3
74
80
22
15
16
12
Torque to
19 - 29 ft-lbs.
45
46
36
2
18
19
20
21
17
3
34
35
25
75
6
8
6
26
36
99
27
23
51
14
28
37
52
29
39
36
Mount bushings
(Ref. 36) with flanges
on inside of brackets
(Ref. 41 & 48).
40
41
42
43
47
33
36
32
31
38
30
38
39
44
48
20
49
50
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
1694438 - 1280M
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
4
TP 400-3893-00-LW-S
Handles and Controls Group
PART NO. DESCRIPTIONREF NO. QTY.
1 1667800 1 DASHBOARD
2 1935450 4 CAPSCREW, Hex Head, 1/4-20 x 3/4
3 1920397 4 NUT, Hex Lock, 1/4-20
4 1612165 1 HANDLE, Clutch, RH
5 1668608 2 GRIP
6 1668185 6 BUSHING, Nylon
7 1702663 1 ROD, Clutch
8 1725205 2 LEVER & TUBE ASSEMBLY
9 1960471 4 CAPSCREW, Hex Washer Head, #12-24 x 1
10 1928732 1 CAPSCREW, Hex Washer Head, #10-24 x 1
11 1705899 1 GUIDE, Control
12 1927429 2 CAPSCREW, Hex Washer Head, 1/4-20 x 5/8
13 1723935 1 BRACKET, Shift Control
14 1925003 4 CAPSCREW, Hex Head, Taptite, 1/4-20 x 1/2
15 1723965 2 HAND GRIP, Heated
16 1921221 1 CAPSCREW, Hex Head, 5/16-18 x 1-1/2
17 1678579 1 SPACER
18 1705898 1 LATCH, Control
19 1701342 1 SPRING, Compression
20 1919326 2 WASHER, 5/16
21 1923362 1 NUT, Hex, Center Lock, 5/16-18
22 1724096 4 RIVET, Pop
23 1725702 1 SCREW, Pan Torx Head, #10 x 1/2
24 1923341 1 CAPSCREW, Hex Head, 1/4-20 x 3/4
25 1725124 1 HANDLE ASSEMBLY
26 1677453 1 ROD, Control
27 1612167 1 HANDLE, Clutch, LH
28 1668121 1 ROD, 17.3" Lo ng
29 928704 2 NUT, LH, Machine Screw, Hex, #10-24
30 108775 2 TURNBUCKLE
31 1916621 2 NUT, RH, Machine Screw, He x, #1 0-24
32 1707452 1 SPRING
33 1668526 1 ROD, Clutch
34 1960093 1 PUSH NUT
35 1714084 1 KNOB, Spinner
36 1667588 4 BUSHING, Nyl o n
37 1715658 1 ROD, Chute Co ntrol
38 1918452 3 PIN, Cotter
39 1718593 2 GEAR
40 1960294 2 NUT, Hex Flange, 1/4-20
Footnotes
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
1694438 - 1280M
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
5
TP 400-3893-00-LW-S
Handles and Controls Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
4
71
49
73
72
70
6
10
59
60
69
57
56
58
54
29
58
30
31
68
64
63
65
57
55
Shift rod assembly
(Ref. 54) must pivot
56
freely on pivot blocks
(Ref. 59).
67
65
56
66
57
79
63
Linkage adjustment for traction and auger drive
with power boost: with drive levers engaged, the
bottom end of lower rods (Ref. 33 & 67) should be
flush with bottom of springs (Ref. 32 & 68).
77
7
61
76
38
59
6
5
78
62
986391
1
Apply adheasive to
secure grips.
6
8
11
9
6
13
53
24
58
3
74
80
22
15
16
12
Torque to
19 - 29 ft-lbs.
45
46
36
2
18
19
20
21
17
3
34
35
25
75
6
8
6
26
36
99
27
23
51
14
28
37
52
29
39
36
Mount bushings
(Ref. 36) with flanges
on inside of brackets
(Ref. 41 & 48).
40
41
42
43
47
33
36
32
31
38
30
38
39
44
48
20
49
50
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
1694438 - 1280M
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
6
TP 400-3893-00-LW-S
Handles and Controls Group
PART NO. DESCRIPTIONREF NO. QTY.
41 1718793 1 SUPPORT, Gear
42 1960518 2 PUSH NUT
43 1960252 2 CARRIAGE BOLT, 1/4-20 x 5/8
44 1725283 1 ROD, Chu te
45 1668186 1 GEAR, Worm
46 916168 2 PIN, Spring, 1/8 x 3/4
47 1931333 1 CARRIAGE BOLT, 5/16-18 x 3/4
48 1611911 1 SUPPORT, Worm
49 1917356 2 LOCKWASHER, Spring, 5/16
50 1917372 1 NUT, Hex, 5/16-1 8
51 1664022 1 GROMMET
52 1930591 6 CAPSCREW, Hex Whiz Lock, 5/16-18 x 3/4
53 1718791 1 CABLE & HANDLE ASSEMBLY, Clutch (Includes Ref. 75)
54 1714120 1 SHIFT ASSEMBLY, Rod & Clevis
55 1713844 1 KNOB
56 1916622 3 NUT, Hex, 1/4-20
57 1916964 3 LOCKWASHER, Spring, 1/4
58 1921319 1 WASHER, 1/4
59 1668524 2 BLOCK, Pivot
60 1703043 1 ROD & ARM ASSEMBLY, Pivot
61 1921159 1 CAPSCREW, Hex Head, 1/4-20 x 2 1/4
62 1924361 1 WASHER, 1/2
63 1918447 3 PIN, Cotter
64 1720448 1 ROD, Shift, Up pe r
65 1931317 2 CARRIAGE BOLT, 1/4-20 x 3/4
66 1666255 1 ROD, Shift, Lo wer
67 1702004 1 ROD, Clutch, Lo w e r
68 1701996 1 SPRING
69 1702485 1 ROD, Clutch, Upper
70 1702552 1 SPACER
71 1919381 1 WASHER, 5/16
72 1702662 1 LEVER, Clutch
73 1922127 1 CAPSCREW, Hex Head, 5/16-18 x 3/4
74 1931277 6 NUT, Hex Flange, 5/16-18
75 1718804 1 TRIGGER ASSEMBLY, Easy Turn Clutch Cable
76 1668681 1 WASHER, Curved, 1/2
77 1723967 1 SWITCH, Heated Grips, Rocker
78 1725439 1 HARNESS, Wiring
79 1701011 2 TIE, Self Locking
80 1724037 1 RESISTOR BLOCK
Footnotes
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
1694438 - 1280M
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
7
TP 400-3893-00-LW-S
Engine and Frame Group - 12HP Electric Start
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2
Long hub of idler pulley
(Ref. 27) to be toward
idler arm (Ref. 25).
Position idler pulley (Ref. 34) at
center of slot in clutch arm (Ref. 31).
1
Use 0-2
washers
between
Ref. 58 & 31
to assure a
centered
belt and no
interference
between
pulleys Ref.
27 & 34.
58
57
57
28
32
31
29
27
30
28
25
26
23
21
Hook one end of spring (Ref. 24)
into top hole of idler arm (Ref. 25)
and other end into top hole of the
pilot arm assembly in the Traction
Drive Grou p .
60
34
24
22
33
21
57
30
36
20
35
986376
3
59
Hook one end of spring
4
19
18
61
(Ref. 36) over clutch rod
5
assembly (Ref. 31)
6
between tabs and other
end into slot in frame.
7
13
14
8
9
11
10
12
15
16
17
50
51
52
53
54
55
46
47
Torque to
10 - 12 ft. lbs.
Position belt stop (Ref. 42)
1/16 to 1/8 inch from belt
when auger clutch is
engaged.
49
48
44
21
43
44
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
45
42
43
42
21
Right rear bolt
37
62
63
40
40
41
8
38
39
TP 400-3893-00-LW-S
Engine and Frame Group - 12HP Electric Start
PART NO. DESCRIPTIONREF NO. QTY.
1 1676460 1 BE LT, Traction
2 1700415 1 BELT, Auger Drive
3 1725287 1 GUARD, Bel t
4 1935255 2 NUT, Speed, 5/16-18
5 920426 2 LOCKWASHER, Ext. Tooth, 5/16
6 1918249 2 SCREW, Truss Head, 5/16-18 x 3/4
7 1725270 1 F RA ME, Main
8 1931317 2 CARRIAGE BOLT, 1/4-20 x 3/4
9 1720404 1 SUPPORT, Clutch Cable
10 1921319 2 WASHER, 1/4
11 1916964 2 LOCKWASHER, Spring, 1/4
12 1916622 2 NUT, Hex 1/4-2 0
13 1930591 2 CAPSCREW, Hex Head, Whizlock, 5/16-18 x 3/4
14 1664847 4 CAPSCREW, Hex Head, Taptite, 5/16-18 x 3/8
15 1666374 1 COVER, Botto m
16 1926018 6 NUT, Speed, 1/4-20
17 1925003 6 CAPSCREW, Hex Head, Taptite, 1/4-20 x 1/2
18 1669198 1 SUPPORT, Tie Bar
19 1930595 2 CAPSCREW, Hex Head, Whizlock, 5/16-18 x 1-1/4
20 1927557 4 NUT, Hex, Whizlock, 5/1 6 - 1 8
21 1919326 6 WASHER, 11/32 x 3/4
22 1702969 2 GUIDE, Belt
23 1923362 2 NUT, Hex, Centerlock, 5/16-18
24 1672735 1 SPRING, Idler
25 1703046 1 ARM, Idler, Tracti o n
26 1665994 1 PIN
27 1668477 1 PULLEY, Idler
28 1928731 2 LOCKNUT, Jam, 3/8-16
29 1960647 1 CAPSCREW, Hex Head, 3/8-16 x 1-1/2
30 1918451 2 PlN,Cotter, 1/8 x 3/4
31 1612200 1 CLUTCH ROD & BRAKE ASSEMBLY
32 1669313 1 PAD, Brake
33 925160 2 RIVET, Pop
34 154534 1 PULLEY
35 1921971 1 CAPSCREW, Hex Head, 3/8-16 x 1-3/4
36 1724503 1 SPRING, Extension
37 * 1 ENGINE, Briggs & Stratton, 12 H.P. Electric Start - Engine Model
#20G4140111E1
38 1725326 4 SUPPORT, Engine Riser
39 1935159 3 CAPSCREW, Hex Head, 5/16-18 x 2-1/2, Black
40 1931277 1 NUT, Hex Flange, 5/16-18
Footnotes
* See your local Briggs & Stratton distributor for Parts & Service.
** Not a Servic e P ar t.
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
9
TP 400-3893-00-LW-S
Engine and Frame Group - 12HP Electric Start
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2
Long hub of idler pulley
(Ref. 27) to be toward
idler arm (Ref. 25).
Position idler pulley (Ref. 34) at
center of slot in clutch arm (Ref. 31).
1
Use 0-2
washers
between
Ref. 58 & 31
to assure a
centered
belt and no
interference
between
pulleys Ref.
27 & 34.
58
57
57
28
32
31
29
27
30
28
25
26
23
21
Hook one end of spring (Ref. 24)
into top hole of idler arm (Ref. 25)
and other end into top hole of the
pilot arm assembly in the Traction
Drive Grou p .
60
34
24
22
33
21
57
30
36
20
35
986376
3
59
Hook one end of spring
4
19
18
61
(Ref. 36) over clutch rod
5
assembly (Ref. 31)
6
between tabs and other
end into slot in frame.
7
13
14
8
9
11
10
12
15
16
17
50
51
52
53
54
55
46
47
Torque to
10 - 12 ft. lbs.
Position belt stop (Ref. 42)
1/16 to 1/8 inch from belt
when auger clutch is
engaged.
49
48
44
21
43
44
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
45
42
43
42
21
Right rear bolt
10
40
41
37
62
63
40
38
39
TP 400-3893-00-LW-S
Engine and Frame Group - 12HP Electric Start
PART NO. DESCRIPTIONREF NO. QTY.
41 960551 1 CAPSCREW, Hex Head, 5/16-18 x 2-1/2, Black
42 1702970 2 GUIDE, Belt
43 1917356 2 LOCKWASHER, 5/16
44 1921515 2 CAPSCREW, Hex Head, 5/16-24 x 3/4
45 1672129 1 KEY, Parallel, 3/16 x 13/16 x 7/8
46 1724454 1 PULLEY, Traction
47 1701818 1 WASHER, Thrust
48 1702425 1 SPRING, Compression
49 1701849 1 SPRING, Compression
50 ** 1 WICK, Oil (Not a Service Part)
51 1702017 1 PULLEY, Drive
52 1701776 1 PULLEY, Drive
53 1922755 1 WASHER, 13/32 x 1
54 1916965 1 LOCKWASHER, Spring, 3/8
55 1922128 1 CAPSCREW, Hex Head, 3/8-24 x 1-1/2
56 1725399 1 DECAL, 12HP Briggs & Stratton (Not Shown)
57 1924940 3 WASHER, Flat, 13/3 2
58 157081 1 SPACER
59 ** 1 CORD, Electric, 3 Prong (Not a Service Part)
60 1724455 1 PIPE, Oil Drain
61 1724456 1 CAP, Hex, 1/2 x 18 NPT
62 1725664 1 GUARD, Muffler
63 1929477 3 CAPSCREW, Hex Washer Head, Taptite, #10-24 x 1/2
Footnotes
* See your local Briggs & Stratton distributor for Parts & Service.
** Not a Servic e P ar t.
The above parts group applies to the following Mfg. Nos.:
1694442 - 1280E
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved.
2003
11
TP 400-3893-00-LW-S
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