OPERATOR'S MANUAL
SNOWTHROWERS
ST1028S
ST1130S
ST1332S
MT1735193 (10/19/07)
Table Of Content
s
PRODUCT COMPONENTS PAGES
Handles and Controls Group ...............................................................................................................................
Engine and Frame Group - Steerable .................................................................................................................
Auger Drive Group - 26", 28", 30" & 32" ..............................................................................................................
Auger Housing and Chute Group - 28", 30" & 32" ...............................................................................................
Traction Drive Group - Steerable .........................................................................................................................
Wheels and Tires Group ......................................................................................................................................
Decal Group .........................................................................................................................................................
10
12
14
18
20
Torque Specification Chart ..................................................................... Inside Back Cover
4
8
Handles and Controls Group
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987752
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
4
TP 400-4677-02-LW-T
Handles and Controls Group
PART NO. DESCRIPTIONREF NO
Frontier Model ST1028S, ST1130S & ST1332S
CAPSCREW, Hex Head 3/8-16 x 2 G5 1 MT1923701SM
ROD, Remote Chute 3 MT1732427SM
WASHER, 3/8 4 MT1924356SM
SPRING, Compression .509 DIA x 3/4 5 MT50786MA
WASHER, 3/8 6 MT1918266SM
NUT, Hex Loc k ESNA Light 3/8-16 NC3B 7 MT1919439SM
HANDLE, Clutch L.H. 8 MT1722667SM
ROD & PLATE ASSEMBLY, Speed Control 10 MT1733205SM
CAPSCREW, Hex Head 1/4-20 x 2-1/2 G5 11 MT1923282SM
CAPSCREW, Hex Head 1/4-20 x 1-3/4 G5 12 MT1921962SM
BRACKET, Speed & Deflector Control 12GA 13 MT1733045ASM
ROD, Link Speed Control 14 MT1734354SM
NUT, Hex Flange 5/16-18, Whiz Lock Small 15 MT1931277SM
CABLE, Deflector Control 16 MT1732971SM
NUT, Hex 5/16-24 17 MT2820263SM
BALLJOINT, Steel 19 MT50782MA
LOCKWASHER, Spring 5/16 20 MT1917356SM
NUT, Push Pal 5/16 Diameter Stud Capped 21 MT1960093SM
KNOB, Spinner 22 MT1714084SM
ROD, Chute Control 23 MT1715658SM
HARNESS, Wiring Handwarmers (Used on ST1130S & ST1332S) 24 MT1732738SM
SWITCH, Rocker Hand Warmer (Used on ST1130S & ST1332S) 25 MT1732563SM
BUSHING 26 MT1667588SM
CARRIAGE BOLT, 1/4-20 x 3/4 G5 (Used on ST1130S & ST1332S) 27 MT1931317SM
RESISTOR BLOCK, Hand Warmers (Used on ST1130S & ST1332S) 28 MT1724037SM
NUT, Hex KEPS 1/4-20 Conical Washer (Used on ST1130S & ST1332S) 29 MT1960685SM
NUT, Hex Lock E S NA Li gh t 1/4-20 30 MT1920397SM
SCREW, Hex Washer Head Taptite 1/4-20 x 5/8 31 MT1927429SM
KNOB, Interior Thread 3/8-16 32 MT1732470SM
COVER, Panel 16GA 33 MT1733778FSM
SCREW, Truss Head Torx Drive 1/4-20 x 3/4 34 MT1960715SM
PLUG, Dash Hole (Used on ST8526 & ST1028S) 35 MT1709188SM
CAPSCREW, Hex Head 1/4-20 x 1-1/2 G5 36 MT1922837SM
CARRIAGE BOLT, 5/16-18 x 3/4 G5 37 MT1931333SM
SUPPORT, Dash Panel Cover 39 MT1732064ASM
CABLE & SPRING ASSEMBLY, Auger Drive R.H. 40 MT1732471SM
HANDLE, Clutch R.H. 41 MT1722638SM
NUT, Hex Centerlock 1/4-20 42 MT1923358SM
GRIP, Black Soft 1" Diameter (Used on ST8526 & ST1028S) 43 MT1726317SM
HAND GRIP, Heated 1" Diameter (Used on ST1130S & ST1332S) 43 MT1723965SM
SPACER, Handle 44 MT1715655SM
SPACER 45 MT1678392SM
HANDLE, Upper R.H. Tubular 47 MT1734587ASM
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
5
TP 400-4677-02-LW-T
Handles and Controls Group
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987752
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
6
TP 400-4677-02-LW-T
Handles and Controls Group
PART NO. DESCRIPTIONREF NO
Frontier Model ST1028S, ST1130S & ST1332S
HANDLE, Upper L.H. Tubular 48 MT1734586ASM
CARRIAGE BOLT, 5/16-18 x 2-1/4 G5 49 MT1960723SM
HANDLE, Lower Tubular 50 MT1732781ASM
NUT, Hex Flange 5/16-18 ESNA 51 MT1960686SM
SCREW, Hex Washer Head Taptite 5/16-18 x 3/4 53 MT1664847SM
BRACKET, Cable Adjusting 13GA 54 MT313441MA
BOOT, Spring End Cover 55 MT308146MA
CABLE, Drive 56 MT1502113MA
SHIM, Spacer 18GA (Used on ST8526 & ST1028S) 57 MT1733730SM
SPACER 58 MT1679166SM
BRACKET, Free Hand Control 59 MT1733505ASM
SPACER, Powdered Metal 60 MT1733095SM
ROD & SPRING ASSEMBLY, w/Pin 61 MT1733509SM
WASHER, 1/2 62 MT1960027SM
SPRING, Compression 63 MT2108360SM
WASHER, 1/4 64 MT1960353SM
ROD, Hold Down 65 MT1722630SM
HEADLIGHT ASSEMBLY, Oval Clear (Used on ST1028S ST1130S & ST1332S) 66 MT1732322SM
TIE, Self Locking (Used on ST1130S & ST1332S) 67 MT1701011SM
KNOB, Slot Speed 68 MT1733192SM
SPOOL CABLE, Auger Control 69 MT579860MA
ROD & YOKE ASSEMBLY, Chute 70 MT1732761SM
PIN, Spring 71 MT2816168SM
SUPPORT, Worm 10GA 72 MT1611911SM
WORM, Chute L.H. 73 MT1668186SM
SCREW, Round Head Phillips #10-24 x 3/4 75 MT1960589SM
NUT, Hex Lock 10-24 W/Nylon Insert 76 MT1933896SM
PIN, Universal Joint 80 MT578060MA
BLOCK, Universal Pivot 81 MT578063MA
PIN, Cotter 82 MT579493MA
SUPPORT, Chute Rod 83 MT1733737ASM
YOKE & TUBE ASSEMBLY, Chute 84 MT1733611SM
PIN, Hair Chute Gear 85 MT1501293MA
PIN, Clevis 86 MT578309MA
ROD & YOKE ASSEMBLY, Chute 87 MT1733182SM
SCREW, Hex Washer Head Taptite 5/16-18 x 1 88 MT1960373SM
SPACER, Block 89 MT1733379ASM
NUT, Hex Flange 5/16-18 Two-Way Lock 90 MT1935048SM
CAPSCREW, Hex Head 5/16-18 x 1 G5 91 MT1921333SM
CAPSCREW, Hex Head 5/16-18 x 1-1/4 G5 92 MT1921977SM
NUT, Hex KEPS 5/16-18 Conical Washer 93 MT1960684SM
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
7
TP 400-4677-02-LW-T
Engine and Frame Group - Steerable
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987788
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
8
TP 400-4677-02-LW-T
Engine and Frame Group - Steerable
PART NO. DESCRIPTIONREF NO
ENGINE, 10.5HP B&S Powerbuilt * (Model # 20E1140110E1) 1 ----ENGINE, 11.5HP B&S Intek * (Model # 21M2140114E1) 1 ----ENGINE, 13HP B&S Intek * (Model # 21A4140119E1) 1 ----CORD, Electric Start 2 MT1724064SM
GUARD, Muffler 3 MT1734698SM
SCREW, Hex Washer Head Taptite 4 MT1929477SM
CARRIAGE BOLT 5 MT002X97MA
NUT, Speed 6 MT028X76MA
NUT, Hex Flange, 5/16-18 Whiz Lock Small 7 MT2831277SM
PULLEY, Engine 8 MT1501109MA
WASHER, 3/8 9 MT1922755SM
LOCKWASHER, Spring 3/8 10 MT1916965SM
CAPSCREW, Hex Head, 3/8-24 x 1-1/4 G8 11 MT1960428SM
V-BELT, Drive 12 MT1733324SM
V-BELT, Auger 13 MT1733507SM
STOP, Belt 14 MT1733014SM
LOCKWASHER, Spring 5/16 15 MT1917356SM
CAPSCREW, Hex Head, 5/16-24 x 3/4 G5 16 MT1921515SM
IDLER BRACKET ASSEMBLY, Drive Belt 17 MT1501112YZMA
BUSHING, Idler Bracket 18 MT1501065MA
SPRING, Extension Idler 19 MT53704MA
IDLER, Plastic Ball Bearing 20 MT1502120MA
NUT, Hex Jam, 3/8-16 21 MT1917421SM
CARRIAGE BOLT, 3/8-16 x 1-1/4 22 MT585781MA
IDLER ASSEMBLY, Auger 23 MT1501628YZMA
SPACER, Auger Idler 24 MT1502041MA
WASHER, 1/2 25 MT1960027SM
BRACKET & HUB ASSEMBLY, Spring 26 MT1733451SM
PIN, Hair 27 MT711682MA
PIN, Clevis 28 MT1735135MA
PANEL, Bottom 29 MT1740906ASM
SCREW, Hex Washer Head Taptite, 1/4-20 x 5/8 30 MT1927429SM
SPRING, Extension Auger Idler 31 MT165X159MA
FRAME BOX 32 MT1501666E511MA
PLATE, Engine Mount 33 MT1733583FSM
SCREW, Hex Washer Head Taptite, 5/16-18 x 1/2 34 MT1924856SM
SCREW, Hex Washer Head Taptite, 5/16-18 x 3/4 35 MT1664847SM
COVER, Belt w/Toolbox Includes Decal 36 MT1732486SM
SCREW, Hex 39 MT26X306MA
Frontier Model ST1028S, ST1130S & ST1332S
Footnotes
Note* See your local Briggs & Stratton distributor for parts and service.
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
9
TP 400-4677-02-LW-T
Auger Drive Group - 26", 28", 30" & 32"
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987908
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
10
TP 400-4677-02-LW-T
Auger Drive Group - 26", 28", 30" & 32"
PART NO. DESCRIPTIONREF NO
PIN, Shear 1 MT1668344SM
COTTER PIN, 1/4" Self Locking 2 MT7023590SM
IMPELLER ASSEMBLY 3 MT1612187ASM
SCREW, Set Square Head Cup Point, 3/8-16 x 1/2 G8 4 MT1960474SM
PULLEY, 8.40 OD .752ID .720WD W/Hub 5 MT1732185SM
AUGER ASSEMBLY, 24" & 26" R.H. (Used On ST8526) 6 MT1734674ASM
AUGER ASSEMBLY, 28" & 30" R.H. (Used On ST9528, ST1028S & ST1130S) 6 MT1734676ASM
AUGER ASSEMBLY, 32" R.H. (Used On ST1332S) 6 MT1734678ASM
AUGER ASSEMBLY, 24" & 26" L.H. (Used On ST8526) 7 MT1734673ASM
AUGER ASSEMBLY, 28" & 30" L.H. (Used On ST9528, ST1028S & ST1130S) 7 MT1734675ASM
AUGER ASSEMBLY, 32" L.H. (Used On ST1332S) 7 MT1734677ASM
GEAR BOX ASSEMBLY 8 MT1732303SM
SCREW, Set Square Head Cup Point, 5/16-18 x 1/2 G8 9 MT1928721SM
KEY, Woodruff 10 MT2818312SM
CARRIAGE BOLT, 5/16-18 x 3/4 G5 11 MT1931333SM
NUT, Hex Flange Whiz Lock, 5/16-18 12 MT1931277SM
TUBE (Used On ST8526 & ST1130S) 15 MT1733406SM
Frontier Model ST1028S, ST1130S & ST1332S
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
11
TP 400-4677-02-LW-T
Auger Housing and Chute Group - 28", 30" & 32"
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987765
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
12
TP 400-4677-02-LW-T
Auger Housing and Chute Group - 28", 30" & 32"
S
PART NO. DESCRIPTIONREF NO
AUGER HOUSING ASSEMBLY, 28" Auger (Used on Model ST9528 & ST1028S) 1 MT1734565FSM
AUGER HOUSING ASSEMBLY, 30" Auger (Used on Model ST1130S) 1 MT1734742FSM
AUGER HOUSING ASSEMBLY, 32" Auger (Used on Model ST1332S) 1 MT1734566FSM
CHUTE & DEFLECTOR ASSEMBLY 2 MT1732744FSM
BLADE, Scraper, 28" (Used on Model ST9528 & ST1028S) 3 MT1709947ASM
BLADE, Scraper, 30" (Used on Model ST1130S) 3 MT1732385ASM
BLADE, Scraper, 32" (Used on Model ST1332S) 3 MT1709948ASM
CARRIAGE BOLT, 5/16-18 x 5/8 G5 4 MT1960699SM
NUT, Hex Flange Two-Way Lock, 5/16-18 5 MT1935048SM
SKID, Shoe Reversible 7 MT1727854ASM
CARRIAGE BOLT, 3/8-16 x 3/4 G5 8 MT1960711SM
NUT, Hex Flange ESNA, 3/8-16 9 MT1960687SM
BEARING, Retainer 12 MT1665982ASM
RETAINER, Nut, 5/16-18 13 MT1930659SM
SCREW, Hex Whiz Lock Flange, 5/16-18 x 3/4 14 MT1960738SM
BEARING, Greased 15 MT2108202SM
BUSHING, Auger Flange 17 MT1733103SM
18 MT1664847SM
SCREW, Hex Washer Head Taptite 5/16-18 x 3/4 (Used on Models ST1028S, ST1130
ST1332S)
SCREW, Hex Washer Head Taptite 5/16-18 x 1-1/4 19 MT1931202SM
STICK, Cleanout w/Brush 20 MT1733209SM
CLIP, Retainer 21 MT1501672MA
SCREW, Hex Washer Head Slot 22 MT2860604SM
NUT, Hex Lock 10-24 w/Nylon Insert 23 MT1933896SM
BLOCK, Universal Pivot 24 MT578063MA
SPRING, Extension 26 MT1733455SM
RETAINER, SPOUT 27 MT7011938SM
CAPSCREW, Hex Washer Head Taptite, #10C x 5/8 GR5 BZ 28 MT1960001SM
WASHER, Nylon, .388 x 1.12 x .030 29 MT2860210SM
CARRIAGE BOLT, 5/16-18 x 3/4 G5 30 MT1931333SM
NUT, Hex Flange ESNA, 5/16-18 31 MT1960686SM
NUT, Push for .312 DIA Stud Capped .625OD 33 MT1932718SM
DECAL, Hinge Upper 35 MT1734738SM
DECAL, Hinge Lower 38 MT1734739SM
CUTTER, Drift (Used on Models ST1028S, ST1130S & ST1332S) 39 MT1733102ASM
COVER, Bushing 40 MT1734932ASM
Frontier Model ST1028S, ST1130S & ST1332S
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
13
TP 400-4677-02-LW-T
Traction Drive Group - Steerable
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987250
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
14
TP 400-4677-02-LW-T
Traction Drive Group - Steerable
PART NO. DESCRIPTIONREF NO
CHAIN, Roller 1 MT579851MA
RETAINER & BUSHING ASSEMBLY 2 MT334163MA
WASHER 3 MT579858MA
SCREW, Hex Washer Head Taptite, 5/16-18 x 1/2 4 MT1924856SM
CHAIN, Roller 5 MT579868MA
RETAINER, Ring 7/16 6 MT11X30MA
SPRING, Extension 7 MT165X112MA
WASHER-, 1/2 8 MT1960027SM
AXLE, Swing Plate 9 MT1501092YZMA
HUB, Friction Wheel & Bearing 10 MT337029MA
WHEEL, Friction 11 MT1501435MA
CAPSCREW, Hex Head 1/4-20 x 5/8 G5 12 MT1921959SM
NUT, Hex KEPS 1/4-20 13 MT1928372SM
RING, Retaining Extension 14 MT579859MA
NUT, 3/8-24 Flange Lock 15 MT15X114MA
PLATE, Swinging 16 MT1501057YZMA
SPACER, Friction Pulley 17 MT1501158MA
FRICTION PULLEY ASSEMBLY 18 MT1501115MA
SPEED SELECT ASSEMBLY 19 MT1501110YZMA
BEARING, Flange 20 MT579944MA
ASSEMBLY, SPRING LINK STEERABLE 21 MT1502084YZMA
SHAFT & SPROCKET ASSEMBLY, Hex 23 MT1501630MA
SPROCKET, Set 24 MT1501652MA
BEARING, Ball 25 MT53263MA
RETAINER, Bearing 26 MT50648MA
AXLE, Shaft, Left 27 MT1502106MA
PIN, Axle 28 MT1502024MA
AXLE, Shaft with Bushing, Right 29 MT1732566SM
SPROCKET, Steer 30 MT1501623MA
CLUTCH, Auto Lock Steer 31 MT1501619MA
SCREW 32 MT352X3MA
BEARING, Axle D-Hole 33 MT1501114MA
BRACKET, Axle Support Steering 34 MT1501618YZMA
SCREW, Hex Washer Head Taptite, 5/16-18 x 3/4 35 MT1664847SM
COLLAR, Locking 36 MT1501620MA
WASHER, 3/4 37 MT1960061SM
BRACKET, Support Steering Box 38 MT1502030YZMA
NUT, Hex Flange 3/8-16 Whiz Lock Large 40 MT1928352SM
CAPSCREW, Hex Head 3/8-16 x 3/4 G5 42 MT1921965SM
NUT, Hex Lock E S NA Li gh t 1/4-20 46 MT1920397SM
CAPSCREW, Hex Head, 1/4-20 x 1-1/2 G5 47 MT1922837SM
SPOOL CABLE, Auger Control 48 MT579860MA
BRACKET, Cable Spool 49 MT1501059YZMA
Frontier Model ST1028S, ST1130S & ST1332S
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
15
TP 400-4677-02-LW-T
Traction Drive Group - Steerable
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987250
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
16
TP 400-4677-02-LW-T
Traction Drive Group - Steerable
PART NO. DESCRIPTIONREF NO
CABLE, Front Drive Lower All 50 MT1501122MA
CAPSCREW, Hex Washer Head Taptite, 1/4 - 20 x 3/8 51 MT1929000SM
Frontier Model ST1028S, ST1130S & ST1332S
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
17
TP 400-4677-02-LW-T
Wheels and Tires Group
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987259
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
18
TP 400-4677-02-LW-T
Wheels and Tires Group
PART NO. DESCRIPTIONREF NO
Frontier Model ST1028S, ST1130S & ST1332S
PIN, Klik 1 MT1679697SM
WHEEL & TIRE ASSEMBLY, L.H. SNOW XTRAC 16 x 4.8-8 2 MT1732996SM
WHEEL & TIRE ASSEMBLY, L.H. 2 MT1732998SM
WHEEL & TIRE ASSEMBLY, R.H. SNOW XTRAC 16 x 4.8-8 3 MT1732997SM
WHEEL & TIRE ASSEMBLY, R.H. 3 MT1732999SM
RETAINING RING, Extension Self Lock 6 MT1657528SM
WASHER, FLAT .765 x 1.12 x .06 YZ 8 MT712120MA
Footnotes
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
19
TP 400-4677-02-LW-T
Decal Group
Frontier Model ST1028S, ST1130S & ST1332S
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
2987817
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
20
TP 400-4677-02-LW-T
Decal Group
PART NO. DESCRIPTIONREF NO
Frontier Model ST1028S, ST1130S & ST1332S
DECAL, Dashboard 1 MT1732570SM
PLATE, Frontier 2 MT1501548MA
DECAL, Shift 3 MT1733772SM
DECAL, Danger Avoid Injury from Auger 4 MT1716532SM
DECAL, Danger Amputation Hazard 5 MT1733057SM
DECAL, OPEI Certified ANSI * 6 ----DECAL, ST1028S 7 MT1733240SM
DECAL, ST1130S 7 MT1733241SM
DECAL, ST1332S 7 MT1733242SM
DECAL, Over Adjustment of Friction Disc 8 MT7859MA
DECAL, Lubrication 9 MT1733526SM
STICKER, Serial with Bar Code (Not a servicable part) 10 ----DECAL, Thrown Objects 12 MT48X5578MA
MANUAL, Operators (Not Illustrated) 13 MT1734891SM
DECAL, V-Belt Adjustment 15 MT7390MA
Footnotes
Note* Not a serviceable part.
The above parts group applies to the following Mfg. Nos.:
1695321 - ST1028S
1695322 - ST1130S
1695323 - ST1332S
© Copyright by Briggs and Stratton Corporation
2007
21
TP 400-4677-02-LW-T
Hex Head Capscrew
Hex Nut
Lockwasher
Washer
Carriage Bolt
Hardware Identification & Torque Specifications
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
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
Common Hardware Types
Torque Specification Chart
FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)
Hardware
Grade
Size Of
Standard Hardware Sizing
When a washer or nut is identified as 1/2”, this is the
Nominal size
second number is present it represent the
When bolt or capscrew is identified as 1/2 - 16 x 2”, this
means the
second number represents the
example, and the final number is the
bolt or screw (in this example 2 inches long).
, meaning the
Nominal size
inside diameter
, or
body diameter
threads per inch
is 1/2 inch; if a
threads per inch
is 1/2 inch; the
body length
(16 in this
of the
The guides and ruler furnished below are designed to
help you select the appropriate hardware and tools.
Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm.
8-32
8-36
10-24
10-32
1/4-20
1/4-28
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
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
b. for flange whizlock nuts and screws - use 135% of
3. Unless otherwise noted on assembly drawings, all torque
values must meet this specification.
SAE Grade 2 SAE Grade 5 SAE Grade 8
in/lbs in/lbs
19
2.1
20
2.3
27
3.1
31
3.5
66
7.6 8 10.9 12 16.3
76
8.6 10 13.6 14 19.0
torques.
grade 5 torques.
30
31
43
49
NOTES
in/lbs
3.4
3.5
4.9
5.5
41
43
60
68
4.6
4.9
6.8
7.7
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