Simplicity 48" Mower Deck Manual


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Simplicity 48

Mfg. No: 1693418

48" Mower Deck

Copyright © Briggs & Stratton. All Rights reserved

07-Apr-2022

48" Mower - Cover, Drive & Bail Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

48" Mower Deck - Deflector, Stone Guard & Arm Assembly Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

48" Mower Deck - Height Adjusting & Roller Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

48" Mower Deck - Housing & Arbor Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

Decals - Safety & Common. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

Torque Specification Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

3 07-Apr-2022

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 1693418 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

4 07-Apr-2022

29

30

31

32

25

26

27

28

33

34

35

36

11

12

13

14

7

8

9

10

5

6

4

4

2

3

1

2

19

20

21

22

15

16

17

18

23

24

QTY DESCRIPTION

1929000SM 14

1679957ASM 1

1679957ASM 1

1709067SM 1

1676067ASM 1

1676067ASM 1

2154304SM

1919262SM

2

2

1704277SM

1921176SM

1725601SM

1924361SM

1916966SM

1916951SM

2172473ASM 1

1657044SM 1

2

2

2

2

1

2

1960268SM

1704276SM

1700230SM

1700229SM

1655777SM

1928352SM

1679916ASM 3

1679711SM 3

3

1

3

3

1

1

CAPSCREW, Hex Hd, Taptite, 1/4-20 x 3/8

COVER, R.H. (Orange)

COVER, R.H. (Black)

DECAL, Belt Installation, Adjustment

COVER. L.H. (Orange)

COVER. L.H. (Black)

YOKE

NUT, Hex, Jam, 1/2-20

DECAL, Danger, Deflector in place

CAPSCREW, Hex Hd, 1/2-13 x 1-1/4

SPACER

WASHER, Plain, 7/16

LOCKWASHER, Spring, 1/2

NUT, Hex, Full, 1/2-13

BAIL ASSEMBLY

BELT, "V", Arbor Drive

CARRIAGE BOLT, 3/8-16 x 1-1/4

DECAL, Danger, Rotating Blade

WASHER, Shim

SHIELD, Grass or ADAPTOR, Blade

NUT, Hex Flange, Whiz Lock, 3/8-16

BLADE, 48" Mower

WASHER, Spline

1656916SM 3 WASHER, Spring

2823471SM Not F

1917421SM

3

1

CAPSCREW, Hex Hd., 7/16-14 x 1-1/4

-Torque to 50-70 ft. lbs. (3 places)

1916965SM

1924940SM

1

5

NUT, Hex, Jam, 3/8-16

LOCKWASHER, 3/8

WASHER, Plain, 13/32

2812808SM 1 FITTING, Lube, 1/4 - 28

2171815SM

1704926SM

1674669SM

1676148SM

-----

1656936SM

1718561SM

1

1

1

1

2

1

1

EYE BOLT

PULLEY ASSEMBLY, Idler

SPACER, .39 X 5/8 X 1.15

BUSHING

LEVER ASSEMBLY, Idler (Order Ref. No. 35)

SPRING

LEVER ASSEMBLY, Idler

-(Incl. Ref. Nos. 28 & 32)

DECAL, Cutting Width, 48" 1722793SM 1

Note:* Not a servicable part.

Copyright © Briggs & Stratton. All Rights reserved

5 07-Apr-2022

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 1693418 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

6 07-Apr-2022

6

7

5

5

3

4

1

2

8

12

13

14

15

16

9

10

11

17

18

19

1713515SM

1916950SM

1916965SM

1924356SM

1651184SM

1729543SM

-----

1960268SM

2174127SM

2156306SM

2176012SM

2172468A

2105051

1921176SM

1916966SM

1913744SM

1677261ASM 1

2

2

2

2

2

2

1

1918452SM

1960116SM

1931350SM

1

4

1

1

1

2

2

2

QTY DESCRIPTION

4

3

1

4

BELT, "V", PTO to Mower

NUT, Hex, Full, 3/8-16

LOCKWASHER, 3/8

WASHER

-Special

DEFLECTOR - (Orange)

DEFLECTOR - (Black)

DECAL, OPEI

CARRIAGE BOLT, 3/8-16 x 1-1/4

-(All Except 1693418 & 1693419)

GUARD ASSEMBLY, Stone

-(All Except 1693418 & 1693419)

PIN

PIN, Clip

ROCKER ARM ASSEMBLY

SPACER

CAPSCREW, Hex Hd, 1/2-13 x 1-1/4

LOCKWASHER, Spring, 1/2

NUT, Hex Jam, 1/2-13

STONE GUARD ASSEMBLY

-(1693418 & 1693419 Only) or PIN, Cotter, 1/8 x 1

PIN, Yoke

CARRIAGE BOLT, 3/8-16 x 1

-(1693418 & 1693419 Only)

Not F

Reproduction

Note:* Not a servicable part.

Copyright © Briggs & Stratton. All Rights reserved

7 07-Apr-2022

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 1693418 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

8 07-Apr-2022

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

17

18

19

20

21

22

2172046ASM 1

1960020SM 6

1918458SM

1668513SM

4

9

2172015ASM 1

2172047SM 1

1668541ASM 1

1931350SM 4

1650394SM

1651820SM

2108241SM 2

1657891ASM 1

2

2

2108360SM

1917421SM

1916950SM

1916965SM

8

4

2

2

1924940SM

1918447SM

1921210SM

1930645SM

1920415SM

2108512SM

2

2

8

2

2

2

QTY DESCRIPTION

BRACKET, Roller, L.H.

WASHER, Plain, 21/32

PIN, Cotter, 3/16 x 1

ROLLER, .652 ID, 2.50 OD, 4.10 LG

ROCKER ARM ASSEMBLY

BRACKET, Roller, R.H.

SHAFT ASSEMBLY, Roller

CARRIAGE BOLT, 3/8-16 x 1

HANDLE, Adjusting

GRIP

SOCKET ASSEMBLY

BAR, Roller

SPRING

NUT, Hex, Jam, 3/8-16

NUT, Hex, Full, 3/8-16

LOCKWASHER, 3/8

WASHER, 3/8

PIN, Cotter, 3/32 x 3/4

CAPSCREW, Hex Hd, 3/8-16 x 1

LOCKNUT, Hex, Full, 3/8-16

Not F

Copyright © Briggs & Stratton. All Rights reserved

9 07-Apr-2022

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 1693418 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

10 07-Apr-2022

37

38

39

40

27

27

28

29

23

24

25

26

19

20

21

22

15

16

17

18

34

35

35

35

30

31

32

33

35

36

1

7

8

5

6

2

3

4

9

10

11

12

13

14

QTY DESCRIPTION

2823471SM

1918199SM 3

1933263SM 3

1679157ASM 1

1657969SM 3

1655729ASM 3

2108202SM

1679194SM

6

1

1703273ASM 3

1916964SM 4

1916622SM 4

1679161ASM 2

1676277SM 2

1664847SM

3

18

CAPSCREW, Hex Hd., 7/16-14 x 1-1/4

-Torque to 50 to 70 ft. lbs. (3 places)

LOCKWASHER, 7/16

WASHER, 29/64 x 1-1/4 x 1/4

PULLEY ASSEMBLY

SHIELD, Bearing Upper, Arbor

HOUSING, Arbor, Top

BEARING

SHAFT.Arbor, Center

HOUSING, Arbor Bottom

LOCKWASHER, 1/4

NUT, Hex, Full, 1/4-20

PULLEY ASSEMBLY, Deck Drive

SHAFT, Arbor, Side

-(Incl. Ref. No. 15, Qty. 1)

CAPSCREW, Hex Washer Hd, Taptite, 5/16-18 x 3/4

-Torque to 15-19 ft. lbs.(18 places)

RING, Self-Locking

CARRIAGE BOLT, 5/16-18 x 3/4

1657528SM

1931333SM

2108454ASM 1

1668513SM 2

3

4

1960020SM

1918458SM

2108224ASM 1

1916950SM 6

2

2

1916965SM

1931350SM Not F

6

2

1917356SM

4

4

1674774ASM 1

1675587SM 1

1921959SM

1925592SM

2

2

2108186SM

1921319SM

1960268SM

2108366SM

4

1

2

2

2108219SM

1685281SM

1685282SM

1687125SM

1687126SM

1679195SM

1

1

2

1

1

1

1676278A

1924940SM

1707335SM

1704314SM

2

4

3

3

BRACKET & SHAFT ASSEMBLY

ROLLER, .652 ID, 2.50 OD, 4.10 LG

WASHER, Plain, 21/32 or Reproduction

BRACKET, Roller, L.H.

NUT, Hex, Full, 3/8-16

LOCKWASHER 3/8

CARRIAGE BOLT, 3/8-16 x 1

NUT, Hex, Full, 5/16-18

LOCKWASHER, 5/16

BAFFLE, 48" Mower

BAFFLE, 42" Mower

CAPSCREW, Hex Hd, 1/4-20 x 5/8

CAPSCREW, Thread Forming, 1/4-20 x 3/4

CLIP,. Baffle

WASHER, Plain, 9/32

CARRIAGE BOLT, 3/8-16 x 1-1/4

BAR, Reinforcement

BRACKET ASSEMBLY, Front

HOUSING, 42 Mower (Orange)

HOUSING, 48 Mower (Orange)

HOUSING, 42 Mower (Black)

HOUSING, 48 Mower (Black)

SHAFT & BEARING ASSEMBLY, Center

-(Incl. Ref. Nos. 7 & 8).

SHAFT & BEARING ASSEMBLY, Side

-(Incl. Ref. Nos. 7 & 13)

WASHER, 13/32 I.D.

GASKET, Foam

FITTING, Grease

11

Copyright © Briggs & Stratton. All Rights reserved

07-Apr-2022

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 1693418 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

12 07-Apr-2022

5

6

7

8

9

10

3

4

4

4

2

3

1

2

1708927

1716108

1716537SM

1668328SM

1715549SM

1720454SM

1717449

1717729

1713543SM

1708810

1716534SM

1716535SM

1667175

1722793SM

1

1

1

1

1

1

1

1

1

QTY DESCRIPTION

1

1

1

1

1

DECAL, USA

DECAL, Console

-(All Power Steering Models)

DECAL, Console

-(All Manual Steering Models)

DECAL, Dashboard

-(All Manual Steering Models)

DECAL, Dashboard

-(All Power Steering Models)

DECAL, Touch-Up Paint (Orange)

DECAL, Touch-Up Paint (Red)

DECAL, Touch-Up Paint

-(75th Anniversary)

DECAL, Belts & Blades

DECAL, Grill

-(All Models Except 1692889 & 1693148)

DECAL, Warning

DECAL, Caution

DECAL, Belt Adjustment

DECAL, Cutting Width or Reproduction

Not F

Copyright © Briggs & Stratton. All Rights reserved

13 07-Apr-2022

Hardware Identification & Torque Specifications

Torque Specification Chart

FOR STANDARD METRIC MACHINE HARDWARE (Tolerance ± 20%)

Torque Specification Chart

FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)

0

Property

Class

5.6

8.8

10.9

12.9

Class 5.6

Class 8.8

Class 10.9

Class 12.9

Size Of

Hardware in/lbs ft/lbs Nm.

in/lbs ft/lbs Nm.

in/lbs ft/lbs Nm.

in/lbs ft/lbs Nm.

M12

M14

M16

M18

M20

M22

M24

M27

M3

M4

M5

M6

M7

M8

M10

M30

M33

M36

M39

5.88

.56

13.44

1.28

26.4

2.50

44.64

4.3

5.2

7.1

7.7

10.5

15

26

21

36

42 58

64 88

89 121

126 171

169 230

217 295

320 435

435 590

590 800

759 1030

988 1340

13.44

30.72

60.96

7.3

12.1

17.7

35

61

101

147

202

290

390

497

733

995

1349

1740

2249

1.28

2.90

5.75

9.9

16.5

24

48

83

132

200

275

390

530

375

995

1350

1830

2360

3050

1032

1401

1902

2441

3163

287

405

559

708

19.2

43.44

5.97

10.3

16.9

25

50

86.2

136

210

550

745

960

1400

117

185

285

390

1.80

4.10

8.10

14

23

34

67

1900

2580

3310

4290

22.92

2.15

52.56

4.95

7.15

9.7

12.1

16.5

19.9

29

59

27

40

81

103 140

162 220

250 340

346 470

486 660

656 890

840 1140

1239 1680

1681 2280

2278 3090

2935 3980

3798 5150

The guides and ruler furnished below are designed to help you select the appropriate hardware.

10 20 30 40 50 60 70 80 90 100

Nut, M8

Body

Diameter

Body Length

Screw, M8- 1.25 x 25

0

Thread

Diameter (mm)

Inside

Diameter (in)

Threads per inch

1/4

Nut, 1/2-16

1/2

3/4

1

1/4

Thread

Diameter (mm)

Body

Diameter

1/2

3/4

Distance between threads (mm)

Threads per inch

Body

Length (mm)

Body

Length (in)

2

Screw, 1/2- 16 x 2

1/4

1/2

3/4

3

1/4

1/2

3/4

4

Hardware

Grade

No

Marks

SAE Grade 2

Size Of in/lbs

Hardware ft/lbs Nm.

SAE Grade 5 in/lbs ft/lbs Nm.

SAE Grade 8 in/lbs ft/lbs Nm.

8-32

8-36

10-24

10-32

1/4-20

1/4-28

5/16-18

5/16-24

3/8-16

3/8-24

7/16-14

7/16-20

1/2-13

1/2-20

9/16-12

9/16-18

5/8-11

5/8-18

3/4-10

3/4-16

7/8-9

7/8-14

1-8

1-12

19

20

27

31

66

76

140

7.6

8.6

11 15.0

12

20

23

30

35

50

55

65

75

90

100

160 217.6

180 244.8

155

220

240

2.1

2.3

3.1

3.5

16.3

27.2

31.3

40.8

47.6

68.0

74.8

88.4

102.0

122.4

136

190.4

210.8

299.2

326.4

30

31

43

49

8

19

30

35

50

55

75

90

110

3.4

3.5

4.9

5.5

10.9

10 13.6

17 23.1

25.8

40.8

47.6

68.0

74.8

102.0

122.4

149.6

41

43

60

68

12

14

25

29

45

50

70

34.0

61.2

68.0

95.2

80 108.8

110 149.6

120 163.2

150 204.0

4.6

4.9

6.8

7.7

16.3

19.0

34.0

120 163.2

150 204.0

180 244.8

260 353.6

300 408.0

170

220

240

231.2

299.2

326.4

386 525.0

420 571.2

400 544.0

440 598.4

600 816.0

660 897.6

580 788.8

900 1,244.0

640 870.4

1,000 1,360.0

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.

Common Hardware Types

Hex Head Capscrew

Washer

Standard Hardware Sizing

When a washer or nut is identified as 1/2” (M8), this is the Nominal size , meaning the inside diameter is 1/2 inch

(8mm metric thread diameter); if a second number is present it represents the threads per inch (distance between threads).

When bolt or capscrew is identified as 1/2 - 16 x 2” (M8 - 1.25 x 50), this means the Nominal size , or body diameter is 1/2 inch (8mm metric thread diameter), the second number,16, represents the threads per inch, (distance between threads). The final number is the body length of the bolt or screw, 2 inches (50mm).

Carriage Bolt

Wrench & Fastener Size Guide

Lockwasher

Hex Nut

1/4” Bolt or Nut

Wrench—7/16”

M6 Bolt or Nut

Wrench—10mm

5/16” Bolt or Nut

Wrench—1/2”

M8 Bolt or Nut

Wrench—13mm

3/8” Bolt or Nut

Wrench—9/16”

M10 Bolt or Nut

Wrench—17mm

7/16” Bolt or Nut

Wrench (Bolt)—5/8”

Wrench (Nut)—11/16”

1/2” Bolt or Nut

Wrench—3/4”

M12 Bolt or Nut

Wrench—19mm

M14 Bolt or Nut

Wrench—22 mm

Copyright © Briggs & Stratton. All Rights reserved

07-Apr-2022

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