Simplicity ZF7301M, 73" Mower Deck Series 0 Manual

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Simplicity ZF7301M, 73

Mfg. No: 7084441

ZF7301M, 73" Mower Deck Series 0

Copyright © Briggs & Stratton. All Rights reserved

23-Jul-2021

73" OFZ Mower Deck Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deck Frame Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fixed Idler Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

Front Caster Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

4

6

Rear Caster Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

Roller Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

Spindle Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

Spring-Loaded Idler Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

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

20 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

3 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

4 23-Jul-2021

15

16

17

18

11

12

13

14

19

20

21

22

7

8

5

6

3

4

1

2

9

10

33

34

35

36

29

30

31

32

37

38

23

24

25

26

27

28

--

--

--

QTY DESCRIPTION

7041901

7028864

7046644

7091049

5025096

7047139

7027950

7029277

7091313

7054465

7029264

7036456

7036457

5025013X8

7091325

5025017X40

-----

-----

-----

7046624

7054695

7057822

7036458

7036459

Not F

7036461

7091325 3

7073142 3

7027344

7027327

5025017X12

7091640

5025096

7041896

7046623

7091640

-----

7046371

-----

7013010

7022522

7073647

2

2

3

6

2

6

6

2

2

2

2

4

4

2

WELDMENT, 73" OFZ MOWER DECK

STANDOFF, 3 1/2"

GUARD, Belt

WINGNUT, 3/8-16

NUT, 3/8-16 HEX NYLON LOCK

DEFLECTOR, Chute, 73" Deck (Weldment)

SPRING, Chute

HINGE PIN, Chute

PIN, 3/32 x 1" Cotter

ASSEMBLY, Gage Wheel

-(Includes items 11-16)

WHEEL, Gage

SPACER, Gage Wheel

FORK, Gage Wheel

BOLT, 3/8-16 X 1" GD5 CZ

NUT, 1/2-13 Nyloc

BOLT, 1/2-13 X 5 GD5 YZ

GROUP, 9" Caster (Rear)

GROUP, Spindle

GROUP, Spring-Loaded Idler

GEARBOX, Right Angle or Reproduction

ASSEMBLY, Center Deck Roller

-(Includes items 23-33)

MOUNT, Roller (R.H.)

MOUNT, Roller (L.H.)

ROLLER, Tube

ROD, Threaded Roller

NUT, 1/2-13 Nyloc

ROLLER, Low Density Poly

-Was 79226

WASHER, 5/8" SAE Flat

WELDMENT, Pivot Pin

BOLT, 1/2-13 X 1-1/2 GD5 CZ

BOLT, 3/8-16 x 1" Carriage, Grade 5

NUT, 3/8-16 HEX NYLON LOCK

BELT, 164" HB Section

BRACKET, Rear Deck Hanger

BOLT, 3/8-16 x 1" Carriage, Grade 5 (YZ)

GROUP, Fixed Idler

DECAL, 73 Deck

GROUP, ZF73 Decal

-(Not Shown)

DECAL, Warning

-(Not Shown)

DECAL, Warning

-(Not Shown)

DECAL, Caution

-Was 24156 (Not Shown)

5

Copyright © Briggs & Stratton. All Rights reserved

23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

6 23-Jul-2021

31

32

33

34

27

28

29

30

35

36

23

24

25

26

19

20

21

22

15

16

17

18

11

12

13

14

7

8

9

10

4

5

6

1

2

3

37

QTY DESCRIPTION

7047171

7091523

5025011X20

7091587

7043803

7046595

7047130

7046602

7012802

7091516

7046508

7046507

7043803

7046598

7046599

7046596

7046597

7035496

7046856

7046857

7046603

5025057

5025096

7090863

8

4

2

2

4

22

2

2

16

4

PLATE, Diamond Tread Foot

SCREW, 5/16-18 x 5/8" Hex Self-Tapping

BOLT, 5/16-18 X 2-1/2" GD5 YZ

-Was 90219

WASHER, .531 x 1.062 x .121 SAE Flat

BRACKET, Deck Lift Hanger

ARM, Front Lift (Weldment)

FRAME, Deck (Weldment)

BAR, 7" Lift

PIN, 1/2 x 1 1/8" Clevis (YZ)

PIN, 5/32 x 1" Cotter

ANGLE, Front Deck Mounting (L.H.)

ANGLE, Front Deck Mounting (R.H.)

BRACKET, Deck Lift, Rear

ROD, Timing, 1/2" Threaded

SWIVEL, .50 Thru Hole

ARM, Rear Bellcrank (L.H.) (Weldment)

ARM, Rear Bellcrank (R.H.) (Weldment)

BEARING, .75 I.D.

7046594 Not F 2

7090735

2

3

7046605 2

2

4

5025056

7029258

7036448

7036454

7046593

7091218

5025013X20

7090122

2

2

J-BOLT, 1/2" Dia. x 8 1/2" Long (Front)

J-BOLT, 1/2" Dia. x 7" Long (Rear) or Reproduction

NUT, 5/16-18 HEX NYLON LOCK

NUT, 3/8-16 HEX NYLON LOCK

WASHER, 13/16 x 1 15/32" (HS)

CHANNEL, Deck Stabilizer

J-BOLT, Deck Attachment

BOLT, 1/2-13 x 4" Hex (HO)

SLEEVE, Stabilizer

NUT, 1/2-13 HEX NYLON LOCK

BUSHING, Suspension

LINEAR ACTUATOR, 1000 Lbs., 4" Stroke

INDICATOR, Height Of Cut

BRACKET, Actuator Anchor

SCREW, 1/2 UNC x 2.5 Hex Head Cap

BOLT, 3/8-16 X 2-1/2" GD5 CZ

WASHER, 3/8" Flat

-Was 91514

WIRE HARNESS, Deck Lift 7047166

4

2

2

Copyright © Briggs & Stratton. All Rights reserved

7 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

8 23-Jul-2021

3

4

1

2

5

6

7

7054355

7035789

7036449

5025096

5025401

5025013X16

7091640

QTY DESCRIPTION

4

3

ASSEMBLY, Fixed Idler Group

PULLEY, Idler, 5 1/2" O.D.

STAND, Fixed Idler

NUT, 3/8-16 HEX NYLON LOCK

WASHER, 3/8" USS

-Was 91300

BOLT, 3/8-16 X 2, GD5, CZ

BOLT, 3/8-616 x 1" Round Head Square Neck

Not F or Reproduction

Copyright © Briggs & Stratton. All Rights reserved

9 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

10 23-Jul-2021

1

9

10

11

12

13

14

7

8

5

6

2

3

4

7057774

7012709

7013864

7023556

7023747

7029141

7035359

7046620

7047138

7053980

7090839

7091772

5025017X24

5025056

2

2

QTY DESCRIPTION

ASSEMBLY, 11" Front Caster

-(Includes items 2 thru 14)

RING, 1" External Retaining

LUBE FITTING, Straight (press-fit for .187 dia. Hole)

BUSHING, Caster

BUSHING, 1" Machine

BEARING, Flanged Ball

TUBE, 5/8" O.D. x 18 Gage Wall x 3.545 Long

YOKE, Caster (Weldment)

ARM, Telescoping Caster (Weldment)

ASSEMBLY, Wheel

NUT, 7/16-14 Hex Head Cap

SCREW, 7/16-14 x 6" Hex Head Cap

BOLT, 1/2-13 X 3" GD5 CZ

NUT, 1/2-13 HEX NYLON LOCK

Not F or Reproduction

Copyright © Briggs & Stratton. All Rights reserved

11 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

12 23-Jul-2021

13

14

15

16

9

10

11

12

7

8

5

6

1

2

3

4

7057738

7017711

7019152

7028641

7022151

7023556

7023747

7058167

7046515

7046523

7076998

5025096

5025013X8

5025017X44

7091640

5025056

6

2

QTY DESCRIPTION

6

2

4

ASSEMBLY, Rear Caster, 73" OFZ Deck

-(Includes items 2 thru 16)

PIN, 7/16" Lynch (HD)

SPACER, Caster

SPACER, 1" x 1 3/8 x .30" (PM)

-Was 21960

SPACER, Axle Sleeve

BUSHING, Caster

BUSHING, 1" Machine

ASSEMBLY, Wheel/Tire, 9 x 3.50 - 4

-Was 29869

SUPPORT, Caster (Weldment)

YOKE, Caster (Weldment)

FITTING, Lube, 1/4-28 Straight

NUT, 3/8-16 HEX NYLON LOCK

BOLT, 3/8-16 X 1" GD5 CZ

BOLT, 1/2-13 X 5-1/2" GD5 YZ

BOLT, 3/8-16 x 1" Carriage

NUT, 1/2-13 HEX NYLON LOCK or Reproduction

Not F

Copyright © Briggs & Stratton. All Rights reserved

13 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

14 23-Jul-2021

1

2

5

6

3

4

12

13

14

15

?7

8

9

10

11

7054695

7028641

7023747

7044646

7044752

7036578

7054702

7079868

7079882

5025096

5025401

5025013X8

7091541

7091553

5025013X48

2

3

QTY DESCRIPTION

2

2

2

ASSEMBLY, Roller

-(Includes items 2 thru 15)

SPACER, 1" x 1 3/8 x .30" (PM)

-Was 21960

BUSHING, 1" Machine

CASTER, Gage Wheel (Weldment)

SPACER, 3/8 x .75"

CAP, Caster Shaft

-Was 44839

ASSEMBLY, Gage Wheel Caster (Weldment)

ROLLER, 3 3/4 x 4 13/16" Nylon

TUBE, Axle

NUT, 3/8-16 HEX NYLON LOCK

WASHER, 3/8" USS

-Was 91300

BOLT, 3/8-16 X 1" GD5 CZ

SCREW, 5/16-18 x 3/4" Hex Washer Head, Self-Tapping

SCREW, 3/8-16 x 1 3/4" Hex Head Cap

BOLT, 3/8-16 X 6" GD5 CZ or Reproduction

Not F

Copyright © Briggs & Stratton. All Rights reserved

15 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

16 23-Jul-2021

1

5

6

7

2

3

4

8

9

10

11

12

13

14

15

16

7063237

7029270

7029249

7029274

7029422

7029302

7058237

5025096

7076998

7029384

7029254

7059311

7029271

7046625

7016440

7063234

Not F

2

6

QTY DESCRIPTION

6

4

NUT, 5/8-18 Hex Flange Lock, Grade 5

-Was 91736

WASHER, Spindle

PULLEY, 5 3/4" O.D.

SNAP-RING, Spindle Shaft

BEARING, Sealed

BOLT, 3/8-16 x 1 1/4" Rib Necked

HOUSING, Cutter

-Was 29252

NUT, 3/8-16 HEX NYLON LOCK

LUBE FITTING, 1/4-28 Thread Forming

-Was 29275

VENT, Spindle

SPACER, Bearing

SHAFT, Spindle

-Was 29253

SPACER, Blade

BLADE, 25 Inch

WASHER, Beveled

BOLT, 5/8-18 x 7 1/2" Hex Head Cap, Grade 5

-Was 29256 (Now 63234 + 63237) or Reproduction

Copyright © Briggs & Stratton. All Rights reserved

17 23-Jul-2021

Note: Unless noted otherwise, use the standard torque specifications Mfg. No: 7084441 or

Not F

Reproduction

Copyright © Briggs & Stratton. All Rights reserved

18 23-Jul-2021

1

2

15

16

17

18

19

11

12

13

14

7

8

9

10

5

6

3

4

7054356

7054248

7042619

7023556

7076998

7032031

7012709

7035789

5025013X16

5025401

5025096

7091553

7091331

7035858

7035667

7041295

5025128

7091640

7013847

2

2

6

2

3

QTY DESCRIPTION

ASSEMBLY, Spring-Loaded Idler Group

-(Includes items 1 thru 18)

ASSEMBLY, Idler Arm

-(Includes items 3 thru 14)

ARM, Idler (Weldment)

BUSHING

FITTING, 1/4-28 Straight

WASHER, 1.031 x 1.25 x .03" Flat

E-RING, 1"

PULLEY, 5 1/2" O.D.

BOLT, 3/8-16 X 2, GD5, CZ

WASHER, 3/8" USS

-Was 91300

NUT, 3/8-16 HEX NYLON LOCK

SCREW, 3/8-16 x 1 3/4" Hex Head Cap, Grade 5

WASHER, .406 x 1.5 x .120" (YZ)

SPACER, .50 I.D. x .75 O.D. x 83"

SPRING, Extension

PIVOT, Idler (Weldment)

NUT, 3/8-16 HEX SERRATED FLANGE

BOLT, 3/8-16 x 1" Carriage

RETAINER, 3/8" Bolt or Reproduction

Not F

Copyright © Briggs & Stratton. All Rights reserved

19 23-Jul-2021

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

23-Jul-2021

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