BigDog Mowers R Series Parts Manual (2024)

(1)

•••••

200 S. Ridge Road

•••

Hesston, Kansas

67062

BigDog

®

Mowers

R Series

Parts Manual

(2)

Inspect spark arrester daily; replace every 500 hours or as needed.

The Engine Owner’s Manual provides information regarding the U.S. Environmental Protection Agency

(EPA) and the California Emission Control Regulation of emission systems, maintenance and warranty.

Keep Engine Owner’s Manual with your unit. Should the Engine Owner’s Manual become damaged or

illegible, replace immediately. Replacements may be ordered per the information found in the Product

Information section of the owner’s manual.

Federal law and California State law prohibit the following acts or the causing thereof:

1. The removal or rendering inoperative by any person other than for purposes of maintenance,

repair, replacement, of any device or element of design incorporated into any equipment for

the purposes of emissions control prior to or after its sales or delivery to the ultimate

purchaser or while it is in use, or

2. The use of the equipment after such device or element of design has been removed or

WARNING

The engine exhaust from this product

contains chemicals known to the state

of California to cause cancer, birth

defects or other reproductive harm.

NOTICE OF REQUIREMENT OF SPARK ARRESTER MUFFLER

This equipment may create sparks that can start fires around dry vegetation. California Public Resources Code

Section 4442.6 provides that it is unlawful to use or operate an internal combustion engine on any forest-covered,

brush-covered, or grass-covered land unless the engine is equipped with a spark arrester maintained in effective

working order. A spark arrester is a device constructed of nonflammable materials specifically for the purpose of

removing and retaining carbon and other flammable particles over 0.0232 of an inch in size from the exhaust flow of

an internal combustion engine that uses hydrocarbon fuels or which is qualified and rated by the United States

Forest Service. Other states or federal areas may have similar laws. The Operator Should Contact Local Fire

Agencies For Laws or Regulations Relating to Fire Prevention Requirements. THIS EQUIPMENT DOES NOT HAVE

A SPARK ARRESTER AND YOU SHOULD CONTACT YOUR AUTHORIZED DEALER FOR THE PURCHASE OF

A SPARK ARRESTER.

(3)

112475_1113

c-1

Table of Contents

General Information

Service Literature . . . .1

Options Available From Your Dealer. . . .1

Using this manual . . . .1

Standard Torques . . . .2

Section 2

Frame . . . 2-2

Footrest . . . 2-4

Engine Guard . . . 2-6

Section 3

Hydraulic System . . . 3-2

Steering. . . 3-4

Steering Sub-Assembly. . . 3-6

Brake. . . 3-8

Section 4

Wheel & Tire . . . 4-2

Wheel & Tire Breakdown . . . 4-4

Section 5

Engine, 21 HP Briggs & Stratton. . . 5-2

Engine, 26 HP Briggs & Stratton. . . 5-4

Engine, Kohler. . . 5-6

Fuel System . . . 5-8

Section 6

Battery. . . 6-2

Instrument Panel—Briggs & Stratton . . . 6-4

Instrument Panel—Kohler . . . 6-6

Section 7

48" Service Deck . . . 7-2

54" Service Deck. . . 7-4

48" Deck Pulleys & Spindles . . . 7-6

54" Deck Pulleys & Spindles . . . 7-8

48" Deck . . . 7-10

54" Deck . . . 7-12

Deck Lift . . . 7-14

Deck Mounting Hardware . . . 7-16

Section 8

Seat. . . 8-2

ROPS—Foldable. . . 8-4

(4)(5)

112475_1113

1-1

General Information

This Manual covers BigDog

®

Series R models

929521, 929539, 929604 & 929612

.

Service Literature

PART NO.

602470 OPERATOR’S MANUAL

Options Available From Your Dealer

PART NO.

112953 MULCH KIT 48" DECK112611 MULCH KIT 54" DECK113934 MULCH KIT 60" DECK929679 2-BAG CATCHER R-748929687 2-BAG CATCHER R-754930834 2-BAG CATCHER R-760367656 HOUR METER KIT

333724 STEERING EXTENSION KIT112418 LIGHT KIT

112419 FLEX FORKS

112614 CONTAINMENT KIT R-748112615 CONTAINMENT KIT R-754113933 CONTAINMENT KIT R-760108743 SEAT SPRING KIT

Note:

When ordering parts, you must use the part number as shown for each part, not the index number. Always give

the model and serial number to your parts and service representative.

Note:

Items sold in bulk such as seals and hoses are sold by the foot.

Using this manual

This manual is part of a service package for the BigDog

®

mowers. Use of this manual in conjunction with other

Big-Dog

®

mower and component manuals will provide the information necessary to service and maintain BigDog

®

mowers.

This Parts Manual provides a complete parts listing for the unit. Use this manual when ordering parts. Illustrations used

were current at the time of printing, but subsequent production changes may cause your machine to vary slightly in

detail. Excel Industries, Inc. reserves the right to redesign and change the machine as deemed necessary, without

noti-fication. If a change has been made to your machine which is not reflected in this parts manual, see your BigDog

®

dealer for current information and parts.

The Service Manual is a service guide for use by Service Technicians. It provides the necessary information needed to

perform normal maintenance requirements on these units.

The Operator's Manual provides fundamental operational information and operational safety that is needed when

oper-ating the mower.

The component manuals are furnished by the various manufacturers to be used for the troubleshooting and servicing

of their products.

DESCRIPTION

(6)

Hardware Description Codes & Abbreviations

The following codes are used throughout this parts manual. Refer to this list when ordering parts.

ABBREVIATION

CB CARRIAGE BOLT MB MACHINE BUSHING

CE CLEVIS PIN MS MACHINE SCREW

CN CLIP NUT NT NUT

CP COTTER PIN SC SELF TAPPING CAP SCREW

CS CAP SCREW SH SOCKET HEAD

CW CUP WASHER SB SHOULDER BOLT

FDRW FENDER WASHER SS SET SCREW

FW FLAT WASHER OD OUTSIDE DIAMETER

HX HEX HEAD ID INSIDE DIAMETER

LW LOCK WASHER

Standard Torques

The following chart lists the standard torque values for the threaded fasteners found in this manual. Torque all cap

screws, nuts and set screws to these values unless a different torque is shown in the Notes section next to the fastener.

SIZE FT-LBS N-M SIZE FT-LBS N-M.250 8.2 11.1 M3 1 1.3.312 17 23 M4 2.2 3.375 30 40 M5 4.5 6.1.438 48 65 M6 7.7 10.4.500 73 99 M8 18.5 25.562 105 143 M10 37 50.625 145 200 M12 64 87.750 260 350 M14 80 108.5.875 420 565 M16 160 2151.00 625 850 M20 320 435M24 555 750

(7)

112475_1113

2-1

Section 2

Frame . . . 2-2

Footrest . . . 2-4

Engine Guard. . . 2-6

(8)

Frame

2

2

18

4

5

13

14

15

16

10

11

6

7

8

12

9

1

3

1

17

(9)

112475_1113

2-3

Frame

INDEX NO. PART NO. QTY.

1 550414 1 54" FRAME 550413 1 48" FRAME

2 808493 8 RIVET NUT, 3/8-16 THREAD3 601069 2 CN .312-18X.200 MAX THK4 808485 1 RIVET NUT, 5/16-18 THREAD5 600994 2 RIVET NUT, 3/8-16 THREAD6 602041 1 HOT DECAL

7 601967 1 ENGINE COMPART DECAL8 601099 1 TOW VALVE DECAL9 791848 1 FUEL INDICATOR- M DECAL10 N/A 1 SERIAL NO PLATE TURF PR11 785139 1 STEERING L.S. DECAL12 785220 1 STEERING R.S. DECAL13 727172 1 'MADE IN U.S.A.' DECAL14 785154 1 DECK HEIGHT DECAL15 602331 1 BIG DOG LOGO DECAL16 601981 1 SAFE OPERATION DECAL17 601987 1 STEP TREAD, FOOT LIFT18 600899 1 PUMP BELT WARNING DECAL

NOTES:

1. In the event the serial number tag becomes damaged or illegible, please

contact your dealer to order a replacement.

(10)

Footrest

1

2

3

4

4

6

5

7

8

(11)

112475_1113

2-5

Footrest

INDEX NO. PART NO. QTY.

1 550444 1 48" FLOOR PAN (WITH DECAL)550445 1 54" FLOOR PAN (WITH DECAL)550974 1 60" FLOOR PAN (WITH DECAL)2 011320 2 CB .375-16 X .75 STD ZN3 086660 2 NT .375-16 HX ZY NL4 767954 4 FW .406 X .812 X .060 SAE5 025395 2 CB .375-16 X 1.00 G5 ZNY6 054502 2 NT .375-16 HX G5 ZNY7 603844 1 R748 DECAL603725 1 R754 DECAL603726 1 R760 DECAL8 602323 3 STEP TREAD

NOTES:

DESCRIPTION

(12)

Engine Guard

1

2

3

5

5

6

4

7

10

8

8

9

6

INDEX NO. PART NO. QTY

1 190002 1 REAR ENGINE PLATE GUARD2 767954 6 FW .406 X .812 X .060 SAE3 052860 6 CS .375-16 X 1.25 HX G5 ZN4 781567 2 NT .500-13 HX G8 ZY NL5 344267 4 FW .510 X 2.15 X .187 SPL6 788166 2 PLASTIC WHEEL ASSEMBLY7 781708 2 CS .500-13 X 4.25 HX G58 767962 4 FW .531 X 1.063 X .090 SAE9 031997 2 PLASTIC WHEEL10 053199 2 NT .500-13 HX JAM ZNYC

NOTES:

DESCRIPTION

(13)

112475_1113

3-1

Section 3

Hydraulic System. . . 3-2

Steering . . . 3-4

Steering Sub-Assembly . . . 3-6

Brake . . . 3-8

(14)

Hydraulic System

1

1

1

2

3

3

3

3

4

30

5

6

6

9

10

8

7

12

13

14

14

15

15

17

18

19

20

22

23

24

24

24

25

26

27

28

16

29

11

2

29

3

31

21

4

3

(15)

112475_1113

3-3

Hydraulic System

INDEX NO. PART NO. QTY

1 038828 4 CS .312-18 X 2.25 HX G52 710087 4 CS .312-18 X 2.50 HX G53 768523 16 FW .343 X .687 X .051/.080H4 602253 1 BELT, A SEC, 67.6 EL5 025296 1 FW .760 X 1.625 X .08 ZNYC6 770867 2 BUSHING7 025007 1 CS .625-11 X 1.75 HX G58 784827 1 IDLER PULLEY 4.00" OD9 111771 1 PUMP TENSIONER10 601084 1 SB .750 X 2.00 SH .625-1111 036384 1 SPRING 1/4 COIL PL 1.2312 604431 1 TRANSMISSION13 604432 1 TRANSMISSION14 712919 2 FW .406 X 1.00 X .12 HRD Z15 016410 2 CS .375-16 X 2.00 G5 ZNYC16 600987 1 SPACER TUBE17 034272 8 NT .312-18 HX G5 ZNYC18 601088 2 TOW LINK ROD

19 048553 2 CP .062D X 1.00 LG HML Z20 068551 2 NT .250-20 HX ZY NL21 768515 4 FW .281 X .625 X .051/.080H22 055939 2 CS .250-20 X .75 HX G523 600759 1 OVERFLOW TANK (WITH CAP)24 601474 4 SPRING CLAMP

25 601018 1 OVERFLOW HOSE

26 600880 1 HYDRAULIC FITTING, 45 DEG27 601219 1 FITTING, 90 - 9/16 SAE28 601055 1 OVER FLOW HOSE29 000331 3 WIRE TIE

30 704791 1 FW .781 X 1.25 X .024 ZN31 600767 1 OVERFLOW TANK CAP

NOTES:

1. Torque to 17 ft-lbs.

2. Torque to 100 ft-lbs.

3. Torque to 30 ft-lbs.

4. Torque axle hub nuts to 275 ft-lbs.

(16)

Steering

2

3

STEERING

SUB-ASSEMBLY

3

3

3

3

3

3

4

5

6

7

8

8

8

8

9

10

11

11

1

12

13

14

17

18

19

15

16

20

1

21

4

(17)

112475_1113

3-5

Steering

INDEX NO. PART NO. QTY

1 784439 2 LOCK COLLAR .7502 023655 2 NT .312-24 HX NL ZN

3 768523 17 FW .343 X .687 X .051/.080 HD ZN/YL4 600221 2 STEERING DAMPER

5 600981 2 PUMP ROD

6 781922 4 BALL STUDDAMPER7 704163 2 CS .250-20 X 2.00 HX G5 ZN8 768515 12 FW .281 X .625 X .051/.080 HD ZN/YL 9 068551 2 NT .250-20 HX ZN NL10 109318 2 PUMP ARM11 034272 4 NT .312-18 HX G5 ZNYC12 041152 2 NT .312-24 HX ZNYC13 055939 4 CS .250-20 X .75 HX G5 ZN14 108968 2 STEER TUBE SUPPORT15 005116 2 CS .375-16 X 1.375 HX G5 ZN16 706168 2 NT .375-16 HX JAM GR5 ZN17 036236 1 CS .312-18 X 1.00 HX G5 ZN18 361295 1 PIVOT TUBE19 029876 2 LW .312 INT-EXT TOOTH ZN20 024927 4 NT .250-20 HX GR5 ZN21 601426 1 CAP LOCK

NOTES:

1. Supplied with the transmission.

(18)

Steering Sub-Assembly

1

2

5

4

3

3

3

3

6

5

3

7

7

3

4

8

INDEX NO. PART NO. QTY.

1 781260 2 STEERING BAR GRIP2 360487 2 STEERING BAR (WITH GRIP)3 767954 12 FW .406 X .812 X .060 SAE4 705178 6 CS .375-16 X 1.75 HX G55 086660 6 NT .375-16 NL G5

6 107843 1 LEFT STEERING ARM (SHOWN)107842 1 RIGHT STEERING ARM

7 770867 4 BUSHING

8 107848 1 LS STEER PIVOT (SHOWN)107847 1 RS STEER PIVOT

NOTES:

(19)

112475_1113

3-7

(20)

Brake

1

4

2

3

7

13

2

12

9

8

9

2

6

2

10

5

2

14

18

2

1

17

15

16

MOWER

FRAME

HYDRAULIC

TRANSMISSION

11

12

5

8

8

7

STEERING

ARM

(21)

112475_1113

3-9

Brake

INDEX NO. PART NO. QTY.

1 086660 4 NT .375-16 NL G5

2 767954 12 FW .406 X .812 X .060 SAE

3 601087 2 SWITCH

4 005108 2 CS .375-16 X 3.50 HX G5 Z5 601410 2 BRAKE ROD ASSEMBLY6 054502 2 NT .375-16 HX G5 ZNY7 023655 4 NT .312-24 HX NL ZN8 768523 8 FW .343 X .687 X .051/.080H

9 765339 4 BUSHING

10 107893 1 LS BRAKE BELL CRANK11 107892 1 RS BRAKE BELL CRANK12 080655 2 CS .375-16 X 1.50 HX G513 600991 2 SHORT BRAKE LINK ROD14 601131 2 SPRING

15 109203 1 LS BRAKE SPRING LINK

109202 1 RS BRAKE SPRING LINK (NOT SHOWN)16 055939 2 CS .250-20 X .75 HX G5

17 016816 2 NT .250-20 HX FL LK ZNY18 601051 2 OVERTRAVEL SPRING

NOTES:

(22)(23)

112475_1113

4-1

Section 4

Wheel & Tire . . . 4-2

Wheel & Tire Breakdown . . . 4-4

(24)

Wheel & Tire

1

3

1

2

4

5

6

7

7

8

9

10

11

11

12

13

(25)

112475_1113

4-3

Wheel & Tire

INDEX NO. PART NO. QTY

1 600668 2 TIRE/WHEEL ASSEMBLY 20 X 10-10 (48" MOWER)601349 2 TIRE/WHEEL ASSEMBLY 20 X 12-10 (54" & 60" MOWERS)2 111875 2 BACKUP PLATE3 061077 8 WHEEL NUT4 705954 2 CS .500-13 X 1.25 HX G5 ZN5 712976 2 FW .531 X 1.375 X .125 ZNY6 344267 2 FW .510 X 2.15 X .187 SPL ZN7 784223 4 BEARING8 784603 2 SPACER9 190024 2 FORK10 061101 2 NT .750-10 HX NL ZN11 025296 4 FW .760 X 1.625 X .08 ZN12 786731 2 CS .750-10 X 8.00 HX ZN13 786061 2 WHEEL & TIRE ASSY 13 X 5 - 6

NOTES:

1. Torque to 65–75 ft-lbs.

(26)

Wheel & Tire Breakdown

1

3

2

6

5

4

5

3

600668 TIRE/WHEEL ASSEMBLY (48" DECKS)INDEX NO. PART NO. QTY.

1 600700 1 WHEEL

2 600684 1 TIRE, 18 X 8.503 019521 1 TIRE VALVE601349 TIRE/WHEEL ASSEMBLY (54" & 60" DECKS)

1 601348 1 TIRE 20 X 12-10 2 601347 1 WHEEL 10 X 8.53 019521 1 TIRE VALVE786061 TIRE/WHEEL ASSEMBLY3 019521 1 TIRE VALVE4 786079 1 WHEEL ASSEMBLY5 786103 2 WHEEL BEARING6 747402 1 TIRE, 13.00 X 5.00-6

NOTES:

DESCRIPTION

(27)

112475_1113

5-1

Section 5

Engine, 21 HP Briggs & Stratton . . . 5-2

Engine, 26 HP Briggs & Stratton . . . 5-4

Engine, Kohler . . . 5-6

Fuel System. . . 5-8

(28)

Engine, 21 HP Briggs & Stratton

1

2

3

4

6

7

1

1

1

1

5

6

12

11

1

13

14

15

16

5

6

1

19

20

21

24

22

23

25

26

28

17

18

4

RED/

RED

BLK

BLK

BLK

5

6

9

10

15

27

8

PART OF

ENGINE

2

3

(29)

112475_1113

5-3

Engine, 21 HP Briggs & Stratton

INDEX NO. PART NO. QTY

1 N/A 1 ENGINE 21 HP BRIGGS 2 601844 1 BRIGGS CONTACT COVER3 602062 1 SC # 8 X 1.00 PHCR BO4 601319 2 POS. BATTERY CABLE BOOT5 024927 5 NT .250-20 HX GR5 ZN

6 768515 7 FW .281 X .625 X .051/.080 HD ZN/YL7 601312 1 BATTERY CABLE, POS. 4.00" LENGTH8 055939 2 CS .250-20 X .750 HX G5 ZN

9 744276 1 POSITIVE BATTERY CABLE10 044255 1 NT #10-32 HX ZN

11 030817 1 STARTER SOLENOID12 601818 1 OIL DRAIN - 3/8-18 NPTF 13 104786 1 OIL DRAIN HOSE14 034272 4 NT .312-18 HX G5 ZN

15 768523 8 FW .343 X .687 X .051/.080 HD ZN/YL16 601063 1 BATTERY CABLE, NEG

17 029876 1 LW .312 INT-EXT TOOTH ZN18 052837 4 CS .312-18 X 1.500 HX G5 ZN19 000331 5 WIRE TIE, SMALL/SHORT20 784918 1 BUMPER, RUBBER21 712372 1 KEY 1/4 SQ X 0.66 LONG22 799429 1 PULLEY, A SEC, 4.5 OD

23 791251 1 WIRE HARNESS CLUTCH PIGTAIL WITH DIODE24 601784 1 CLUTCH

25 763417 1 FW .454 X 1.50 X .250

26 601834 1 CS .437-20 X 3.250 HX G5 ZNYC27 000323 2 CLIP, HOSE CLAMP

28 015818 8" FUEL LINE

NOTES:

1. Part of the wire harness.

2. Connects to the negative terminal on the battery.

3. Connects to the positive terminal on the battery.

4. Torque to 45-48 ft-lbs. Replace (do not reuse) the cap screw if it’s removed

or loosened.

(30)

Engine, 26 HP Briggs & Stratton

1

1

3

2

5

4

7

3

2

3

8

9

1

10

11

13

12

14

1

16

15

17

10

11

11

10

18

20

24

21

22

23

25

26

27

28

29

30

31

32

31

3

6

4

5

1

2

BLK

BLK

RED

BLK

19

1

1

(31)

112475_1113

5-5

Engine, 26 HP Briggs & Stratton

INDEX NO. PART NO. QTY

1 N/A 1 ENGINE, B&S 26HP ELS2 034272 3 NT .312-18 HX G5 ZNYC3 768523 4 FW .343 X .687 X .051/.080 HD4 601063 1 BATTERY CABLE, NEG.5 029876 1 LW .312 INT-EXT TOOTH ZN6 792788 3 SC.375-16X1.0HX FL STP7 052837 1 CS .312-18 X 1.500 HX G58 602062 1 SC # 8 X 1.00 PHCR BO9 602422 1 STATIC COVER ASSEMBLY10 024927 5 NT .250-20 HX GR.5 ZNYC11 768515 7 FW .281 X .625 X .051/.080 HD12 744276 1 BATTERY CABLE POSITIVE13 104786 1 OIL DRAIN HOSE

14 601818 1 OIL DRAIN - 3/8-18 NPTF15 602389 1 MUFFLER, BRIGGS 2616 044255 1 NT #10-32 HX ZN

17 601319 2 POS. BATTERY CABLE BOOT18 055939 2 CS .250-20 X .750 HX G519 601312 1 BATTERY CABLE, POS.20 030817 1 STARTER SOLENOID HW KIT21 000331 5 WIRE TIE, SMALL/SHORT22 712372 1 KEY 1/4 SQ X 0.66 LG (FS)23 784918 1 BUMPER, RUBBER

24 791251 1 HARNESS, CLUTCH PIGTAIL25 799429 1 PULLEY, A SEC, 4.5 OD26 601784 1 CLUTCH27 763417 1 FW .454 X 1.50X.25028 601834 1 CS .437-20 X 3.250 HX G529 108969 1 MUFFLER SHIELD30 016253 2 CB .312-18 X .750 FUL ZN31 000323 2 CLIP32 015818 5" FUEL LINE, 1/4"

NOTES:

1. Part of the wire harness.

2. Contains a 25 amp fuse.

3. Supplied with the engine.

4. Torque to 45-48 ft-lbs. Replace (do not reuse) the cap screw if it’s removed

or loosened.

5. Torque to 30 ft-lbs.

(32)

Engine, Kohler

1

3

4

2

3

5

4

6

4

7

1

1

1

1

9

4

3

8

10

11

11

10

1

12

13

14

15

15

3

4

19

1

22

23

24

25

26

27

28

29

30

30

31

16

17

18

4

RED/

RED

5

5

BLK

BLK

BLK

32

2

3

1

PUR

20

21

10

11

(33)

112475_1113

5-7

Engine, Kohler

INDEX NO. PART NO. QTY

1 N/A 1 ENGINE, KOHLER SV715 & SV725 2 601319 2 POSITIVE BATTERY CABLE BOOT3 024927 5 NT .250-20 HX GR5 ZN

4 768515 7 FW .281 X .625 X .051/.080 HD ZN/YL5 601312 1 BATTERY CABLE POSITIVE6 055939 2 CS .250-20 X .750 HX G5 ZN7 044255 1 NT #10-32 HX ZN

8 030817 1 STARTER SOLENOID9 744276 1 BATTERY CABLE POSITIVE10 034272 4 NT .312-18 HX G5 ZN

11 768523 4 FW .343 X .687 X .051/.080 HD ZN/YL12 601063 1 BATTERY CABLE NEGATIVE13 111894 1 GROUND STRAP

14 029876 1 LW .312 INT-EXT TOOTH ZN15 792788 4 SC .375-16 X 1.00 HX FL STP ZN16 785543 2 GASKET, MUFFLER

17 017004 4 LW .312 MED SPRING ZNYC18 704478 2 CS .312-18X .75 SKTHD19 602320 1 MUFFLER20 108969 1 MUFFLER SHIELD21 016253 2 CB .312-18X .750 FUL ZN22 000331 5 WIRE TIE23 784918 1 BUMPER, RUBBER24 712372 1 KEY 1/4 SQ X 0.66 LONG25 799429 1 PULLEY A SEC 4.5 OD26 601784 1 CLUTCH

27 791251 1 HARNESS, CLUTCH PIGTAIL28 763417 1 FW .454 X 1.50 X .250

29 601834 1 CS .437-20 X 3.25 HX G5 ZNYC30 000323 2 CLIP

31 015818 7" 1/4" FUEL LINE32 796672 1 OIL DRAIN VALVE

NOTES:

1. Part of the wire harness.

2. Connects to the negative terminal on the battery.

3. Connects to the positive terminal on the battery.

4. Torque the bolt to 45-48 ft-lbs. Replace (do not reuse) the cap screw if it’s

removed or loosened. Use only hand tools to install this fastener

5. Torque to 30 ft-lbs. If the fastener is loosened or removed, do not reuse it.

Replace it with a new fastener. Use only hand tools to install this fastener.

(34)

Fuel System

1

1

2

3

3

4

4

5

5

5

6

6

7

7

7

7

8

8

9

10

9

10

11

11

12

12

13

1

A

B

(35)

112475_1113

5-9

Fuel System

INDEX NO. PART NO. QTY

1 602373 1 LS FUEL TANK2 602372 1 RS FUEL TANK3 779306 2 FUEL CAP, 3.5"4 015818 36" 1/4" FUEL LINE5 000323 4 HOSE CLAMP6 034280 2 CS .312-18 X .75 HX G57 768523 4 FW .343 X .687 X .051/.080H8 034272 2 NT .312-18 HX G5 ZNYC9 055822 6 CS .375-16 X .75 HX G510 712919 6 FW .406 X 1.00 X .12 HRD Z11 745059 1 FUEL VALVE 3-WAY12 000398 2 LOOP CLAMP13 000331 1 WIRE TIE

NOTES:

1. Torque to 7 ft-lbs.

DESCRIPTION

FUEL & VAPOR LINE LENGTHS

24" LEFT TANK TO VALVE (FUEL)

12" RIGHT TANK TO VALVE (FUEL)

A

(36)(37)

112475_1113

6-1

Section 6

Battery . . . 6-2

Instrument Panel—Briggs & Stratton. . . 6-4

Instrument Panel—Kohler . . . 6-6

(38)

Battery

1

2

3

5

4

5

5

6

6

7

8

(39)

112475_1113

6-3

Battery

INDEX NO. PART NO. QTY.

1 714618 2 CS .312-18 X 4.00 HX G52 768523 2 FW .343 X .687 X .051/.080H3 348417 1 BATTERY CLAMP STRAP4 055939 2 CS .250-20 X .75 HX G55 029868 4 LW .250 INT-EXT TOOTH Z6 024927 2 NT .250-20 HX G5 ZNYC7 771428 1 RED BATTERY CABLE BOOT8 794644 2 GM 1.50 X 2.12 X 1.759 000331 1 WIRE TIE (NOT SHOWN)

NOTES:

(40)

Instrument Panel—Briggs & Stratton

1

1

2

3

4

5

4

6

7

7

8

9

5

10

10

11

14

15

14

10A

15A

12

13

16

11

1

FUSE

FUSE

1

(41)

112475_1113

6-5

Instrument Panel—Briggs & Stratton

INDEX NO. PART NO. QTY

1 550447 1 INSTRUMENT PANEL (WITH DECAL)2 776476 1 PTO SWITCH

3 785808 1 KEY ASSEMBLY 4 045898 1 IGNITION SWITCH5 059832 4 NT #10-24 HX NL ZN

6 601053 2 SEALED RELAY (WITH BRACKET)7 601098 4 CB 10-24 X .50 ZYNC

8 602437 1 THROTTLE/CHOKE CABLE9 704932 2 FW .219 X .50 X .048 ZN10 055947 3 CS .250-20 X .50 HX G5 ZN

11 768515 3 FW .281 X .625 X .051/.080 HD ZN/YL12 602374 1 INSTRUMENT PANEL DECAL13 769166 1 HOUR METER

14 000331 8 WIRE TIE15 602430 1 WIRE HARNESS

16 114052 1 CLUTCH CONNECTOR REPAIR KIT

NOTES:

1. Part of the wire harness.

(42)

Instrument Panel—Kohler

1

1

2

3

4

5

6

6

7

8

9

9

10

2

11

7

12

12

13

16

17

16

10A

15A

14

ORG

YEL/BLK

15

18

1

13

FUSE

FUSE

1

(43)

112475_1113

6-7

Instrument Panel—Kohler

INDEX NO. PART NO. QTY

1 550446 1 INSTRUMENT PANEL (WITH DECAL)2 785030 1 CHOKE CABLE

3 776476 1 PTO SWITCH

4 712257 1 RED INDICATOR LIGHT5 785808 1 KEY ASSEMBLY 6 045898 1 IGNITION SWITCH7 059832 4 NT #10-24 HX NL ZN

8 601053 2 SEALED RELAY (WITH BRACKET)9 601098 4 CB 10-24 X .50 ZYNC

10 786384 1 THROTTLE CABLE11 704932 2 FW .219 X .50 X .048 ZN12 055947 3 CS .250-20 X .50 HX G5 ZN13 768515 3 FW .281 X .625 X .051/.080 HD ZNY14 602468 1 INSTRUMENT PANEL DECAL15 769166 1 HOUR METER

16 000331 8 WIRE TIE17 602430 1 WIRE HARNESS

18 114052 1 CLUTCH CONNECTOR REPAIR KIT

NOTES:

1. Part of the wire harness.

(44)(45)

112475_1113

7-1

Section 7

48" Service Deck . . . 7-2

54" Service Deck . . . 7-4

48" Deck Pulleys & Spindles . . . 7-6

54" Deck Pulleys & Spindles . . . 7-8

48" Deck . . . 7-10

54" Deck . . . 7-12

Deck Lift. . . 7-14

Deck Mounting Hardware . . . 7-16

(46)

48" Service Deck

2

1

4

3

2

5

6

3

(47)

112475_1113

7-3

48" Service Deck

INDEX NO. PART NO. QTY.

1 550402 1 48" DECK (WITH DECALS & HARDWARE)2 601069 2 CN .312-18 X .20 MAX THK

3 601837 2 DECK DANGERS DECAL4 601892 1 THROWN OBJECTS DECAL5 781419 1 BELT ROUTING DECAL6 601624 1 DISCHARGE CHUTE DECAL

NOTES:

(48)

54" Service Deck

1

2

3

4

4

5

6

3

(49)

112475_1113

7-5

54" Service Deck

INDEX NO. PART NO. QTY

1 550424 1 54" DECK (WITH DECALS & HARDWARE)2 781419 1 BELT ROUTING DECAL

3 601837 2 DECK DANGERS DECAL4 601069 4 CN .312-18 X .20 MAX THK5 601624 1 DISCHARGE CHUTE DECAL6 601892 1 THROWN OBJECTS DECAL

NOTES:

(50)

48" Deck Pulleys & Spindles

1

1

2

3

4

1

2

3

4

3

5

6

7

8

9

10

11

12

13

14

14

15

16

17

18

17

17

19

21

22

23

24

27

26

23

23

25

24

20

(51)

112475_1113

7-7

48" Deck Pulleys & Spindles

INDEX NO. PART NO. QTY.

1 794446 3 CS .625-11 X 1.50 HX G52 046821 3 FW .656 X 2.00 X .078 ZNYC3 797449 4 FW .650 X 1.125 X .18 ZNYC G54 784504 3 IDLER PULLEY 5.0" OD5 109770 1 IDLER SLIDE6 784199 4 CS .312-18 X 1.25 FLT SH7 601619 2 IDLER SLIDE UHMW8 781302 1 TENSION SPRING9 259812 1 CHAIN10 705954 3 CS .500-13 X 1.25 HX G5 ZN11 798603 3 FW .515 X 1.65 X .125 HD ZY12 792689 3 DRIVE PULLEY 5.19 OP13 054502 12 NT .375-16 HX G5 ZNY14 767954 24 FW .406 X .812 X .060 SAE15 005116 12 CS .375-16 X 1.375 HX G516 601804 3 SPINDLE ASSEMBLY17 768523 8 FW .343 X .687 X .051/.080H18 058776 4 NT .312-18 HX ZY NL19 034272 2 NT .312-18 HX G5 ZNYC20 109444 2 HEAVY DUTY PULLER21 034280 2 CS .312-18 X .75 HX G522 781567 2 NT .500-13 HX G8 ZY NL23 767962 6 FW .531 X 1.063 X .090 SAE

24 788166 2 PLASTIC WHEEL ASSEMBLY (WITH HARDWARE)25 031997 2 PLASTIC WHEEL26 053199 2 NT .500-13 HX JAM ZNYC27 781708 2 CS .500-13 X 4.25 HX G5

NOTES:

1. Torque to 73 ft-lbs.

DESCRIPTION

(52)

54" Deck Pulleys & Spindles

1

2

3

4

6

5

7

8

9

1

2

3

3

4

10

11

1

12

13

14

15

14

16

17

18

19

21

20

23

22

17

17

24

25

27

21

21

26

20

(53)

112475_1113

7-9

54" Deck Pulleys & Spindles

INDEX NO. PART NO. QTY.

1 794446 3 CS .625-11 X 1.50 HX G52 046821 3 FW .656 X 2.00 X .078 ZNYC3 797449 4 FW .650 X 1.125 X .18 ZNYCG54 784504 3 IDLER PULLEY 5.00"OD5 109770 1 IDLER SLIDE

6 781302 1 TENSION SPRING

7 259812 1 CHAIN

8 784199 4 CS .312-18 X 1.25 FLT SH9 601619 2 IDLER SLIDE UHMW10 705954 3 CS .500-13 X 1.25 HX G5 ZN11 798603 3 FW .515 X 1.65 X .125 HD ZY12 786889 3 DRIVE PULLEY 5.68 OP13 054502 12 NT .375-16 HX G5 ZNY14 767954 24 FW .406 X .812 X .060 SAE15 005116 12 CS .375-16 X 1.375 HX G516 601804 3 SPINDLE ASSEMBLY17 768523 8 FW .343 X .687 X .051/.080H18 058776 4 NT .312-18 HX ZY NL19 781567 2 NT .500-13 HX G8 ZY NL

20 788166 2 PLASTIC WHEEL ASSEMBLY (WITH HARDWARE)21 767962 6 FW .531 X 1.063 X .090 SAE

22 034280 2 CS .312-18 X .75 HX G523 109444 2 HEAVY DUTY PULLER24 034272 2 NT .312-18 HX G5 ZNYC25 781708 2 CS .500-13 X 4.25 HX G526 031997 2 PLASTIC WHEEL27 053199 2 NT .500-13 HX JAM ZNYC

NOTES:

1. Torque to 73 ft-lbs.

DESCRIPTION

(54)

48" Deck

2

1

3

4

5

5

4

8

7

6

10

11

13

12

9

13

11

14

15

16

1

17

20

18

19

DISCHARGE

CHUTE

FRONT

WALL

12

2

12

(55)

112475_1113

7-11

48" Deck

INDEX NO. PART NO. QTY.

1 777185 1 BELT, B 145.5" E2 601985 1 LS PULLEY COVER3 601984 1 RS PULLEY COVER4 034280 2 CS .312-18 X .75 HX G55 712927 2 FW .344 X 1.00 X.12 HRD Z6 601806 1 DISCHARGE CHUTE7 601824 1 TORSION SPRING8 601843 1 CHUTE PIN9 111067 1 CHUTE BRACKET10 190037 1 CHUTE ADAPTER PLATE11 025395 4 CB .375-16 X 1.00 STD CD12 086660 5 NT .375-16 HXZY NL13 767954 4 FW .406 X .812 X.060 SAE14 601123 3 BLADE, 16.50"-L-F-CW795757 3 BLADE, F16.50"-H-F-CW796623 3 BLADE, 16.50"-MUL-F-CW796631 3 BLADE, 16.50"-GAT-F-CW796649 3 BLADE, 16.50"-CAT-F-CW15 782474 3 CW .631 2.25 X .187 PNT16 781872 3 CS .625-11 X 1.25 HX G5 Z17 058776 2 NT .312-18 HXZY NL18 111999 1 "A" BLOWOUT BAFFLE19 016253 2 CB .312-18 X .75 FUL ZN20 768523 2 FW .343 X .687 X .051/.080H

NOTES:

1. Torque to 118 ft-lbs.

2. Do not torque the nut; the discharge chute must pivot freely.

(56)

54" Deck

1

14

15

16

1

4

5

3

8

7

6

10

11

9

13

12

11

12

17

20

18

19

FRONT

WALL

DISCHARGE

CHUTE

13

4

5

12

2

2

(57)

112475_1113

7-13

54" Deck

INDEX NO. PART NO. QTY.

1 789388 1 BELT, B 152" EL2 602749 1 LS PULLEY COVER3 602748 1 RS PULLEY COVER4 034280 4 CS .312-18 X .75 HX G55 712927 4 FW .344 X 1.00 X.12 HRD Z6 601806 1 DISCHARGE CHUTE7 601824 1 TORSION SPRING8 601843 1 CHUTE PIN9 111067 1 CHUTE BRACKET10 190037 1 CHUTE ADAPTER PLATE11 025395 4 CB .375-16 X 1.00 STD CD12 086660 5 NT .375-16 HXZY NL13 767954 4 FW .406 X .812 X .060 SAE14 601124 3 BLADE, 18.50"-L-F-CW797696 3 BLADE, F18.50"-H-F-CW797704 3 BLADE, 18.50"-MUL-F-CW797712 3 BLADE, 18.50"-GAT-F-CW15 782474 3 CW .631 2.25 X .187 PNT16 781872 3 CS .625-11 X 1.25 HX G5 Z17 058776 2 NT .312-18 HXZY NL18 111999 1 "A" BLOWOUT BAFFLE19 016253 2 CB .312-18 X .75 FUL ZN20 768523 2 FW .343 X .687 X .051/.080H

NOTES:

1. Torque to 118 ft-lbs.

2. Do not torque the nut; the discharge chute must pivot freely.

(58)

Deck Lift

1

2

3

4

5

6

7

5

6

7

7

8

9

10

10

8

9

9

8

7

7

11

12

13

10

14

8

9

8

9

15

16

7

6

5

17

(59)

112475_1113

7-15

Deck Lift

INDEX NO. PART NO. QTY

1 348318 1 STOP HANDLE2 348284 1 HEIGHT ADJ STOP3 784488 1 DECK LIFT INDICATOR4 601942 1 DECK LIFT ROD NO SPRING5 055749 7 CS .437-14 X 1.75 HX G56 360131 4 DECK LIFT CHAIN7 704643 16 NT .437-14 HX FLG ZN8 601681 6 FW .781 X 1.50 X .120 ZNYC9 781294 7 E CLIP 1.00 X .625 X .0510 015495 4 GREASE FITTING STRAIGHT11 756270 1 CS .312-18 X 1.50 FLTHR HX12 034272 1 NT .312-18 HX G5 ZNYC13 348458 1 DECK LEVELER YOKE14 767962 8 FW .531 X 1.063 X .090 SAE15 781229 1 CE .750 X 2.25 X 1.75 HEAD16 782995 1 DECK LIFT SPRING17 781831 1 CS .437-14 X 1.75 FULTH

NOTES:

(60)

Deck Mounting Hardware

5

14

7

7

18

19

14

(61)

112475_1113

7-17

Deck Mounting Hardware

INDEX NO. PART NO. QTY

18 078949 2 CS .500-13 X 2.00 G5 ZNY19 008193 2 NT .500-13 HX G5 ZNYC

NOTES:

(62)(63)

112475_1113

8-1

Section 8

Seat . . . 8-2

ROPS—Foldable . . . 8-4

(64)

Seat

1

7

8

9

10

11

12

8

8

8

14

15

16

11

13

13

17

18

2

1

2

7

5

3

3

2

3

3

4

4

6

8

(65)

112475_1113

8-3

Seat

INDEX NO. PART NO. QTY

1 793661 1 SEAT

2 797076 2 CS .437-20 X 1.00 HX G8 ZNYC3 017129 4 FW .440 X 1.00 X .083 ZNY4 601444 1 SEAT BELT

5 704635 2 NT .437-20 HX G5 ZNYC6 794610 1 SEAT BELT CROSS BAR7 034280 3 CS .312-18 X .750 HX G58 768523 11 FW .343 X .687 X .051/.080H9 108321 1 SEAT LATCH

10 808485 1 5/16-18 THREAD RIVET NUT11 000331 2 WIRE TIE

12 550412 1 SEAT PAN (WITH DECAL)13 058776 6 NT .312-18 HX ZY NL14 052860 2 CS .375-16 X 1.25 HX G5 ZN15 767954 2 FW .406 X .812 X .060 SAE16 601450 2 SEAT SPRING 150 LB/IN17 064014 2 CS .312-18 X .875 HX G5 ZN18 601815 1 BATTERY WARNINGS DECAL

NOTES:

1. Part of the seat.

2. Do not torque; the seat pan must pivot freely.

(66)

ROPS—Foldable

1

1

2

3

4

5

6

7

4

4

7

8

8

9

1

(67)

112475_1113

8-5

ROPS—Foldable

INDEX NO. PART NO. QTY.

1 601439 1 ROPS KIT (WITH DECALS, SEAT BELT & HARDWARE)2 061812 1 CS .500-13 X 3.50 HX G5

3 601472 1 ROPS STOP

4 023317 6 NT .500-13 UNT LK G8 ZN5 601470 2 HAND KNOB

6 601471 2 LYNCH PIN W/ LANYARD7 077859 5 CS .500-13 X 3.25 HX G58 767962 8 FW .531 X 1.063 X .090 SAE9 601635 2 ROPS DECAL

NOTES:

1. Torque to 55 ft-lbs.

DESCRIPTION

(68)
BigDog Mowers R Series Parts Manual (2024)

FAQs

Where is the model number for big dog mower? ›

Mower model and serial numbers are found on the serial identification plate, located on the left mower frame side rail. These numbers are required when the unit is registered with BigDog Mowers.

Who bought out big dog mowers? ›

Stanley Black & Decker has entered into a definitive agreement to acquire Excel Industries, manufacturer of Hustler Turf Equipment and Big Dog products, for $375 million in cash.

Who builds big dog mowers? ›

Excel Industries is the manufacturer of BigDog Mower Co. and has been in America's heartland for over 50 years. A career with Excel Industries means applying your knowledge, experience and skill set to a variety of positions, from the production line to upper management.

How long is the warranty on a big dog mower? ›

7-Year Warranty

We believe in standing by our work, offering the hands-down best warranty in the entire industry; seven full years of quality.

How do I tell what year my big dog mower is? ›

The sticker contains both a Model number (9#####) and a Serial number. The first 2 digits of the Serial number represent the year.

When did Big Dog go out of business? ›

In 2006, Big Dog manufactured its 20,000th motorcycle. In 2007, it laid off people for the initial time upon not selling the expected number of motorcycles. In April 2011, Big Dog shut down.

What engine is on a big dog mower? ›

Who knew a mower could look so good? Get all the power and speed you will ever need with the Alpha MP. The Alpha MP provides maximum style and performance standard with a Briggs & Stratton PXi engine, premium seat and a rugged engine guard.

What is the oldest lawn mower company? ›

Ransomes: Celebrating the World's Oldest Lawn Mower Brand

Nestled in the heart of Ipswich, Suffolk, England, Ransomes proudly holds the title of the world's oldest lawn mower manufacturer.

What is the best zero turn for 3 acres? ›

For larger yards up to three acres in size, a 20 to 25 HP zero-turn mower is a great mid-range option. Our best gas choice, the Toro TimeCutter Zero Turn Riding Mower, offers 24.5 HP and handles yards ranging from two to four acres with ease.

Is Big Dog a good zero turn mower? ›

Just purchased this Zero Turn mower, has best motor 18 HP Kawasaki and fabricated deck, making it the best buy for entry level mower. Only took a few minutes to get used to tiller controls, has heaps of power and is OK on slopes, looking forward to turning more of my grass area into lawn. Best equipped for price.

How fast does a big dog mower go? ›

Demand speed and maximum performance! The Diablo MP is the fastest mower in our line with a top speed of up to 14mph powered by Vanguard Big Block™ engines.

How many years does a lawn mower last? ›

If your riding mower is showing signs of decline, or you're thinking about upgrading to a riding mower, you may be wondering "How long do riding mowers last?" You can expect to get anywhere from six to ten years out of your riding mower, or longer with proper care and maintenance.

How many hours does a mower deck belt last? ›

There is no specific time length that mower belts need to be replaced. Some belts may last longer than others due to different operating conditions. One thing is for certain though, the more the mower is used, the sooner you will need to consider replacing the mower belt.

How many hours on a commercial mower is a lot? ›

For commercial mowers that are made to mow more often and for longer periods of time, the hours of life expectancy increase. A lower-end commercial mower will last around 1,200-1,500 hours, while a John Deere commercial mower is built to last for 2,000-2,500 hours.

Where is the model number on a Cub Cadet? ›

The model number on a Cub Cadet riding lawn mower is located on the underside of the seat. The model number will begin with 13 or 14. The model number on a Cub Cadet riding lawn mower is located on the underside of the seat.

What model lawn boy mower do I have? ›

You can find the model and serial number on the top of the mower and near the left rear tire.

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