Gravely 987072, 987071, 987070 User Manual

Professional G Series

Parts Manual

Models

987070 - G Series 987071 - G Series 987072 - G Series

08471600E 5/01

Supercedes 08471600, A, B,C, D

Printed in USA

ANUAL

RODUCT

EGISTRATION

Before you operate your unit, carefully and completely read manuals supplied with the unit. The contents will provide you with an understanding of safety instructions and controls during normal operation and maintenance.

For your safety and the safety of others always read, understand, and follow all DANGER, WARNING, and CAUTION messages found in manuals and on safety decals.

Hardware descriptions are given in decimals.

Decimals to Fractions

.063 1/16 .563 9/16

.125 1/8 .625 5/8

.188 3/16 .688 11/16

.250 1/4 .750 3/4

.313 5/16 .813 13/16

.375 3/8 .875 7/8

.438 7/16 .938 15/16

.500 1/2 1.00 1

ERVICE

When ordering replacement parts or making service inquiries, know the Model and Serial numbers of your unit and engine.

Numbers are located on the product registration card in the unit literature package. They are printed on a serial number label, located on the frame of your unit.

• Record Unit Model and Serial numbers here:

AND

EPLACEMENT

ARTS

A warranty registration card must be ﬁlled out, signed, and returned at time of purchase. This card activates the warranty. Claims meeting requirements during limited warranty period will be honored.

OUR

Questions? Please follow these helpful steps:

1. Refer to the manuals supplied with your unit.

They will guide you through safe and proper operation and maintenance.

They contain speciﬁcations on your unit. If your questions are not answered in these manuals,

go to step number two.

2. Contact Your Dealer.

Our dealers will be happy to supply any service or advice required to keep your unit operating at peak efﬁciency.

A factory trained staff is available to support your equipment needs. They stock genuine Gravely parts and lubricants manufactured with the same precision and skill as the original.

If your questions are not resolved by the support staff, ask for the manager or owner.

When contacting your Dealer supply your model and serial numbers.

TO SPEED PARTS ORDERING:

1. Know the model and serial numbers of your unit.

2. Know the part number required.

3. Know the quantity required.

4. Know the part description.

ATISFACTION

MPORTANT

• Record Engine Model and Serial numbers here:

UNAUTHORIZED REPLACEMENT PARTS

Use only Gravely replacement parts. The replacement of any part on this vehicle with anything other than a Gravely authorized replacement part may adversely affect the performance, durability, or safety of this unit and may void the warranty. Gravely disclaims liability for any claims or damages, whether warranty, property damage, personal injury or death arising out of the use of unauthorized replacement parts.

ODELS

Model 987070

16 H.P. Briggs & Stratton with Hydraulic Lift Serial No. 000101 and up

Model 987071

13.5 HP Robin Engine with Hydraulic Lift Serial No. 000101 and up

Model 987072

20.5 H.P. Robin with Hydraulic Lift Serial No. 000101 and up

ABLE

ECALS

Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

RANSMISSION

Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Number One Shaft - Forward Clutch . . . . . . . . . . . . . 7

Number Two Shaft - Reverse Clutch . . . . . . . . . . . . . 8

Number Three Shaft - 3rd and 4th Gear . . . . . . . . . . 9

Number Four Shaft - Idler . . . . . . . . . . . . . . . . . . . . . 9

Number Five Shaft - 1st and 2nd Gear . . . . . . . . . . . 9

Number Six Shaft - Brake/Sliding Gear . . . . . . . . . . 10

Number Seven Shaft - Pinion/Final Drive. . . . . . . . . 11

Number Eight Shaft - Differential Assembly. . . . . . . 11

Number Nine Shaft - PTO Clutch. . . . . . . . . . . . . . . 12

Number Ten Shaft - PTO Drive Assembly . . . . . . . . 13

Number Eleven - Fwd-Rev Clutch Assembly . . . . . . 13

Number Twelve - Transmission Case Assembly. . . . 14

Number Thirteen Transmission Cover . . . . . . . . . . . 15

RAME

Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Hood and Grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Rear Deck and Seat. . . . . . . . . . . . . . . . . . . . . . . . . 20

Rear Hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Front and Rear Wheels . . . . . . . . . . . . . . . . . . . . . . 23

, D

ECK

ONTENTS

EAT

, S

AND

HEELS

YDRAULICS

Manual Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

TEERING

Steering - 13.5 & 16 HP Units . . . . . . . . . . . . . . . . . 26

Steering - 20.5 HP Units . . . . . . . . . . . . . . . . . . . . . 28

Direction Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Transmission Controls . . . . . . . . . . . . . . . . . . . . . . . 32

Brake Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

NGINE

Robin -13.5 HP Units . . . . . . . . . . . . . . . . . . . . . . . . 36

Briggs and Stratton - 16 HP Units . . . . . . . . . . . . . . 38

Robin - 20.5 HP Units . . . . . . . . . . . . . . . . . . . . . . . 40

LECTRICAL

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Continuity Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . 44

Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

, F

UEL

AND

XHAUST

Model 987070, 071, 072

ECALS

Item Part No. Qty. Description

1 011989 1 Decal-E-System Warning 2 07725300 1 Decal-G Series Cover Plate (071)

07725400 1 Decal-G Series Cover Plate (070, 072)

3 07741000 1 Decal-Model 14-G (071)

07741100 1 Decal-Model 16-G (070) 07741200 1 Decal-Model 20-G (072)

4 053131 1 Decal-Caution 5 07716800 1 Decal-G-Series Maintenance 6 07740900 1 Decal-Hood, G-Series (L.H.)

07740800 1 Decal-Hood, G-Series (R.H.)

7 07741300 1 Decal-Rear Deck

ECALS

Model 987070, 071, 072

RANSMISSION

Item Part No. Qty. Description

1 Page 7 No. 1 Shaft-Forward Clutch 2 Page 8 No. 2 Shaft-Reverse Clutch 3 Page 9 No. 3 Shaft-3rd and 4th Gear 4 Page 9 No. 4 Shaft-Idler 5 Page 9 No. 5 Shaft-1st and 2nd Gear 6 Page 10 No. 6 Shaft-Brake-Sliding Gear 7 Page 11 No. 7 Shaft-Pinion-Final Drive 8 Page 11 No. 8 Shaft-Differential Assembly

9 Page 12 No. 9 Shaft-PTO Clutch 10 Page 13 No. 10 Shaft-PTO Drive Assembly 11 Page 13 No. 11 Fwd-Rev Clutch Assembly 12 Page 14 No. 12 Transmission Case Assembly 13 Page 15 No. 13 Transmission Cover Assembly

PJ0061

UMBER

HAFT

- F

ORWARD

LUTCH

Model 987070, 071, 072

Item Part No. Qty. Description

1 046371 1 Shaft, Forward Clutch

2 117989 1 Key, Woodruff .19 x 1.25

3 431787 1 Key, Woodruff .19 x .63

4 017949 4 Bearing, Roller .75 x 1.00 x .50

5 018025 1 Assembly, Gear and Bearing

6 036407 5 Washer, Hardened-Thrust .76 x 1.23 x .031

7 006741 3 Bearing, Needle Thrust .75 x 1.24 x .078

8 017926 1 Weldment, Shifter

9 020755 1 Weldment, Shift Rail 10 018011 1 Gear, Spur 2SP 10 Diametral Pitch 36 Teeth 11 018007 1 Assembly, Gear and Bearing 12 006742 1 Washer, Thrust Hardened .75 x 1.24 x .062 13 011135 3 Ring, Retaining-Internal .75 x .042 14 051320 1 Gear, Bevel 15 018003 1 Gear, 10 Diametral Pitch 16 Teeth x .75 16 06413300 1 Washer, Hardened-Thrust .76 x 1.25 x .094 17 020444 1 Spring-Compression .085 x .80 x 1.00 18 421202 1 Pin-Roll .19 x 1.00 19 017929 1 Arm, Shifter 20 021141 1 Washer-Felt .44 x 1.00 x .031 21 017925 1 Bushing, Flange-Bronze .63 x .50 x 1.00 22 018035 1 Seal .75 x 1.63 x .25 23 050604 1 Hub,Clutch 24 046323 1 Seal 2.25 x 3.25 x .38 25 046321 1 Bearing-Ball 1.97 x 3.54 x .80 26 046322 1 Ring-Retaining-Internal 3.54 x .11 27 017919 1 Ring-Retaining-External 1.82 x .062 28 017913 1 Bearing-Needle .75 x 1.00 x .75

PJ0071

Model 987070, 071, 072

UMBER

HAFT

- R

EVERSE

LUTCH

PJ0081

Item Part No. Qty. Description

1 431787 2 Key-Woodruff .19 x .63

2 034730 1 Shaft, Splined Reverse Clutch

3 036407 6 Washer-Hardened-Thrust .76 x 1.23 x .031

4 006741 3 Bearing-Needle Thrust .75 x 1.24 x .078

5 018020 1 Gear,Idler Assembly

6 017949 4 Bearing-Roller .75 x 1.0 x .50

7 018003 1 Gear,10 Diametral Pitch 16 Teeth x .75

8 011135 3 Ring-Retaining-Internal .75 x .042

9 006742 1 Washer-Thrust-Hardened .75 x 1.24 x .062 10 017947 1 Assembly, Reverse Gear and Bearing 11 020444 1 Spring-Compression .09 x .80 x 1.00 12 017919 1 Ring-Retaining-External 1.82 x .062 13 018872 1 Ring-Retaining-Internal 3.52 x .11 14 017915 1 Bearing-Ball 1.97 x 3.14 x .63 15 017917 1 Seal 2.25 x 3.00 x .38 16 051555 1 Hub,Clutch 17 018035 1 Seal .75 x 1.63 x .25 18 011063 1 Bearing-Needle .75 x 1.00 x .75

UMBER

HREE

, F

OUR

AND FIVE SHAFTS

NUMBER THREE - 3RD AND 4TH GEAR

Model 987070, 071, 072

NUMBER FOUR - IDLER

NUMBER FIVE - 1ST AND 2ND GEAR

PJ0091

PJ0101

Item Part No. Qty. Description

1 018000 1 Washer-Thrust .06 x 1.15 x .093

2 017999 1 Bushing-Sleeve Steel 1.03 x 1.13 x .46

3 019535 1 Gear

4 017997 1 Shaft, Splined

5 017992 2 Gear, 10 Diametral Pitch 16 Teeth x .75

6 015118 3 Gear, 10 Diametral Pitch 20 Teeth x .60

7 017914 1 Bearing-Needle .63 x .81 x .75

8 017995 1 Shaft, Splined

9 015115 2 Gear, 10 Diametral Pitch 30 Teeth x .50 10 017993 1 Bushing-Sleeve Steel 1.03 x 1.13 x 1.13 11 017989 1 Shaft, Splined 12 017913 4 Bearing-Needle .75 x 1.00 x .75

PJ0111

NUMBER SIX SHAFT - BRAKE / SLIDING GEAR

Model 987070, 071, 072

Item Part No. Qty. Description

1 05965500 1 Bolt-Hex .50-13 x 2.75 Grade 5

2 06441900 1 Washer-Flat-Steel .53 x 1.06 x .095

3 018165 1 Bushing-Sleeve Steel .55 x .75 x 2.06

4 06535300 1 Nut-Locking-Center .62-11

5 040732 1 Assembly, Brake Band

6 021371 1 Drum-Brake

7 421202 1 Pin-Roll .19 x 1.00

8 017945 1 Arm, Shifter

9 021141 1 Washer-Felt .44 x 1.00 x .031 10 017944 1 Arm, Shifter 11 271089 1 Key-Woodruff Hard .13 x .38 Hard 12 017943 1 Bushing-Flange Bronze .76 x 1.13 x .75 13 015137 1 Seal .75 x 1.25 x .136 14 018018 1 O-Ring .625 x .75 x .062 15 017940 1 Weldment, 1st and 3rd Shifter 16 017937 1 Weldment, 2nd and 4th Shifter 17 014988 1 Gear, 8 Diametral Pitch 16 Teeth x .85 18 014987 1 Ring-Retaining External .92 x .125 19 021370 1 Shaft, Slide Gear 20 014989 1 Gear, Sliding 10 Diametral Pitch 36 Teeth x .59 21 014995 1 Gear, Sliding 10 Diametral Pitch 30 Teeth x .59 22 06413300 1 Washer-Hardened-Thrust .76 x 1.25 x .094 23 020761 1 Weldment, Rail Shift Fork 1 and 3 24 456384 2 Pin-Roll .25 x .75 25 020762 1 Weldment, Rail Shift Fork 2 and 4 26 017913 2 Bearing-Needle .75 x 1.00 x .75

PJ0121

NUMBER SEVEN AND EIGHT SHAFTS

NUMBER SEVEN -PINION / FINAL DRIVE

Model 987070, 071, 072

NUMBER EIGHT - DIFFERENTIAL ASSEMBLY

PJ0131

Item Part No. Qty. Description

1 019340 2 Washer-Hardened-Thrust 1.00 x 1.55 x .03

2 017987 1 Gear, 8 Diametral Pitch 30 Teeth x .75

3 017986 1 Pinion / Final Drive

4 017912 1 Bearing-Needle 1.00 x 1.25 x .75

5 06529800 4 Nut-Locking-Center .31-18

6 020514 4 Nut-Hex .31-18 Grade 8

7 023712 4 Bolt-Hex .31-18 x 2.75 Grade 8

8 050116 2 Axle, Bevel Gear Differential

9 046014 2 Bearing-Ball 1.57 x 2.68 x .59 10 046013 2 Cap, Differential End 11 021608 2 Ring-Retaining-External 1.15 x .093 12 019952 2 Pinion Bevel 13 046376 2 Block, Drive 14 023531 1 Gear, Final Drive 15 046012 2 Gear, Bevel 16 019954 1 Pin, Spider Pinion 17 431787 2 Key-Woodruff .19 x .63

PJ0141

Model 987070, 071, 072

NUMBER NINE SHAFT - PTO CLUTCH

Item Part No. Qty. Description

1 011270 2 Ring-Retaining-External .57 x .05

2 018019 1 Lever,PTO

3 124549 5 Key-Woodruff .19 x .75

4 017966 1 Ring-Retaining-External 1.38 x 1.30

5 017967 1 Bearing-Ball 1.38 x 2.44 x .55

6 017952 1 Cup, Clutch

7 017953 1 Assembly, Clutch Cone Bearing

8 017957 1 Cup, Clutch

9 017949 2 Bearing-Roller .75 x 1.00 x .50 10 017958 1 Bushing-Sleeve Steel .891 x 1.00 x 1.21 11 018017 1 Shaft, PTO Yoke 12 018018 2 O-Ring .63 x .75 x .062 13 018016 1 Yoke, PTO 14 06413300 1 Washer-Hardened-Thrust .76 x 1.25 x .094 15 017962 1 Bushing-Sleeve 1.00 x 1.12 x 1.00 16 017960 1 Assembly, Shifting Collar 17 017959 2 Washer-Thrust 1.55 x 1.00 x .093 18 011225 1 Bearing-Needle-Thrust 1.00 x 1.55 x .078 19 034194 1 Sleeve, PTO Throw-Out 20 034193 1 Spring-Compression .19 x 5.50 21 017965 1 Gear, Spur PTO 10 Diametral Pitch 22 Teeth 22 015733 2 Ring-Retaining .70 x .93 23 017951 1 Shaft, PTO Clutch 24 58701400 AR Kit, Sleeve and Spring

PJ0151

NUMBER TEN AND ELEVEN SHAFTS

NUMBER TEN SHAFT - PTO DRIVE ASSEMBLY

Model 987070, 071, 072

NUMBER ELEVEN - FORWARD / REVERSE CLUTCH ASSEMBLY

PJ0162

PJ0170

Item Part No. Qty. Description

1 05968600 1 Bolt-Hex .50-20 x 1.50

2 06442800 1 Washer-Flat-Steel .66 x 1.31 x .095

3 017922 1 Gear, Spur PTO 10 Diametral Pitch 56 Teeth

4 017924 1 Bushing-Sleeve Steel 1.06 x 1.38 x 1.38

5 014640 1 Bearing-Assembly 1.00 x 1.98 x 1.24

6 04902800 1 Shaft, PTO

7 017923 1 Seal 1.38 x 2.13 x .32

8 044141 1 Rivet (Bag of 50 - 041608)

9 040692 2 Lining, Clutch 10 042481 2 Ring, Clutch 11 042482 2 Assembly, Clutch and Ring 12 035330 2 Bearing-Ball 1.57 x 3.15 x .71 13 035681 2 Pin, Clutch Spring 14 034734 2 Trunion, Forward-Reverse Clutch 15 06707500 2 Pin-Cotter .06 x .75 16 042482 2 Disc,Clutch

NUMBER TWELVE - TRANSMISSION CASE ASSEMBLY

Model 987070, 071, 072

Item Part No. Qty. Description

1 06308600 2 Washer-Locking .31 x .078

2 05946900 2 Bolt-Hex .31-18 x 1.00 Grade 5

3 009660 1 Bearing-Needle .75 x 1.00 x .50

4 046302 1 Cap, Front PTO

5 015137 1 Seal .75 x 1.25 x .136

6 07704100 1 Plug, Cup .50

7 274301 5 Ball .31

8 017936 4 Spring-Compression .045 x .30 x 1.50

9 103877 3 Plug-Pipe .12 Square Head Unﬁnished Steel 10 018200 1 Pin, Interlock 11 421743 1 Plug, Cup .38 12 050115 1 Assembly, Transmission Case 13 019472 1 Cap, Pipe .50 NPT 14 024772 1 Spring-Compression .045 x .30 x .94 15 07024300 1 Nipple, Pipe .50 x 2.50 Unﬁnished Steel 16 018421 1 Plate, Cover 17 06436200 2 Washer-Flat-Steel .41 x .81 x .065 18 05959400 2 Bolt-Hex .38-16 x .75 Grade 5 19 07023900 1 Plug-Pipe .50 Square Head Unﬁnished Steel 20 07024000 1 Elbow .50 x 90 Straight Unﬁnished 21 018030 1 Gasket 22 042976 1 Retainer, Axle Bearing 23 050743 1 Bearing Ball 1.25 x 2.25 x .50 24 018812 1 Ring-Retaining-External 2.49 x .078 25 05960000 4 Bolt-Hex .50-13 x 3.25 Grade 5 26 051096 1 Seal 1.25 x 2.25 x .50 27 08702700 1 Gasket, Cover Plate 28 06529600 6 Nut-Locking-Center .38-16 29 018027 1 Gasket-Transmission Cover

PJ0181

NUMBER THIRTEEN - TRANSMISSION COVER ASSEMBLY

Model 987070, 071, 072

Item Part No. Qty. Description

1 05960000 4 Bolt-Hex .50-13X3.25 Grade 5

2 051096 1 Seal 1.25 x 2.25 x .50

3 018812 1 Ring-Retaining-External 2.49 x .078

4 050473 1 Bearing-Ball 1.25 x 2.25 x .50 Sealed

5 046061 1 Axle Bearing Retainer

6 018030 1 Gasket

7 050117 1 Assembly, Transmission Cover

8 070238 1 Plug-Pipe .38 Suare Head Unﬁnished Steel

9 05963300 2 Bolt-Hex .38-16 x 2.00 Grade 5 10 018089 2 Pin-Dowel .38 x .63 11 05962900 2 Bolt-Hex .38-16 x 2.25 Grade 5 12 05957900 4 Bolt-Hex .38-16 x 1.50 Grade 5

PJ0190

+ 33 hidden pages

Gravely 987072, 987071, 987070 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

NUMBER SIX SHAFT - BRAKE / SLIDING GEAR

NUMBER SEVEN AND EIGHT SHAFTS

NUMBER NINE SHAFT - PTO CLUTCH

NUMBER TEN AND ELEVEN SHAFTS

NUMBER TWELVE - TRANSMISSION CASE ASSEMBLY

NUMBER THIRTEEN - TRANSMISSION COVER ASSEMBLY