MODELS 643C, 643B & 645A

1 2

3

4

2 5

REF

PART NO.

DESCRIPTION

NO.

 

 

 

 

 

1

GW-9517

Snap Ring

2

GW-1714

Bearing, Tapered Roller (with race)

3

GW-50043

Support Washer, Rear

4

711-04110

Drive Shaft

5

GW-1224-1*

Shim, Rear Bearing Cap, .010" thick

 

GW-1224-2*

Shim, same as above, except .030" thick

 

GW-1224-3*

Shim, same as above, except .005" thick

 

GW-1224-4*

Shim, same as above, except .062" thick

GW-1325C

Shim Set (Incl. the following shims:

 

 

two #1224-1, two 1224-2 & one #1224-4)

 

 

 

* Use as required to obtain between .005” and .015” allowable end-play.

1

 

 

 

2

 

 

 

 

REF

 

PART NO.

DESCRIPTION

 

 

 

 

 

 

 

 

NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

2

 

 

 

1

 

GW-9727

Plug, Transmission Oil Fill

 

 

 

 

 

 

 

2

 

710-04049

Hex Hd. Flange Screw, 5/16-18 x 5/8,Gr. 5

 

 

 

 

 

 

 

 

 

7

 

6

 

 

 

 

3

 

736-0119

Lock Washer, 5/16

 

 

 

 

 

4

 

1918377

Rear Cover, Transmission

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

5

 

1916641

Front Cover, Transmission

 

 

 

 

 

 

 

 

6

 

GW-50032

Gasket, Housing Cover

 

 

 

 

 

 

 

 

7

 

721-04030

Oil Seal, Drive Shaft

 

 

 

 

6

 

 

 

8

 

721-04031

Oil Seal, Wheel Shaft

 

 

 

8

 

 

 

 

9

 

619-04013

Transmission Housing Assembly

 

 

 

 

 

 

 

 

10

 

721-04036

Oil Seal, Tine Shaft

 

 

 

 

 

 

 

 

11

 

736-3008*

Washer, Flat, .344 x .750 x .120

 

 

 

 

 

 

 

 

12

 

718-04008

Rear Bearing Cap

 

 

8

9

 

11*

 

13

 

710-04048

Hex Hd. Flange Screw, 5/16-18 x 1

 

 

 

 

10

 

 

14

 

710-3008

Hex Hd. Flange Screw, 5/16-18 x 3/4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

*Included with transmission when purchased as an assembly only.

 

 

 

 

 

 

13

 

Remove and discard when installing the transmission on tiller.

 

 

 

10

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

26

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Image 26
Troy-Bilt 643D-Tuffy/Bronco, 643B, 645A - Super Bronco manual GW-1224-3