Troy-Bilt 664D User Manual

Models 664D & E666M

1

GW-1714

Bearing, Tapered Roller with Race ....

1

2

GW-20718

Spur Gear ..........................................

1

3

GW-9301

Key, 3/16 sq. x 1 ...............................

1

4

GW-20912

Main Drive Shaft (Drive shaft is one-

piece with integral, single-lead,
work-hardened front worm, and
integral, six-lead, work-hardened
rear worm. Also includes pressed-
on GW-1714 and GW-9301)..........

1

5

GW-1224-1

Shim, Rear Bearing Cap, .010" thick

(see Note below) ...........................

A/R

5

GW-1224-2

Shim, same as above, but .030" thick

(see Note)......................................

A/R

5

GW-1224-3

Shim, same as above, but .005" thick

(see Note)......................................

A/R

...

GW-1325C

Shim Set (Incl. two GW-1224-1; two 

1224-2 and one GW-1224-3) ........

A/R

6

GW-9572

Hex Hd. Screw, 5/16-24 x 1-1/8* ......

1

7

GW-9944

Washer, Disc Spring (concave

surface faces pulley)......................

1

8

1108841

Key, 3/16 sq. x 1-1/2 .........................

1

9

1916522

Transmission Drive Pulley.................

1

10

GW-1440

Support Washer ................................

1

11

721-04044

Oil Seal, Input Pinion Shaft................

1

12

1113527

Retaining Ring (external) ..................

1

13

GW-9953

Thrust Washer...................................

2

14

GW-9428

Bushing .............................................

1

15

GW-9677

Set Screw, 5/16-18 x 3/8*.................

1

16

GW-20791

Input Pinion (steel shaft) ...................

1

17

GW-20792

Input Pinion Gear ..............................

1

18

GW-9093

Retaining Ring (external) l.................

1

19

GW-20799

Pinion Assy. (Incl. one each Refs. 16, 

17 and 18 ......................................

A/R

20

GW-9517

Retaining Ring  (internal) ..................

1

NOTE: Shim between drive shaft rear bearing and rear bearing cap to achieve 5-to-10 thousandths of an inch (.005-.010) end play on drive shaft.

A/R - As Required

* Specify GRADE 5 if ordering part locally.