Troy-Bilt 664D, 665B, E666M Operator's Manual page 7

Models 664D & E666M
REF. PART
No. No. DESCRIPTION
MAIN DRIVE SHAFT
1 GW-1714 Bearing, Tapered Roller with Race ....
2 GW-20718 Spur Gear ..........................................
3 GW-9301 Key, 3/16 sq. x 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)..........
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
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.
DRIVE SHAFT, INPUT PINION SHAFT and GEAR ASSEMBLIES
REF. PART
QTY. No. No.
INPUT PINION SHAFT & GEAR ASSEMBLY
1 6 GW-9572
1 7 GW-9944
1
8 1108841
9 1916522
10 GW-1440
11 721-04044
12 1113527
1 13 GW-9953
14 GW-9428
15 GW-9677
16 GW-20791
17 GW-20792
18 GW-9093
19 GW-20799
20 GW-9517
Parts List
DESCRIPTION
Hex Hd. Screw, 5/16-24 x 1-1/8* ......
Washer, Disc Spring (concave
surface faces pulley)......................
Key, 3/16 sq. x 1-1/2 .........................
Transmission Drive Pulley.................
Support Washer ................................
Oil Seal, Input Pinion Shaft................
Retaining Ring (external) ..................
Thrust Washer...................................
Bushing .............................................
Set Screw, 5/16-18 x 3/8*.................
Input Pinion (steel shaft)...................
Input Pinion Gear ..............................
Retaining Ring (external) l.................
Pinion Assy. (Incl. one each Refs. 16,
17 and 18 ...................................... A/R
Retaining Ring (internal) ..................
33
QTY.
1
1
1
1
1
1
1
2
1
1
1
1
1
1