John Deere 318 - Manual (Page 108)

ASSEMBLE DIFFERENTIAL
NOTE: This assembly procedure is for the One-Speed
Differential (316 and 318) and the Two-Speed
Differential with Differential Lock (420). The
differences are noted.
Lubricate all seals with petroleum jelly during
assembly.
Early models have FLAT thrust washers. Later
models have TABBED thrust washers. All service
or replacement thrust washers will have the tabs.
IMPORTANT: It is recommended to replace the early
model (flat) thrust washers with the
later model (tabbed) thrust washers.
The early model washers may spin with
their respective shafts, causing wear to
case bearing surfaces.
Always use new seals. Damaged or
used parts will leak.
1. Put clean John Deere Low Viscosity HY-GARD ® oil or
an equivalent on all internal parts during assembly.
2. Put needle bearing (A) between two flat thrust
washers (B). Put assembly on case countershaft bearing
surface (C).
3. Put small tabbed thrust washer on intermediate shaft
bearing surface with tab (D) pointing down between
reinforcement ribs (E).
4. Put large tabbed thrust washer on output shaft
bearing surface with tab (F) pointing down between
reinforcement ribs (G).
M74075
-UN
-24FEB95
MX,15905015,18 -19-23FEB95
Differential/Assemble
TM1590 (17MAY95)
50-15-12
316, 318 & 420 Lawn and Garden Tractors
020895
50
15
12