John Deere 318 - Manual (Page 145)

3. Install new pitman shaft and worm shaft seals into
gearbox housing using drivers from JDG457 Steering
Gear Service Set.
4. Apply multipurpose grease to lip of seals.
Pitman Shaft Seal
Worm Shaft Seal
M34161
-UN
-08NOV89
M34158
-UN
-08NOV89
IMPORTANT: Install ball nut onto worm shaft as
shown. An improperly installed ball nut
could cause gear damage or steering
lockup.
5. Assemble ball nut and worm shaft (B) with narrow end
of ball nut teeth up (A) and worm shaft at the left.
M33988
-UN
-03OCT89
MX,15906005,33 -19-01MAR95
MX,15906005,34 -19-01MAR95
Steering—316/Gearbox
TM1590 (17MAY95)
60-05-13
316, 318 & 420 Lawn and Garden Tractors
020895
60
05
13