John Deere 318 - Manual (Page 147)

IMPORTANT: Tape splined end of worm shaft to
prevent seal damage during shaft
installation.
12. Apply tape around splined end of worm shaft.
13. Install ball nut (A) and worm shaft (B) with bearing
cone, into gearbox housing. Remove tape.
M33978
-UN
-03OCT89
14. Install new bearing cup in worm bearing adjuster, if
removed, using a driver set.
15. Pack lower worm bearing cone with multipurpose
grease.
16. Install lower worm bearing cone into worm bearing
adjuster with large O.D. facing away from threaded end
of adjuster.
17. Install retainer until flush with outside surface of
adjuster, using a plastic hammer.
18. Apply a coat of a lithium base grease to threads of
worm bearing adjuster.
M33996
-UN
-03OCT89
19. Install worm bearing adjuster (A).
IMPORTANT: Ball nut must be centered during
assembly. If not, the steering will only
turn fully in one direction and damage
can be done by bottoming the worm
drive against the ball nut.
20. Center ball nut (B) in gearbox housing as shown.
21. Fill gearbox with approximately 312 g (11 oz) of
multipurpose grease.
M33997
-UN
-03OCT89
MX,15906005,38 -19-01MAR95
MX,15906005,39 -19-01MAR95
MX,15906005,40 -19-01MAR95
Steering—316/Gearbox
TM1590 (17MAY95)
60-05-15
316, 318 & 420 Lawn and Garden Tractors
020895
60
05
15