John Deere 318 - Manual (Page 74)

18. Inspect bearing plates. Bearing plates should be flat,
free of all nicks, burrs, scratches and erosion around the
ports. The bronze metal should show no scoring,
smearing or be discolored.
NOTE: Scoring is indicated by fine scratches or grooves
cut into the plate.
When these scratches can be detected by feel,
finger nail or lead pencil, the plate should be
replaced.
Some models may have a narrow slot (A) rather
then a wide slot (B). While others may NOT have
slots at all.
M49510
-UN
-20DEC89
M49511
-UN
-20DEC89
19. Inspect both bearings in center section, replace if
necessary.
20. Install center section in bench fixture and remove
bearing using a 2-jaw puller and a slide hammer.
M36109
-UN
-29AUG88
DISASSEMBLE PUMP AND MOTOR
IMPORTANT: Do not nick or scratch lapped surface
of cylinder blocks.
Piston-to-Bore relationship need not be
maintained; keep pump and motor
components separate, they are not
interchangeable.
1. Remove motor and pump cylinder blocks.
M36110
-UN
-29AUG88
MX,15905005,20 -19-23FEB95
5M3,5005K,X -19-18DEC87
MX,15905005,21 -19-23FEB95
Transmission/Disassemble
TM1590 (17MAY95)
50-05-14
316, 318 & 420 Lawn and Garden Tractors
020895
50
05
14