John Deere 318 User Manual
NOTE: Four-port not shown. Unit is similar to early
7. Remove seal ring and O-rings (A).
8. Inspect port cover for scratches on machined surfaces
or damage to fittings. Replace cover if damaged.
9. Four-port and early five-port; Remove plug (A), O-ring
(B) and check ball (C).
Steering—318 and 420/Steering Valve
316, 318 & 420 Lawn and Garden Tractors