John Deere 318 User Manual

Page 169

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IMPORTANT: Valve plate must be installed with

“PORT SIDE” (A) directly opposite (12
o’clock position) from alignment groves
(B) for proper operation. Valve plate
spring slots and springs must be
aligned to prevent spring damage when
installing port manifold.

44. Install valve plate, with “PORT SIDE” up, on isolation
manifold. Turn valve plate to make sure springs are
centered in valve plate spring slots.

45. Apply clean John Deere Low Viscosity HY-GARD



on valve plate.




46. Install three 25 mm (1 in.) springs (F) in recessed
slots (A) of the port manifold.

IMPORTANT: Align grooves (H) in port manifold with

grooves (C) in isolation manifold. Be
careful not to damage springs while
installing port manifold.

47. Install port manifold with springs toward valve plate.
Be sure pins (D) engage alignment holes (G) in port
manifold. Be sure hex drive assembly pin (B) engages
center hole (E) in port manifold.

A—Recessed Slots
B—Hex Drive Assembly Pin
C—Isolation Manifold Grooves
D—Pin (2 used)
E—Port Manifold Center Hole
F—25 mm (1 in.) Spring (3 used
G—Port Manifold Alignment Hole (2 used)
H—Port Manifold Grooves




MX,15906006,50 -19-01MAR95

MX,15906006,51 -19-12MAY95

Steering—318 and 420/Steering Valve

TM1590 (17MAY95)


316, 318 & 420 Lawn and Garden Tractors





This manual is related to the following products:

316, 420