John Deere 318 - Manual (Page 206)

A—Check Valve Plug (2 F—O-Ring (4 used) L—Ball (2 used) P—Cap
used) G—Washers M—Spring (2 used) Q—Screw
B—O-Ring (2 used) H—Spring N—Plug (2 used) R—Spacer
C—Spring (2 used) I—Spacer O—Screw and Washer (4 S—Spring
D—Poppet (2 used) J—Detent used) T—Washer
E—Spools and Body K—Cap
Versions Four and Five
IMPORTANT: Spools and body are matched and
must be replaced as a unit. Spools
must be installed into the same
bores from which they were
removed for proper operation of
each function.
Always use new O-rings. Damaged
or used parts will leak.
NOTE: Note location and position of fittings and
linkages to aid in assembly.
Lubricate all O-rings with petroleum jelly
during assembly.
Inspect all parts for wear or damage. Replace as
necessary.
• Apply clean John Deere Low Viscosity HY-GARD ®
oil on all internal parts during assembly.
• Clean threads in end of spools, detent (J) and
screw (Q) using Clean and Cure Primer. Apply thread
lock and sealer (medium strength) on threads of
detent (J) and screw (Q).
• Apply MPG-2 ® Multi-Purpose Polymer Grease on
springs (H and S) and inside of caps (K and P).
• Tighten detent (J), screw (Q), screw and washers
(O) and plugs (A) to specifications.
TORQUE SPECIFICATIONS
Detent (J), Screw (Q) and
Screw and Washers (O) . . . . . . . . . . . . . . . . . 4 N·m (35 lb-in.)
Plugs (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 N·m (23 lb-ft)
M78841
-UN
-14APR95
MX,15907005,9 -19-20APR95
Hydraulic Control Valve/Disassemble, Inspect and Assemble
TM1590 (17MAY95)
70-05-8
316, 318 & 420 Lawn and Garden Tractors
020895
70
05
8