John Deere 318 - Manual (Page 283)

NOT OK: GO TO 1$
1$
OIL PRESSURE
REGULATING
VALVE CHECK
Remove air cleaner
base.
Move air cleaner
bracket until oil
pressure regulating
valve cap screw can be
removed.
M37435 -UN-31JAN90
Measure cap screw (A) thread length.
Remove oil pressure regulating valve (B). Inspect
spring (C) for weak or broken coils. Inspect valve
and valve seat for stuck condition, metal
particles, wear or damage.
SPECIFICATIONS
Cap Screw Thread Length . . . . . . 22 mm (0.875 in.)
Spring Free Length . . . . . . . . . . . . . . 25 mm (1 in.)
Spring Test Length
at 12 N (2.6 lbs force) . . . . . . . . . 13 mm (0.500 in.)
NOT OK: Replace parts
as necessary.
1%
THROTTLE LEVER
ADJUSTMENT
M49159 -UN-20DEC89
Tighten or loosen nut (A) until throttle lever
moves from slow to fast idle with a slight drag.
Replace friction washers (B) if necessary.
Throttle lever must hold in all positions.
MX,159022010,30-19-05MAY95
MX,159022010,28-19-05MAY95
MX,159022010,31-19-05MAY95
Diagnosis, Tests and Adjustments/Throttle Lever Adjustment
TM1590 (17MAY95)
220-10-13
316, 318 & 420 Lawn and Garden Tractors
020895
220
10
13