John Deere 318 User Manual
Page 279

Ò
GOVERNOR
LINKAGE
ADJUSTMENT
M37441 -UN-25JAN90
NOTE: “B-Series”
Engine Shown.
Disconnect throttle rod
(A) from governor arm
(B).
Push throttle rod and
governor arm toward
carburetor until they
stop. Be sure dashpot
spring (if equipped) is
completely compressed.
Install throttle rod into
closest governor arm
hole. If between holes,
install in next hole
away from carburetor.
M37442 -UN-25JAN90
Check governor spring sensitivity.
On side pull governors, (shown), the governor
spring should be in the third hole from governor
arm pivot.
On front pull governors, the governor spring
should be in the second hole from governor arm
pivot.
If necessary, move
governor spring one
hole away from
governor arm pivot to
decrease sensitivity.
AFTER ADJUSTMENT:
GO TO
Ö
and adjust
carburetor.
Õ
DASHPOT
ADJUSTMENT (B43E,
B43G and B48G)
Inspect dashpot for
wear or damage.
Dashpot plunger must
move in and out freely.
M37443 -UN-25JAN90
Push and hold governor
arm away from
carburetor until throttle
stop (A) hits throttle
stop screw (B).
Measure
dashpot-to-governor
arm bracket clearance.
Dashpot clearance
should be 1.3 ± 0.2
mm (0.050 ± 0.010 in.).
Continued on next page
MX,159022010,20-19-05MAY95
Diagnosis, Tests and Adjustments/Dashpot Adjustment (B43E, B43G and B48G)
TM1590 (17MAY95)
220-10-9
316, 318 & 420 Lawn and Garden Tractors
020895
220
10
9