John Deere 318 User Manual
Page 338
Ò
TRANSMISSION
NEUTRAL START
SAFETY SWITCH
TEST
Key switch OFF.
Put hydrostatic lever in
REVERSE position.
M45195 -UN-08JAN90
With switch arm (A)
fully released, check for
continuity across
terminals (B).
CONTINUITY: Replace
and adjust switch.
NO CONTINUITY: Push
switch arm (A) fully in.
Check for continuity
across terminals (B)
again.
NO CONTINUITY:
Replace and adjust
switch.
CONTINUITY: Adjust
switch if necessary.
IMPORTANT: After
tightening nut (C),
make sure hydro lever
does not push switch
arm (A) against
switch body,
otherwise, damage to
switch could occur.
Put hydrostatic lever in
N/STOP position,
loosen adjusting nut (C)
and slide switch toward
hydrostatic lever until
switch “clicks” (contacts
just close), then tighten
nut.
AFTER REPLACING
AND/OR ADJUSTING
SWITCH: GO TO
‘
and
Ò
, Group 05.
Õ
PTO NEUTRAL
START SAFETY
SWITCH TEST
Turn key switch to RUN
position.
Move PTO switch to
ON position.
M36648 -UN-17JAN95
Check for voltage at
both purple leads (A) at
PTO switch.
VOLTAGE AT BOTH
LEADS: Replace
switch, then GO TO
Õ
,
Group 05.
Ú
SEAT SWITCH TEST
FOR PTO TIME
DELAY
Key switch OFF.
M37289 -UN-25JAN90
Check the black leads
(A) of the TDC 2-pin
connector for good
ground.
GOOD GROUND:
Replace TDC module,
then GO TO
;
, Group
05.
POOR GROUND:
Clean and tighten all
ground connections as
needed, then GO TO
Ú
, Group 05.
MX,159024025,72-19-16MAY95
MX,159024025,73-19-16MAY95
MX,159024025,74-19-16MAY95
Electrical System Diagnosis/Seat Switch Test For PTO Time Delay
TM1590 (17MAY95)
240-20-26
316, 318 & 420 Lawn and Garden Tractors
020895
240
20
26