John Deere 318 - Manual (Page 324)

2f
Starter Circuit
Test at Brake
Switch—For
Machines:
316 (SN 596121— )
318 (SN 600305— )
420 (SN 595881— )
PTO switch OFF.
Hydrostatic lever in
N/STOP position.
Park brake engaged.
Turn key switch to RUN
position.
M77931 -UN-17JAN95
Check for voltage at
purple wire terminal (A).
If there is voltage at
(A), purple wire
between key switch and
brake switch is open.
If no voltage at (A),
check for voltage at
purple/white wire
terminal (B).
VOLTAGE: Replace
switch, then GO TO
‘
,
Group 05.
NO VOLTAGE: GO TO
2g
2g
Starter Circuit
Test at
Transmission
Neutral Start
Switch
M36623 -UN-25JAN90
PTO switch OFF.
Hydrostatic lever in N/STOP position.
Turn key switch to RUN position.
Check for voltage at terminal (A).
For machines: 316 (S.N. —596120) 318
(S.N. —600304) 420 (S.N. —595880), voltage
at (A) indicates the purple wire between key
switch and trans. neutral switch is open.
For machines: 316 (S.N. 596121— ) 318 (S.N.
600305— ) 420 (S.N. 595881— ), voltage at
(A) indicates purple/white wire between brake
switch and trans. neutral switch is open.
If no voltage at (A), check for voltage at terminal
(B).
VOLTAGE: GO TO
2h
NO VOLTAGE: GO TO
2i
MX,159024025,35-19-16MAY95
MX,159024025,36-19-16MAY95
Electrical System Diagnosis/Starting Circuit Tests
TM1590 (17MAY95)
240-20-12
316, 318 & 420 Lawn and Garden Tractors
020895
240
20
12