John Deere 318 User Manual

Page 323

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2c

Starter Test—
For Machines:
316 (SN 362984— )
318 (SN 364138— )
420 (SN 360010— )

PTO switch OFF.

Key switch OFF.

Hydrostatic lever in
N/STOP position.

Park brake engaged.

Disconnect spark plug
wires from spark plugs
and ground to engine
block.

M77929 -UN-17JAN95

Connect one end of a
jumper wire to terminal
(A) on the starter
solenoid, then briefly
touch other end of
jumper to battery cable
terminal (B).

LISTEN: Starter must
operate.

STARTER OPERATES:
GO TO

2e

STARTER DOESN’T
OPERATE: GO TO

2d

2d

Starter Solenoid
Test—For
Machines:
316 (SN 362984— )
318 (SN 364138— )
420 (SN 360010— )

PTO switch OFF.

Key switch OFF.

Hydrostatic lever in
N/STOP position.

Park brake engaged.

Spark plug wires
disconnected and
grounded.

M77930 -UN-17JAN95

Briefly jump between
starter terminal (A) and
battery cable terminal
(B), located on the
starter solenoid,

LISTEN: Starter must
operate.

STARTER OPERATES:
Replace solenoid, then
GO TO

, Group 05.

STARTER DOESN’T
OPERATE: Check
battery and starter
wiring connections, then
GO TO

Æ

, Group 25.

2e

Starter Circuit
Test at Key Switch

PTO switch OFF.

Hydrostatic lever in
N/STOP position.

NOTE: Engaged park
brake required on
machines:
316 (S.N. 596121— )
318 (S.N. 600305— )
420 (S.N. 595881— )

Engage park brake.

M37167 -UN-25JAN90

Turn key switch to RUN
position.

Check for voltage at
terminal (A) on back of
key switch (purple and
purple/black wires).

VOLTAGE: Replace
key switch, then GO
TO

, Group 05.

NO VOLTAGE:
Early machines, GO TO

2g

Later machines, GO TO

2f

MX,159024025,32-19-16MAY95

MX,159024025,33-19-16MAY95

MX,159024025,34-19-16MAY95

Electrical System Diagnosis/Starting Circuit Tests

TM1590 (17MAY95)

240-20-11

316, 318 & 420 Lawn and Garden Tractors

020895

240

20

11

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This manual is related to the following products:

316, 420