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2 neutral start switch, 3 fuel run solenoid – SkyTrak 6036 Service Manual User Manual

Page 229

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Section 10.

Electrical System

Model 6036 S/N 9B0499 and Before

10-35

3.

Replace the switch if it fails the tests in step 2.

e.

Installation

1.

Connect the wires as they were tagged during
switch removal.

2.

Position the switch from under the panel.

3.

Install hex nut.

4.

Connect negative (–) cable (2, Fig. 10.38) to
the batteries.

5.

Install lower panel (7, Fig. 10.40).

1.

Neutral Start Switch

2.

Switch Actuating Pin

3.

Control Valve Housing Assembly

4.

Forward, Neutral and Reverse Valve Spool

5.

Oil Seal

6.

Valve Spool Stop

Fig. 10.41 Neutral Start Switch

10.7.2

Neutral Start Switch

The neutral start switch, Fig. 10.41, prevents the
engine from being started with the transmission in
forward or reverse.

The switch is located on the transmission control
valve assembly. The switch is normally open and
is closed when a switch actuating pin presses a
spring-loaded ball in the neutral start switch.

Test the neutral start circuit as follows:

• Starter MUST NOT operate with travel

select lever in FORWARD or REVERSE
positions.

• Starter MUST NOT operate when park lock

is DISENGAGED.

• Starter MUST operate with travel select

lever in NEUTRAL position.

1

2

3

4

5

6

7

8

Fig. 10.42 Fuel Run Solenoid, Coolant Heater and

Low Oil Pressure Sender

1.

Fuel Injection Pump

2.

Fuel Run Solenoid

3.

Plunger

4.

Spring

5.

O-ring

6.

Solenoid

7.

Engine Coolant Heater

8.

Low Oil Pressure Sender

2

NEUTRAL START

SWITCH

HYDRAULIC

DECLUTCH

SWITCH ACTUATING PIN

MA1231

MA1241

If the starter fails to rotate the engine with the travel
select lever in NEUTRAL and the ignition key in the
START:

1.

Check for problems in the shift lever linkage.

2.

Check the neutral start switch, it may not be
closing.

3.

Remove the switch from the control valve
assembly and check the actuator pin in the
control valve assembly for free movement.

4.

Make a continuity check across the terminals
of the switch with the actuator ball manually
depressed. If circuit is open replace the neutral
start switch.

10.7.3

Fuel Run Solenoid

The fuel run solenoid valve (2, Fig. 10.42) lets fuel
enter the injection pump when the ignition key is
turned to START or RUN.