Skytrak 6036 Service Manual Bedienungsanleitung PDF herunterladen (Seite 409)

9.57

Model 6036 Legacy

Electrical System

9.10 ENGINE START CIRCUIT

The purpose of the engine start circuit is to energize the

starter solenoid and engage the starter motor to start the

engine. To start the engine, the ignition key switch must

be in the START position, the park brake switch must be

in the ON position and the transmission shift control

switch (travel select lever) must be in the NEUTRAL

(center) position.

When the ignition key switch (Fig. 9-30) is turned to the

START position, and with the transmission in (N)

NEUTRAL, the starting circuit activates the starter relay,

starter solenoid and fuel shut-off solenoid. The fuel shut-

off solenoid opens a valve that supplies fuel to the

injection pump.

9.10.1 Starting Circuit

The starting circuit functions as follows:

1. Current from the battery flows through the positive

(+) battery cable to the starter solenoid.

2. Current then flows to the fuse box, through the main

fuse and to the ignition key switch.

3. When the key switch is turned to the START position

(Fig. 9-30), current flows through contacts in the

ignition switch to the park brake switch.

Figure 9-30 Ignition Key Switch Positions

4. If the park brake is set, current flows through

contacts in the brake switch to the neutral start

circuit.

5. If the transmission select lever is in (N) NEUTRAL,

current flows through the neutral start circuit to

energize the coil of the starter relay. The relay closes

internal contacts that allow current to flow to the

starter solenoid and starter.

6. The starter solenoid engages a gear on the starter

pinion shaft to mesh with the flywheel, and the

starter pinion and gear begin to spin, in turn, rotating

the flywheel, crankshaft and related components

within the engine.

7. When the ignition key switch is initially turned, the

fuel shut-off solenoid opens a valve to supply fuel to

the fuel injection pump. As the starter rotates the

engine components, the fuel injection pump, and

related lines and injectors supply fuel to the

cylinders.

8. When the pistons compress the injected fuel, ignition

occurs, the engine starts and the starter pinion

retracts.

9. As the engine runs, it drives the alternator that

recharges the battery used during the starting cycle.

10. When the ignition key switch is released it returns to

the RUN position where it directs current to the fuse

panel, that in turn distributes electrical current for the

operation of vehicle controls, gauges and other

equipment.

OT0680

OFF

RUN

START

1 2 ... 404 405 406 407 408 409 410 411 412 413 414 ... 459 460

Kommentare zu diesen Handbüchern

Keine Kommentare

Skytrak 6036 Service Manual Bedienungsanleitung Seite 409

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Spezialmaschinen Skytrak 6036 Service Manual