Lull 944E-42 Service Manual Bedienungsanleitung PDF herunterladen (Seite 194)

Electrical System

9-36

944E-42

Threaded Mounting Hole

Position the brake switch so the Stabil-TRAK

“Locked” Mode indicator comes ON at the

150 ±50 psi (10,3 ±3,4 bar) brake pressure. If the

brake switch needs to be adjusted, remove the wire

leads from the switch, loosen the locknut from the top

of the switch mounting bracket and thread the switch

in or out until you hear an audible click.

9. Repeat steps 6 through 8 until the Stabil-TRAK

“Slow Pivot” Mode indicator comes ON at the

150 ±50 psi (10,3 ±3,4 bar) brake pressure.

10. After the required pressure is achieved, use a

wrench and fully tighten the locknut against the

service brake valve mounting plate.

In order to test the switch for proper operation, the boom

must be below the 40° position, the parking brake switch

must be in the ON position. Proper operation of the switch

will activate the Stabil-TRAK “Slow Pivot”

Mode indicator (1). If the Stabil-TRAK indicator does not

activate when all conditions are met, the sensor must be

adjusted. Refer to Section 9.11.11, “Boom Angle

Sensor.”

11. Shut off the engine.

12. Remove blocking from front tires.

13. Remove the pressure gauge.

14. Replace lower access panel (15).

9.12 DASH SWITCHES

Note: For information on the front windshield wiper, rear

window wiper and washer systems, refer to Section 9.9,

“Window Wiper/Washer Windshield Wiper Motor.”

9.12.1 Dash Switches

a. Switch Removal

1. Park the machine on a firm, level surface, level the

machine, fully retract the boom, lower the boom,

place the transmission control lever in

(N) NEUTRAL, engage the park brake and shut the

engine OFF.

2. Place a Do Not Operate Tag on both the ignition key

switch and the steering wheel, stating that the

machine should not be operated.

3. Open the engine cover. Allow the system fluids to

cool.

4. Properly disconnect the batteries.

5. Carefully pry the switch and wiring out of the

mounting hole.

6. Label and disconnect the wiring from the switch.

Remove the switch.

b. Disassembly

DO NOT disassemble the dash switch. Replace a

defective switch with a new part.

c. Inspection and Replacement

Inspect the switch terminals for continuity and shorting in

both the engaged and disengaged positions. Replace a

defective or faulty switch with a new switch.

d. Switch Installation

1. Connect the switch to the cab harness connector.

2. Position the switch over the rectangular switch bezel

and snap into position.

3. Properly connect the batteries.

4. Start the machine and check the replaced switch for

proper function.

5. Close and secure the rear door.

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Lull 944E-42 Service Manual Bedienungsanleitung Seite 194

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