Douglas Dynamics Western 26470-2 Manual de instrucciones - Página 8

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ISOLATION MODULE TEST PROCEDURE – 4-PORT MODULES

ISOLATION MODULE 26400 (WHITE

LABEL) OFF-VEHICLE TEST

Set-Up

Before connecting the Isolation Module Tester to the

Isolation Module, ensure the Isolation Module Tester

switches are in the following positions.

Isolation Module Tester Switch

POWER

PARK LAMPS

HEADLAMPS

PLOW ATTACHED

IGNITION SWITCH

HEADLAMP COMMON

HIGH BEAM #2

DEDICATED DRL BULB SYSTEM

Connection

Connect the Isolation Module Tester to the Isolation

Module as follows:

1. Connect Isolation Module Tester cable 1 to

Isolation Module connector 1.

2. Connect Isolation Module Tester cable 2 to

Isolation Module connector 2.

3. Connect Isolation Module Tester cable 3 to

Isolation Module connector 3.

4. Connect Isolation Module Tester cable 4 to

Isolation Module connector 4.

5. Connect the Isolation Module Tester power cable

to a 12V power source by attaching the red

alligator clip to POSITIVE (+) and the black

alligator clip to NEGATIVE (–).

Test Vehicle Lights

1. Place the Isolation Module Tester POWER switch

in the "ON" position. The green POWER indicator

should light.

Lit. No. 26473, Rev. 03

2. Place the PARK LAMP switch in the "ON" position.

The left and right side tester vehicle LOW BEAM

lamps should light.

3. Place the HEADLAMP COMMON switch in the

POS (+) position and listen for the "click" of the

configuration relay inside the Isolation Module

Tester. The LOW BEAM indicator flickers as the

relay changes state. Cycle the switch several

times to verify the relay is functioning properly.

Position

Return the switch to the NEG (–) position.

OFF

4. Place the HEADLAMP switch in the "HIGH"

LOW

position. The tester vehicle HIGH BEAM indicators

should light.

OFF

5. Place the HIGH BEAM #2 switch in the "ON"

NEG (–)

position. The tester vehicle HIGH BEAM and

OFF

HIGH BEAM #2 indicators should light. Release

OFF

the switch and only the HIGH BEAM indicators

should remain ON.

Test Snowplow Lights

1. Place the PLOW ATTACHED switch in the "ON"

position. The green PLOW ATTACHED indicator

should light and both plow HIGH BEAM indicators

and the plow PARK LIGHTS indicator should light.

2. Place the HEADLAMP switch in the "LOW"

position. The plow LOW BEAM indicators and

PARK LIGHTS should light.

3. Place the IGNITION SWITCH in the "ON" position.

The green IGNITION SWITCH and CONTROL

POWER indicators should light.

4. Press and hold the TURN SIGNAL switch in the

"LEFT" position. The plow left TURN SIGNAL

indicator should light. Release the switch.

5. Press and hold the TURN SIGNAL switch in the

"RIGHT" position. The plow right TURN SIGNAL

indicator should light. Release the switch.

The Isolation Module Test is complete. Turn Isolation

Module Tester OFF and disconnect Isolation Module.

Disconnect Isolation Module Tester from power source.

November 1, 2007