Douglas Dynamics 29070-1 Bedienungsanleitung

A DIVISION OF DOUGLAS DYNAMICS, LLC

Isolation Module Tester

3-Port Isolation Modules 29070-1 & 29760-1

Operating Instructions

August 15, 2015

Lit. No. 41936, Rev. 00

41000

CAUTION

Read this document before using the Isolation

Module Tester.

Lit. No. 41936, Rev. 00 3 August 15, 2015

41000

SAFETY DEFINITIONS

NOTE: Indicates a situation or action that can lead

to damage to your snowplow and vehicle or other

property. Other useful information can also be

described.

SAFETY PRECAUTIONS

Improper installation and operation could cause

personal injury and/or equipment and property

damage. Read and understand labels these Operating

Instructions before performing isolation module tests.

WARNING

Indicates a potentially hazardous situation

that, if not avoided, could result in death or

serious personal injury.

CAUTION

Indicates a potentially hazardous situation

that, if not avoided, may result in minor or

moderate injury. It may also be used to alert

against unsafe practices.

CONTENTS

SAFETY INFORMATION............................................ 3

OVERVIEW ................................................................. 4

SETUP ........................................................................ 5

OPERATION ...............................................................6

TEST SEQUENCE ..................................................... 7

CODES REFERENCE TABLE.................................... 7

WARNING

Lower the blade when the vehicle is parked.

Temperature changes could change

hydraulic pressure, causing the blade to

drop unexpectedly or damaging hydraulic

components. Failure to do this could result in

serious personal injury.

WARNING

The tester shall keep bystanders clear of the

blade during this test. Do not stand between

vehicle and blade or within 8 feet of a moving

blade. A moving or falling blade could cause

personal injury.

WARNING

To prevent accidental movement of the blade,

always push the ON/OFF button to switch the

control OFF whenever the snowplow is not in

use. The power indicator light will turn OFF.

Lit. No. 41936, Rev. 00 4 August 15, 2015

41000

ISOLATION

MODULE

3-PORT

NOTE: CONTAINS NO

SERVICEABLE PARTS

U.S. Patents 5,420,480 and 7, 400,058

DOUGLAS DYNAMICS, L.L.C.

OVERVIEW

The Isolation Module Tester performs continuity tests

on the 29070-1 and 29760-1 three-port isolation

modules for snowplow lighting systems.

CAUTION

Batteries normally produce explosive gases,

which can cause personal injury. Therefore,

do not allow ames, sparks or lit tobacco

to come near the battery. When charging or

working near a battery, always cover your

face and protect your eyes, and also provide

ventilation.

• Batteries contain sulfuric acid, which burns

skin, eyes and clothing.

• Disconnect the battery before removing or

replacing any electrical components.

FUSES

The snowplow electrical and hydraulic systems

contain several blade-style automotive fuses. If

a problem should occur and fuse replacement is

necessary, the replacement fuse must be of the same

type and amperage rating as the original. Installing a

fuse with a higher rating can damage the system and

could start a re. Fuse Replacement, including fuse

ratings and locations, is located in the Maintenance

section of the Owner's Manual.

PERSONAL SAFETY

• Remove ignition key and put the vehicle in park or

in gear to prevent others from starting the vehicle

during installation or service.

• Wear only snug-tting clothing while working on

your vehicle or snowplow.

• Do not wear jewelry or a necktie, and secure long

hair.

• Wear safety goggles to protect your eyes from

battery acid, gasoline, dirt and dust.

• Avoid touching hot surfaces such as the engine,

radiator, hoses and exhaust pipes.

• Always have a re extinguisher rated BC handy,

for ammable liquids and electrical res.

BATTERY SAFETY

29070-1

Green Label

29760-1

Blue Label

(soft-start)

The tester simulates vehicle and snowplow low/high

beam, left/right turn signal, parking light, and control

power functions but does not simulate any load

conditions.

When the tester detects a continuity failure, the screen

display will identify the module component that is not

functioning. Record that information on your warranty

claim form and RMA tag.

The Isolation Module Tester is protected by internal

fuses. In the event of a short circuit or too much

current being drawn by the isolation module, the tester

will reset itself. There are no user-serviceable parts in

the Isolation Module Tester.

Lit. No. 41936, Rev. 00 5 August 15, 2015

41000

SETUP

The Isolation Module tester comes with a transformer,

for plugging the tester into a 110V AC outlet, and a set

of red and black alligator clips, for powering the tester

from a 12V vehicle battery.

The supplied tester harness is used to connect the

tester to the isolation module.

1. Plug the transformer into a wall receptacle or

connect the alligator clips to the vehicle battery

terminals:

• Red clip to POS (+) battery terminal.

• Black clip to the NEG (–) battery terminal.

When disconnecting, remove the black alligator

clip rst, then the red alligator clip.

Do not plug the green 2-pin connector into the

tester yet.

2. Connect the harness 26-pin connector to the top

of the tester, turning the 2 knobs to secure the

connector.

3. If the isolation module to be tested is installed in a

vehicle, disconnect the harnesses from the A, B,

and C ports of the module.

4. Connect the 10-pin plugs of the tester harness,

labeled A, B, and C, to the corresponding ports on

the isolation module.

Lit. No. 41936, Rev. 00 6 August 15, 2015

41000

OPERATION

The Isolation Module Tester is programmed to run

several test modes. You will select which isolation

module is being tested, and whether the tester will run

one test cycle or three test cycles. More than one test

cycle may be required to identify an intermittent failure.

Test Mode

To Use the Default Test Mode

Default test mode is a single test cycle of the 29070-1

(green label) isolation module.

1. Connect the green 2-pin connector from the

transformer or battery connectors into the top

of the tester. The status LED will ash red, then

green, then turn off. The Start screen will appear.

2. Press and release the START button.

To Select a Test Mode

1. Hold down the START button while connecting

the green 2-pin connector from the transformer or

battery connectors into the top of the tester.

2. The Start screen will show briey, then the display

will cycle through the test mode screens. Release

the START button when the desired screen

appears:

29070-1 module — 1 test cycle

29760-1 soft-start module — 1 test cycle

29070-1 module — 3 test cycles

29760-1 soft-start module — 3 test cycles

(The screens for "Reserved Test" are not active.)

Release button

to select Mode.

29760-1(SS) C=1

DOUGLAS DYNAMICS

ISO MOD TESTER

PRESS START 2 GO

Example

3. Once the START button is released, the status

LED will ash red, then green, then turn off. The

Start screen will display.

Press the START button once to begin the

selected test cycle.

Stopping a Test

To stop a test in process, press the START button. To

restart the same test from the beginning, press the

START button again.

To select a different test mode, unplug the green 2-pin

connector from the tester, then follow steps 1–3 under

"To Select a Test Mode."

Test Results

If no failures were detected during the test cycle the

status LED will ash green. A CYCLE PASS message

will appear in the display.

When the tester detects a continuity failure, the test

cycle will stop and the status LED will ash red. A

FAILED TEST message will appear in the display,

listing which isolation module component failed and

which lighting function is affected.

Record these test results and include that information

on your warranty claim form and RMA tag.

29760-1

soft-start

module 1 test cycle

DOUGLAS DYNAMICS

ISO MOD TESTER

PRESS START 2 GO

< FAILED TEST >

. . . . . IM - K4 . . . . .

VEH L HI BEAM . . .

Example

Vehicle left side high-beam headlamp

Isolation

Module

K4 relay

Lit. No. 41936, Rev. 00 7 August 15, 2015

41000

TEST SEQUENCE

While testing is in process, both the screen display

and the LEDs on the front panel indicate which test is

being performed.

• Accessory Control Power

• Snowplow DRLs On (both L & R turn signals)

29070-1 module only

• Snowplow Left Turn Signal (ash 3 times)

• Snowplow Right Turn Signal (ash 3 times)

• Snowplow DRLs Off (both L& R turn signals)

29070-1 module only

• Snowplow Parking Lights On

• Snowplow Low-Beam Headlamps On

• Snowplow High-Beam Headlamps On

• Vehicle Low-Beam Headlamps On

• Vehicle High-Beam Headlamps On

Display Code Failure Type

IM – K4

LEFT HI BEAM

K4 relay

Snowplow left high-beam

IM – K2

LEFT LO BEAM

K2 relay

Snowplow left low-beam

IM – K3

RIGHT HI BEAM

K3 relay

Snowplow right high-beam

IM – K1

RIGHT LO BEAM

K1 relay

Snowplow right low-beam

IM – Q3

RIGHT TURN

Q3 transistor

Snowplow right turn signal

IM – Q1

LEFT TURN

Q1 transistor

Snowplow left turn signal

IM – Q2

PARKING LIGHT

Q2 transistor

Snowplow parking lights (L&R)

IM – K5

CONTROL POWER

K5 relay

Accessory control power

IM – DRL

DRL MODE

Snowplow DRLs

IM – K4

VEH L HI BEAM

K4 Relay

Vehicle left high-beam

IM – K3

VEH R HI BEAM

K3 Relay

Vehicle right high-beam

IM – K2

VEH L LO BEAM

K2 Relay

Vehicle left low-beam

IM – K1

VEH R LO BEAM

K1 Relay

Vehicle right low-beam

. . . . . . . .

ABORT TEST Test stopped.

. . . . . . . .

FAILURE NOT ID'D

Cause of failure not identied.

Contact Technical Service.

CODES REFERENCE TABLE

Lit. No. 41936, Rev. 00 8 August 15, 2015

41000

The company reserves the right under its product improvement policy to change construction or design details and furnish equipment when

so altered without reference to illustrations or specications used. This equipment manufacturer or the vehicle manufacturer may require or

recommend optional equipment for snow removal. Do not exceed vehicle ratings with a snowplow. The company offers a limited warranty for

all snowplows and accessories. See separately printed page for this important information.

Printed in U.S.A.

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