Operating Instructions CAUTION Read this document before testing any snowplows. CAUTION See your sales outlet/Web site for specific vehicle application recommendations. The Kit Selection Guide/Selection List has specific vehicle and snowplow requirements. A DIVISION OR SUBSIDIARY OF DOUGLAS DYNAMICS, L.L.C.
TABLE OF CONTENTS Safety Information Safety Definitions ............................4 Before You Begin ............................4 Fuses ................................. 4 Personal Safety ............................4 Fire and Explosion ............................5 Battery Safety ............................. 5 All Modules Test Preparation ............................6 Isolation Module On-Vehicle Test ....................... 6 4-Port Modules Isolation Module 26400 (White Label) Off-Vehicle Test ................
SAFETY SAFETY DEFINITIONS FUSES The snowplow electrical and hydraulic systems WARNING contain several automotive blade-style fuses. If a Indicates a potentially hazardous situation, problem should occur and fuse replacement is that if not avoided, could result in death or necessary, the replacement fuse must be of the same serious personal injury.
SAFETY FIRE AND EXPLOSION BATTERY SAFETY WARNING CAUTION Batteries normally produce explosive gases Gasoline is highly flammable and gasoline which can cause personal injury. Therefore, do vapor is explosive. Never smoke while working not allow flames, sparks or lit tobacco to come on vehicle.
ISOLATION MODULE TEST PROCEDURE – ALL MODULES TEST PREPARATION ISOLATION MODULE ON-VEHICLE TEST Set Up CAUTION Read this document before testing any Before connecting the Isolation Module Tester to the snowplows. Isolation Module, ensure the Isolation Module Tester switches are in the following positions. •...
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ISOLATION MODULE TEST PROCEDURE – ALL MODULES 3. Turn ON the vehicle's parking lamps. Verify the NOTE: Due to the many DRL systems available, it is vehicle's parking lamps are ON. the responsibility of the installer to fully understand the operation of the system being tested. 4.
ISOLATION MODULE TEST PROCEDURE – 4-PORT MODULES ISOLATION MODULE 26400 (WHITE 2. Place the PARK LAMP switch in the "ON" position. The left and right side tester vehicle LOW BEAM LABEL) OFF-VEHICLE TEST lamps should light. Set-Up 3. Place the HEADLAMP COMMON switch in the POS (+) position and listen for the "click"...
ISOLATION MODULE TEST PROCEDURE – 4-PORT MODULES ISOLATION MODULE 27781 (GREEN 2. Place the PARK LAMP switch in the "ON" position. The left and right side tester vehicle LOW BEAM LABEL) OFF-VEHICLE TEST indicators should light. Set-Up 3. Place the HEADLAMP switch in the "HIGH" position.
ISOLATION MODULE TEST PROCEDURE – 4-PORT MODULES ISOLATION MODULE 26401 (YELLOW 2. Place the PARK LAMP switch in the "ON" position. The left and right side tester vehicle LOW BEAM LABEL) OFF-VEHICLE TEST indicators should light. Set-Up 3. Place the HEADLAMP switch in the "HIGH" position.
ISOLATION MODULE TEST PROCEDURE – 3-PORT MODULES ISOLATION MODULE 29060 (WHITE Test Vehicle Lights LABEL) OFF-VEHICLE TEST 1. Place the Isolation Module Tester POWER switch in the "ON" position. The green POWER indicator Set-Up should light. Before connecting the Isolation Module Tester to the 2.
ISOLATION MODULE TEST PROCEDURE – 3-PORT MODULES ISOLATION MODULE 29070 (GREEN 2. Place the PARK LAMP switch in the "ON" position. The left and right side tester vehicle LOW BEAM LABEL) OFF-VEHICLE TEST indicators should light. Set-Up 3. Place the HEADLAMP switch in the "HIGH" position.
ISOLATION MODULE TEST PROCEDURE – 3-PORT MODULES ISOLATION MODULE 29760 AND 29760-1 2. Place the PARK LAMP switch in the "ON" position. The left and right side tester vehicle LOW BEAM (BLUE LABEL) OFF-VEHICLE TEST lamps should light. Set-Up 3. Place the HEADLAMP switch in the "HIGH" position.
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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 specifications used. This equipment manufacturer or the vehicle manufacturer may require or recom- mend optional equipment for snow removal.
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