Kenworth — service manual (EN)

K ENWORTH T680 MIRRORS - SERVICE MANUAL FOREWORD Read this manual carefully before operating. For the most recent version of this manual visit: www.lang-mekra.com . If you have any questions, contact technical support at: Telephone: 1-888-MEKRA 4U / Fax: (803) 337 5265 E-mail: quality@lang-mekra.com NOTE : If you have trouble with any portion of this service manual, please call our service line at 803-337-5264 and ask for customer service. Our hours of operation are 9:00 am – 4:00 pm EST, Monday – Friday. These Products may be the subject of Pending U.S. Patent Applications or may be covered by, but not limited to, one or more of the following U.S. Patents or patent applications:

8544151 B2, US 20130043362 A1, US 20130092812 A1, 61/769,838 Kenworth T680 MIRRORS SERVICE MANUAL ©2014 By Lang-Mekra North America LLC 2nd Edition, January 2014. All rights reserved. Any reprinting or unauthorized use without the written permission of Lang-Mekra North America LLC is expressly prohibited. Copyright © Lang Mekra North America 2014 Page 2 of 28 Revised: 03/2014

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K ENWORTH T680 MIRRORS - SERVICE MANUAL TABLE OF CONTENTS 1. Mirror system ......................................................................................................................................................4 2. Carrier glass assembly ....................................................................................................................................5 2.1. Convex mirror glass ....................................................................................................................................5 2.2.

Main mirror glass ........................................................................................................................................6 3. Housing removal and replacement .................................................................................................................8 4. Actuator .............................................................................................................................................................9 5. Bezel replacement ......................................................................................................................................... 10 6.

Electrical component replacement .............................................................................................................. 10 6.1. Control cable replacement ....................................................................................................................... 11 6.2. OAT sensor replacement ......................................................................................................................... 12 6.3. Wires routing ............................................................................................................................................ 14 6.3.1.

OAT wires ........................................................................................................................................ 14 6.3.2. Heaters wires ................................................................................................................................... 15 6.3.3. Actuator wires .................................................................................................................................. 16 6.4. Electrical connector ................................................................................................................................. 17 6.4.1.

Wire pin layout ................................................................................................................................. 17 6.4.2. Removal of wire terminals ............................................................................................................... 18 7. Heaters troubleshooting ............................................................................................................................... 20 6.4.3. Connector installation ...................................................................................................................... 19 7.1.

Analysis.................................................................................................................................................... 20 7.2. Voltage at heater terminals ...................................................................................................................... 21 7.3. Heater foil checking ................................................................................................................................. 21 7.4. Truck connector checking ........................................................................................................................ 21 8.

Remote troubleshooting ............................................................................................................................... 22 8.1. Analysis.................................................................................................................................................... 22 8.2. Actuator voltage checking........................................................................................................................ 23 8.3. Actuator checking .................................................................................................................................... 23 8.4.

Truck connector checking ........................................................................................................................ 23 9. PDC List .......................................................................................................................................................... 24 9.1. Left Hand PDC ......................................................................................................................................... 25 9.2. Right Hand PDC ...................................................................................................................................... 26 10.

Warranty Coverage ........................................................................................................................................ 27 Copyright © Lang Mekra North America 2014 Page 3 of 28 Revised: 03/2014

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K ENWORTH T680 MIRRORS - SERVICE MANUAL 1. MIRROR SYSTEM Precautions: When removing and installing the mirror system from/to the truck’s door, make sure the mirror is properly supported to avoid damage to the mirror system, truck and personal injury. Removal: 1. With the mirror system in its nominal position, remove the four bolts that secure the mirror system to the truck. 2. Carefully disconnect the truck’s connector from the old/damaged mirror system. Installation: 1. Before inserting the truck’s connector into the replacement mirror connector, inspect the truck’s connector for any damage (defects, corrosion, etc…).

If truck connector appears to be okay, then insert the truck’s connector into the mirror system’s connector; if not then refer to the truck service manual for replacement. 2. Place the new mirror system against the truck’s and secure it to the panel by fastening the four bolts to the specified torque value as specified in the truck service manual. Copyright © Lang Mekra North America 2014 Page 4 of 28 Revised: 03/2014

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K ENWORTH T680 MIRRORS - SERVICE MANUAL 2. CARRIER GLASS ASSEMBLY Warning: Wear protective gloves and safety glasses especially when replacing broken glass 2.1. CONVEX MIRROR GLASS 1 2 3 Removal: 1. Push the main mirror glass inward at the bottom. (The actuator clutch will allow this manual adjustment of a motorized mirror.) This will provide enough clearance in order to lift up on the convex mirror to disengage the tabs from the manual socket plate. 2. With the flat mirror pushed inward, push up on the convex mirror approximately Ѕ” to disengage the tabs on the convex carrier plate from the manual socket plate. 3. The convex mirror can now be removed from the mirror housing. 4.

Disconnect the heating element wires from the heater foil terminals by pulling firmly on the wire connectors to completely free the convex mirror from the mirror assembly. Installation: Install the replacement convex carrier assembly in the reverse operation of it being removed. 5. Inspect the condition of the heating element wires (corrosion, exposed wire, etc…) before inserting the connectors onto the heater foil terminals. If they are in good condition, then insert the connectors. Note: The manual socket plate is fixed to the bezel. The illustrations shown below demonstrate how to carefully remove the glass carrier from the manual socket plate.

Copyright © Lang Mekra North America 2014 Page 5 of 28 Revised: 03/2014 Fixed to bezel

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