El Impacto Social Y Economico De Los Desastres Naturales

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Models
760/760A/765




























The Models 760/760A/765 Jake Brake® engine retarders are designed and approved for use on Detroit Diesel® Series 60® engines. For specific engine application information, see page 4 of this manual. Information in this manual wascurrent at the time of printing and is subject to change without notice or liability.

Jacobs Service Letters should be consulted for additional applications and updated information.
Table of Contents Safety Precautions

Section 1: Introduction .................................................. 3 - 4
Housing Identification............................................................. 3
Engine Identification ................................................................ 3
Special Tools .............................................................................. 3
Recommended Torque Values ............................................. 3
Engine Covers ............................................................................ 3
Application and AdjustmentInformation ........................... 4

Section 2A: Engine Preparation
Series 60 Engines with DDEC II .................................... 5 - 6
Undercover Wire Harness Installation ................................. 5

Section 2B: Engine Preparation
Series 60 Engines with DDEC III ................................... 7 - 8
Undercover Wire Harness Installation (Retrofit)............... 7

Section 3: Brake Housing Installation ..................... 9 - 11
Slave Piston Adjustment ...................................................... 10

Section 4A: Control System
Installation Series 60 Engines with DDEC II ......... 11 - 16
Clutch Switch .......................................................................... 11
Dash Switch, Custom Control............................................ 12
Control Module ...................................................................... 12
Wiring Diagrams ............................................................. 13 - 14
Wire Harness ........................................................................... 15
Harness.................................................................................... 15
Undercover Wiring ................................................................. 16
Engine Brake/WABCO ABS Interface with DDEC II ...... 16

Section 4B: Control System Installation
Series 60 Engines with DDEC III .............................. 16 - 19
Manual and Allison Automatic Transmissions ............... 16
Dash Switch............................................................................ 16
Wiring Diagram ...................................................................... 17
Undercover Wiring ................................................................. 18
Allison World Transmission Wiring .................................... 18
DDEC III Wiring....................................................................... 18
Wiring Diagrams (DDEC III and Allison) .......................... 19

Section 5: Engine Brake Operation Check ............ 20 - 21
Rocker Cover Installation ..................................................... 20

Section 6: Engine Brake Maintenance ................... 22 - 31
Theory of Operation ..............................................................22
Exhaust Blowdown ............................................................... 22
Control Valve .......................................................................... 24
Slave Piston Adjusting Screw
(Reset Screw/POWER-LASH® Assembly) ........................ 25
Solenoid Valve ........................................................................ 25
Accumulator...