P G . 1 4
Pacbrake is a registered trademark of Pacbrake Co.
INLINE MOUNT - FORD 6.0L
L5501
14
Testing The System
Before starting the vehicle, ensure the Pacbrake ON/OFF switch is in the OFF position. Start the engine and allow to idle.
The Pacbrake air compressor should start to pump air and will pump for approximately 2 minutes until maximum air pressure
is acheived within the tank. The Pacbrake Control Unit will cycle the exhaust brake ON and then OFF 3 times to prevent carbon
build-up within the exhaust brake. The Pacbrake Control Unit monitors the following vehicle systems status and the exhaust
brake will not apply unless these parameters are met:
Activation Parameters For Manual Transmission Vehicles:
- engine RPM must be above 1200
- accelerator position must be at zero throttle
- vehicle speed must be above 19 MPH (30 KM/H)
- exhaust brake swtich must be in the ON position
Road test the vehicle ensuring all the activation parameters are met. With the Pacbrake switch ON, the exhaust brake should
apply then release when either the minimum road speed of 16 MPH (25 KM/H) is achieved or the engine RPM goes below 900
RPM or the accelerator is depressed.
Activation Parameters For Automatic Transmission Vehicles:
There are two options for torque converter engagement based upon vehicle speed. The controller is pre-programmed with both
speed options, and comes defaulted to the low speed setting. To change the mode, the Pacbrake switch and ignition must be in
the OFF position. Then, turn the ignition to ON, wait for the compressor to turn OFF, then the exhaust brake should cycle 3 times
performing it’s anti-foul cycle. Next, cycle the Pacbrake ON/OFF switch to ON, OFF, ON, OFF, ON and OFF with no pauses
longer than 1 second. This will change the mode. The exhaust brake should now cycle either 4 or 5 times. Count the number of
times - this will confirm the mode that has been selected (see below). Once the Pacbrake module has cycled the brake to con
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firm the torque converter engagement setting, it will then cycle 3 times at startup to perform the anti-foul cycle.
4 cycles = higher speed torque converter engagement setting is loaded
5 cycles = lower speed torque converter engagement setting is loaded
Road test the vehicle, ensuring all the activation parameters are met. With the Pacbrake switched to ON, the exhaust brake
should apply and then release when either the minimum road speed of 16 MPH (25 KM/H) is acheived or the engine RPM
goes below 750 RPM or the accelerator is depressed.
Low Speed Mode:
- engine RPM must be above 1200
- accelerator position must be at zero throttle
- in “tow/haul” mode the vehicle speed must be above 22 MPH (35 KM/H)
- in “overdrive” mode the vehicle speed must be above 22 MPH (35 KM/H)
- exhaust brake swtich must be in the ON position
Higher Speed Mode:
- engine RPM must be above 1200
- accelerator position must be at zero throttle
- in “tow/haul” mode the vehicle speed must be above 31 MPH (50 KM/H)
- in “overdrive” mode the vehicle speed must be above 31 MPH (50 KM/H)
- exhaust brake swtich must be in the ON position
Congratulations, you have completed the installation
WARNING - Do not operate the vehicle with the Pacbrake control unit removed or disconnected. If it is necessary, jumper wires
must be installed. Vehicles equipped with manual shift transmissions ADD jumper wires between Pins 1 & 2 and Pins 7 &8.
Vehicles with automatic transmissions ADD jumper wires between Pin 19 & 20, Pins 5 & 6, and Pins 7 & 8.
