Banks Power Dodge Trucks: (Diesel ’98 - 02 5.9L Cummins ISB) Speed Control- Banks SmartLock (used with non-CBC-equipped Banks Brake) - Manual (Page 11)

Smartlock Trans Brake
Function
The Smartlock Trans Brake
uses the OEM transmission’s
capability of locking the
torque converter and raising
transmission line pressure
to optimize the functionality
of the Banks Brake exhaust
brake system.
To allow 100% of the
available retarding force to
be transferred to the drive
wheels, the Smartlock Trans
Brake interrupts the torque
converter lockup command
from the vehicle’s PCM and
allows the torque converter to
remain locked under dropped
throttle conditions. The OEM
transmission will normally
unlock the converter under
these conditions. The torque
converter lockup command
will remain in effect until
approximately 30 mph.
There are two operating
conditions that will require
light throttle pressure to
engage the torque converter
clutch. These are:
(1) Activating the exhaust
brake switch under dropped
throttle and (2) Re-locking
the torque converter after
an overdrive to 3rd gear
downshift. Under these
conditions, simply apply light
throttle pressure until the
vehicle’s computer engages
the lockup clutch (indicated
by a slight drop in engine rpm)
and release the accelerator
pedal. Clutch engagement
should remain in effect until
approximately 30 mph. To further optimize
transmission function under
exhaust braking conditions,
the Smartlock Trans Brake
will pneumatically actuate
the throttle valve lever under
dropped throttle conditions
to increase transmission line
pressure.
NOTE: The Smartlock System
is designed to compliment the
function of the Banks Brake.
It is not designed or intended
for use under acceleration as
a means to hold the torque
converter locked or raise
transmission line pressure.
This device does not increase
the torque capacity of the
vehicle’s transmission under
acceleration.
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