Banks Power Dodge Trucks: (Diesel ’03 - 07 5.9L Cummins) Speed Control- Banks SmartLock '03-Early 04 User Manual

Page 11

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SMaRTLOCK TRaNS

BRaKE FUNCTIONaL

DESCRIPTION

COMPaRED

TO FaCTORY

TRaNSMISSION

OEM Transmission Function for
Line Pressure Boost
The Dodge transmission includes a
throttle valve that is actuated by a
mechanical lever. An interconnect
linkage between the throttle valve
and accelerator pedal allows the
transmission line pressure to be
controlled as a function of accelerator
pedal position. As pedal position
opening increases, transmission line
pressure will increase.

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 causes the torque converter
to remain locked under conditions
that the PcM would otherwise unlock
the torque converter. The torque
converter lockup command will
remain in effect until engine speed of
approximately 1200 rpm.

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 25 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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