This section provides instruction for
trouble shooting, checkout procedures
and remedial action to be taken by
operator and maintenance personnel.
When trouble or malfunction occurs
during normal operation, the following
sequence will help isolate the fault and
permit a quick repair.
a) Repeat the steps that caused the
trouble to occur, unless further
damage will be caused.
b) Read the appropriate descriptive
paragraphs in both Service and
Engine Operator's Manuals, to learn
how the equipment functions and how
it is powered.
c) Refer to troubleshooting chart,
equipment section and specific
trouble listed in this group. Reference
to the Parts List Manual may be of
help in determination of component
function and assembly.
d) If the defective equipment is part of
the electrical system, also refer to
e) Perform the checkout procedure and
remedial actions listed in the
troubleshooting chart to isolate the
problem. When the repair or
replacement procedure is not obvious,
refer to component overhaul
NOTE: Isolate and diagnose the problem as
completely as possible before starting repair action or take-apart.
NOTE: For all main transmission trouble shooting, contact your Allison Transmission
Dealer for Allison Automatic Transmission service.