With the major components removed, the
transmission case is ready to be thoroughly cleaned out
and inspected for wear or damage.
All assemblies that have been removed from the
transmission, such as the oil pump, clutch packs, valve
body, servos, etc., should all be disassembled, inspected,
and rebuilt to the manufacturers specifications.
Always replace all seals and gaskets before reassembly.
Look for any worn thrust washers and replace them as
required. Check the condition and proper operation of
all vacuum or electronic devices connected to the unit.
The automotive type of torque converter is usually a
welded unit and can only be flushed out, usually with
solvent, and pressure tested. If this type of torque
converter proves to be the problem, replace it. Because
of size and expense, construction equipment torque
converters are made to be disassembled and repaired.
Remember, the instructions for disassembly given
here are for one type of transmission and only of one
model of that type. The information is only to give you
an idea of the complexities involved in automatic
transmission overhaul, not to make you an expert in this
field. Be sure to check the transmission serial numbers
to ensure you are getting the correct overhaul parts.
Aside from size and weight, construction equipment
automatic transmissions are the same in many respects
as automotive automatic transmissions and only specific
instructions for that particular unit will be different. For
these specific instructions, go to your technical library
and check out the correct repair manual.
Construction Mechanic 1, Naval Education and
Training Program Management Support Activity,
Pensacola, Fla, 1989
General Purpose Vehicle Mechanic, Extension Course
Institute Air University, Gunter Air Force Station,
Montgomery, Ala., 1985
U.S. Army TM 9-2320-289-34, Direct Support and
General Support Maintenance Manual for Truck
Cargo 1-1/4 ton 4 x 4, M1008, Department of the
Army, Washington, D.C., 1983
U.S. Army TM-9-8000, Principles of Automotive
Vehicles, Department of the Army, Washington,
Wheeled Vehicle Clutches, Transmissions, and
Transfers, Army Institute for Professional
Development, Subcourse OD 1005, U.S. Army
Ordnance Center and School, Aberdeen Proving
Ground, Aberdeen, Md., 1986
William H. Crouse, Donald L. Anglin, Automotive
Mechanics, 9th ed., McGraw-Hill Book Division,
New York, 1985