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 description only; they do
not apply to any one type of transmission. 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.
Test your Knowledge (Select the Correct Response)
2.
The automatic transmission of a vehicle matches power and speed to what
factor?
A.
RPM
B.
Maximum torque
C.
Load requirements
D.
Minimum torque required
Summary
In this chapter, you learned how to troubleshoot problems with the clutch systems and
how the automatic transmission works. In addition you learned preventive maintenance
on the automatic transmission, how to troubleshoot it, and basic guidelines on how to
overhaul it. The power flow to the drive wheels is something a construction mechanic
needs to understand to enable you to properly troubleshoot and diagnose equipment.
When you have mastered the knowledge of these systems, you will become a better
CM.
NAVEDTRA 14050A
7-22