Section 5 • Troubleshooting Flow Charts
June 2005
5 - 2
TMZ-34/19
Part No. 52075
About This Section
When a malfunction is discovered, the flow charts
in this section will help a service professional
pinpoint the cause of the problem. To use this
section, basic hand tools and certain pieces of test
equipment are required—voltmeter, ohmmeter,
pressure gauges.
The location of terminals mentioned in this section
can be found on the appropriate electrical or
hydraulic schematics provided in Section 6,
Schematics.
Since various degrees of a particular function
loss may occur, selecting the appropriate flow
chart may be troublesome. When a function will not
operate with the same speed or power as a
machine in good working condition, refer to the
flow chart which most closely describes the
problem.
General Repair Process
TROUBLESHOOTING FLOW CHARTS
Malfunction
discovered
Identify
symptoms
Troubleshoot
Perform
repair
Return to
service
problem
solved
problem
still exists
Inspect
and test
LED Diagnostic Readout
A diagnostic display was incorporated into the side
of the ground controls after serial number
T3402-115.
The diagnostic readout displays numerical codes
that provide information about the machine
operating status and about malfunctions. The
numbers will blink with fault codes and the 4
dashes will remain on during normal operation.
The codes listed in the Fault Code Chart describe
malfunctions and can aid in troubleshooting the
machine by pinpointing the area or component
affected.
800-610-4101
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