37
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
TROUBlESHOOTING
Troubleshooting aids include:
• TROUBLESHOOTING MATRIX on page 38
• LIST OF EFFECTS WITH DESCRIPTIONS on
• PROBABLE CAUSES WITH RECOMMENDED FIX on
Apply each aid as needed according to the procedure.
PRO Controller
Wheel valve
(two per axle)
Delivery Line
EMERG/
Supply
Supply
Tank
Regulator Flowswitch
EXH
EXH
Closes 10 psi
above target
Figure 45:
TIREMAAX
®
air flow schematic
IMPORTANT:
In the event of a severe leak,
TIREMAAX
®
is designed to isolate tires.
Wheel valves (Figure 45) and other
check valves will close and not allow
air to completely exhaust from tires
.
This
allows the driver to cautiously
transport trailer
to the nearest service
center.
NOTICE: Air additives or antifreeze containing
alcohol will degrade the performance
rubber components (TMC RP 730).
TROUBlESHOOTING PROCEDURE
CAUTION: follow recommended safety practices
at all times while troubleshooting.
1.
Should a problem occur
:
A.
Conduct a general inspection
for obvious
signs of damage and leaking at all TIREMAAX
components.
If not found
, proceed to B.
If
found and the fix is not obvious
, proceed to
Step 2.
B.
Check
tires and components for leaks using a
soapy water solution and
check
each tire for a
low pressure condition. Refer to IN THE EVENT
OF A LEAK on page 44. Proceed to Step 2
if needed.
2. From TROUBLESHOOTING MATRIX on page 38,
select the effect (letter)
that best matches the
symptoms associated with problem.
NOTE:
If needed, refer to LIST OF EFFECTS WITH
3. Following down the lettered effect column from
Step 2,
select a numbered probable cause
that most likely applies according to problem’s
symptoms.
4.
Refer to
If
, while investigating each probable cause, it is
determined that:
A. The probable cause does not apply,
investigate the next most likely or simplest
probable cause.
B. The probable cause is found, complete the
recommended fix, test and, if no other effects,
restore system to normal operation.
C. None of the probable causes for the selected
effect prove valid, return to Step 2 and
investigate the next likely effect with its
probable cause(s).
5.
Repeat
process until the problem is resolved. If
