43
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
PROBABLE CAUSES DESCRIPTION RECOMMENDED FIX
31 Loose wire or
connection
Loose wires can lead to no or intermittent
illumination of the indicator lamp during inflation.
I. Refer to Figure 40 and Figure 41 on page 33 to
trace and check all electrical connections.
II. Refer to ADDING RESTRAINT TO WIRING on
page 34 to ensure all wires and wire harnesses
are properly restrained.
1 If there are no tires damaged and no leaks present, let the TIS continue to operate. Low temperature, poor air supplies and low tire pressures will
increase the period of time required to inflate and maintain tire pressure. If the indicator lamp remains on after an additional 10 minutes TIS service is
required. The use of air additives and antifreeze containing alcohol will cause deterioration of rubber components and must be avoided.
2 The system identifies leaks and reports them by illuminating the trailer-mounted indicator lamp. The operator is informed whenever a tire is low
enough to require service or there is a leak in the system. Wheel valves isolate the leaking or damaged wheel from the system. Probable cause
2, 3 and 4 help identify the severity of the leak in general and apply to all other causes of leaks. Other causes, with their associated effect, help to
identify the location of the leak referenced in causes 2, 3 and 4.
3 Before removing a hubcap for any procedure, refer to manufacturer’s warranty requirements. Disturbing spindle nut, wheel bearings and hub
assembly can violate the wheel-end warranty. Also, replenish any lost lubricant during reassembly according to manufacturer’s requirements.
4 Any attempts to disassemble hubcap assembly or controller and its components will void the TIREMAAX warranty.
5 When working around electricity and with electrical components, always observe proper safety precautions.
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