Hendrickson TIREMAAX PRO, Техническая процедура

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45
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
WARNING: Chock all wheels before beginning
this procedure. Refer to PREPARING
TRAIlER fOR SERVICE on page 7
for details.
NOTE:
If the system includes a pressure gauge, the
gauge will appear to register low pressure
while tires are being inflated or if a leak exists
in the system. A simple test for a leak (CP
ONLY) would be to temporarily close the
supply valve and observe to see if pressure
holds steady. If pressure decreases, there may
be a leak in the system.
NOTE:
The TIREMAAX
®
system can be pressurized
without applying electrical power (indicator
lamp is disabled).
Pressurize and check the TIREMAAX system as
follows:
1.
fill
trailer air system to at least 90 psi. If
conducting an integrity check after installation, the
system must be filled to the target pressure.
2. (
PRO Only
)
Chock
wheels and release trailer
parking brake while checking for leaks.
Supply valve open Supply valve closed
Figure 46: Supply Valve Operation
Delivery
air
Supply
air
Test Store
Test port vent
(PRO only)
Test port
(PRO only)
Figure 47:
TIREMAAX (PRO shown) controller valves
3.
Ensure
TIREMAAX supply valve is in open position
(Figure 46).
4. Inspect hoses and components for damage and
listen for audible indications of a leak. Repair as
required.
5. Apply soapy water to all air-fitting connections.
Bubbles in the soapy water will provide a visual
indication of an air leak.
NOTE:
Simply spraying the connections to look for
leaks is acceptable. Using a commercially
available leak detector solution or soapy
water to verify airtight connections is best and
recommended.
6. At axle vent,
listen
for air flow through the vent
tube and apply leak detection fluid to find any
leaks internal to the axle and hubcaps.
NOTE: Temporarily removing and capping supply
hose to road or curb side axle hose will further
isolate a suspected leak.
7. Check tire hose connections at valve stems. Verify
tire hose / valve stem connection did not loosen
during the tire hose connection process.
8. fix, if necessary, all connections to ensure they
are air tight.
9. After fixes are complete,
repeat
procedure until no
leaks are detected.
NOTE:
If conducting a system integrity check to
identify possible leaks, an additional benefit is
all tires will be inflated to the target pressure
(refer to TIRE INFLATION on page 9).
INDICATOR lAMP TEST
This procedure tests both the indicator lamp and flow
switch in the controller.
NOTE:
The indicator lamp may flash momentarily
when the emergency brake is released. If this
occurs, the following steps are not required.
1.
Verify
12 VDC power is available to trailer. Refer
to Figure 40 and Figure 41 on page 33 for
wiring diagrams.
2.
Enable
air flow through controller (
select
applicable method, A or B):
Petcock
(if included)
Supply
Valve