Hendrickson TIREMAAX PRO - Setting CP Target Pressure; Checking CP Delivery Pressure

48
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
Electrical
connection
(connector not
shown)
Supply valve
Petcock valve
Regulator knob
Valve open
Valve closed
Delivery port
Unlock Lock
Figure 50: Setting TIREMAAX
®
CP target pressure with IPCU
SETTING CP TARGET PRESSURE
The TIREMAAX
®
CP controller is pre-set at the factory,
therefore no additional setup is required. To reset a
pressure other than the factory setting, follow these
instructions.
IMPORTANT: The system must be free of air leaks
prior to performing these procedures.
Refer to CHECKING FOR AIR LEAKS on
page 44.
REQUIRED TOOLS AND RESOURCES
The following tools and resources are required to
adjust TIREMAAX CP controller settings.
• Clean, dry shop air supply capable of generating at
least 5 psi above desired cold target pressure.
• Tire pressure gauge.
• CP target gauge. A dial or digital pressure gauge,
capable of reading 5 psi above cold target
pressure, may also be used.
9
2
10
1
bar
psi
0
100xkPa
11
0
20
140
160
100
6
80
8
7
60
5
3
4
40
120
Figure 51: CP target gauge VS-32344
NOTE: The TIREMAAX PRO target gauge (Figure 53
on page 50) can not be used in place
of the CP target gauge. Fittings are not
compatible.
CHECKING CP DELIVERY PRESSURE
Follow this procedure to check pressure in the delivery
line (Figure 50) for TIREMAAX CP systems.
1. Chock wheels or otherwise immobilize trailer.
2. Using clean, dry shop air supply, pressurize
trailer air tank to at least 5 psi above cold target
pressure.
3. Close controller supply valve on the supply line
(Figure 50).
4. Remove tire hose at hubcap and install CP target
gauge (Figure 51).
If CP target gauge is not available:
A. Open petcock valve on the delivery line to
relieve pressure in system.
B. Remove delivery line from the controller.
C. Install temporary pressure gauge at the
delivery port.
5. Close petcock valve on the delivery line.
6. Open controller supply valve on the supply line.
7. Monitor delivery pressure on the gauge:
A. Close supply valve (Figure 50).
B. Observe gauge: if pressure decreases, there
may be a leak in the system, a low tire or