TRT TractionAir Manuel utilisateur
TractionAir
Electronic Control Units EC9 .................................................... 2
Pressure Cell ............................................................................ 3
ECU Installation ........................................................................ 4
GPS Reciever Mounting .............................................................. 5
Wiring for the Short Lead on the Loom ..................................... 5
Fuse ......................................................................................... 6
Pressure Cell Installation ........................................................... 6
Wheel End Mounting ................................................................. 7-10
Plumbing .................................................................................... 11-12
Tee Mounting Between Wheels ................................................ 12-14
Loom Connection at Pressure Cell ............................................ 15
Test System ............................................................................. 16
TractionAir ECU Operation & Functionality ................................. 17
Air Leaks ..................................................................................... 17
Operating Instructions for versions with GPS Speed Up ........... 18
General Operation ...................................................................... 19-20
Functions .................................................................................... 20
Pressure Sensor Fail ................................................................. 21-22
Pressure Transducer Test .......................................................... 22
Park Up ....................................................................................... 22
Operating Tips ............................................................................ 23
TractionAir Hose Identication .................................................... 24
Tyre Plumbing & Puncture Repair .............................................. 25
ECU Version Identication .......................................................... 26
Contacts ..................................................................................... 28
TractionAir
Installation and Operating Manual
July 2018 G5
TractionAir
2
TractionAir 5th Generation
Designed and manufactured by TRT in Hamilton New Zealand, TractionAir is an
electronically controlled proportional pressure system, for central tyre ination
(CTI). TractionAir is the user-friendly CTI System and is comprised of two main
components, the electronic control unit (ECU) and the pressure cell. TractionAir
is a modular system designed for quick t, connect and run.
Electronic Control Unit EC9
TRT’s latest EC9 has an enhanced mini USB interface and functionality for the
eet technician, while retaining all of the functionality of the earlier versions.
Our 5th generation EC9 is a giant leap forward in pneumatic pressure control.
The EC9 incorporates “dual pressure transducer technology”, delivering
unsurpassed safety and performance.
The dual transducers work in tandem, continuously measuring pressure with
each other, they eectively self diagnose. Should either transducer output dier
from the other by more than 5 psi the ECU will alert the driver of the transducer
fault.
Note: If you have chosen a manual system without speed-up the GPS and speed
settings will not show on the display and the GPS on-o function will not operate.
TractionAir
3
Pressure Cell Internals
Pressure Cell
The G5 Pressure Cell is a one piece alloy vessel which includes an integral air
reservoir and the TractionAir pneumatics system. Mounted appropriately on the
vehicle chassis, the TractionAir G5 Pressure Cell requires only two air line and
one electrical loom connection.
3. Exhaust
1. To and from Tyres
1. Main Fill Valve
2. Main Exhaust
Valve
3. Rubber Gasket
4. Vent
4. Pilot Valve Fill
6. Connection Block
7. Transducer 1
8. Transducer 2
5. Pilot Valve Exhaust
2. Supply from Truck
TractionAir
4
ECU Installation
1. Mount the ECU in a position in the cab of the vehicle, where it will be
easily accessible for making pressure adjustments whilst driving
the vehicle.
2. The rear of the ECU has a male electrical connector which connects to
the MOLEX Mini-Fit plug on the dual loom assembly. The two-core
power loom is to be wired into an auxiliary circuit which is isolated when
the ignition key is switched o. The other multicore loom is wired into the
pressure cell. (Power on with ignition, power o with ignition). The system
is suitable for both 12V and 24V vehicles and will operate between
11V to 30V DC.
a. The short loom is the power supply comprising of two wires
(refer to ECU wiring diagram on pages 5). The ECU must be
protected with either a 2 amp blade fuse located in the fuse board
in the vehicle or by using the in-line 2 or 3 amp fuse provided in the
kitset.
b. Run the long loom from the ECU to the alloy pressure cell.
It is important that sucient length of cable is allowed for with cab-
over vehicles, to allow for tilting the cab. Use the convolute
steering to protect the cable.
c. Attach the lead for the externally connected GPS unit to the
Female DIN plug on the rear of the ECU and site to suit within
the cab (as close to windscreen as possible).
Connect Larger Loom to Pressure Cell
Connect Smaller
Loom to Ignition
10 Pin Female Plug
(To Rear of TIDD - TPC Controller)
2 Core Power (3m) to Ignition
7 Core to Pressure
TractionAir
5
ECU’s with GPS Speed Control
Ensure the GPS receiver is mounted as close to the windscreen as possible
with a clear view of the sky. This will allow the strongest signal.
Wiring for the Short Lead on the Loom
(Power and Earth to ECU)
Note: Power to be ignition fed.
3
5
1
2
5
6
7
8
9
10
11
12
10 PIN FEMALE PLUG
(To Rear of TractionAir Controller) 2 Core Power (3m) to Ignition
7 Core to Pressure Cell
RED 11 to 30V DC
Black 0V
BLACK (GND)
RED (Drive Inate)
BROWN (POS)
YELLOW (Drive 4-20mA IN)
BLUE (Drive 4-20mA IN)
WHITE (Spare)
GREEN (Drive Exhaust)
TractionAir
6
Fuse
The TractionAir control mechanism only draws
0.75 Amp (single channel). Where possible
power the unit from a spare 2 Amp fuse in the
truck’s fuse board. If this is not practical use
the 2 or 3 Amp inline fuse supplied with the kit.
Pressure Cell Installation
1. Mount the pressure cell in a position within the chassis to avoid damage.
a. Do not mount the enclosure close to any heat source. e.g. exhaust
b. Provided in each kitset are four ½” rubber washers approx.
15mm long. These are to reduce vibration. Fit them between the
truck frame (mounting plate) and the Alloy Enclosure bracket.
Tighten the ½” retaining bolts and lock nuts until the rubber
washers are compressed to around half their starting length.
1. Bolt
3. Rubber Isolator
2. Washer
4. Washer & Nut
TractionAir
7
2. Fit the pressure protection valve TAPR2-90 hard-piped to the auxiliary
air tank. The PR2 Valve protects the integrity of the vehicle’s Air Brake
System (ABS) and must be installed vertically.
Mount with the white Plastic Knob facing up
Plumb INLET = Side Port (DEL)
OUTLET = End Port (SUP) AIR IN
AIR OUT
Wheel End Mounting
Depending on the make of the vehicle, position both inner and outer wheels so
that the valve stems are opposite each other (180 degrees apart).
This may require rotating both inner and outer wheels. The easiest way of
achieving this, is to position the Wheel Bridge so that the hose nipple points
straight at the inner valve stem.
Remove any studs that will allow for this alignment. The inner hose will now
point straight at the valve stem. This method means that only the outside wheel
will need rotating to line up with the corresponding hose nipple. The two wheels
should now have their valve stems opposite each other, which is critical to a
successful job.
TractionAir
8
Shown assembled (note integral low prole right angle adaptor for feed hose)
Note*: Bridge, Spacers & Bolt will
change to suit dierent vehicles.
Wheel End Mounting
Standard Conventional Rotor
TAAG0607
TABV4
PEA7-0404
TAB........
(Check Vehicle Model)
TADCCC
TAD04
TAAB0404
Bolt diameter length and thread may
vary between various vehicle make’s and
model’s.
TractionAir
9
TAABS8
PEA7-0404
TAABHRS
TADCACI
TABV4
TAABS8I
TADCHRHD
TAAG0207
TA40335
Note*: Bridge, Spacers & Bolt will
change to suit dierent vehicles.
Heavy Duty High Temperature Hub Reduction Model Wheel End
TAHDN0204
AA4500
TractionAir
10
Wheel End Plumbing Layout
Outer Wheel Hose
Axle Bridge
TRT Rotator
External
Wheel Hose
Inner
Wheel Hose
Tee Block
3/8 Nylon Tube
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