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Credo Pre-assembled Hydraulic Installation
Instructions
Do not run the actuator without fluid as this will damage the pump.
Use new DOT 3 or DOT 4 brake fluid.
Bleed the brakes by activating the breakaway switch. However, do not run the actuator
continuously for more than 1 minute every 5 minutes. All air must be removed from the system
for the brakes to work correctly. Ensure that the fluid level does not drop below 20mm from the
filler cap opening to avoid more air being pumped into the system.
The multi core cable marked "7 pin plug" must be wired directly to the trailer plug, and it is
important that the earth wire from that cable must only be earthed using the trailer plug earth
pin, i.e. it cannot be connected to a common chassis earth.
The twin core cable joins to the breakaway switch cables.
Connect the cable marked "trailer lights" from the on-trailer module to the trailer tail camp
circuit. DO NOT bypass this directly to the trailer plug.
The on-trailer module assembly can be mounted off centre side to side, but MUST BE, A)
parallel with the front-rear centre line of the trailer, and B) mounted level on the trailer in its
loaded state.
Credo Hydraulic Pre-assembled Instructions
(Applies to Serial # 900-4499)
Mount the on-trailer module according to the mounting orientation instructions on page 3.
Wire the on-trailer module according to the instructions on page 7.
It is important that trailers fitted with the Credo™ braking system are also fitted with 12/24 volt
LED lights, not voltage specific incandescent or LED lights.
Maximum of 2 tail lights and 4 marker lights to be connected to the unit. If more are required
please phone us for installation support.
