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When lowering Tiltbeds open the pressure release valve (refer to image in 4.4.3) very slowly.
If
the release valve is opened too quickly too soon the flow of high pressure hydraulic fluid out
of the ram may be such that it simulates a burst hose and the burst valve screwed into the
base of the ram then closes, locking the trailer in a partly tilted condition.
•
IF THE BURST VALVE CLOSES as described above, simply pump the trailer up a small amount.
As soon as hydraulic fluid is forced back into the ram the burst valve will reset. Close the valve
and the trailer may be lowered again. Open the release valve less and more slowly than
previously.
•
Once the bed is fully lowered, ensure the pressure release valve is left open to avoid a build-
up of pressure in the hydraulic system.
•
Before moving off complete the checks in
the User’s Handbook
4.2.2
–
Loading Vehicles or Rolling Loads with an Electric Winch
•
Ifor Williams supply two variants of electric winch installation: with Power Leads or On-Board
Battery.
•
All Ifor Williams supplied winches have a remote control on the end of a long “susie” cable.
The remote control and its cable are normally disconnected from the trailer when not in use
and carried on the towing vehicle
–
the dangers of leaving a long cable on a trailer in transit
being obvious. Plug the remote control into the mating socket on the winch assembly.
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The Power Lead option involves heavy duty electrical cables with high current/low voltage
plugs, which cannot be connected the wrong way around, at each end. In order to use the
Power Lead system, the towing vehicle must have been modified to provide the Power Lead
connection to its battery. The Power Leads will also normally be stored on the towing vehicle.
