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During unloading it is particularly important to establish a safe working area extending at least
6m behind the trailer. This rear MUST remain clear of people and property. Children and
animals should be firmly under control so that they cannot wander into the working area.
•
Ensure the towing vehicle handbrake is “on” and the trailer handbrake “off” (Th
e
trailer must be free to move towards the towing vehicle during tilting.)
•
Ensure the vehicle on the trailer has its handbrake “on”.
•
If a winch is fitted the winch cable should heve been left attached in transit but with some
“slack” in it
. Operate the winch so as to remove the slack but do not allow the winch to pull
with excessive force.
•
If the TB stow-away skid option is fitted, remove the skids from behind their cover in the
centre of the trailer and attach them to the rear of the trailer in line with the wheels.
•
In the case of the CT177 pull out the mini-skids.
•
In the case of a ramp or sliding skids release them and rest them on the ground.
•
Release the clamps at the front of the trailer and tip the trailer a small amount
–
sufficient to
be certain the tendency is just for the load to roll backwards. See section 6.1 for more detail.
•
If sideboards are fitted, the rear sideboards must be closed.
•
Remove the wheel securing straps.
•
Tip the trailer until the back of the trailer is firmly against the ground (it will lift up as the load
comes off the trailer suspension).
•
Close the pressure release valve (see image in section 3.4.3)
•
Apply the footbrake on the vehicle on the trailer and release its handbrake. Release the
footbrake slowly such that all the load is now on the winch cable.
•
If no winch is fitted allow the vehicle to roll until it is about half off the trailer. If the vehicle is
such that clearance problems are feared, pause the unloading and exit the vehicle to check
the spoiler clearance.
•
If an electric winch is fitted spool out the winch until the vehicle is about half off the trailer,
then pause the operation.
•
In the case of a manual winch, take a firm grip on the handle and apply sufficient tension to
the cable to allow the ratchet to be released. Manual winches supplied with Ifor williams
trailers should have an automatic brake such that, if the handle is released the winch
locks. Do not rely on the automatic brake, KEEP A FIRM GRIP ON THE HANDLE as the
vehicle is winched down the trailer. As with the electric winch pause at the half off
position by re-engaging the ratchet.
