3.1 Connecting a semi-trailer
1. Check that the trailer hand brake is set and check that the fifth
wheel is open and ready for coupling (see Figure 3). If there is
any doubt, carry out the uncoupling procedure (section 3.3) until
the fifth wheel is fully open.
2. Ensure that the trailer rubbing plate is slightly below the level of
the fifth wheel (see Figure 4 ), but not by more than 50mm.
3. Reverse the tractor at a steady speed (around 2-3kph is sensible)
keeping the kingpin in the centre of the fifth wheel at all times,
until the fifth wheel locks.
3.2 Checking the fifth wheel is properly connected
To ensure that the fifth wheel is closed with the kingpin correctly
locked inside the mechanism carry out the following safety checks.
Check that the handle is correctly closed. The method for this varies
depending on the type of fifth wheel handle.
Standard Handle
The fifth wheel is only correctly locked when the inside notch in the
handle is hidden under the fifth wheel and the safety clip can be
fitted in the hole (see Figure 5).
3000 Fifth Wheel Instruction Manual
5
O P E R A T I O N
English
200mm approx
Handle block
Handle will be pushed out
by 200mm approx and slot
latched on handle block.
Figure 3 - Fifth wheel in Open position
Trailer below level of fifthwheel
Figure 4 - Fifth wheel and trailer heights
Figure 5 - Locking of a fifth wheel with a Standard handle
