REV. 00
PAG.
18/36
1)
2)
3)
4)
3.2 UNCOUPLING
Lock the semi-trailer wheels;
Wind down the semi-trailer landing legs until they touch the ground;
Release the fifth wheel lock mechanism as follows:
Draw the operating handle (19c) upwards whilst pushing it towards
the
front end of the vehicle then draw it outward, towards the vehicle's
outside
Uncouple the tractor unit by moving slowly forwards until the semi-
trailer king pin has moved out of the fifth wheel coupling point by
about 30-50 cm.;
CAUTION: If the operating handle (19c) is hard to operate on,
reverse the tractor unit to relieve the pressure put on the fifth
wheel jaw by the semi-trailer king pin.
CAUTION: contact between the fifth wheel and the semi-trailer
counter plate must never be broken.
1
1
1
3
3
19c
CAUTION: do not use gears or any external mechanism to open
up the fifth wheel.
If the operating handle will not unlock, check that all the
FIFTH WHEEL Rp10
INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
19c
CHAP. 3
