UD Trucks QUESTER Series, Руководство пользователя

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3. EQUIPMENT DESCRIPTION AND OPERATION
3-41
Check the clearance between the
locking mechanism and the king pin
b y m o v i n g t h e t r a c t o r v e h i c l e
f o r w a r d s a n d b a c k w a r d s . I f t h e
c l e a r a n c e i s e x c e s s i v e , c o n s u l t
n e a r e s t U D Tr u c k s a u t h o r i s e d
dealer.
De-coupling procedure
T h e s e m i t r a i l e r a n d t h e t r a c t o r
v e h i c l e m u s t b e o n t h e s a m e f l a t
surface. This surface must not give
u n d e r t h e p r e s s u r e o f t h e l o a d
transmitted through the tyres and the
lifting device.
Ensure that the semitrailer does not
pull the tractor vehicle.
Apply the semitrailer brake and the
parking brake of the tractor vehicle
to chock the semitrailer wheels.
Lower the lifting device, take proper
c a r e n o t t o r a i s e t h e s e m i t r a i l e r
platform on the fifth-wheel base.
Unlock the fifth wheel with release
handle as follows.
1. Unlock the safety pin.
2. Grip hold the handle.
3. Slide the handle back.
4. Pull out the handle.
WARNING
Do not use any fifth wheel that
fails to operate properly.
WARNING
The trailer and the tractor must
b e r e s t i n g o n t h e s a m e f l a t
surface which must not give
under the pressure of the load
transmitted through the tyres
and the lifting device.