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If, during the control, components are detected that are deformed
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orworn beyond the limits indicated below, replace them immediately.
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4.1
PERIODIC CHECKS
In compliance with use, and however at least once a year, it isnecessary to
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have qualified staff check the status of wear of the fifth wheel. To do this, it
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is recommended to proceed with the following checks and controls.
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Check shock absorbing system
Brake the unloaded semi-trailer and move the tractor slowly. If movements of the fifth
wheel plate are detected with respect to the upper supports of 3 mm replace pads,
see chap. 7.1 REPLACING THE PADS page 27/35.
General fifth wheel check
A)
Check that the fifth wheel plate (8) and the semi-trailer counter-plate do not have
wear and deformations such to compromise use;
B)
Check that the semi-trailer articulation kingpin is perfectly perpendicular to the
counter-plate;
C)
Make sure there are no cracks or start of breakage in the fifth wheel plate (8)
and supports (15), see page 07/35.
Check wear
A)
Check that the wear of the fifth wheel closure mechanism (2c, 7, 11b) and of the
semi-trailer articulation kingpin lie within the limits illustrated in the figure.
FIFTH WHEEL
INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
RP90
ø112 min
ø86 min
PAGE
21/35
CHAP . 4
REV. 00
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