
MAINTENANCE AND REPAIR
Operating instructions • Box Carrier • 505410619-02 • 05/2021
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9.2.7
Lubricating the trailer
NOTE
Material damage caused by dry lubrica-
tion points!
Too little or a lack of grease can result in
damage to moving parts.
► Lubricate the trailer regularly.
► Top up the grease on all the lubrication
points.
► Lubricate moving parts on the trailer
superstructure (e.g. door locks,
hinges) as needed.
► Lubricate the grease nipple on the turn
frame every 8,000 – 10,000 km or
once a month with a high-quality roller
bearing grease (lithium-saponified,
NLGI consistency class 2). To do so,
swivel the turn frame back and forth
until a relatively constant bead of
grease emerges from the bearing
clearance or sealing lips around the
entire circumference.
► Also observe the enclosed supplier
documentation.
9.2.8
Electrical equipment
► Perform a visual check of the electrical
connections for the lighting and ABS/
EBS for wear and damage.
► Perform a visual check of the lighting
and signalling systems.
► Perform a visual inspection of the elec-
trical connections.
► Have defective electrical components
replaced by an authorised specialist
workshop.
► Only have work on the electrical equip-
ment performed by trained electricians,
or by personnel trained especially for
the purpose, in accordance with all ap-
plicable safety rules and regulations.
9.2.9
Locking mechanism
► Perform a visual inspection for wear
and damage.
► Have defective or damaged compon-
ents replaced.
9.2.10
Contour marking
► Perform a regular visual check of the
contour markings.
► Pay attention to damage, soiling and
visibility.
► Have defective or damaged contour
markings replaced.
9.2.11
Coupling ring
!
WARNING
Risk of accident caused by wear!
A worn coupling ring can cause the trailer
to tear off while driving and result in seri-
ous injuries and material damage.
► Check the wear on the coupling ring
regularly.
► Worn coupling rings must be replaced
by an authorised specialist workshop.
► Check the coupling ring for wear and
damage.
INFO
Observe the maintenance instructions, di-
mensions and values of the coupling ring
manufacturer. Worn coupling rings must
be checked and replaced by an authorised
specialist workshop.
► Check the mounting and tighten the
fastening bolts if required.
► Lubricate the coupling ring as needed.
9.2.12
Bolted connections
► Check bolted connections regularly for
settling signs.
► Replace defective bolted connections
and those with visible damage.
► Observe the instructions about bolted
connections in the supplier document-
ation.