Checking The Anti-Corrosion Pro Tection - Mercedes-Benz Unimog Operating Instructions Manual

X Compressed-air brake system, circuit 1
compressed-air reservoir ;: remove
covering cap =.
X
Press release valve : upwards and drain
off the condensed water.
X
Press on covering cap =.
X Compressed-air brake system, circuit 2
compressed-air reservoir :: open drain
plug ; by a maximum of a ¼ revolution
and drain off the condensed water.
X
Tighten drain plug ;.
X Compressed-air reservoir for tyre pres-
sure control system :: open drain
plug ; by a maximum of a ¼ revolution
and drain off the condensed water.
X
Tighten drain plug ;.
X If more than 4 cl of condensed water
leaks from a drain plug or a release
valve, or the malfunction occurs regu-
larly: have the compressed-air brake sys-
tem and the compressed-air dryer checked
at a qualified specialist workshop.
Checking the vehicle assemblies
H
Environmental note
Improper handling of service products is haz-
ardous to the environment.
Do not allow service products to enter the
sewage system, surface waters, ground water
or soil.
Check the vehicle assemblies for leaks regu-
larly. If fluid loss is identified, e.g. by oil drops
on the parking area, have the cause of the
fluid loss rectified as quickly as possible at a
qualified specialist workshop.
Checking the anti-corrosion protec-
tion
! Road salt has a corrosive effect. In winter,
wash the vehicle more frequently in order
to remove salt residue. Salt residues can
otherwise damage the anti-corrosion pro-
tection.
The vehicle can be provided with Mercedes-
Benz protective chassis sealing. The
Mercedes-Benz protective chassis sealing is
an anti-corrosion wax with outstanding pro-
tective qualities.
On vehicles without Mercedes-Benz protec-
tive chassis sealing, the cab is provided with
body cavity protection and underbody pro-
tection.
X
Check the vehicle regularly for corrosion
damage, particularly the compressed-air
and hydraulic lines.
X
As a precautionary measure, spray the
underside of the vehicle with a wax-based
protective agent.
X
Have any damage to the factory-fitted anti-
corrosion protection rectified at a qualified
specialist workshop.
X
Vehicles without Mercedes-Benz protec-
tive chassis sealing: as a precautionary
measure, spray the underside of the vehicle
with a wax-based underbody protective
agent according to Sheet No. 385.1 of the
Maintenance
Z
305