Table of Contents
Advertisement
1
Remove any sound baffles from under the
gearbox.
2
Clean around the drain plugs (D), filler plug (A)
and breather plug (E).
3
Remove the drain plugs (D), filler plug (A) and
breather plug (E) and let the oil run out of the
retarder.
4
Clean around the plug (C) and remove the plug
with strainer.
5
Wash and blow clean the strainer in the plug (C)
with compressed air.
6
Refit the plug (C) with strainer. If the sealing ring
is damaged, replace it. Torque tighten the plug to
100 Nm.
7
Refit the drain plugs (D). If the sealing rings are
damaged, they must be replaced. Torque tighten
the plugs to 20 Nm.
8
Fill the retarder with exactly the correct amount
of oil. Pour the oil carefully into the filler hole
(A). The filling time should be at least 3 minutes
to allow the retarder system to ventilate through
the breather passage (E).
9
Refit the filler plug (A). If the sealing ring is
damaged, it must be replaced. Torque tighten the
plug to 50 Nm.
10
Refit the breather plug (E). If the sealing ring is
damaged, it must be replaced. Torque tighten the
plug to 13 Nm.
11
Check-tighten the retarder's top cover screws
according to the tightening diagram. Tightening
torque 30 Nm. Applies only to the first retarder
oil change.
12
Refit any sound baffles under the gearbox.
Air drier, general
The purpose of the air drier is to dry and clean the
compressed air from moisture and oil, which could
otherwise cause malfunctions. The air drier is
Maintenance 575
Note!
After the oil change, drive at about
50 km/h. Apply the retarder 5 times
in position 2 for about 5 seconds
each time. This is done most suitably
when road testing.
Tightening diagram
J0008979
Advertisement
Table of Contents
