Maintenance work on the carrier
7.16 Central lubrication system
09.03.2018
Maintenance manual 3 302 744 en 7 - 121
GMK5250L
7.16.2 Bleeding the central lubrication system
If the grease container is empty or contains bubbles, you must bleed the
central lubrication system.
The grease container (1) is full.
• Loosen the lubricating pipe at the connec-
tion (2).
• Switch on the ignition.
• Remove the cap (4).
• Press the button (3) for approx. 2 seconds.
Repeat the procedure until the grease flow-
ing from the connection (2) no longer con-
tains any bubbles.
• Bolt the cover (4) on.
• Fasten the lubricating pipe at connection (2).
• Remove any grease that emerges.
7.16.3 Triggering intermediate lubrication
Intermediate lubrication should be activated:
– after high pressure cleaning,
– to check the lubrication system at all lubricating points.
• Switch on the ignition.
• Remove the cap (1).
• Press the button (2) for approx. 2 seconds
once.
An intermediate lubrication cycle will be trig-
gered which lasts approx. 3 minutes. Check
whether grease is applied to all lubricating
points (steering arms on the 1
st
, 4
th
and 5
th
axle lines).
• Bolt the cover (1) on.
• Turn off the ignition and remove any excess
grease.
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