Maintenance work on the carrier
7.3 Engine
03.11.2017
Maintenance manual 3 302 574 en 7 - 19
GMK3060
7.3.4 Checking the air intake inhibitor
Additional
equipment
The GMK3060 truck crane can be equipped with an air intake inhibitor as
additional equipment;
à Operating Instructions.
Purpose The engine speed of the truck increases if the intake air at the current site of
the truck crane is enriched with explosive gases or dust (in extreme cases
this can lead to destruction of the engine).
The air intake inhibitor control system reacts to an unintentional increase in
the engine speed and automatically blocks the air supply to the engine.
The engine shuts d
own.
The automatic engine shutdown occurs when the engine speed exceeds
2,4
00 min
-1
2,400 rpm.
Installation
location
The air intake inhibitor is installed under the driver's cab between the
charge air cooler and the charge air intake of the engine.
CCS menu
• Familiarise yourself with the Air intake inhibitor CCS menu;
à Operating Instructions.
The air intake inhibitor can be manually triggered in the CCS menu for a
function test.
Interval
If the symbol (1) is shown then the 4-week interval prescribed by the air
intake inhibitor manufacturer has expired and you must perform the peri-
odic function test of the air intake inhibitor.
The symbol (1) is first displayed in yellow so that you can plan a suitable
time for performing the function test within the next week.
The symbol (1) is displayed in red when the function test has not been per-
formed for 5 weeks. The symbol remains lit until the function test has been
successfully completed.
• Always check the shut-off flap before driving the truck crane to the
following locations:
– at service stations and tank farms,
– fuel depots and chemical factories,
– at places where explosive dust can be found or formed (e.g. carbon
dust, wood dust and grain dust).
s
M 1
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