Maintenance work on the carrier
7.4 Fuel system
16.08.2018
Maintenance manual 3 302 577 en 7 - 29
GMK7450
7.4.2 Draining off water from fuel filter 1
Spare parts and
tools
– Receptacle, approx. 5 l (1.5 gal); à P. 2 - 4.
Prerequisites – The truck crane must be level;
à Operating manual.
– The engine must not be running and must be secured against unauthor-
ised use;
à P. 2 - 3.
WIF sensor Fuel filter 1 is equipped with a chamber in the lower region that collects the
separated water.
The sensor emits a signal when the chamber is full (WIF = Water in Fuel).
If the engine malfunction lamp (1) on the instrument panel
lights up (have
the error code read) then you must drain the water from fuel filter 1.
• Where possible, drain the water regularly before the sensor is triggered.
• Note that the quality of the fuel, and thus the water content, can vary
greatly with the application location.
• Daily water draining may be necessary in the case of very low quality fuel.
Draining off water
• Place a receptacle underneath the filter.
• Open the valve – lever (1) parallel to the line.
• When clean fuel escapes, close the valve –
lever (1) at right angles to the line.
• Remove the receptacle and properly dis-
pose of the drained consumable.
• Check the fastening of the electrical con-
necting cable (3) to the water sensor
(WIF = Water in Fuel) (2).
O
Risk of environmental damage due to leaking consumables!
Always let consumables drain into suitable recept
acles. Wipe up any con-
sumables that escape.
Store/dispose of consumables and any soaked equipment properly.
Ask about the applicable regulations.
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