Fig. 27 Fuel filter with water trap
1 Filter head
2 Filter element
3 Water trap
4 Drain plug
Checking the water trap
The water trap is semi-transparent so the fuel level can be seen from outside.
■
Water, being denser than diesel fuel, sinks to the bottom of the water trap.
■ The presence of water can be verified by its different colour to the fuel.
A check should be made daily as to whether water and dirt has accumulated.
1. Raise the canopy.
2. Check the fuel in the water trap.
The water trap should be emptied when dirty.
3. Close the canopy.
Emptying the water trap
Precondition The negative cable to the battery is disconnected.
1. Raise the canopy.
2. Place a receptacle under the drain plug 4
.
3.
Unscrew the drain plug and allow water and dirt to drain out into the receptacle.
4. Catch the liquid mixture in the receptacle.
5. Tighten the drain plug 4
again.
6.
Reconnect the battery.
7. Close the canopy.
Dispose of fuel and any materials contaminated with it in accordance with environmental pro‐
tection regulations.
Changing the filter element
The fuel filter element should be changed
■
According to the maintenance schedule.
■ If the engine cannot draw in enough fuel and loses power.
The interval between filter element changes is dependent on fuel quality and cleanliness.
The fuel tank should be nearly empty when the filter element is changed.
10 Maintenance
10.3 Engine
80
Service Manual Screw Compressor
M43 No.: 9_9432 02 E
Option ne
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