PMS 4500 FCB Manual - Ysebaert

Maintenance Instructions
B.3.1 De-aerating the fuel system
Normally, the fuel system is designed to bleed out air itself i.e. as soon as the electric starter
motor starts operation the fuel pump starts working and the fuel system will be de-aerated after
some time automatically. It is nevertheless essential to bleed the system as follows prior to the
first operation (as all hoses are empty):
1. Main power switch "OFF".
2. Disconnect clamp no. 5 of the DC-term
block.
3. Main power switch "ON" for approx
minutes (the electrical fuel pump pro
and airs out automatically the fuel inle
Do not press the "START"-button!
4. Main power switch "OFF".
5. Reconnect lamp no. 5 of the DC-term
block.
12
If still bubbles are in the fuel inlets, the
ventilation screw at the fuel solenoid valve
(or the union nut at the injection line at the
cylinder head) should opened and the
procedure has to be accomplished again.
It is advisable to hold an absorbent paper
or cloth under the screw so that the fuel
does not run in the sound cover. The fuel
pump must run only until nonporously fuel
withdraws. As soon as the system is aired
out, the open screw must be tightened
again.
B.3.2 Exchange of the fuel filter
The exchange of the filter depends on the
contamination of the fuel, should take
place at least all 300 operation hours.
Before the exchange of the filter the inlet
must be clamped.
Remove the hoses from the used filter
and fasten them to the new filter. The
arrow on the filter housing indicates the
direction of the fuel flow. A clogged filter
causes a decreased power output of the
generator.
Page 16 PMS_4500_FCB_manual.V02 - Chapter B: Maintenance Instructions 15.7.05