Burner Blower With Fuel Pump - Kärcher HDS 9/50 De Tr1 Service Manual

9.17 Burner blower with fuel pump

1 Continuous heater
2 Fuel pump
3 Blower lid
4 Pressure line
5 Rubber collar
6 Solenoid valve
7 Setting fuel pressure
8 Fuel line
9 Filter
10 Return
1 Rubber collar
2 Air flap
3 Screw
4 Burner blower
1 Solenoid valve
2 Setting fuel pressure
3 Connection pressure line
4 Fuel pump
5 Coupling unit
6 Filter
Fuel pump
The fuel pump is connected directly to the motor shaft via
the coupling piece and the blower wheel.
During warm water operation, the installed solenoid valve
and part of the fuel reaches the burner through the fuel
nozzle and is ignited there.
The fuel pressure is adjusted via the central setting screw.
During dry runs, the fuel pump will block.
The coupling piece serves as a nominal breaking point.
68
English 5.906-736.0 Rev. 00 (07/15)