Global Power Technologies
SERVICE AND MAINTENANCE
302954 rev0 | Model 8550-RU
Page 29 of 53
3.
Remove the burner plate assembly by removing the four Burner Plate mounting screws then
pulling the burner plate assembly down, out of the Power Unit.
Figure 15 – Burner System Components
Perform the following checks once the Burner System has been disassembled:
1.
Check the air shutter assembly and venturi for corrosion or obstructions.
2.
Check the flame holder screen, located in the venturi mounting fitting on the burner plate
assembly, and the burner mantle for corrosion or obstructions.
If these parts are obstructed, clean them with a stiff wire brush.
If they are corroded, the burner must be repaired or replaced.
With the burner plate assembly removed, examine the exhaust stack through the Power Unit,
remove any obstructions and check for corrosion.
If the exhaust stack is corroded, it must be replaced as follows:
1.
Remove the converter shroud which covers the lower portion of the heat pipes. This can be
accomplished without removing the heat pipe support frame.
NOTE: Turn off the fuel supply at the external valve before performing service checks on the
fuel system.
2.
Remove the four nut-and-spring assemblies that hold down the converter mounting ring.
Before removing the converter mounting ring, mark its position so that it can be reinstalled in the
same position.