Global Power Technologies
SERVICE AND MAINTENANCE
05585 rev11 | Model 8550-SD
Page 27 of 53
Figure 13 – Fuel System Components
5.4.1
DRAINING THE PRESSURE REGULATOR SEDIMENT BOWL
To drain the pressure regulator sediment bowl:
1.
Open the drain cock located under the pressure regulator.
2.
Using a small container, collect any liquid impurities that may have collected in the bowl.
3.
After the bowl has drained, close the drain cock.
5.4.2
CHANGING THE FUEL FILTER
To change the fuel filter:
1.
Remove the 4 socket cap screws that hold the bottom bowl on the pressure regulator.
2.
Remove the bottom bowl and replace the filter element.
3.
Check and replace the gasket if needed.
4.
Carefully reassemble the regulator ensuring that the needle valve spring is properly placed over
the needle valve centering cup in the regulator body.
5.
Check for proper operation.
6.
Check all joints for fuel leaks.