Page 210 2
nd
Edition – Rev 0
28-10
FUEL SYSTEM – MAINTENANCE PRACTICE
7. GASCOLATOR CLEANING
Drain fuel tank according to Fuel system draining procedure
Open gascolator drain valve then cut safety wire
Refer to Figures 12.
and 13.
Lose the lower gascolator lower threated washer and remove
the plug (and filter)
Refer to Figures 12.
and 13.
Clean filter by suitable means, removing all impurities;
Place filter into gascolator, then re-apply lower screw
Fasten lower cower by safety wire
Refer to Figures 12.
and 13.
8. FUEL VENT INSPECTION
Drain fuel tank according to Fuel system draining procedure
Remove the Tank vent inspection cover (23)
Disconnect the tube vent of the tank
Take an air pistol or suitable means
Put air pistol outflow in correspondence of fuel vent outflow
Push air pistol trigger and regulate outflow pressure
Pay attention: a high
pressure could cause
damages to tank and
to fuel system line
Working with a high pressure air flow could cause damages to tank and/or to
fuel system line
Make sure to feel a pressure on rag to check fuel vent hose
free from occlusions
In case of fuel vent occlusion contact aircraft manufacturer.