Technical data
13773-001
12-20
Page 330 Nov 2000
(3) Defueling Airplane Electric Fuel Pump Method
(a) Acquire necessary tools and equipment.
* or equivalent substitute
(b) Provide a suitable fuel drain container at the engine driven fuel pump, located aft of the
engine.
(c) Ground the container to the exhaust outlet and airplane to a suitable earth ground.
(d) Disconnect the fuel supply hose at the engine driven fuel pump.
(e) Attach an auxiliary fuel drain hose (extension) to the end of the existing fuel supply hose.
(f) Place opposing end of the fuel drain hose (extension) into a suitable fuel container.
(g) Turn the Fuel Selector Valve to the tank to be drained.
(h) Remove the filler cap from the fuel filler.
WARNING:
Never allow the electric fuel pump to run dry.
(i) Activate electric fuel pump (Fuel Pump Switch-Boost). Allow the fuel pump to operate until
the fuel tank is empty, then set switch off immediately.
(j) If desired, move the Fuel Selector Valve to the remaining fuel tank. Repeat steps 7 and 8
until the remaining fuel tank is drained.
(k) To completely drain the fuel system, use the fuel sampler cup to remove all fuel and any
contaminates from the gascolator and integral collector tanks.
(l) Remove the auxiliary fuel drain hose (extension).
(m) Secure the fuel supply hose to the engine driven fuel pump.
(n) Fuel airplane. (Refer to 12-10)
(o) Inspect the complete fuel system for any signs of leaks and service as required.
WARNING:
Any time the fuel system is drained or a fuel tank is empty for any rea-
son, air may enter the system. If the possibility that air has entered the
system does exist, ground run the engine on the until all air is
removed from the system. Operate the engine for several minutes on
each tank until proper engine operation is assured. Refer to the Pilot’s
Operating Handbook before starting and operating the engine.
(p) Ground run the engine to purge air from the fuel system.
(q) Reinspect the complete fuel system for any signs of leaks and service as required.
Description P/N or Spec. Supplier Purpose
Fire extinguisher
(Type AB, or ABC)
- Any Source Extinguish fire
Fuel drain container - Any Source Drain old fuel into
Fuel drain hose (exten-
sion)
- Any Source Drain fuel
Fuel supply 100LL (Blue)
100 (Green)
Any Source Fuel airplane
Fuel sampler cup 50627-001* Cirrus Design
Duluth, MN
Drain collector tanks
and gascolator