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Doc # 6.02.01
Rev. 5 28-21-00 Page 101
20 Sep 2007
Trouble-Shooting
1. General
The table below lists the defects you could have with the fuel distribution system. If you have the trouble
detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in
the Repair column.
Trouble Possible Cause Repair
Airplane smells of fuel. Hose/Pipe leaking. Examine all hoses and pipes.
Replace defective components.
Loose connection. Examine all connections.
Tighten loose connections.
Component leaking. Examine all components.
Replace defective components.
Fuel does not transfer
correctly.
Fuel transfer pump circuitbreaker
not set.
Set the transfer pump circuitbreaker.
Fuel transfer pump defective. Replace the transfer pump.
Low fuel sensor in right tank
defective.
Replace the sensor.
High fuel sensor in left tank
defective
Replace the sensor.
FUEL TRANS ³ switch in
instrument panel defective.
Replace the switch.
Wiring defective. Repair wiring.
AIRCRAFT
Fuel System
DA 40 Series
AMM
Page 102
20 Sep 2007 28-21-00 Doc # 6.02.01
Rev. 5
Intentionally left blank
AIRCRAFT
DA 40 Series
AMM
Fuel System
Doc # 6.02.01
Rev. 5 28-21-00 Page 201
20 Sep 2007
Maintenance Practices
1. General
This section gives you the maintenance practices for the fuel distribution system. The procedures are
limited to the removal/installation of the main components of the system.
Obey the safety precautions for fuel at all times.
WARNING: DO NOT GET FUEL ON YOU. FUEL CAN CAUSE SKIN DISEASE.
WARNING: DO NOT ALLOW FIRE NEAR FUEL. FUEL BURNS AND CAN CAUSE
INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
WARNING: DO NOT BREATH FUEL VAPOR. FUEL VAPOR CAN MAKE YOU ILL.
2. Remove/Install the Emergency Fuel Valve and the Gascolator
A. Remove the Emergency Fuel Valve and the Gascolator
Remove the emergency fuel valve and the gascolator as an assembly.
Obey the safety precautions for fuel at all times.
Detail Steps/Work Items Key Items/References
(1) Defuel the airplane. Refer to Section 12-10.
(2) Remove the access panel from the bottom of the
fuselage around the gascolator drain valve.
Refer to Section 52-40.
(3) Drain the fuel from the distribution system. Use a suitable container. Drain the fuel
from the gascolator drain valve.
(4) Disconnect the flexible hose which connects the
left fuel tank to the emergency fuel valve, at the
valve.
Put caps on the connections.
(5) Disconnect the union at the T-piece which
connects the right fuel tank to the emergency fuel
valve, at the valve.
Put caps on the connections.
(6) Disconnect the fuel pipe which connects the
gascolator to the firewall, at the gascolator.
Put caps on the connections.
AIRCRAFT
Fuel System
DA 40 Series
AMM
Detail Steps/Work Items Key Items/References
Page 202
20 Sep 2007 28-21-00 Doc # 6.02.01
Rev. 5
(7) Remove the emergency fuel valve and the
gascolator:
S Remove the bolt and washer which attach the
gascolator mounting bracket.
S Remove the four bolts and washers which
attach the emergency fuel valve to the
fuselage.
S Lower the emergency fuel valve and the
gascolator clear of the airplane.
Hold the emergency fuel valve!
B. Install the Emergency Fuel Valve and the Gascolator
Detail Steps/Work Items Key Items/References
(1) Remove the left pilot's seat. Refer to Section 25-10.
(2) Move the emergency fuel valve and the
gascolator into position in the fuselage.
Make sure that the gascolator mounting
bracket is correctly located.
Slide connecting shaft into the mating
part of the emergency fuel valve.
Make sure that both the control lever in
the cockpit and the emergency fuel valve
are at the same position.
(3) Install the emergency fuel valve and the
gascolator:
S Install the 4 washers on the 4 bolts.
S Put the bolts and washers into position
through the emergency fuel valve into the
anchor-nuts.
S Install the bolt and washer which attach the
gascolator mounting bracket.
S Tighten the bolts.
AIRCRAFT
DA 40 Series
AMM
Fuel System
Detail Steps/Work Items Key Items/References
Doc # 6.02.01
Rev. 5 28-21-00 Page 203
20 Sep 2007
(4) Connect the pipe from the gascolator to the
firewall.
(5) Connect the T-piece to the selector valve.
(6) Connect the flexible hose from the left fuel tank to
the selector valve.
　
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本文鏈接地址：鉆石40系列AMM 2(30)