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sensor.
S Move the low fuel sensor into position in the
fuel tank mount.
S Screw the low fuel sensor fully home into the
mount.
S Tighten the low fuel sensor.
Use Loctite 243 or 'seal-lube' or 'fuellube'.
The arrow must point down.
(2) Connect the electrical cables to the low fuel
switch.
At the in-line connector.
(3) Install the access panel at the wing root rib:
S Put the access panel into position on the
studs.
S Install the 11 washers and nuts.
S Tighten the nuts.
(4) Install the wing, but do not refuel the airplane. Refer to Section 57-10.
(5) Do a test for the correct operation of the low fuel
sensor.
Right tank: Make sure that it switches off
the fuel transfer pump when the fuel
level is low.
Left tank: Make sure that it switches on
the LOW FUEL caution light when the
fuel level is at 3 US gal (+2/-1 US gal).
(6) Refuel the airplane. Refer to Section 12-10.
(7) Do a check for leaks.
AIRCRAFT
DA 40 Series
AMM
Fuel System
Doc # 6.02.01
Rev. 5 28-41-00 Page 203
20 Sep 2007
3. Remove/Install the 'High Fuel' Sensor
Only the left tank has a high fuel sensor.
Obey the safety precautions for fuel at all times.
A. Remove the 'High Fuel' Sensor
Detail Steps/Work Items Key Items/References
(1) Remove the left wing. Refer to Section 57-10.
(2) Remove the left fuel tank assembly. Refer to Section 28-11.
(3) Disconnect the electrical cables for the high fuel
sensor.
At the in-line connector near the high
fuel sensor.
(4) Remove the high fuel sensor from the tank.
AIRCRAFT
Fuel System
DA 40 Series
AMM
Page 204
20 Sep 2007 28-41-00 Doc # 6.02.01
Rev. 5
B. Install the 'High Fuel' Sensor
Detail Steps/Work Items Key Items/References
(1) Install the high fuel sensor in the fuel tank:
S Apply sealant to the thread of the high fuel
sensor.
S Move the high fuel sensor into position in the
fuel tank mount.
S Screw the high fuel sensor fully home into the
mount.
S Tighten the high fuel sensor.
% Use 'seal-lube' or 'fuel-lube'.
The arrow must point up.
(2) Connect the electrical cables to the high fuel
sensor.
At the in-line connector.
(3) Install the left fuel tank assembly. Refer to Section 28-11.
(4) Install the left wing, but do not refuel the airplane. Refer to Section 57-10.
(5) Do a test for the correct operation of the high fuel
sensor.
Make sure that it switches off the fuel
transfer pump when the fuel level in the
left tank is high.
(6) Refuel the airplane. Refer to Section 12-10.
(7) Do a check for leaks.
AIRCRAFT
DA 40 Series
AMM
Fuel System
Doc # 6.02.01
Rev. 5 28-41-00 Page 205
20 Sep 2007
4. Remove/Install a Fuel Quantity Probe
Obey the safety precautions for fuel at all times.
A. Remove a Fuel Quantity Probe
Detail Steps/Work Items Key Items/References
(1) Remove the wing that has the fuel quantity probe
that you will remove, and support the wing on
trestles.
Refer to Section 57-10.
(2) Remove fuel tank assembly from the wing. Refer to Section 28-11.
(3) Remove the fuel quantity probe from the threaded
mounting.
AIRCRAFT
Fuel System
DA 40 Series
AMM
Page 206
20 Sep 2007 28-41-00 Doc # 6.02.01
Rev. 5
B. Install a Fuel Quantity Probe
Detail Steps/Work Items Key Items/References
(1) Separate the fuel filler assembly from the fuel
tank.
Refer to Section 28-11.
To gain access to the guide at the
outboard end of the fuel tank.
(2) Install the fuel quantity probe into the fuel tank:
S Apply sealant to the thread of the fuel quantity
probe.
S Install a new O-ring seal.
% S Install the Teflon sleeve to the fuel probe.
S Carefully move the fuel quantity probe into
position in the inboard tank. Engage the
thread.
S Turn the probe clockwise, by hand, until the
fuel quantity probe is fully engaged in its
mount.
S Tighten the fuel quantity probe until the O-ring
seals.
% Use 'seal-lube' or 'fuel-lube'.
Make sure that the fuel quantity probe
goes into the guide at the outboard end
of the fuel tank.
(3) Re-connect the fuel filler assembly to the fuel
tank.
Refer to Section 28-11.
(4) Install fuel tank assembly into wing. Refer to Section 28-11.
(5) Install the wing to the airplane. Refer to Section 57-10.
(6) Examine the fuel quantity probe installation for
fuel leaks.
(7) Install the access panel for the fuel tank. Refer to Section 52-40.
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钻石40系列AMM 2(38)
