JS-3 Jet Sustainer
Flight Manual Supplement
JS03-AFM-00-002
Issue: 00.32JS
Rev. 00.32JS
Rev. Date: 08.02.2019
Page 4
–20
CAUTION:
Only use a refuel supplied pipe approved by M&D with
proper filters. Fuel contamination may cause engine
failures.
CAUTION:
Do not switch the system OFF and back ON while
refueling. The pylon will be automatically retracted when
powered ON. The refueling pipes may cause damage to
the bay doors while extending or retracting the pylon.
CAUTION:
Switch the re-
fueling switch back to “
OPR
” after refueling.
Failure to do so will prevent the fuel pump to be activated
during operation resulting in the system being in-
operational.
De-fueling
4.10.4
Defueling may be required for maintenance purposes, replacement of
old fuel or when fuel probe calibration is required.
Defueling is performed using the same procedure and hardware as with
refueling. Reverse flow is achieved by switching the refueling switch to
the “
-
“position. After defueling switch the selector to “OPR”.
After the fuel has been pumped from the tanks, approximately 0.4 litre
will still remain in the main tanks. This fuel can be drained through the
drain valve in the wheel box behind the main wheel.
CAUTION:
Ensure the fuel container has adequate capacity for
amount of fuel to be removed from the glider’s fuel tanks.
CAUTION:
Monitor the fuel quantity during defueling. The fuel pump
requires fuel for lubrication and cooling. Do not operate
without fuel as this will destroy the pump.
