|
| |
TM 10-4930-250-13&P
2.5 OPERATING PROCEDURES.
Death or personal injury may result from the explosion of fuel fumes exposed to an open
flame, spark, or to static discharge. Do not permit smoking, any open flame, or spark
producing equipment within fifty (50) feet (15.24 m) of AAFARS. Ensure all equipments
are well grounded prior to commencing any operation or maintenance task. Always ensure
the ground connection from the aircraft is complete prior to beginning any fueling
operation.
System components are subject to damage from thermal expansion. As the temperature
increases, the pumpage in any component will expand. If trapped in a component, the
expanding pumpage may rupture seals and cause a leak or equipment malfunction. For this
reason, all system valves should remain open as long as the system is flooded. With all
valves open, the hoses will absorb the expansion and protect system seals. If any
component must be isolated, it should be drained or defueled immediately to prevent
damage.
NOTE
During operation, monitor the filter-separator differential pressure gauge. If a pressure
differential of more than fifteen psi is observed, the fuel flow is being restricted and the
coalescer elements should be replaced.
a.
Conduct a visual inspection of the AAFARS setup to ensure the system is properly assembled and ready to
pump fuel. Verify system grounding.
b.
Verify/Position fuel selector valve in ON or EXTERNAL ON position, according to desired fuel source.
c.
Verify that black start control is fully lowered.
d.
At the fuel drums, open the fuel drum outlet elbow valve couplings allowing pumpage to flow.
NOTE
Step e describes an electric start of AAFARS. If a manual start is to be attempted proceed
to step f.
e. Perform normal electric engine start.
(1) Unlatch and open control box cover.
(2)
At the control panel, hold the ENGINE switch in the START position until the engine starts. If engine fails
to start within 15 seconds, release switch and allow starter to coot for a minute before continuing. When the
ambient temperature is below 20* F (-7* C), position and hold INTAKE HEATER switch in the ON
position while ENGINE switch is in START position.
(3) Adjust the control panel lights to the desired brightness.
(4)
Disconnect battery power cable from NATO connector 1A1J1 on engine module. Install dust caps on
NATO connector and free end of battery power cable. Stow battery power cable in accessory module.
Proceed to step g.
2-15
|
