valve up for at least five seconds. Reposition the gear handle in the
"UP" position for another retraction attempt. If the gear "UP"
indicator light still fails to illuminate, an immediate landing is not
necessary. The flight may continue to an airport having maintenance
facilities if, after the gear has been apparently retracted, cruise speed
appears normal with no abnormal buffeting, and the landing gear
motor is not running. However, if the gear motor does not shut off
after retraction, or the gear "UP" light continues to operate
intermittently, the landing gear should be extended until
maintenance can be obtained.
NOTE
Test for landing gear motor operation as follows: At a
safe altitude, cycle landing gear at 65 kts with low pow-
er and listen for the motor to shut off following the
normal sound of gear retraction (approximately 12
seconds). Intermittent gear motor operation may also
be detected by momentary fluctuations of the ammeter
needle.
EXTENSION MALFUNCTIONS.
Normal landing gear extension time is approximately 14
seconds. If the landing gear will not extend normally, perform the
general checks of circuit breakers and master switch and repeat the
normal extension procedures at a reduced air speed of 69 kts. If
efforts to extend and lock the gear through the normal landing gear
system fail, the gear can be manually extended (as long as
hydraulic system fluid has not been completely lost) by use of the
emergency hand pump. The hand pump is located under a hinged
cover between the front seats.
MANUAL LANDING GEAR EXTENSION.
The following procedures are necessary for manual landing
gear extension:
(1)
Place landing gear handle in the "DWN" position.
(2)
Lift cover and extend pump handle-
(3)
Pump approximately 40 pressure strokes.
(4)
Stop when resistance becomes heavy.
(5)
Verify gear is down by observing green "DWN" light on.
(6)
With green "DWN" light on, stow handle and pull hand
pump pressure relief valve up for approximately five
seconds to equalize system pressure and permit
subsequent normal retraction, if desired.
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