265 Shannon Lane
Priest River ID 83856
TITLE: Supplemental Airplane Flight Manual
A-10060
03/04/15
Cessna 206 on Model 3400 Floats
REVISION: D
FAA Approved
NOTE
The emergency hand pump selector valve must be rotated to the OFF
position (in a detent with the end of the handle pointing toward the
pilot seat) during normal system operation. If the selector valve is in
any other position, it provides a by-pass for hydraulic pressure and the
landing gear may not function properly. During deceleration after a
water touchdown, with the gear extended, the float bows will submerge
and there is a high probability of flipping the amphibian onto its back
causing either fatal or serious injury.
EMERGENCY HAND PUMP SELECTOR VALVE AND HAND
PUMP: (Cont’d)
Prior to utilizing the emergency hand pump, pull the LANDING GEAR
MOTOR circuit breaker to ensure deactivation of the electric hydraulic
pump, then rotate the hand pump selector valve to the desired position (UP
or DOWN). Actuate the hand pump up and down (approximately 230
strokes for extension and 165 strokes for retraction) until the landing gear
reaches the selected position. When the gear reaches the selected position,
the appropriate gear position indicator lights will illuminate and the hand
pump should be pumped until there is significant force on the pump handle
with the final stroke. For complete emergency procedures, refer to Section 3
of this supplement.
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