Landing Gear Flashcards
When should the PWR STEER sw be placed to OFF?
In the event of a hydraulic leak of either the brakes, swivel locks, or power steering
What provides a source of pressure for brake operation when the PWR STEER sw is OFF?
Brake accumulator
What procedure should you use to Restore power steering control if the PWR STEER caution light comes on while taxiing?
Landing gear must be returned to within operation limits and switch must be cycled between STEER and UNLOCK
What provides a source of pressure for swivel lock operation when the PWR STEER switch is OFF?
PWR STEER module accumulator
How much pressure should be in the brake accumulator on preflight?
600-1400 psi
What should be the position of the swivel switch for all takeoffs and landings?
Lock
Which three sub systems are affected by the power steer switch?
Brakes, swivel lock, and PWR steering
With the swivel switch on the steer position, what automatic DAFCS function is disabled?
Heading hold
The turning limits for the CH47 are ______ degrees left and _____ degrees right
58
82
What is the purpose of the aft wheel swivel locks?
To lock the wheels in Trail position
What are the three positions of the swivel switch?
Steer\unlock\lock
Which landing gear assembly is steered by using the steering control knob in the cockpit?
Aft right
The pressure reducer reduces the normal System Pressure from _______ psi to ________ psi for brake operation.
3,000 psi
1,390 psi
The air/oil shocks struts utilize ______ to absorb shock and ______ to dampen movement
Air
Oil
Pressure to the centering cam piston is applied when the swivel switch is placed to the what position?
LOCK
Power Steering/Swivel Lock Module
