TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
LOW SPEED SYSTEMS CHECK (CONT)
a.
Airspeed - 130 KIAS.
b.
Landing gear relay circuit breaker - Out (pulled).
c.
Landing gear control switch - DN.
d.
Landing gear alternate engage handle - Lift and turn clock- wise to the stop (one quarter turn).
e.
Alternate landing gear extension handle - Pump. The lever actuates a double-acting ratchet and
requires little effort to operate. About 70 complete strokes of the lever will be required to lower and
lock the gear.
f.
Gear down indicator lights (3) - Monitor. Stop pumping ratchet when gear down indicator lights are
illuminated.
CAUTION
As full extension is approached, proceed cautiously, and stop
when the green lights come on, or resistance is felt in the
handle. Further movement of the handle could damage the
driving mechanism and impair subsequent retraction.
DESCENT AND LOW LEVEL CRUISE
* 1. Maximum rate (Vmo) descent. If the test pilot is satisfied that the
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