TM 55-1510-219-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
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 entire aircraft is
functioning properly perform the maximum
2-57
