Red Gear Unsafe Light And Horn Fail To Stop; Above Condition On Ground; Above Condition In The Air; Hydraulic Pump Shuts Off But Red Gear Unsafe Light Remains On - Piper PA-44-180 SEMINOLE Maintenance Manual

CHART 3201. TROUBLESHOOTING (LANDING GEAR) (cont)
Trouble
Red gear unsafe light and
horn fail to operate when
throttle is near closed and
Landing gear is retracted.
(cont)
Red gear unsafe light and
horn fail to stop when
throttle is closed and gear
has extended. (Gear ex-
tended through the use of
the free fall lever)
Red gear unsafe light and
horn fail to operate when
selector switch is moved
to up position with gear
extended and throttle not
full forward.
Above condition on
ground.

Above condition in the air.

Red gear unsafe light and
horn fail to shut off at full
throttle. Gear selector at
up position and gear
extended.
Hydraulic pump shuts off,
but red gear unsafe light
remains on.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
Cause
Diode in circuit between
throttle switch "A" and
light/ horn open.
Gear selector handle in up
position.
Warning light and horn
circuit wire broken.
Defective safety (squat)
switch.
Pressure switch open.
Throttle micro switch "B"
out of adjustment.
Throttle micro switch "B"
failed.
Gear not fully retracted.
2F20
Remedy
Replace diode.
— Note —
When replacing diode connect
banded end (cathode) to terminal
ends of wires G2Q and G2K on
mounting block.
Place handle in down
position.
Check wiring.
Replace switch.
Replace switch.
Adjust switch.
Replace switch.
Determine cause and
remedy.
Revised: May 15, 1989
3 2 - 0 2 - 0 0
Page 32-04