Piper Arrow IV Turbo Maintenance Manual page 363

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)
Green gear down lights dim
though position light switch
is off, and gear is down and
locked.
Green gear down light fails
to go out with gear in transit
or retracted.
Green gear down lights will
go out and not dim when
position light switch is
turned on though gear is
down and locked.
Green gear down lights
blink momentarily before
the downlock is engaged on
roller.
Nose landing gear shimmies
during fast taxi, takeoff, or
landing.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
Cause
Diode in circuit between
throttle switch and light/
horn open.
Failed instrument panel
light control switch. (Lights
grounding through dimming
resistor instead of instru-
ment panel light contro1.)
Gear down limit switch
failed.
Green light ground dimming
resistor open.
Micro switch out of adjust-
ment.
Internal wear in shimmy
dampener.
Shimmy dampener or
bracket loose at mounting.
Tire out of balance.
Worn or loose wheel bear-
ings.
Worn torque link bolts
and/or bushings.
2D12
Remedy
Replace diode.
—NOTE—
When replacing diode, con-
nect banded end (cathode)
to terminal ends of wires
G2 and G2U.
Replace switch.
Replace switch.
Replace resistor.
Adjust micro switch.
Replace shimmy dampener.
Replace necessary parts
and bolts.
Check balance and replace
tire if necessary.
Replace and/or adjust wheel
bearings.
Replace bolts and/or
bushings.
32-00-02
Page 32-05
December 1, 1978