Green Gear Down Lights Dim Though Position Light Switch Is Off; Green Gear Down Light Fails To Go Out With Gear In Transit; Nose Landing Gear Shimmies During Fast Taxi, Takeoff Or Landing; Excessive Or Uneven Wear On Nose Tire - Piper PA-44-180 SEMINOLE Maintenance Manual

CHART 3201. TROUBLESHOOTING (LANDING GEAR) (cont)
Trouble
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 down lock is engaged
on roller.
Nose landing gear
shimmies during fast
taxi, takeoff or landing.
Excessive or uneven wear
on nose tire.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
Cause
Failed instrument panel
light control switch. (Lights
grounding through dimming
resistor instead of instrument
panel light control.)
Gear down limit switch
failed.
Green light ground
dimming resistor open.
Micro switch out of
adjustment.
Internal wear in shimmy
dampener.
Shimmy dampener or
bracket loose at mounting.
Tire out of balance.
Worn or loose wheel
bearings.
Worn torque link bolts
and/ or bushings.
Incorrect operating pressure.
Wear resulting from
shimmy.
2F21
Remedy
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.
Inflate tire to correct
pressure.
Refer to proceedings for
correction.
Revised: May 15, 1989
3 2 - 0 2 - 0 0
Page 32-05