Loss Of Fuel Pressure; High Oil Temperature; Electrical Failure - Piper PA 28-181 Manual

PIPER AIRCRAFT CORPORATION
PA-2t.1ü, ARCHEn U
sEcTtoN 3
EMERGENCY PNOCEDURES
3.I9 LOSS OF FUEL PRESSURE
If loss offuet pr€ssure occurs, turn ON the el€.tric fuel pump altd check
that lh€ fuel selector is on a full tank.
If the problem is not anempty tank,land as soon as practical and havc
the €ngin€ driven fuel pump and fuel system checked.
3.21 HIGH OIL TEMPERATURE
An abnormally high oillemperature indication may b€ caused by a low
oil level,an obstruction in the oil cooler, damaged orimprop€rbaffle seals, a
defe€tive gaug€, or other causes. Irnd as soonas practical at an appropriate
airport and have the cause inv€stigated.
A steady, rapid rise in oil temperatur€ i! a sign of trouble. l-and ar th€
nearest airport and let a mechanic investigate the problem. Watch the oil
pressure gauge for an accompanying loss of pressure.
3.23 ELECTRICAL FAILURES
Loss oi alt€rnaior outpur is detected through zero rerding on ihe
ammeter. Before executing the following procedure, insure that thereadinS
is z€ro and not merelylow byactuatingan elcctrically powered device, such
as the landing light. If no incr€ase id the amm€ter reading is noted,
alternator failure can be assumed.
The electrical load should be reduc€d as much as possible. Ch€ck rhe
alernätor circuit breakers for a popped circuir.
The next step is to attempt to reset the overvoltage relay. This is
accomplishcd by moving the ALT switch to OFFfor one s€cond and then to
ON. lf the trouble was caused by a momentary overvolrage condition ( 16.5
volts and up) this procedureshould return th€ammcrerto anormalreading.
lf the ammeter conrinues to indicate 'tr" outDur. or ifthe altefnatorwill
nor remain reser. rurn offthe ALTssirch, maindrn mrnimum elecrricatload
and land as soon as practical. All el€ctrical load is being supplied by the
battery.
ISSUED: JULY 2, !979
REVISEDT JANUARY 14, l9El
REPORT: v&1120
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