Piper Comanche PA-24 Service Manual page 177

B. Procedures
Procedures not shown here will be in the applicable system subject section.
(1) ELECTRIC TRIM SWITCH INSPECTION.
NOTE: Installation of Kit No. 760-505 relieves this inspection requirement.
In PA-24-260 S/N's 24-4783, 24-4804 thru 24-4953, 24-4955 thru 24- 4959, 24-4962 and 24-4964,
for airplanes with a pilot control wheel-mounted "rocker"- type trim switch; or, in PA-24-260
S/N's 24-4783, 24-4804 and up, for airplanes with field-installed Kit No. 760-273 or Kit No.
760-326 that have not subsequently installed Kit No. 760-505;
pilot's control wheel-mounted "rocker"- type trim switch for proper operation as follows:
(a) Move the switch knob fore and aft: the trim tab indicator should move in the appropriate
direction.
(b) When the switch is released at the fore or aft position, the switch should consistently
return to the "off" (neutral) position.
(c) If the switch does not operate as described above, it must be replaced, repaired or
modified in accordance with Kit No. 760-505 instructions, before use in flight.
(d) Should a switch malfunction occur in a location where parts/service facilities are not
available, the aircraft can be flown to a service facility by installing a temporary placard
(as follows) in a conspicuous location on instrument panel:
"Pull Electric Trim Circuit Breaker until compliance with
Piper Service Bulletin No. 331 has been achieved."
(2) EXHAUST SYSTEM INSPECTION. (Refer to Figure 3-5 thru 3-7.)
WARNING: A VERY THOROUGH INSPECTION OF THE ENTIRE EXHAUST SYSTEM,
The possibility of exhaust system failure increases with use. It is recommended that the system
be checked more carefully as the number of hours increase, therefore inspection at the 700
hour period, that the exhaust system has been in use would be more critical than ones in the
100 hour period. The system should also be checked carefully before winter operation when
the cabin heat will be in use.
NOTE: Piper recommends that all PA-24 airplanes be fitted with a new muffler at or near the
1000 hour period of which the muffler has been used.
CAUTION: WHEN REMOVING OR INSTALLING COUPLING CLAMP, SLIDE CLAMP
NOTE: When installing an exhaust clamp having an alignment pin be certain that the pin
engages the mating holes in exhaust pipe and muffler to prevent separation of
components.
04/01/09
PIPER COMANCHE SERVICE MANUAL
INCLUDING EXHAUST HEATER SHROUD ASSEMBLY, MUFFLER AND
MUFFLER BAFFLES, STACKS AND ALL EXHAUST CONNECTIONS AND
WELDS MUST BE ACCOMPLISHED AT EACH 100 HOUR INSPECTION.
OVER END OF PIPE BEFORE ASSEMBLY / DISASSEMBLY. EXCESSIVE
SPREADING CAN LEAD TO PREMATURE FAILURE OF CLAMP.
1D39
prior to each flight inspect the
III - INSPECTION