Piper Arrow IV Turbo Maintenance Manual page 36

NOTES:
1. Refer to the last card of the Piper parts price list - Aerofiche, for a check list of current revision dates
to Piper inspection reports and manuals.
2. All inspections or operations are required at each inspection interval as indicated by a (O). Both the
annual and 100 hour inspections are complete inspections of the airplane, identical in scope, while both the
500 and 1000 hour inspections are extensions of the annual or 100 hour inspections, which require a more
detailed examination of the airplane, and overhaul or replacement of some major components. Inspections
must be accomplished by persons authorized by the FAA.
3. Piper service bulletins are of special importance and Piper considers compliance mandatory.
4. Piper service letters are product improvements and service hints pertaining to servicing the airplane
and should be given careful attention.
5. Inspections given for the Lycoming power plant are based on the engine manufacturer's operator's
manual (Lycoming Part No. 60297- 12) for this airplane, dated August 1973. Any changes issued to the engine
manufacturer's operator's manual after this date supersede or supplement the inspection outlined in this report.
6. Inspections given for the Continental power plant are based on the engine manufacturer's operator's
manual (Continental Part No. X-30512) for this airplane, dated June 1976. Any changes issued to the engine
manufacturer's operator 's manual after this date shall supersede or supplement the inspection outlined in this
report.
7. Replace or overhaul as required or at engine overhaul. For engine overhaul, refer to one of the
following: latest revision of Lycoming Service Letter L201, for recommended engine overhaul period, or latest
revision of Continental Service Bulletin No. M74-20, for recommended engine overhaul period.
8. Replace flexible oil lines as required, but no later than 1000 hours of service.
9. Check throttle body attaching screws for tightness; the correct torque for these screws is 40 to 50 inch-
pounds.
10. Rotate spark plugs from upper to lower positions and vice versa to lengthen plug life.
11. At every 400 hours of engine operation, remove the rocker box covers and check for freedom of valve
rockers when valves are closed. Look for evidence of abnormal wear or broken parts in the area of the valve
tips, valve keeper, springs and spring seat. If any indications are found, the cylinder and all of its components
should be removed (including the piston and connecting rod assembly) and inspected for further damage.
Replace any parts that do not conform with limits shown in the latest revision for Lycoming Service Table of
Limits No. SSP-1776.
12. Check cylinders for evidence of excessive heat indicated by burned paint on the cylinders. This
condition is indicative of internal damage to the cylinder and, if found, its cause must be determined and
corrected before the aircraft is returned to service.
Heavy discoloration and appearance of seepage at the cylinder head barrel attachment area is usually due
to emission of thread lubricant used during assembly of the barrel at the factory, or by slight gas leakage which
stops after the cylinder has been in service for awhile. This condition is neither harmful nor detrimental to
engine performance and operation. If it can be proven that leakage exceeds these conditions, the cylinder
should be replaced.
13. If the altimeter is damaged, defective, or inaccurate, work must be done by an FAA approved
instrument repair facility only, and a logbook entry made.
14. Refer to latest revision of Continental Motors Service Bulletin M73-19.
15. The compressor oil level should not be checked unless a Freon leak has occurred which requires an
addition of Freon to the system.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
PERIODIC INSPECTIONS (cont)
1B12
Interim Revision: September 21, 1986
5-20-01
Page 5-13