Piper Arrow IV Turbo Maintenance Manual page 29

Perform all inspections or operations at each of the inspection
intervals as indicated by a circle (O). (See Notes 1, 2 and 3.)
D. ENGINE GROUP (LYCOMING) (cont)
12. Inspect condition of spark plugs (Clean and adjust gap as required,
per latest revision of Lycoming Service Instruction No. 1042)..........
NOTE: If fouling of spark plugs has been apparent, rotate bottom
plugs to upper plugs, and vice versa.
13. Inspect spark plug cable leads and ceramics for corrosion and
deposits ...............................................................................................
14. Check cylinder compression (Refer to latest revision of Lycoming
Service Instruction No. 1191).............................................................
15. Inspect cylinders for cracked or broken fins (See Note 12)................
16. Inspect rocker box covers for evidence of oil leaks. If found, replace
gasket; torque cover screws 50 inch-pounds (See Note 11) ...............
NOTE: Lycoming requires a valve inspection be made after every
400 hours of engine operation. (See Note 11.)
17. Inspect ignition harness and insulators (high tension leakage and
continuity)...........................................................................................
18. Inspect magneto points for condition and proper clearance ...............
19. Inspect magneto for oil leakage..........................................................
20. Inspect breaker felts for proper lubrication.........................................
21. Inspect distributor block for cracks, burned areas or corrosion
and height of contact springs ..............................................................
22. Check magnetos to engine timing.......................................................
23. Overhaul or replace magnetos (See Note 7)
24. Remove air filter and tap gently to remove dirt particles (Replace
as required)..........................................................................................
25. Clean fuel injector inlet line screen (Clean injector nozzles as
required) (Clean with acetone only)....................................................
26. Inspect condition of injector, alternate air door and box
(See Note 9) ........................................................................................
27. Inspect vent lines for evidence of fuel or oil seepage.........................
28. Inspect intake seals for leaks and clamps for tightness.......................
29. Inspect all air inlet duct hoses (Replace as required)..........................
30. Inspect condition of flexible fuel lines................................................
31. Replace flexible fuel lines (See Note 7)..............................................
32. Clean gascolator bowl and screens.....................................................
33. Inspect fuel system for leaks...............................................................
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
PERIODIC INSPECTIONS. (cont)
—NOTE—
Nature of Inspection
1B5
Inspection Time (hrs)
50 100 500
O O
O O O
O O
O O
O O O
O O
O O
O O
O O
O
O O
O O O
O O O
O O O
O O O
O O O
O O O
O O
O O O
O O O
5-20-01
Page 5-06
Revised: December 21, 1981
1000
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O