8. If the test set lights are NOT ON, rotate the required generator (in the opposite direction of the other)
on its bracket to its exact point the light comes on. If BOTH LIGHTS ARE OFF on the test set, rotate
the generators to their timing mark alignments. Remember to turn opposing generators in opposite
directions in reference to viewing each through their access holes.
— NOTE —
Any time a question develops as to the condition of a generator,
test the generator as explained in Figure 61-7.
9. Tighten the reliance nuts as much as possible to prevent the generators from turning; cross mark the
generators to their brackets.
10. Carefully remove bracket and generator.
11. Check mark on bracket and generator to make sure the generator has not moved, and tighten the
reliance nuts on the generators to secure them on their brackets. Bend the tab washer to lock the
reliance nut in place.
12. Permanently install assemblies and perform the ground test.
13. Check to make sure the propeller synch switch is in the manual position.
POST INSTALLATION CHECK.
1. Refer to the wiring diagram in Chapter 91 and check that all wiring has been correctly installed.
2. Check continuity between the pins of the Amphenol plug, 57-30140, to see that any two pins are not
shorted together. This usually occurs between pins that are side by side. Plug the harness into the compute r.
3. Connect a DC ammeter with at least a two amp scale in series with one of the governor wires. Refer to
the wiring diagram to be sure the ammeter is connected with the proper polarity. The solenoid coil
gets its power from pin 13 of the Amphenol 57-30140 plug.
4. Put the prop-synch switch in the MANUAL position and turn the ship’s master switch on. The current
reading should go immediately to about one amp and rest there. Turn the master switch off and connect
the governor wire into the harness.
5. Connect a voltmeter from pin C of the MS3106A 10SL-3S plug at the pulse generator to ground. With
the master switch ON, rotate the engine either direction. The voltage reading should alternate from
zero to about twelve volts once for every two revolutions of the propeller.
— NOTE —
See Figure 61-7 for a backup check on the pulse generators.
FLIGHT CHECK.
PPS-55041C
— NOTE —
This operation must be conducted by two people; one to concentrate
on flying and the other to conduct the check procedure.
1. Before starting engines make sure the prop-synch switch is in the manual position.
2. Attain a cruise altitude and set the power controls at 75% power.
3. Beat synchronize the propellers manually.
4. Increase or decrease the propeller speed by 30 RPM with the propeller control.
5. Move the prop-synch switch to its auto-synch position. If synchronization is not accomplished, repeat
the above procedure but using 25 RPM instead of 30 RPM.
6. If synchronization still is not accomplished repeat the Ground and Installation Checks.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
61-10-00
Page 61-14
Revised: May 15, 1989
3D16
Summary of Contents for SEMINOLE PA-44-180
Page 38: ...CHAPTER DIMENSIONS AND AREAS 1B14...
Page 49: ...CHAPTER LIFTING AND SHORING 1C1...
Page 53: ...CHAPTER LEVELING AND WEIGHING 1C5...
Page 58: ...CHAPTER TOWING AND TAXIING 1C10...
Page 62: ...CHAPTER PARKING AND MOORING 1C14...
Page 65: ...CHAPTER REQUIRED PLACARDS 1C17...
Page 70: ...CHAPTER SERVICING 1C22...
Page 98: ...CHAPTER STANDARD PRACTICES AIRFRAME 1E2...
Page 108: ...CHAPTER ENVIRONMENTAL SYSTEM 1E12...
Page 189: ...CHAPTER AUTOFLIGHT 1H21...
Page 192: ...CHAPTER COMMUNICATIONS 1H24...
Page 202: ...CHAPTER ELECTRICAL POWER 1I10...
Page 228: ...CHAPTER EQUIPMENT FURNISHINGS 1J12...
Page 233: ...CHAPTER FIRE PROTECTION 1J17...
Page 238: ...CHAPTER FLIGHT CONTROLS 1J24...
Page 304: ...2A18 CHAPTER FUEL...
Page 325: ...2B17 CHAPTER HYDRAULIC POWER...
Page 357: ...2D1 CHAPTER ICE AND RAIN PROTECTION...
Page 414: ...CHAPTER LANDING GEAR 2F13...
Page 479: ...2I6 CHAPTER LIGHTS...
Page 488: ...2I16 CHAPTER NAVIGATION AND PITOT STATIC...
Page 503: ...2J7 CHAPTER OXYGEN...
Page 524: ...2K6 CHAPTER VACUUM...
Page 535: ...2K19 CHAPTER ELECTRICAL ELECTRONIC PANELS AND MULTIPURPOSE PARTS...
Page 546: ...INTENTIONALLY LEFT BLANK PA 44 180 180T AIRPLANE MAINTENANCE MANUAL 2L6 PIPER AIRCRAFT...
Page 547: ...2L7 CHAPTER STRUCTURES...
Page 582: ...CHAPTER DOORS 3A18...
Page 593: ...CHAPTER STABILIZERS 3B8...
Page 604: ...CHAPTER WINDOWS 3B22...
Page 611: ...CHAPTER WINGS 3C10...
Page 624: ...CHAPTER PROPELLER 3D1...
Page 643: ...CHAPTER POWER PLANT 3D21...
Page 667: ...CHAPTER ENGINE FUEL SYSTEM 3F1...
Page 681: ...CHAPTER IGNITION 3F16...
Page 712: ...CHAPTER ENGINE INDICATING 3H1...
Page 730: ...CHAPTER EXHAUST 3H19...
Page 734: ...CHAPTER OIL 3I1...
Page 743: ...CHAPTER STARTING 3I11...
Page 755: ...CHAPTER TURBINES 3J1...