GENERAL.
OIL COOLER.
INSTALLATION OF OIL COOLER.
1. When installing fittings in the oil coolers, care should be used to prevent excessive torque being applied to
the cooler. When a rectangular fitting boss is provided, a backup wrench should be used, employing a
scissor motion, so that no load is transmitted to the cooler. When the oil cooler has a round fitting boss, care
should be taken not to permit excessive torque on the fittings.
2. If a pipe thread fitting is used, it should be installed only far enough to seal with sealing compound.
3. Apply Lubon No. 404 to all male pipe thread fittings, do not allow sealant to enter the system.
4. When installing hoses and fittings make sure a minimum of .5 inch clearance is maintained between hose
and engine mount, and .12 inch between hose and oil filter case.
5. If fitting cannot be positioned correctly using a torque of 10 to 15 foot-pounds, another fitting should be
used.
6. When attaching lines to the cooler, a backup wrench should be used.
7. After installation, inspect the cooler for distorted end cups.
8. Run-up engine, after run-up check for oil leaks.
— Note —
Winterization plates should be installed between oil cooler seal and engine baff l e
when ambient temperature is below 50° F.
INDICATING.
OIL PRESSURE.
REMOVAL OF OIL PRESSURE SENDERS.
There are two sending units for each engine. One for oil pressure and the other for a warning light. Both units
are mounted on a common manifold located behind each engine firewall. The upper unit is for the pressure
gauge and the lower unit is for the warning light. Access to the units is through access panels on each side of the
forward nacelle. Removal is accomplished by the following:
1. Disconnect the electrical leads from the particular unit. It is suggested that the leads be marked for easy
connection upon reinstallation of the sensor.
2. Unscrew the unit from the manifold.
3. catch spillage and cover the fitting on the manifold to prevent foreign matter from entering the system.
OIL PRESSURE SENDER TEST. (Refer to Chart 7901)
The oil pressure sender works on the relationship of pressure to resistance. As the pressure increases so does
the resistance and inturn alters the position of the needle of the instrument.
To test the sender the following procedure should be followed:
1. Connect a calibrated pressure source to the pressure port.
2. Attach ohmmeter leads to the one pole extending from the sender and one to the sender itself.
3. Raise and lower the pressure to the sender and crosscheck with the required tolerances in Chart 7901.
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
7 9 - 3 1 - 0 2
Page 79-01
Revised: May 15, 1989
3I3
PIPER AIRCRAFT
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...