LEAK CHECK - METHOD II.
1. Remove the access panel at the rear of the cabin to gain access to the service valves.
2. Remove the protective cap on the high pressure Schrader valve fitting and connect a charging hose
with a shut-off valve arrangement to the fitting. The charging hose must have a Schrader fitting or adapter to
fit the valve.
3. Connect the other end of the charging hose to a small cylinder of refrigerant and purge the hose by
allowing a slight amount of refrigerant gas to escape from the Schrader valve fitting.
4. The cylinder of refrigerant should be placed upright in a container of warm (125° F max. water on a
small scale.)
5. Allow approximately 1/2 pound of refrigerant to enter the system by opening the valve on the charging
hose and observing the weight change on the scale.
6. Using an electronic leak detector, check all joints and repair any leaks.
7. After completion of repair of any leaks, proceed to check the system in accordance with one of the
methods outlined for any other leaks.
8. If no further repair is required on the system, it is now ready to evacuate in accordance with
DISCHARGING. (Required only if system contains refrigerant.)
—NOTE—
Applies to Kent Moore J23500 or similar charging station. (Refer
to Figure 21-10.)
1. Close all valves on charging station.
2. Connect red high pressure charging line to high pressure Schrader valve at the evaporator fitting.
3. Open valve (high pressure control) on charging station one turn.
4. Hold end of blue low pressure charging line in a shop rag and slowly open valve (low pressure
control) on charging station allowing refrigerant to exhaust from system into shop rag.
—CAUTION—
Refrigerant can cause freezing of skin. Be particularly careful
not to allow contact with the eyes.
Do not allow refrigerant to escape too rapidly, as excessive oil
may be carried out of system. When hissing stops, system is empty
and valve should be closed if no further work is planned.
21-50-10
Page 21-21
December 1, 1978
1F20
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
Содержание Arrow IV
Страница 18: ...CHAPTER AIRWORTHINESS LIMITATIONS 1A18...
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Страница 22: ...CHAPTER TIME LIMITS MAINT CHECKS 1A22...
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Страница 40: ...CHAPTER DIMENSIONS AND AREAS 1B16...
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Страница 53: ...CHAPTER LIFTING AND SHORING 1C5...
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Страница 57: ...CHAPTER LEVELING AND WEIGHING 1C9...
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Страница 62: ...CHAPTER TOWING AND TAXIING 1C14...
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Страница 66: ...CHAPTER PARKING AND MOORING 1C18...
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Страница 70: ...CHAPTER REQUIRED PLACARDS 1C22...
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Страница 77: ...CHAPTER SERVICING 1D5...
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Страница 110: ...CHAPTER STANDARD PRACTICES AIRFRAME 1E14...
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Страница 117: ...CHAPTER ENVIRONMENTAL SYSTEM 1E21...
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Страница 169: ...CHAPTER AUTO FLIGHT 1H1...
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Страница 176: ...CHAPTER COMMUNICATIONS 1H8...
Страница 185: ...CHAPTER ELECTRICAL POWER 1H17...
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Страница 233: ...CHAPTER FLIGHT CONTROLS 1J17...
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Страница 297: ...CHAPTER FUEL 2A18...
Страница 320: ...CHAPTER HYDRAULIC POWER 2B17...
Страница 355: ...CHAPTER LANDING GEAR 2D4...
Страница 418: ...CHAPTER LIGHTS 2F19...
Страница 430: ...CHAPTER NAVIGATION AND PITOT STATIC 2G7...
Страница 444: ...CHAPTER OXYGEN SYSTEM 2G21...
Страница 464: ...CHAPTER VACUUM SYSTEM 2H17...
Страница 473: ...CHAPTER ELECTRICAL ELECTRONIC PANELS AND MULTI PURPOSE PARTS 2I2...
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Страница 477: ...CHAPTER STRUCTURES 2I6...
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Страница 496: ...CHAPTER DOORS 2J1...
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Страница 505: ...CHAPTER STABILIZERS 2J10...
Страница 514: ...CHAPTER WINDOWS 2J19...
Страница 519: ...CHAPTER WINGS 2J24...
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Страница 550: ...CHAPTER PROPELLER 3A18...
Страница 565: ...CHAPTER STANDARD PRACTICES ENGINE 3B9...
Страница 568: ...CHAPTER POWER PLANT 3B12...
Страница 592: ...CHAPTER ENGINE FUEL AND CONTROL 3C12...
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Страница 611: ...CHAPTER IGNITION 3D7...
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Страница 655: ...CHAPTER ENGINE INDICATING 3F16...
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Страница 664: ...CHAPTER EXHAUST 3G1...
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Страница 669: ...CHAPTER OIL SYSTEM 3G6...
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Страница 673: ...CHAPTER STARTING 3G10...
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Страница 688: ...CHAPTER TURBINES 3H1...
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Страница 694: ...CHAPTER 91 CHARTS AND WIRING DIAGRAMS 3H7...
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Страница 739: ...CHAPTER 95 SPECIAL PURPOSE EQUIPMENT 3K1...
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