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BATTERY BOX CORROSION PREVENTION.
The battery should be checked for spilled electrolyte or corrosion at least each 50 hour inspection or at
least every 30 days, whichever comes first. Should this be found in the box, on the terminals or around the
battery, the battery should be removed and both the box and battery cleaned by the following procedure:
1. Remove the box drain cap and drain off any electrolyte that may have overflowed into the box.
2. Clean the battery and the box. Corrosion effects may be neutralized by applying a solution of baking
soda and water mixed to a consistency of thin cream. The application of this mixture should be applied until all
bubbling action has ceased.
—CAUTION—
Do not allow soda solution to enter battery.
3. Rinse the battery and box with clean water and dry.
4. Place the cap over the battery box drain.
5. Reinstall the battery.
VOLTAGE REGULATOR. (Wico)
CHECKING VOLTAGE REGULATOR.
The regulator is a fully transistorized unit in which all of the components are encapsulated in epoxy, which
makes field repair of the unit impractical, and if it does not meet the specifications, it must be replaced. The
regulator may be tested by the following procedure:
1. Be sure that the battery is fully charged and in good condition.
2. Check the alternator according to the manufacturer’s instructions, to determine if it is functioning
properly. This test must be done with the regulator out of the circuit. After completing this test, reconnect the
regulator into the circuit.
3. Use a good quality accurate voltmeter with at least a 15-volt scale.
4. Connect the positive voltmeter lead to the red wire at the regulator harness connector, or terminal
block. Connect the negative voltmeter lead to the regulator housing. Note: Do not connect the voltmeter across
the battery, because the regulator is designed to compensate for resistance contained within the wiring harness.
5. With the alternator turning at sufficient rpm to produce a half load condition, or approximately 25
amperes output, the voltmeter should read between 13.6 and 14.3-volts. The ambient temperatures surrounding
the voltage regulator should be between 50°F to 100°F while this test is being made.
24-35-01
Page 24-38
Revised: February 23, 1979
1J9
PIPER AIRCRAFT
PA-28RT-201 / 201T
*MAINTENANCE MANUAL
Summary of Contents for Arrow IV
Page 18: ...CHAPTER AIRWORTHINESS LIMITATIONS 1A18...
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Page 22: ...CHAPTER TIME LIMITS MAINT CHECKS 1A22...
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Page 40: ...CHAPTER DIMENSIONS AND AREAS 1B16...
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Page 53: ...CHAPTER LIFTING AND SHORING 1C5...
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Page 57: ...CHAPTER LEVELING AND WEIGHING 1C9...
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Page 62: ...CHAPTER TOWING AND TAXIING 1C14...
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Page 66: ...CHAPTER PARKING AND MOORING 1C18...
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Page 70: ...CHAPTER REQUIRED PLACARDS 1C22...
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Page 77: ...CHAPTER SERVICING 1D5...
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Page 110: ...CHAPTER STANDARD PRACTICES AIRFRAME 1E14...
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Page 117: ...CHAPTER ENVIRONMENTAL SYSTEM 1E21...
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Page 169: ...CHAPTER AUTO FLIGHT 1H1...
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Page 176: ...CHAPTER COMMUNICATIONS 1H8...
Page 185: ...CHAPTER ELECTRICAL POWER 1H17...
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Page 233: ...CHAPTER FLIGHT CONTROLS 1J17...
Page 297: ...CHAPTER FUEL 2A18...
Page 320: ...CHAPTER HYDRAULIC POWER 2B17...
Page 355: ...CHAPTER LANDING GEAR 2D4...
Page 418: ...CHAPTER LIGHTS 2F19...
Page 430: ...CHAPTER NAVIGATION AND PITOT STATIC 2G7...
Page 444: ...CHAPTER OXYGEN SYSTEM 2G21...
Page 464: ...CHAPTER VACUUM SYSTEM 2H17...
Page 473: ...CHAPTER ELECTRICAL ELECTRONIC PANELS AND MULTI PURPOSE PARTS 2I2...
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Page 477: ...CHAPTER STRUCTURES 2I6...
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Page 496: ...CHAPTER DOORS 2J1...
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Page 505: ...CHAPTER STABILIZERS 2J10...
Page 514: ...CHAPTER WINDOWS 2J19...
Page 519: ...CHAPTER WINGS 2J24...
Page 550: ...CHAPTER PROPELLER 3A18...
Page 565: ...CHAPTER STANDARD PRACTICES ENGINE 3B9...
Page 568: ...CHAPTER POWER PLANT 3B12...
Page 592: ...CHAPTER ENGINE FUEL AND CONTROL 3C12...
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Page 611: ...CHAPTER IGNITION 3D7...
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Page 655: ...CHAPTER ENGINE INDICATING 3F16...
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Page 664: ...CHAPTER EXHAUST 3G1...
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Page 669: ...CHAPTER OIL SYSTEM 3G6...
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Page 673: ...CHAPTER STARTING 3G10...
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Page 688: ...CHAPTER TURBINES 3H1...
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Page 694: ...CHAPTER 91 CHARTS AND WIRING DIAGRAMS 3H7...
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