FLIGHT INSTRUMENTS PITOT/STATIC
VERTICAL SPEED INDICATOR
Vertical speed indicator measures rate of change in static pressure when airplane is climbing or descending. By
means of a pointer and dial this instrument will indicate a rate of ascent or descent of airplane in feet per
minute. But due to lag of the instrument, aircraft will be climbing or descending before instrument starts to
read and instrument will continue to read after aircraft has assumed level flight. In rough air this should not be
considered a malfunction.
CHART 1
TROUBLESHOOTING VERTICAL SPEED INDICATOR
– NOTE –
When any connections in static system are opened for check-
ing, system must be rechecked per F.A.R. 23.1325.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
34-10-00
Page 34-5
Reissued: July 1, 1993
3E18
Trouble
Cause
Remedy
Pointer does not set on zero.
Aging of diaphragm.
Reset pointer to zero by means
of setting screw. Tap
instrument while resetting.
Pointer fails to respond.
Obstruction in static line.
Disconnect all instruments
connected to the static line.
Clear line.
Pitot head frozen over.
Water in static line.
Check individual instrments
for obstruction in lines.
Obstruction in pitot head.
Clean lines and head.
Pointer oscillates.
Leak in static lines.
Disconnect all instruments
connected to the static line.
Check individual instrments
for leaks. Reconnect instru-
ments to static line and test
installation for leaks.
Defective mechanism.
Replace instrument.
Vertical speed indicates when
Water in static line.
Disconnect static lines and
aircraft is banked.
blow out lines from cockpit
out to pitot head.
Pointer has to be set before every
Temperature compensator
Replace instrument.
flight.
inoperative.
Pointer cannot be reset to zero.
Diaphragm distorted.
Replace instrument.
Instrument reads very low
Case of instrument broken or
Replace instrument.
during climb or descent.
leaking.
Summary of Contents for PA-32R-301T SARATOGA S
Page 26: ...CHAPTER 4 AIRWORTHINESS LIMITATIONS 1C1 ...
Page 29: ...CHAPTER 5 TIME LIMITS MAINTENANCE CHECKS 1C4 ...
Page 53: ...CHAPTER 6 DIMENSIONS AND AREAS 1D6 ...
Page 64: ...CHAPTER 7 LIFTING AND SHORING 1D21 ...
Page 68: ...CHAPTER 8 LEVELING AND WEIGHING 1E1 ...
Page 72: ...CHAPTER 9 TOWING AND TAXIING 1E5 ...
Page 76: ...CHAPTER 10 PARKING AND MOORING 1E9 ...
Page 80: ...CHAPTER 11 REQUIRED PLACARDS 1E13 ...
Page 92: ...CHAPTER 12 SERVICING 1F1 ...
Page 126: ...CHAPTER 20 STANDARD PRACTICES AIRFRAME 1G17 ...
Page 127: ...THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 139: ...CHAPTER 21 ENVIRONMENTAL SYSTEMS 1H5 ...
Page 188: ...CHAPTER 22 AUTOFLIGHT 1J7 ...
Page 193: ...CHAPTER 23 COMMUNICATIONS 1J12 ...
Page 203: ...CHAPTER 24 ELECTRICAL POWER 1J22 ...
Page 263: ...CHAPTER 25 EQUIPMENT FURNISHINGS 2A13 ...
Page 269: ...CHAPTER 27 FLIGHT CONTROLS 2A20 ...
Page 332: ...CHAPTER 28 FUEL 2D11 ...
Page 363: ...CHAPTER 29 HYDRAULIC POWER 2E18 ...
Page 404: ...CHAPTER 30 ICE AND RAIN PROTECTION 2G16 ...
Page 470: ...CHAPTER 32 LANDING GEAR 3A13 ...
Page 550: ...CHAPTER 33 LIGHTS 3D24 ...
Page 562: ...CHAPTER 34 NAVIGATION AND PITOT STATIC 3E12 ...
Page 582: ...CHAPTER 35 OXYGEN 3F8 ...
Page 604: ...CHAPTER 37 VACUUM 3G6 ...
Page 616: ...CHAPTER 39 3G18 ELECTRIC ELECTRONIC PANELS MULTIPURPOSE PARTS ...
Page 620: ...CHAPTER 51 STRUCTURES 3G22 ...
Page 636: ...CHAPTER 52 DOORS 3H14 ...
Page 650: ...CHAPTER 55 STABILIZERS 3I4 ...
Page 662: ...CHAPTER 56 WINDOWS 3I16 ...
Page 670: ...CHAPTER 57 WINGS 3I24 ...
Page 688: ...CHAPTER 61 PROPELLER 3J18 ...
Page 704: ...CHAPTER 70 STANDARD PRACTICES ENGINES 3K10 ...
Page 708: ...CHAPTER 71 POWER PLANT 3K14 ...
Page 737: ...CHAPTER 73 ENGINE FUEL SYSTEM 4A13 ...
Page 749: ...CHAPTER 74 IGNITION 4B1 ...
Page 783: ...CHAPTER 77 ENGINE INDICATING 4C11 ...
Page 793: ...CHAPTER 78 EXHAUST 4C21 ...
Page 801: ...CHAPTER 79 OIL 4D5 ...
Page 805: ...CHAPTER 80 STARTING 4D9 ...
Page 819: ...CHAPTER 81 TURBINES 4D23 ...
Page 833: ...CHAPTER 91 CHARTS WIRING DIAGRAMS 4E13 ...