STANDARD PRACTICES - AIRFRAME.
A. General
This chapter contains general information pertaining to standard aircraft hardware installation and
removal practices.
The information included will be very helpful if it is referred to on a regular basis.
If non-destructive testing is needed after repair of 4130 steel, use the magnaflux method.
Testing and inspecting of aluminum castings and machined aluminum parts may be done by the dye
penetrant method.
Usually, a good visual inspection with a 10X magnifying glass will show any damage or defect in a
repair that is of a significant nature.
B. Torque Wrenches
Torque wrenches should be checked daily and calibrated by means of weights and a measured lever
arm to make sure that inaccuracies are not present. Checking one torque wrench against another is not
sufficient and is not recommended. Some wrenches are quite sensitive as to the way they are supported
during a tightening operation. Any instructions furnished by the manufacturer must be followed
explicitly.
When it is necessary to use a special extension or adapter wrench together with a torque wrench, a
simple mathematical equation must be worked out to arrive at the correct torque reading. Following is
the formula to be used: (Refer to Figure 1.)
T = Torque desired at the part.
A = Basic lever length from center of wrench shank to center of handle or stamped on wrench or
listed for that model wrench.
B = Length of adapter extension, center of bolt to center of shank.
C = Scale reading needed to obtain desired torque (T).
The formula:
C = A x T
A + B
EXAMPLE: A bolt requires 30 foot pounds and a 3 inch adapter (one-quarter of a foot or
0.25’) is needed to get at it. You want to know what scale reading it will take on
a one-foot lever arm wrench to obtain the 30 foot pounds at the bolt.
C = 1 x 30
or C = 30
1 + 0.25
1.25
Remember, the 3 inch adapter must be projecting 3 inches straight along the wrench axis. In
general, avoid all complex assemblages or adapters and extensions of flex joints.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
20-00-00
Page 20-1
Reissued: July 1, 1993
1G19
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 ...