Piper PA-24 Comanche Service Manual page 25

PIPER COMANCHE SERVICE MANUAL
2-7. Torque Requirements. The torque values given in Table II-II are derived from oil-free cadmium-Pie
threads and are recommended for all airframe installation procedures where torquing is required. unk
otherwise noted in sections where other values are stipulated. Engine torque values are found in the latest
revision of
Avec-Lycoming
Service Bulletin No. 268. Propellertorquevaluesarefound in Sections VIl. VilA.
VIlB and VIlC of this manual. Table 1I-IlA lists the torque values for flared fittings of various sizes and
materials.
2-7a. 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.
CAUTION
Do not overtorque fittings.
NOTE
When flared fittings are being installed, ascertain that the male
threads are properly lubricated. Torque fittings in accordance with
Table 1l-11A.
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 2-8a.) •
2-8 Handhold and Walkways. A fixed handhold is located on the right side ofthe fuselage. above the re...
window. Walkways of four parts Devoe non-skid compound and one part black enamel are painted on the
right wing and flap.
CAUTION
Avoid damage to the wings by stepping only on the walkway.
2-9. Ground Handling.
2-10. Introduction to Ground Handling. Ground handling covers all essential information governing and
handling of the airplane while on the ground. This includes jacking, weighing. leveling. mooring. parking.
towing and taxiing. When the airplane is handled in the manner described in the following paragraphs.
damage to the airplane and its equipment will be prevented.
•
HANDLING AND SERVICING
REVISED: 4/10/81
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