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ILLUSTRATED LIST OF MANUFACTURED ITEMS - continued - TM-9-2320-386-24-1-20665
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/.5ton/TM-9-2320-386-24-1-2 Extended Service Program (ESP) for 2-1/2-Ton 6x6 M44A3 Series Trucks (Diesel) Manual
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Table 1. Torque Limits for Dry Fasteners. - TM-9-2320-386-24-1-20667
TM 9-2320-386-24-1-2
TORQUE LIMITS
GENERAL
This section provides general torque limits for screws used on M35A3, M35A3C, and M36A3 vehicles.
Special torque limits are indicated in the maintenance procedures for applicable components. The general
torque limits given in this work package shall be used when specific torque limits are not indicated in the
maintenance procedure. These general torque limits cannot be applied to screws that retain rubber
components. The rubber components will be damaged before the correct torque limit is reached. If a special
torque limit is not given in the maintenance instructions, tighten the screw or nut until it touches the
metal bracket, then tighten it one more turn.
TORQUE TABLES
Table 1 lists dry torque limits. Dry torque limits are used on screws that do not have lubricants applied
to the threads. Table 2 lists wet torque limits. Wet torque limits are used on screws that have high
pressure lubricants applied to the threads. For metric fasteners, refer to table 3 for torque limit
requirements.
HOW TO USE TORQUE TABLES
1.
Measure the diameter of the screw you are installing.
2.
Count the number of threads per inch.
3.
Under the heading SIZE, look down the left hand column until you find the diameter of the screw you
are installing. (There will usually be two lines beginning with the same size).
4.
In the second column under SIZE, find the number of threads per inch that matches the number of
threads you counted in step 2. (Not required for metric screws).
CAPSCREW HEAD MARKINGS
Manufacturer's marks may vary.
Metric screws are of three grades: 8.8,
These are all SAE Grade 5 (3-line)
10.9, and 12.9. Grades & Manufacturer's
marks appear on the screw head
8.8
10.9
12.9
METRIC
STANDARD
5.
To find the grade screw you are installing, match the markings on the head to the correct picture of
CAPSCREW HEAD MARKINGS in the illustration preceding the torque table.
6.
Look down the column under the picture you found in step 5. until you find the torque limit (in lb-ft or
N.m) for the diameter and threads per inch of the screw.

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