TORQUE LIMITS - TM-9-2320-361-24-21105

TM 9-2320-361-24-2

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SUPPORTING INFORMATION

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS (MULTIFUEL)

TORQUE LIMITS

This Work Package (WP) provides general torque limits for screws used on the M44A2 series vehicle.

Special torque limits are indicated in the maintenance procedures for applicable components. The

general torque limits in this WP 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 time.

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 LIMITS

Measure the diameter of the screw you are installing.

Count the number of threads per inch.

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).

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

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.

Look down the column under the picture you found in step 5, until you find the torque limit

(in., lb-ft or Nm) for the diameter and threads per inch of the screw.

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