TM-5-4210-249-13-P-4

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 4 OF 4

FEBRUARY 2009

TM-5-4210-249-13-P-4 - Page 286 of 1012

TM 5-4210-249-13&P-4

0609-2

DRAFT

0609

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2.

Measure out one inch with a ruler and 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 per inch you counted in Step (2). (Not required for metric screws).

5.

To find the grade screw you are installing, match the markings on the head with the correct picture of

CAPSCREW HEAD MARKINGS on the torque table.

6.

Look down the column under the picture you found in Step (5) until you find the torque limit (lb-ft or N•m)

for the diameter and threads per inch of the screw you are installing.

7.

Use wet torque values.

HL0565

HL0566