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Get the torque right.

[ILLUSTRATION OMITTED]

If the hardware for the handle and firing mechanism on the M224 and M224A1 mortars isn't torqued correctly, the mortars may not fire.

Here's the correct torque:

* M224: Tighten the self-locking screw and nuts to 10 + 2 lb-ft (13.6 + 2.7 N x m).

[ILLUSTRATION OMITTED]

[ILLUSTRATION OMITTED]

* M224A1: Torque the two new self-locking nuts to 10 + 2 lb-ft (13.6 + 2.7 N x m). Torque the shoulder screw into the loop clamp to 12.5 + 2 lb-ft (17.0 + 2.7 N*m).

Make a note until this info is added to TM 9-1010-223-23&P and TM 9-1010-233-23&P.

And check out the complete scoop in TACOM maintenance information message 14-022: https://tulsa.tacom.army.mil/Maintenance/message.cfm?id=MI14-022.html

* Torque references are industry standard.

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Title Annotation:M224, M224A1 Mortar ...
Publication:PS, the Preventive Maintenance Monthly
Date:Aug 1, 2014
Words:132
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