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Heat is hard on track.


It's a fact of life: The hotter it gets, the harder it is on your Bradley and MLRS MLRS Multiple Launch Rocket System (US DoD)
MLRS Multiple Launcher Rocket System
MLRS Marine Corps Long-Range Study (US DoD) 
 T157I track.

When operating on improved road surfaces at increased convoy speeds (faster than 25 mph) and when temperatures are at or above 100[degrees]F, track bushings tend to soften. That allows the bushing pin to move around and extend out of the bushing bore. Protruding pro·trude  
v. pro·trud·ed, pro·trud·ing, pro·trudes

v.tr.
To push or thrust outward.

v.intr.
To jut out; project. See Synonyms at bulge.
 pins make your vehicle NMC NMC Nursing & Midwifery Council (UK)
NMC NSSDC Master Catalog (NASA)
NMC Northwestern Michigan College (Traverse City, Michigan)
NMC National Meteorological Center
.

A new section entitled "Operating Vehicle in Extreme Heat" will soon be added to the operator's TMs. Until the TMs are updated, Maintenance Advisory Message 05-003 provides the following guidance when operating on paved roads at convoy speeds faster than 25 mph or when temperatures have reached or exceeded 100[degrees]F:

Crewmen should check for track pin movement and inspect track tension hourly, or as soon as the tactical situation permits.

If you find protruding pins, you can--as a BDAR BDAR Battle Damage Assessment and Repair
BDAR Battlefield Damage Assessment & Repair
 fix only--hammer the pins back into place and continue operating until the vehicle reaches a safe location for repair. However, you must mark the bad bushing so that it is easily identified when repairs are possible. The best way to do this is by scribing a mark on the metal surface of the affected shoe with a screwdriver screwdriver,
n See instrument, screwdriver.
.

DRIVING AT THIS SPEED ...

... ON A PAVED ROAD ...

[ILLUSTRATION OMITTED]

... IN THESE TEMPERATURES ...

... IS KILLING OUR TRUCK!

[ILLUSTRATION OMITTED]
COPYRIGHT 2005 PS Magazine
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2005, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Article Details
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Title Annotation:M2/M3-Series Bradley, MLRS Carrier ...
Publication:PS, the Preventive Maintenance Monthly
Article Type:Brief Article
Geographic Code:1USA
Date:Jun 1, 2005
Words:228
Previous Article:Keep tank breathing fresh air.
Next Article:Keep the cool air flowing.
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