Try These Tactical Vehicle Tire Chain Tidbits

    When it’s super cold outside, it’s harder to function.  That’s when a little extra care can make all the difference.  For people, that means bundling up in layers of clothing.  For your vehicles, that could mean using tire chains while traveling in severe snow and icy conditions.

Tire chains improve traction on ice and packed snow, but only if they are installed properly and cleaned regularly.  Chains that are packed with ice lose their effectiveness.

It’s important to use the right size and type of tire chain.  Check your operator’s manual to determine what to use.  In most cases, this information is found in the additional authorization list (AAL).  You can also eyeball TC 21-305-20, Manual for the Wheeled Vehicle Operator, for an explanation on how to install tire chains.

Use this table to order the tire chain assembly needed for your wheeled vehicle:

Wheeled vehicle

Tire size

Chain assembly.

NSN 2540-

FMTV

395/85R20

01-483-2930 or

01-492-2989

HEMTT/HET/PLS

16×20

01-152-7813

HMMWV

37×12.5×16.5 (radial)

01-214-1264

M915A2/A3/A4

11R22.5

01-453-0497

M916A1/A2/A3 and M917A1/A2/E1/E2

315/80R22.5

01-396-1914

M939

11×20

00-933-9022

M939A1/A2

14X20

00-933-9033

Note that for the M35A3, tire size 14.5R20XL, there is no NSN assigned for the tire chain.  You can order those chains on a DD Form 1348-6 using PN  S05SV and CAGE 4N506.

If your vehicle isn’t listed in the first table, use this one to order chains for common tire sizes:

 

Tire size

Chain assembly (pair).

NSN 2540-

Cross chain.

NSN 2540-

Swivel hooks.

NSN

7.50×16

00-528-7360

00-933-6960

4030-00-937-0405

9.00×20

00-933-9024

00-933-6916

2540-00-937-0404

9.50×16.50

00-057-0204

00-933-6916

2540-00-937-0404

10.00×15

01-185-8306

00-933-6916

2540-00-937-0404

10.00×20

00-933-9034

00-933-6916

2540-00-937-0404

10.00×20

(dual tires)

00-933-9034

00-933-6916

2540-00-937-0404

11.00×18

00-933-6933

00-933-6915

2540-00-937-0404

11.00×20

00-933-9022

00-933-6915

2540-00-937-0404

11.00×24

00-933-6935

00-933-6915

2540-00-937-0404

12.00×20

00-933-6922

00-933-6915

2540-00-937-0404

14.00×20

00-933-9033

00-933-6992

2540-00-937-0404

14.00×24

00-933-9023

00-933-6992

2540-00-937-0404

16.00×20

01-152-7813

Not Available

Not Available

For more information on tire chains, contact the DLA Customer Interaction Center at DSN 661-7766/(877) 353-2255 or email:

dlacontactcenter@dla.mil

    Although tire chains are designed to fit snugly, you should still allow some room for creep.  Also, tighten the chains by hand, instead of using tools.  This helps prevent over-tightening that can gouge tires.  If the chains don’t fit properly after you tighten by hand, use tire straps to snug down the tire chains.

Here’s some guidance for selecting straps:

Size

(in inches)

Stretch

(in inches)

NSN 5340-

15

20-30

01-029-9084

21

26-42

01-231-6015

31

36-42

01-029-9085


Operators OK’d to Inspect Fire Extinguishers on Tactical Vehicles

A lot of email traffic has been generated over who is qualified to routinely inspect fire extinguishers on Army vehicles.  The answer is the operator doing PMCS.

The safety engineers at TACOM LCMC’s  safety office weighed in with the following statement:

A Soldier does not have to be certified or licensed to do the PMCS inspections.  They are NOT allowed to repair or refill the bottles if an issue is found and the vehicle is to be considered NMC until the bottle/AFES system is brought back to ready.  If the fire department or other office has a requirement to check all fire extinguishers on base, including those contained in vehicles, by certified personnel, this is above and beyond the vehicle’s requirement.  PMCS should still be done per the intervals called out in the TM.

    So tell all your battle buddies that operators should inspect their vehicle’s AFES.