Pick the Right Type and Number of Jacks

Mechanics, aircraft jacks are vital for maintenance on your helicopter. They’ve been around for years and gone through a lot of changes. Some have been put out to pasture while others have been neglected.

Now, that won’t be a problem anymore because we told you on Pages 27-30 of PS 760 (Mar 16), how to maintain your jacked up jacks.

With all the changes, sometimes it’s difficult to determine which jack is used for which aircraft task. No longer. Here’s a list of the maintenance tasks that require jacks and how many to use:

Apache

   NOTE: These are typical tasks which require the aircraft to be placed on jacks. Please ensure you follow TM 1-1520-Longbow/Apache (IETM) for specific requirements, size, placement, warnings, cautions, and notes for all jacks.

  • Jacking aircraft, 3 point, using a tripod jack requires two 5-ton jacks, NSN 1730-00-516-2018, and one 3-ton jack, NSN 1730-00-734-9382. The Fuselage adapter, NSN 1560-01-226-7551, will also be used.
  • Jacking aircraft, 2 point, using a tripod jack requires two 5-ton jacks, NSN 1730-00-516-2018. The Fuselage adapter, NSN 1560-01-226-7551, will also be used.
  • Jacking tail landing gear using a tripod jack requires one 3-ton jack, NSN 1740-00-734-9382.
  • Jacking the main landing gear, 1 point, using an axle jack requires one 5-ton jack, NSN 1740-00-540-2343.                Chinook
  •    Note that Apache is the only helicopter airframe that uses the 5-ton jack, NSN 1730-00-516-2018.
  •  Jacking an entire Chinook requires two 12-ton jacks, NSN 1730-00-912-3998, and two 10-ton jacks, NSN 1730-00-203-4697. As an alternative method, you can use two 12-ton jacks, NSN 1730-00-912-3998, and one 10-ton jack, NSN 1730-01-563-7046.
  •  Replacing the forward right- or left-hand gear assembly requires one 10-ton jack, NSN 1730-01-563-7046. However, the aircraft weight must be below 24, 500 pounds.
  •  Replacing the forward right- or left-hand tire assembly requires one 10-ton jack, NSN 1730-203-4697.
  •  Replacing the aft right- or left- hand gear assemblies requires one 12-ton jack, NSN 1730-00-912-3998.
  •  Replacing the aft right- or left- hand tire assembly requires one 12-ton jack, NSN 1730-00-912-3998.
  • Weighing aircraft using load cells (3 point) with a max gross weight of 24,500 pounds requires two 12-ton jacks, NSN 1730-00-912-3998, and one 10-ton jack, NSN 1730-01-563-7046.
  •  Weighing aircraft using load cells (4 point) with a max gross weight of 33,000 pounds requires two 12-ton jacks, NSN 1730-00-912-3998, and two 10-ton jacks, NSN 1730-00-203-4697.
  •         A/C Model Kiowa Warrior
  • Jacking an entire OH-58A/C requires three 12-ton jacks, NSN 1730-00-912-3998.
  •          D-Model Kiowa Warrior
  •  Jacking an entire OH-58D requires   three 12-ton jacks, NSN 1730-00-912-3998.          Black Hawk Aircraft
  •    NOTE: When a Kiowa is on jacks, use an overhead hoist or cable support to maintain the aircraft. This is done as a safety precaution in the event a strong wind gust blows through the hangar and knocks the Kiowa off the jacks.
  •  Jacking requires three 12-ton jacks, NSN 1730-00-201-4849.
  •  Removal and installation of the right- and left-hand landing gear shock strut requires one 12-ton jack, NSN 1730-00-201-4849.
  • Jacking the right- and left-hand main landing gear wheel and tire assembly requires one 10-ton jack, NSN 1730-00-203-4697.
  • Removal and installation of the tail landing gear shock strut requires one 12-ton jack, NSN 1730-00-201-4849.
  •  Removal and installation of the     tail landing gear wheel and tire assembly requires one 10-ton jack, NSN 1730-00-203-4697.
  •  Weighing the helicopter using load cells (3 point) requires three 12-ton jacks, NSN 1730-00-201-4849.
  •  Changing a flat tire or collapsed strut requires one 12-ton jack, NSN 1730-00-201-4849, or one 10-ton jack, NSN 1730-00-912-4697.
  •  Changing a flat tail tire or collapsed gear strut requires one 12-ton jack, NSN 1730-00-201-4849, and one 10-ton jack, NSN 1730-00-912-4697.
  •             Lakota Aircraft
  •  Jacking an entire UH-72A aircraft takes four jacks. The type of jack is not specified, but two 12-ton tripod jacks, NSN 1730-00-912-3998, and two 10-ton landing gear jacks, NSN 1730-00-203-4697, work well.
  •  Weighing the Lakota requires three jacks. The type of jack is not specified, but one 12-ton tripod jack, NSN 1730-00-912-3998 and two 10-ton landing gear jacks, NSN 1730-00-203-4697 work well.

Watch Out for Bulging Tubes

Howitzers…
Watch Out for Bulging Tubes

Crewmen, it’s bad enough when explosive ordnance disposal (EOD) has to remove a stuck round from your 155mm howitzer. It’s a lot worse if you’re left with a bulging cannon tube!
That’s what could happen to your howitzer if EOD uses the water blast method to remove a stuck round.   The 155mm cannon tubes most at risk are the M7776 and M284 steel and M7776 and M284A2 chrome barrels.

If EOD uses the water blast method to extract a stuck round from your howitzer, inspect the cannon tube with a borescope. A bulge means the tube has to be condemned. If you suspect a bulge but can’t see one, use a pullover gage to measure the area where you suspect damage.
You’ll find the full scoop on inspecting for damage in TM 9-1000-202-14, Evaluation of Cannon Tubes. Appendix T covers the M7776 tube and Appendix U covers the M284 tube. EM 0065, which covers most small arms, has the TM, as does LOGSA’s ETM website:
https://www.logsa.army.mil/etms

Be sure to immediately notify your logistics assistance representative (LAR) or field service representative (FSR) if EOD removes a stuck round from your howitzer.
You are also required to report EOD round removal and any damage on DA Form 2408-4, Weapons Record Data Card, in the remarks column. You can access it at:
https://tulsa.tacom.army.mil/guncard/index.cfm


Keep M3 Tripod Until You Get M205

On Page 43 of PS 760 (Mar 16) we told you the good news that the M205 tripod is replacing the M3 tripod.

It’s good news because the M205 is 32 percent lighter than the M3 and also includes an integral traverse and elevating mechanism.

But some units are jumping the gun and turning in their M3s before they get the M205. Not a good idea! They could be without tripods for a long time until they do get the M205. So keep using your M3s until you get the M205.

But once you get the M205, it’s important you turn in your M3s within 30 days. The Army will continue to use M3s for 3-4 years, so they need your M3s for other units. If any M3s aren’t usable, turn them in for local disposal.

Do not try to order the M205. If will be fielded through total package fielding (TPF).

Questions? Contact Grant Baker at DSN 786-1238, (586) 282-1238, or email:

grant.t.baker.civ@mail.mil


AN/PSQ-20/20A Goggles Blind? Good News!

If your AN/PSQ-20, NSN 5855-01-534-6449, or AN/PSQ-20A, NSN 5855-01-603-0489, night vision goggles aren’t working, there’s good news. You can get them fixed if they qualify.

The fix doesn’t cover ancillary items or components of end item for the goggles and is available only if the goggles fail after a thorough inspection following TM 11-5855-322-10 or TM 11-5855-335-10 or their -23&Ps. Your 94F repairman does that.

To get your goggles fixed, you’ll need a return authorization from the manufacturer. Get it by logging into the warranty repair portal:

https://nvwarranty.gs.exelisinc.com/Login.aspx

New users will need to register by clicking on the HERE button on the left side of the web page. Returning users can log on with their email address, password and DODAAC.

Once you receive a return authorization, fill out a DD Form 1348-1A and ship the goggles to:

Harris

Warranty/Customer Repair Service

7635 Plantation Road

Attention: Marketing Department RA#____

Roanoke, VA 24019

If you have questions, call Harris at (800) 533-5502 or (540) 563-0371.


Test Set Ensures Clear Vision

Many arms rooms already have a device that makes sure night vision devices, weapon sights, and driver’s viewers work properly.

The TS-4348/UV provides a near- infrared uniformly illuminated target that shows if night vision goggles meet the high and low light resolution requirements called for in the TMs.

Unfortunately, most TS-4348/UVs sit because no one knows how to use them. As a result, night vision or sight problems aren’t spotted until Soldiers go to the field.

To learn how to use the TS-4348/UV, see TM 11-5855-299-12&P.

If your unit doesn’t have a TS-4348/UV, order it with NSN 6625-01-323-9584 for around $1,700.

Remember, to be accurate, the TS-4348/UV must be calibrated. Check its TMDE calibration label to see when it’s due. No label? Send it to TMDE for calibration.


3 Tips for Getting PS Back Issues

We get lots of requests for PS back issues. That’s great! But we also get returns from the post office after filling back issue requests. That’s not so great and it’s costly, too.

Here are some tips to help make sure those back issues reach you:

Give us a good mailing address. Most returns are due to incomplete or inaccurate mailing addresses. Including a street with the address is critical. If you have any problems with mail reaching you at your military address, use your home address instead. No worries—our mailing list is never sold or shared.

We’ve gotten “refused” returns, too. Make sure that you tell whoever usually gets the mail at your unit that you’re expecting a package from PS. In your original request, specify the months or years and how many copies of each PS issue you want. Send your back issue request to:

usarmy.redstone.logsa.mbx. psmag@mail.mil

You can also request back issues by clicking on the REQUEST BACK ISSUE button at our website:   Just scroll down to the bottom of the tan-colored column.     To set up a monthly subscription to PS, follow the instructions at:

https://www.logsa.army.mil/psmag/ps-subscription.cfmYou can always download PS in digital form from our website, too.https://www.logsa.army.mil/psmag/pshome.cfm

PS Mobile App

You can also load recent issues of the magazine to your mobile device by using the PS Magazine mobile app. Read about it at:

https://www.logsa.army.mil/psmag/ps-app-flyer.pdf

PS supports the concept that you meet inspection requirements of having three years of PS Magazine on hand if you have them in either print or on your mobile device. Access means accessibility, not print vs mobile format.


NVDs…Use of TB Prohibited

Maintainers, when performing maintenance on the Aviator Night Vision Imaging System (ANVIS), make sure you follow the instructions in aviation safety action message (ASAM) GEN-14-ASAM-01. Do not use TB 1-1500-348-30 (Aug 13).

TB 1-1500-348-30 was accidently published with out-of-date ANVIS maintenance procedures and record- keeping information. The TB also refers to systems and components that are obsolete and no longer available in the field.

Destroy all copies of TB 1-1500-348-30. The Army Publishing Directorate (APD) has removed the TB from its website.

To maintain your ANVIS, follow all the information and procedures contained in GEN-13-ASAM-01 and the applicable maintenance manuals.

For the specific details on both ASAM messages, go to the AMCOM Safety & Maintenance Messages website:

https://asmprd.redstone.army.mil/SplashPage.asp

Once there, login with your CAC. Click the Aviation button, then click Consolidated Listing By Aircraft. Select GEN from the Choose System Type drop down menu and click Continue. You can either scroll down until you find the message or click the ASAM button, to go directly to the list of ASAMs.