You can go to logsa.army.mil and get an account to download TMs.
IF these units are under warranty, it's easy- you call the phone number on a sticker or in the TM or contact a Field Support Rep and they send someone or give you instructions to send it in. (of course depending on the contract, ya'll might have to pay shipping...)
IF they are not under warranty- you need to follow the levels of maintenance in the TM or the Army could charge YOU for any damages. You are not authorized (by MTOE probably) to do anything more than the 10-level maintenance. Next shop up from you can do the 20-level, because they have the tools/experience etc....
You need to talk with someone knowledgeable, so you can get the info/documentation necessary to talk to your PL/BMO- you should NOT be going that far outside your lane without someone assisting and mentoring.
No "budget cuts" excuse will hold up when the Commander has to blame someone for toasting an expensive piece of equipment. !
YES, as budget cuts force the army to stop relying on contracted support we will have to start doing maintenance and repairs the "old school" way- with Soldiers digging into manuals and working on stuff we haven't since 2002..
-Take my advice for what you will, contact me via PM if you need. I started the Army as a PFC working in the BN electronics maintenance shop and had experience working with "3rd shop". Anyone you ask for help should know what that means or you need to find someone else. (we had 31P (now 25P) and 35E (now 94E) in our shop...)
CW2 D, 255N
Be Proud of what you do- and do it Well! ~me