HILTI SF 121-A maintenance and cleaning

maintenance, restoration and cleaning

[@vitorcrespo5654]

Very good video. explains very well the complicated gear cleaning and assembly. Thank you!

[@nadirhussein3871]

Nice work .. for great drill .. I have the same model I also cleaned and re greasing ... it is comming like new .. I also converted the 12v battery into 14.4v Li -ion (4 cells) and now I have very strong drill running smoothly .

[@mypio2857]

thanks, i kept 12v with conversiona li-ion

[@bisbi7523]

good!!!!!!!!!!!!

[@edwinoilano7992]

Sir ihave a problem about my drill same drill the problem battery the battery not working I buy battery where is your location, thank you sir plz reply sir

[@jatindersingh5394]

which spray you used for cleaning ?

[@alejandroantoniotavarezpeg4428]

Hello again, help me to know which is the positive terminal of the two plates where the battery fits. Thank you, I will use it with a source because I have no battery.

[@mypio2857]

Hello, the positive is on the left side of the drill

[@alejandroantoniotavarezpeg4428]

Greetings friend I need to know which of the two is positive I bought a drill of those without battery and I want to test it with a power source. Thank you.

[@gatlinidris3608]

Pro tip : watch series on flixzone. Me and my gf have been using them for watching lots of of movies during the lockdown.

[@jamiematthias2620]

@Gatlin Idris Yea, I've been using flixzone for since december myself :)

[@crewriver7956]

@Gatlin Idris definitely, I've been using flixzone for since november myself =)

[@عليالرسام-ي7ط]

Hello my friend, how can I convert this cordless drill from A**** to lithium, is it successful if I convert it to lithium?

[@raoufchikhi8950]

How to change a drinker

[@عليالرسام-ي7ط]

My friend, I hope I hope the response Is it successful?

[@ENDRINAJEBACICA21]

no no you have to open gear box and put new grease in it you are doing it wrong al moisture is going to motor now hell no

[@mypio2857]

ok thanks for the advice

[@woodenheart3494]

I should do some maintenance.. can you tell me what went wrong? so that I don't risk ruining my drill