Tricks/Tools for compression fittings

Discussion in 'DIRECTV Installation/MDU Discussion' started by CJTE, Dec 15, 2009.

  1. ndole

    ndole Problem Solver

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    Practice Practice Practice..
    I've got calluses on top of calluses. In the winter time, wearing jersey gloves eases the strain on your fingers. Otherwise, if I've got a tough cable, I'll usually press the nut-end against a piece of fabric like my shirt. That gives you more leverage on the cable, and gives the conductor somewhere to go besides through your finger.
     
  2. CJTE

    CJTE Hall Of Fame

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    I have decent tools... Its a matter of the fittings not fitting on the cable... Almost wonder if I should get quad fittings or if they would be too big and just slide off...
     
  3. RobertE

    RobertE Active Member

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    This may sound tedious, but can you post pics of each step as you prep the cable up to the point when you are ready to compress the fitting? Maybe we can see something subtle that you are missing.
     
  4. CJTE

    CJTE Hall Of Fame

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    I will absolutely do that. I actually starting taking pictures of the coax post-stripped yesterday but 1) I broke my cameras viewfinder yesterday morning and 2) I was drunk and tired so I went to bed instead.

    Expect pictures later today.
     
  5. RobertE

    RobertE Active Member

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    :lol::lol::lol:

    Maybe try a few connectors before the beers?

    :goodjob:
     
  6. DF Wavelength

    DF Wavelength Mentor

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    Apr 29, 2009
    If you're using quad shielded cable, its worth buying the quad fittings.

    Some of the photos that were posted in this thread showed how the braid needs to be peeled back around the jacket. Its important that the inner ring of the fitting slides in between the braid & the foil around the dielectric. If the foil or the braid gets caught, they will just bunch up keep the fitting from sliding on.

    On Plenum-rated/Teflon cable, sometimes it helps to warm it up a little with a cigarette lighter. Just do it for a few seconds, and keep the flame moving so it doesn't sit in one spot. You don't want to burn or melt anything, but the fittings usually slip right on.
     
  7. Herdfan

    Herdfan Well-Known Member

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    Teays...
    Get better cable. I could do SnS fittings on Belden cable all day long. A couple on cheap cable and I'm done.
     
  8. CJTE

    CJTE Hall Of Fame

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    Well, I've still got 500ft of cable left (in the box). Ive got 8 more fittings to do (damn drywallers pierced one of my cables), then I'm done.

    Seeing as that I've already paid for what Ive got I'm going to use it til I run out but I suppose from now on I'll be buying perfectvision. I just got laid off so now I *really* can't afford quality cable haha.
     
  9. rudeney

    rudeney Hall Of Fame

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    Like I said, I'm using the Ideal compression tool I bought at Home Depot, and a jar of Ideal fittings I bought there, too. I usually buy my stuff online or from a local pro shop, but the day I needed this, it was just faster to go to Home Depot. I have no clue where I got the cable, probably my local pro shop. It is very easy to push the cable into the connector and it stops at just the right spot. That's the way it should be. If not, then it's likely a mismatch between the cable and the fitting.

    The only problems I've had is when the stripper doesn't work right and either mashes the insulator or leaves some shielding. This is usually due to a piece of shielding getting caught in the blades. Oh, and after about 100 fittings, the compression tool broke (one of the studs that the return spring is slipped to). I fixed it with a bolt.
     
  10. CJTE

    CJTE Hall Of Fame

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    Found what I was looking for...

    Started looking around at the mm socket set in the garage. Didnt have one small enough to put into F connector (I imagine that's what the flaring tool is for?), so instead I grabbed an 11mm, stuck it on an extension, and pushed the connector on. Worked well, until it hit the dielectric. So I went back to the garage and grabbed an 11mm deep dish. This also worked well... Up until the fitting when 3/4 of the way into the deep dish and I was unable to remove the socket from the fitting. Whoops.

    So, I crudely jammed a screwdriver against the inside of the fitting while I pulled the 11mm deep dish out. I did multiple stabs to try and do as much damage to the dielectric as possible but unfortunately I was unsuccessful.

    Ive got braid sticking out below the compressed plastic of the fittings. Any reason I cant cut the *EXCESS* braiding off?
     
  11. CJTE

    CJTE Hall Of Fame

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    I generally do my connectors and terminations sober. It helps make sure I do them correctly and I don't have to waste time coming back. I don't mind having a few doing RJ45 because I've literally done them in my sleep so... NBD!

    I finally found my "new" camera. If I'dve known I would be keeping it and not be reimbursed for it I think I wouldve gone with a bit better model, BUT, none-the-less... I'm now obsessed on figuring out how to disable the date/time stamp so I refuse to take any pictures with it.
     
  12. CJTE

    CJTE Hall Of Fame

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    [​IMG]
    In red is the cable I tried just shoving a connector on and compressing... No real thought process involved, it'd be cool if it worked though. Instead I wasted a connector and peeled some of the foil. So, here we are on a second try with a fresh cut!
    In blue is the excess braid I was referring to earlier.

    [​IMG]
    Stripping the outer jacket.

    [​IMG]
    Post-strip.

    [​IMG]
    Pull the braid back around the outer jacket, leaving the foil, and the inner plastic jacket around the dielectric, as well as the dielectric itself.

    [​IMG]
    Stripping to the dielectric

    [​IMG][​IMG]
    Photos don't do it any justice, but unlike every other fitting I've done so far, I didn't strive to make sure the plastic tubing around the dielectric was flush with the hole on the fitting. Its probably recessed 2-3mm. The fitting is snug though which is my biggest concern.


    EDITS:
    Word correction, link replacement from incorrect pictures.
     
  13. ffemtreed

    ffemtreed Icon

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    strip right at the end of the cable. Not back a like you are doing.
     
  14. RobertE

    RobertE Active Member

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    Your pictures speak volumes. Your doing all wrong.

    With the way you are doing it, you are stripping off far too much of the jacket. The connector then has nothing to grip onto when you compress it, so it pulls right off.

    You want to strip just the very end of the cable. A properly prepped cable should only have 1/4 inch of conductor exposed, then another 1/4 inch of dielectric exposed. No more, no less. Your cable when properly prepped needs to look like the first pic in post #5.
     
  15. CJTE

    CJTE Hall Of Fame

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    So i'm stripping too much. Thats fine. My compression fittings are definetly gripping the outer jacket though. Them f'ers won't budge (once I spend 10 minutes pushing them down hahaha).

    I'm getting plagued with SFSS on tuner 2 throughout the DVRs in my house. I swap cabled and still Tuner 2. Ughh.
     
  16. ffemtreed

    ffemtreed Icon

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    The reason you are having so much trouble pushing connectors on is because of all that extra braid material. It is getting bunched up and caught in the connector.
     
  17. Beerstalker

    Beerstalker Hall Of Fame

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    Part of your problem is that stripper tool. I had that same one and it sucked (I was using Perfect Vision RG6Quad and Perfect Vision Quad connectors and was having trouble getting the connectors on). I went out and bought a stripper tool like in post #6 and it works 1000x better, now it's easy as can be to put the connectors on. The hardest part is peeling back the 2 sets of braid on the quad shield (I always manage to stick the braid under my fingernails and it stings pretty good).
     
  18. CJTE

    CJTE Hall Of Fame

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    Ive got a straightened paperclip on my key ring...
    That shtuff hurts mayann.
     
  19. CJTE

    CJTE Hall Of Fame

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    So is it worth running around and cutting off all the fittings I have? I have very little slack in the lines (expected to mount the gangboxes a bit higher off the ground) so I'd like to avoid that if at all possible.
     
  20. Johnnie5000

    Johnnie5000 Godfather

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    I don't know why no one else has mentioned this handy dandy tool yet.[​IMG]It's the absolutely most used tool in my pouch and unlike other cats on here, I do this for a living.
    If the connectors aren't going on smoothly, they're getting hung on the pvc jacket, as the inner metal tube (the one that goes between the braid/foil and pvc) on the connector is not going inside the pvc. Use the flaring tool to flare out the pvc so the connector goes on quick and easy.
    They're $9 at Sadoun and $12 at Tech Tool Supply.

    I've never had a connector not go on because of too much braid... ever. Twist it back over the outside of the cable (away from the cut end) and it will not cause an issue.
     

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