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EFP Arm quesiton


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#1 Michael Nelson

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Posted 04 January 2012 - 02:19 PM

I have a question about an arm I have here. Take a look at the 3 pictures of the arm and you'll see that in the 3rd picture, the pins that hold the arm sections together are able to slide up and down fairly easily. They seem to be only help in place through the tension in the arm. This doesn't seem right at all and I'm wondering if some kinds of caps are missing to hold these pins in place.

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#2 John atkinson

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Posted 04 January 2012 - 03:22 PM

The retainers are missing.

JA
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#3 Stefano Ben

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Posted 04 January 2012 - 03:49 PM

Yes, you have lost them. Looking for the item in the pic.

However, The best thing you can do it's give a call to Robert Luna for have a complete service.

Luna Az-Tech

work 1 (323) 938-5659
mobile 1 (310) 621-4763

e-mail rluna56@earthlink.net

Best, Steve.

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#4 James Davis

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Posted 04 January 2012 - 04:15 PM

These are very similar to cir-clips so if you are really in a pinch and have a sudden impending job you could probably get some spares that would do the job from an automotive store, but in the medium to long term a service and original parts are definitely the sensible option.
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#5 Michael Nelson

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Posted 04 January 2012 - 06:31 PM

I did find these two hex screws and gave them a little tighten and it holds the pins in place and doesn't limit the functionality of the arm. What so these two screws do specifically?

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Edited by Michael Nelson, 04 January 2012 - 06:31 PM.

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#6 Michael Nelson

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Posted 05 January 2012 - 04:32 AM

Thanks for everyone's reply. I will be scheduling an appt with Robert Luna for the end of the week!
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#7 JensSchroeder

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Posted 05 January 2012 - 04:40 AM

These 2 hex screws are exactly the screws which should keep the 2 pins in place. If you loosen the hex screw again and push out the pin, you should find a flat part on the pin, that is actually the part of the pin where the hex screw should fix the pin. That flat part of the pin prevents the pin against slipping through even if the hex screw is not really tighten up. From time to time you should check the 2 screws because they can get loose sometimes. And if you need an arm check-up, I just can support the advice to contact Robert Luna.

Fly safe,

jens
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#8 RobinThwaites

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Posted 05 January 2012 - 05:30 AM

Hi Michael

Tighten the screws as per Jens comment making sure you hit the flat on the pin and then if the holes are deep enough and you could follow it with a second grub screw to lock it in place. Alternatively clean the area and use a little threadlock.

Robin
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#9 Kevin Andrews SOC

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Posted 07 January 2012 - 05:54 PM

The bearings do migrate a lot on those older arms I've found. Watch out for the cable pulley bearings moving too. They are pressure fit and no fun to tap back in.
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