Jump to content



Photo

Replacing top post on G-50


  • Please log in to reply
9 replies to this topic

#1 Bryan Fowler

Bryan Fowler

    Advanced Member

  • Sustaining Members
  • 370 posts
  • Chattanooga, TN

Posted 10 April 2008 - 05:38 PM

I got a replacement post kit package thingy from Tiffen. But no instructions on how to make the swap. Which leads me to reason that if I, cannot reverse engineer the solution, I should re-think my career as a reverse engineer.

But I digress...

Can anyone help?

I'm off to town, be back later.




And by post, I mean what the gimbal fits on.. you know.. the boy bits of the gimbal/arm marriage
  • 0

#2 Richard James Lewis

Richard James Lewis

    Advanced Member

  • Members
  • PipPipPip
  • 397 posts
  • London, UK

Posted 10 April 2008 - 06:54 PM

Bryan.

If you are replacing the whole post (the steel pin) and not just the top cap then the following might help...

If you have the post friction clamp on the arm...
Remove the locking screw, and you will reveal a hole to the side of the clamp.
Pop out the two little grub screws.
Slide the post up and out?it should now be free...
Remove the friction block, and the inner post tube thingy (it should all fall apart)

You now have to knock out the old bearings so that you can replace them with the new bushings.

If you use the old arm post cap, you will find it?s the exact right size to neatly tap the bearings out with?.

Insert the new bushings. Put the new inner post tube thingy inside the friction clamp block. Slide in the steel pin, and basically re assemble.

This is from memory, and it was a while since I did mine, so if I missed anything, then forgive me. It?s not that hard to guess the rest?

Sorted.

Rick.



I got a replacement post kit package thingy from Tiffen. But no instructions on how to make the swap. Which leads me to reason that if I, cannot reverse engineer the solution, I should re-think my career as a reverse engineer.

But I digress...

Can anyone help?

I'm off to town, be back later.




And by post, I mean what the gimbal fits on.. you know.. the boy bits of the gimbal/arm marriage


  • 0

#3 Bryan Fowler

Bryan Fowler

    Advanced Member

  • Sustaining Members
  • 370 posts
  • Chattanooga, TN

Posted 10 April 2008 - 07:41 PM

Richard,

Hey thanks,
That helped a lot. And so speedy! =)

I was all on track until I was putting the washer bearings back in.
They were to large to fit. And the washers were as well.

here's a photo...or 3

Attached File  IMG_5548.jpg   51.11KB   89 downloads

Attached File  IMG_5549.jpg   40.91KB   62 downloads

And the package the washers were in.
Attached File  IMG_5550.jpg   49.12KB   66 downloads

Any thoughts?

Attached Files


  • 0

#4 Bryan Fowler

Bryan Fowler

    Advanced Member

  • Sustaining Members
  • 370 posts
  • Chattanooga, TN

Posted 16 April 2008 - 10:19 PM

Anyone have any insight on this?

I'd like to get my arm back together.
Tiffen seems to be all at NAB... i guess.


*shrugs* =)
  • 0

#5 Ed Moore

Ed Moore

    Advanced Member

  • Sustaining Members
  • 185 posts
  • Midlands, UK

Posted 17 April 2008 - 02:40 AM

Hi Bryan,

Sadly my washer fu is weak. But, looking at those pics with trepidation, is this something I should expect to have to perform on my G-50 at some point in the future? Natural wear and tear? Or did you try and use the arm to jack up your car or something :)

Ed "curious" Moore
  • 0

#6 Richard James Lewis

Richard James Lewis

    Advanced Member

  • Members
  • PipPipPip
  • 397 posts
  • London, UK

Posted 17 April 2008 - 05:50 AM

Sorry Bryan, been working, then forgot...

I took my arm apart for you....

The pictures you are showing will never work, as I don't believe they should. The new bushings do not allow for bearing instillation where you are trying to put them. It should be a neat fit with the inner post tube and the plastic bushings.
Just put the new bearing under the arm cap between the base and the post. I don?t know if that makes sense....
No need for them anywhere else...

I?m slightly confused as to your train of thought?

Ed, Tiffen had an issue with a post in an early G-50 so they decided to upgrade it for a thicker one to prevent anything happening in the future. You should have this upgrade already, if not ring Tiffen Europe, and they will sort you out. It?s only the older arms that would have needed this upgrade.
It?s nothing really to worry about if you don?t have, if you are using the arm with a Tiffen rig you would be fine...
Robin, correct me if I?m wrong?

Hope this helps.

Rick.
  • 0

#7 Ed Moore

Ed Moore

    Advanced Member

  • Sustaining Members
  • 185 posts
  • Midlands, UK

Posted 17 April 2008 - 06:40 AM

Aha, thanks for the info. Mine's only about six months old so I'm sure it's fine.
  • 0

#8 Bryan Fowler

Bryan Fowler

    Advanced Member

  • Sustaining Members
  • 370 posts
  • Chattanooga, TN

Posted 17 April 2008 - 10:06 PM

Richard,

Hey thanks for the help.

I think got things worked out. I had the bushings in backwords, and when I was moving them, I chipped off one of the edges... not all of it .. just a little. I installed it anyway.

I'm back.

Ed, no fear. I had a tiny post, and needed a bigger one. That was the main reason for the change. I didn't even know about a recall.
  • 0

#9 Philip J. Martinez SOC

Philip J. Martinez SOC

    Advanced Member

  • Sustaining Members
  • 256 posts
  • New York, NY

Posted 18 April 2008 - 07:42 AM

Did you see what Tiffen if offering with the Cliper 312/324

? Features quick release interchangeable arm post.

I hope this will be an easy up grade for all of us who have G-50 arms
  • 0

#10 Jerry Holway

Jerry Holway

    Advanced Member

  • Sustaining Members
  • 737 posts
  • Philadelphia

Posted 20 April 2008 - 12:01 PM

Did you see what Tiffen if offering with the Cliper 312/324

? Features quick release interchangeable arm post.

I hope this will be an easy up grade for all of us who have G-50 arms


Yes, an easy upgrade. It's simply a matter of removing the current bearings for the arm post (push through) and inserting the new kit. No change to the arm. I don't know when the kit will become available; must contact Tiffen direct and ask for the upgrade kit. It will happen faster if there's demand, so ask and ask again.

The new post system is also somewhat stronger and the drag control more precise. There will be only two lengths: minimum, as it is now, and plus 6 inches - nothing longer, and available in .5, .625, and .740 diameters for all flavors of sled gimbals.

Jerry
  • 0




PLC Electronics Solutions

SkyDreams

Betz Tools for Stabilizers

Teradek

Paralinx LLC

Varizoom Follow Focus

Boland Communications

IDX

PLC - Bartech

GPI Pro Systems

rebotnix Technologies

BOXX

Wireless Video Systems

Engineered Cinema Solutions

Omnishot Systems

Media Blackout - Custom Cables and AKS

Ritter Battery