Help can't get a grub screw out of a 4525 520

Phil777 · 05-09-2012, 06:19 AM

I have a 4525 520 ultimate,

Today i noticed one of the grub screws has some silver looking steel lodged inside one of the grub screws, meaning i can't get my hex key in there,

Its the most important grub screw out of the 3 since the other 2 are on the smooth part of the shaft.

Ive tried drilling the silver part out but its extremely hard

Heating the outside and cooling the silver part (couldn't heat around it properly though.

Its been through 15 flights, and it hasn't come out yet.

Anyone got any advice?
Im worried if it comes out in flight it won't get flung out instead fall into the windings.

jamin_00 · 06-02-2012, 05:15 AM

Can you take a pic to show it, got a macro function too?

Have you tried a star drive or something similar?

Phil777 · 06-08-2012, 10:30 PM

Its the object is blocking any screw drivers from going in,

I have superglue'd it for now, no issues in over 40 flights,

I just hope i dont bend the shaft

or else i'll have to buy the outer piece with the magnets on it too

05-09-2012, 06:19 AM	#1
Phil777 Registered Users Join Date: Feb 2012 Location: New Zealand	Help can't get a grub screw out of a 4525 520 I have a 4525 520 ultimate, Today i noticed one of the grub screws has some silver looking steel lodged inside one of the grub screws, meaning i can't get my hex key in there, Its the most important grub screw out of the 3 since the other 2 are on the smooth part of the shaft. Ive tried drilling the silver part out but its extremely hard Heating the outside and cooling the silver part (couldn't heat around it properly though. Its been through 15 flights, and it hasn't come out yet. Anyone got any advice? Im worried if it comes out in flight it won't get flung out instead fall into the windings.

06-02-2012, 05:15 AM	#2
jamin_00 Registered Users My HF Map location Join Date: Aug 2008 Location: Essex, UK	Can you take a pic to show it, got a macro function too? Have you tried a star drive or something similar? __________________ Sponsored by Optipower To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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06-08-2012, 10:30 PM	#3
Phil777 Registered Users Thread Starter Join Date: Feb 2012 Location: New Zealand	Its the object is blocking any screw drivers from going in, I have superglue'd it for now, no issues in over 40 flights, I just hope i dont bend the shaft or else i'll have to buy the outer piece with the magnets on it too