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06-10-2020, 11:35 AM - 2 Likes   #1
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How to exchange battery-hook on Pentax K-30/K-50/K-70/K-500 and K-S2

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The battery-hook of the K-30 and all other Pentax bodies using the same hook seems to break sometimes.
Never happened to me but I had to repair it several times.

If the broken part is still there, you can try to find the correct super-glue, I have seen it once done and it held.
But remember, wrong glue and it won't work.

The part is available here:
Pentax 77420-A0017 Battery Hook | K30 K-50 K-r Digital | USCamera PartsUSCamera
but also from Hungaria 3D-printed:
https://www.ebay.com/sch/imrehe/m.html?_nkw=&_armrs=1&_ipg=&_from=


Just take the bottom cover of.
If uneasy, follow steps as shown in my tutorial:
Manual solenoid replacement Pentax K30 / Discharge flash-condenser / Solenoid choice - PentaxForums.com

You have enough access if you understand how the hook is installed:


You can see, there is a small JIS-screw (JIS-00 or 000 Screwdrivers! Both are the best, PH000 will work as well) which holds the hook on this golden colored metall spring. Underneath this screw is this round nose which fits into the round hole of this spring.

So you carefully unscrew this JIS-screw (best magnetise the tip of your screwdriver so it won't fall down):


Then you bend the metal spring backwards and thus you can take the (broken) hook out.

Here an old photo showing the new and the damaged hook:


It was from the Pentax K-r which is the same hook.

Partnumber is R77420A17 or R77420 A0017 (depending where you order it)


Install the replacement hook, tighten the screw, bottom-cover back on, that was it!


Last edited by photogem; 05-28-2021 at 12:38 AM.
06-11-2020, 05:07 AM   #2
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I had the battery hook in my K-59 replaced under warranty a few years ago. It can still use AA adapters and is still wr as far as I know. There must be a different way of doing it correctly.
06-11-2020, 06:08 AM - 1 Like   #3
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You misunderstood what I wrote to I edited the text by deleting this part
and write it here new:


Because the original hook seems unavailable one can use the one from the K20D/K10D (the same)!
One has to alter a bit the bottom part and as well slightly the hook itself.
But then it fits very well but one loses a little bit WR there and one cannot use the AA-Adapter anymore. The AA-Adapter is that bit
larger and thighter.

The battery-hook for the K7/K5 does not fit.

Here two photos of the K10D hook in a K30:
Attached Images
   

Last edited by photogem; 05-28-2021 at 12:40 AM. Reason: photos attached
12-13-2020, 03:04 PM   #4
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Thank you very much for this detailed instruction.
I am having this issue with a K-500.
I'll see if I can order a new battery hook here in Europe.
Maybe ordering it in the US may be complicated due to tax/customs issues.

12-13-2020, 03:26 PM   #5
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Good luck.
Otherwise: I know of some people who found the correct superglue and it worked.
But one needs the broken off part of course.
12-16-2020, 08:22 AM   #6
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Checked the parts places to see what they actually stock. Mostly discontinued.
12-17-2020, 01:26 AM   #7
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This battery-hook is not discontinued because it is still used in the K70.

05-15-2021, 01:40 AM   #8
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Photos added to show how K10D and K20D hooks can be fitted into K30/50/500/K-S2/K-70
06-29-2021, 04:58 AM   #9
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An ebayseller from Hungaria named imrehe sells 3D printed battery-hooks:
Pentax Battery Lock for K-R, K-30, K-50, K-S2, K-70 | eBay
imrehe on eBay

The material is ABS. I got 2 and built one of them in.
Works well and the price is cheap.
07-27-2021, 11:20 AM - 1 Like   #10
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QuoteOriginally posted by photogem Quote
An ebayseller from Hungaria named imrehe sells 3D printed battery-hooks:
Pentax Battery Lock for K-R, K-30, K-50, K-S2, K-70 | eBay
imrehe on eBay

The material is ABS. I got 2 and built one of them in.
Works well and the price is cheap.
Hello photogem!
Already here in Pentaxforum can be find.
Thank you for all written by you.
12-26-2021, 11:48 PM   #11
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Having used by now several of those "3D printed hooks" my impression hitherto is that they are actually better than the original!
The original hook is made of some hard plastic.

My Pentax 360FGZ flash has now the typical damage to those plastic hooks for fixing the door when one closes is.
The plastic used there and on the 540FGZMKI is hard and breaks off when stressed too often. I think it is the same with this hook.

Not so with the K5 or K20D/K10D hooks nor the different hook of the K-S1! Those are much better made.

If not actually offered on ebay, contact member imrehe directly.
10-25-2022, 10:40 AM   #12
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Just chiming in to say i got two from imrehe and they’re great, and he was very friendly and helpful. He says he isn’t planning to make any more so get em while you can!
02-20-2023, 02:08 AM   #13
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In Post #9 I have a link which doesn't work anymore.
Either contact member @imreh directly here:
imrehe - View Profile - PentaxForums.com

or over ebay here:
imrehe on eBay

All batterydoors I have from him work perfectly!
03-25-2023, 12:43 PM   #14
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I was able to 3D-Print the holder and exchange the broken one. The exchange was rather fiddly though. Thank you very much.
01-07-2024, 05:56 AM   #15
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Member @imreh doesn't seem to be active anymore, he was a good supplier for 3-D printed hooks.
So the only other option in USA seems to be this one:
Battery Catch for Pentax k30, k50, k70 and some other k series | eBay
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