Jammed Asahi K1000

Cholentpot · Jun 27, 2017

My K1000 jammed. The Fix Old Cameras trick did not work. All the levers inside don't move anymore. Here's the photos of what it looks like.

Any clue? I have another K1000 as a backup so while I would spend time trying to fix this I would not send out for a CLA

E. von Hoegh · Jun 27, 2017

Skeet target? I collect K1000s from yardsales, often from the free pile. I have two at the moment, it's almost always a lubrication issue. Sometimes a loose screw issue; 30+ years of vibration can do funny things. Nice lenses, but I never could warm up to the K1000.

OptiKen · Jun 27, 2017

Gremlins.
Be careful, they have a tendency to multiply

Cholentpot · Jun 27, 2017

E. von Hoegh said:
Skeet target? I collect K1000s from yardsales, often from the free pile. I have two at the moment, it's almost always a lubrication issue. Sometimes a loose screw issue; 30+ years of vibration can do funny things. Nice lenses, but I never could warm up to the K1000.

It'll look nice on my wall I guess...

Theo Sulphate · Jun 27, 2017

Ok, I see a few things wrong that you may be able to correct. I'll try to edit your photo to illustrate. Otherwise, I will have to experiment this evening with my "repair-demo" K1000.

Stay tuned...

Cholentpot · Jun 27, 2017

Theo Sulphate said:
Ok, I see a few things wrong that you may be able to correct. I'll try to edit your photo to illustrate. Otherwise, I will have to experiment this evening with my "repair-demo" K1000.

Stay tuned...

Thanks o master of the Film Hammer.

Theo Sulphate · Jun 27, 2017

Here is what I see wrong:

The arm is way to the right, but it seems like the post on the gear is preventing it from returning to its normal position.

Normally, when the shutter trips, as the second curtain closes the gear (and post) rapidly turn clockwise. At the end of that rotation, the post hits the arm which causes the mirror lever to fall.

However, since your shutter is cocked (based on previous discussion), it puzzles me why the post is still under the arm and not resting on top of it.

Gently, without using your fingers or any breakable or sharp objects, can you get the gear or arm to move at all?

I will experiment when I get home tonight, but I suspect the arm may have to be removed so that it can be repositioned.

Cholentpot · Jun 27, 2017

Theo Sulphate said:
Here is what I see wrong:

View attachment 181966

The arm is way to the right, but it seems like the post on the gear is preventing it from returning to its normal position.

Normally, when the shutter trips, as the second curtain closes the gear (and post) rapidly turn clockwise. At the end of that rotation, the post hits the arm which causes the mirror lever to fall.

However, since your shutter is cocked (based on previous discussion), it puzzles me why the post is still under the arm and not resting on top of it.

Gently, without using your fingers or any breakable or sharp objects, can you get the gear or arm to move at all?

I will experiment when I get home tonight, but I suspect the arm may have to be removed so that it can be repositioned.

Nothing wants to move. I await further instructions. I'm unsure about removing the arm but no biggie, I can always try. I'm a bit unclear about that spring and where it should be though.

paul ron · Jun 27, 2017

get the service manual here.....

Dead Link Removed

http://www.pentax-manuals.com/manuals/service/servicemanuals.htm

Theo Sulphate · Jun 27, 2017

Cholentpot said:
Nothing wants to move...

The end of the spring, circled in red, appears to be resting on top of its post. The end of the spring should be moved "up" (that is, in the direction of the top of the photo) so that it rests against the post.

Press and hold the shutter release and then, if you can, carefully raise the mirror (don't touch the surface), keeping it raised all the way (the mirror reaching the top of its travel is what really trips the shutter). If successful, this may get the mechanism back to its normal state.

John Koehrer · Jun 27, 2017

The cameras released. The lever in the slot will be at the top of the slot and held in position by the flattish section of the lever to the right side.

If Theo is right and the spring has jumped the post, move the spring and move the lever from the bottom of the slot to the top
then release it. That may allow it to free everything up. Or maybe not.

Theo Sulphate · Jun 27, 2017

John Koehrer said:
The cameras released. The lever in the slot will be at the top of the slot and held in position by the flattish section of the lever to the right side. ..

He tried that initially (in a thread prior to this). Now none of the levers move but the shutter is cocked.

Therefore I'm hoping my lift-the-mirror suggestion above works.

Cholentpot · Jun 27, 2017

Theo Sulphate said:
He tried that initially (in a thread prior to this). Now none of the levers move but the shutter is cocked.

Therefore I'm hoping my lift-the-mirror suggestion above works.

Nope on the lift mirror.

Theo Sulphate · Jun 27, 2017

Cholentpot said:
Nope on the lift mirror.

Rats. Ok, the only other thing I can think of is to view the service manual (see Ron Paul's post #9) where the mechanism is described early on (pages 8-10). Once you remove the E-clip, the mirror-catch arm can then be removed and positioned correctly.

One thing that bothers me is the position of that mirror return gear. When the arm has been removed, be sure to test whether the shutter is indeed fully cocked.

paul ron · Jun 28, 2017

i havent worked on these cameras in over 30 years but i do remember the most common repairs we did on these pentaxes was shutter ribbons failed. some symptoms are quirky film advancing n stuck mirror, then as a result of the user forcing the camera when it jammed is what you are seeing as colateral damage.

have you looked at the cloth shutter itself?... check the ribbons?

Cholentpot · Jun 28, 2017

paul ron said:
i havent worked on these cameras in over 30 years but i do remember the most common repairs we did on these pentaxes was shutter ribbons failed. some symptoms are quirky film advancing n stuck mirror, then as a result of the user forcing the camera when it jammed is what you are seeing as colateral damage.

have you looked at the cloth shutter itself?... check the ribbons?

Tell me what I should be looking for/at?

paul ron · Jun 28, 2017

get the service manual

Dead Link Removed

Jammed Asahi K1000

Privacy & Transparency

Privacy & Transparency