Question about Pentax ME Super 35mm SLR Camera

2 Answers

I have the mirror box lever problem in a spotmatic

The winding mechanism would not work because the shutter does not fire.
You explained how to solve this issue with the mirror box lever.
Can you please explain me how to find this part, after removing the bottom?
What are its characteristics (how to identify it?)
Thanks a lot
David

Posted by on

  • alasca846 Jan 30, 2009

    Hi,

    Thanks a lot for your reply.

    I may try fixing it myself or I will give it to a professional.

    Thanks



×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 58 Answers

Ok, the problem may well be the mirror charge latch. This is very commonly the cause of failure to wind or fire. The catch will be out of sync with the charging lever etc and so the mirror springs will not stay tensioned.

If it is, the cammera will be stuck with the shutter charged (Cocked) but will not fire because the mirror has not been properly primed. (The shutter is actually fired by the mirror. The shutter button actually releases the mirror.)

The locking arm keeps the main mirror spring tensioned until the closing shutter blind has fully closed. The blind roller engages with a gear which releases the

Remove the bottom cover. There is a long lever shiny arm engaging a crank-pin on winder gear extending to a point just below camera-right of the lens mount. It pivots on a large screw, and there is a largish wire spring which extends to engage a small hole in the end of a lever near the arm end, that dissapears into the camera.

The lever with the hole in it is the mirror charging arm, the long shiny lever pushes this towards the front of the camera to tension the mirror springs, when the film advance is operated.

Next to this is a shorter arm which extends over a gear at one end and is free at the other. This is the latch. The gear wheel engages a small pinion which is in fact the end of the blind roller for the closing curtain/blind. A peg on this gear strikes the other end of the latch to move it out the way and release the mirror tension after the shutter has finished, and this in trun resets the mirror, and releases the winder.

When the mirror is charged the mirror charging arm is held in the tensioned position by the 'free' end of the latch. If the shutter is ready to fire the charging arm should be pressing against the free end. If it isn't the camera will not fire.

To fix this it is easier if the shutter is fired. To do this first remove the large screw holding the long arm. Not forgetting the spring! There is a washer which must be removed too. Do not lose this it is important. This gets it out of the way. now push the charging arm towards camera front as far as it will go. You won't get it all the way, as the latch will be in the way, just as far as you can. If it isn't in the way, then this is not your problem!

Holding it in this position, press the shutter release. This should fire the shutter. If it does not fire then you may also have to remove the latch to allow you to push the arm forwards a little more. (In fact if you can hold the arm in the primed position you could replace the catch in the primed position. This is awkward though!)

When the shutter has fired the latch should move to the 'reset' position, allowing the charging arm to be pushed past it's end. If this is OK, you need to push the lever back to the reset postion. The mirror will remain in the up postion until you do this.

Now you can replace the long arm, again not forgetting the spring. The screw that holds that on has a shoulder, that the spring loops around, and the washer has a flat spot in the hole which means it has to be fitted in the right position. The end of the spring should poke through the mirror arm hole. The easiest way to reassemble this is to put the arm in, then fit the washer. Now place the spring loosely in position, and then put the screw in place loosley. This allows you to manuver the end of the sprion into the hole, You can then carefully tighten the screww. The washer has a tendency to become dislodged so you might have to try this a couple of times. (A blob of grease here can help keep the washer in place.)

If that's all OK then you should be able to wind and fire. If everything seems fine, check the screws are firm (Don't overtighten any!) and replace the bottom cover.


This is a very common fault, and is often caused by jarring the camera just at the wrong monent, but it can develop in an old camera (and they all are!) just due to wear. The latch has in fact changed in shape several times in the lifteime of this mechanism (and it was still in use in K1000's in 1997!) and is the mst common single cause of jams in these cameras.

A little lubrication can help. A spot of lighter fluid can be used to remove old oil and grease from the winder gear, the cocking arm pivot, anf the latch pivot. A tiny amount of grease can be applied to the slow moving pivots and contact points only. A tiny drop of watch oil can be used on the latch pivot. and the opeating peg, but no oil must get into the axle or teeth of the gear itself. This can cause uneven and erratic running of the curtain.









Posted on Feb 05, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 185 Answers

Alasca846,

the mirror mechanism is behind the lens mount,this is where the mirror locking lever is located so the mirror box must be removed to properly repair it.
to take the lens mount off remove the leather on both sides, then remove the 4 screws holding the lens mount. carefully remove the mount by prying up the right side ( looking at the front ) with a small knife blade. don't brake off the wires connected to the aperture resistor, remove the plastic part on the top cover.
now you can see the mirror mech. on the right side. the lever is not accessible for repair or lubed without taking out the mirror box. this must be done by a camera repair person.
reverse procedure to return lens mount placing plastic part on top cover first.

Posted on Jan 30, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Asahi Pentax Spotmatic SP The film rewind button is fully depressed and won't pop out, and the shutter button isn't working.


if the camera is jammed for any reason, then the rewind button will not pop out. on this model it was common that the mirror cock lever at the bottom jumped. in which case the camera will jam up.

remove three screws holding the bottom cover, remove cover. in the middle of the camera is a lever that needs to be latched by pushing it forward. the camera should release and revert to normal usage.

if this is not the case then there may be something jammed in the winding or shutter gears. in which case you would have to remove the top cover and/or front covers.

Aug 10, 2013 | Canon EOS-AE-1 35mm SLR Camera

1 Answer

The shutter on my canon a-1 seems to be stuck. After I wind up the film, nothing happens after I press the shutter button. I opened the bottom of the camera up and pressed the L-shaped lever and magnet to...


If you opened the bottom you saw the magnet that holds the shutter /mirror mechanism closed- sometimes it and the lever it holds get dirt or corrosion on them and won't hold the lever when you **** the shutter? it can also be the battery is not dead, but not enough voltage to supply enough power to hold lever.

Aug 24, 2009 | Canon Photography

1 Answer

Pentax ME Super Shutter and Rapid Wind Button...


anmolag,

it could be the rubber bumper next to the fresnel lens has become sticky. very gently ( after removing lens ) try to bring mirror down without forcing it. it should release easily.
if not, rotate the select knob off auto. open film door and check that the shutter is fully deployed, shutters should not be overlapping.
remove screws from bottom cover and remove cover, keep camera up side down so that re-wind button stays put. there is a locking lever under the take up spool ( gray ) . with a pin move lever toward film door and bring advance lever fully to the right , then let it go so it returns quickly.
the shutter should have fired. if not the camera will need to be repaired. get an estimate first as there are no new parts available.

Dec 24, 2008 | Pentax ME Super 35mm SLR Camera

2 Answers

After advancing the film, most times the shutter does not triggers.


Yes, I solved the problem. Apparently the problem was cused by grease aging in the mirror box due to the fact that de camera had not been used for a long time. I alternatively advanced the wind lever an depressed the shutter several times and now the camera is working ok. Regards,

Oct 11, 2008 | Pentax ME Super 35mm SLR Camera

1 Answer

Film Advance Will Not move


Hi,powerpe. The mirror release rod can be located in the bottom of the body once the plate has been removed.(there are three screws on the old k1000's) There is a gear train on the left side when viewed turned over.The mirror cockong rod is towards the rear and a little right of the main shaft.You might need to move a little silver pawl with a pin or micro driver then you can push the mirror **** in to release the reflex mirror.the mirror cocking rod is about 1/8" dia.Hope this helps

Oct 21, 2007 | Pentax K1000 35mm SLR Camera

1 Answer

Light meter failure and shutter button sticking


Set your camera to B and release the shutter ( camera will work in this mode without batteries ) if you can wind ok and release shutter fine then all you need is new batteries. If however your camera is not working when set to B then it is either the shutter or the transport mechanism that need looking at. From experience ( have repaired 100s of Me-supers ) it is likely that your shutter needs attention : rubber components ( and foam rubber ) inside the shutter ( and the mirror box locking mechanism especially ) have perished and need replacing.

Sep 21, 2007 | Pentax ME Super 35mm SLR Camera

2 Answers

Film advance lever


Your camera is cocked but since the shutter is not working you cannot release it and hence your film advance mechanism does not work. ME-super will work without batteries in full manual mode so set your shutter to B and try to release it. If the shutter will not release in B mode then the shutter/mirror box will need servicing : rubber components in the mirror box mechanism have perished and need replacing. After that your camera will be fine for another couple of years.

Sep 18, 2007 | Pentax ME Super 35mm SLR Camera

1 Answer

Film advance lever


Yes this is fairly common with K 1000 and the Spotmatics : although the shutter is cocked and hence you cannot advance film you cannot release shutter because mirror box is not cocked. Remedy : remove bottom cover and locate mirror box lever which protrudes slightely and is movable up and down and is spring loaded. Move upwards until it licks in position ( moving up against spring tension ). Now release the shutter and camera should let you advance the film .

Sep 17, 2007 | Pentax K1000 35mm SLR Camera

1 Answer

Shutter Only Fires at 60


Remove transport/winding lever and loosen the retaining ring underneeth. Gently lift shutter speed dial and reseat it. Tighten the retaining ring and reattach winding lever. ( the shutter speed dial is not engaging the mechanism inside the camera and you need to establish proper connection ).

Aug 24, 2007 | Canon EOS-AE-1 35mm SLR Camera

1 Answer

Shutter wont fire, or auto focus


This sounds like mirror box motor problem ( see enclosed shot from our workshop ) : this cocks the shutter and controls mirror mechanism and when the drive dosnt work properly ( small nylon gear on the motor goes ) camera will develop the the sort of problems you describe.
Can be repaired but will cost $ 150-200 so it is relatively expensive repair.

Jun 01, 2007 | Pentax MZ-50 35mm SLR Camera

Not finding what you are looking for?
Pentax ME Super 35mm SLR Camera Logo

384 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pentax Photography Experts

kakima

Level 3 Expert

102366 Answers

Bill Eager

Level 3 Expert

429 Answers

Greg Cann
Greg Cann

Level 3 Expert

1114 Answers

Are you a Pentax Photography Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...