Pentax S1a CLA (sticky shutter and mirror hanging up) Tutorial by Eugene Pate

Pentax S1a

CLA (sticky shutter and

mirror hanging up)

Tutorial by Eugene Pate

https://learncamerarepair.com/

https://www.facebook.com/groups/360490091319202/

POST #1 sticky shutter and mirror hanging up

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POST #2

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The first thing any good camera technician does with any Pentax camera is pull the button
cover, from the bottom you can see the lower winding gear set to the far left, the lower shutter
mechanism to the right of that and then the mirror charge lever and related gears ... all before
you see the tripod socket...I hit gold with this simple and basic check...if you look closely you
can see the problem, a small chunk of debris that looks like lint is caught between the shutter
curtain lower gear and the mirror release gear (the gear with the post) , also if you look closer
at the workbench that torn chunk of film was also caught in the bottom...cleaning out the
blockage actually got the camera shutter and mirror working again...but being a good camera
repairman, aim going to take the camera apart down to the shutter and mirror lubrication points
and do a real CLA

POST #3

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Using a needle nose plairs hold the rewind fork from the back, lift the rewind knob handle and
simply unscrew the rewind knob assembly - counterclockwise removes it and clockwise tightens
it, after you lift off the rewind knob, you can see the reminder dial underneath, you should use a
spanner with the appropriate pointed tips to unscrew the scanner nut (disc) - make a habit of
organizing the parts in order, it'll make your job a lot easier...

POST #4

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Moving over to the film counter, find the three small slotted set screws on the circumference
of the counter cover, loosen the screws being carefull not to loose them, they are slotted for a
flat screwdriver, right hand threads, 1.4mm screws with a point to hold the cover in place, with
the screws loose the dial may rotate in place a little looser and it should lift off. next - the flat
head slotted screw holding the counter dial down is LEFT-HANDED!!! turn it clockwise to
remove gently DON'T BREAK IT! you'll be sorry if you break it...lift off the parts including the
funny looking gear below it. Change your spanner tips to the slotted tips and remove the
spanner nut holding the spring loaded lever below that ... it's right handed...yeah spring loaded,
be careful not to loose the spring - they fly off just when you don't expect it, lift off the housing

below the lever....did I mention stay organized and take digital photos to refer back to...unless

you're crazy or have a manual handy...remember Pentax reserved the right to change things
and they did now and then so TAKE NOTES and PHOTOS...

POST #5

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Two right handed slotted screws hold down the winding lever, remove those and take the
time to photograph your parts for when you accidently move them and can't remember the order
they go in...

POST #6

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There are three small slotted right handed set screws holding the shutter speed dial, turn the
dial to B (bulb) and all three screws are reachable...I recommend setting all Spotmatic cameras
to Bulb to remove the shutter selector dial...the K1000 is a Spotmatic design. lift off the dial and
for God's sake don't loose the screws (if youre like me and have a camera graveyard you can
rob parts you loose...but that's sloppy). one screw holds down the top cover, remove it and
gently wiggle the top cover up and off...GENTLY there are loose parts underneath! if you were
careful you'll see the shutter release button sitting on top of the release lever - its loose, inside
of it is a pin that the cable release pushes down to replease the shutter, set these aside and
take another photo!

POST #7

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You turned the camera over didn't you?... I hope not because now's the time to carefully look
over the inside the top cover and see the two loose parts I forgot about - a cover ring at the rewind
side and a spacer ring over the wind shaft...in my old age I forgot these, remove them and set
them aside...

POST #8

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Removing the Front Plate - four slotted chrome plated screws hold the plate in place, lay the
camera body flat and remove the four screws, do not move the camera because there are front
plate spacers behind the screws that the factory places there for critical adjustments at the lens
mount to the film plane (polished guide rails in the film compartment), sometimes these spacers
are loose and sometimes held in place with either a dab of grease or soft cement. Some spacers
are round washers of varying thicknesses or as in this case they are "U" shaped, sometimes
there are multiple spacers at one location, if you look closely you can see they're placed between
the body casting and the inside of the front plate...Don't lose these or mix them up, if they're
loose, use a dab of clear fingernail polish to hold them in place, alternately you can use a spot of
Pliobond Cement...

POST #9

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Looking at the bottom on the rewind end you'll see the red and blue FP and X Sync wires are
held by screws, loosen the screws, lift off the connectors and you don't even need a soldering
iron, I always straighten the wires because when you remove the mirror unit these wires will
have to pass through a hold in the body casting, I like to remove the tripod socket, under the
tripod socket you can see the bottom of the slow speed governor (escapement)...