Need a manual for Keystone 8mm movie projector Model K-77.Thanks

Can't find this nor a service manual. However, the following resources may be of some assistance: https://www.oaktreevintage.com/resources_repair/8mm_film_projector_repair_resources.htm

https://www.youtube.com/watch?v=pTdLwRwoqMo

https://www.youtube.com/watch?v=K4NKZ2bMRjo

https://www.ebay.com/b/Tower-Vintage-Movie-Projectors-and-Screens-8mm-Movie-Film-Format/11722/bn_5527825

https://www.worthpoint.com/worthopedia/tower-super-automatic-model-9280-8mm-2106083291

https://www.reddit.com/r/8mm/comments/11ik19h/tower_super_automatic_8mm_projector/

https://www.searspartsdirect.com/brand/0934/sears-parts

Worthpoint and other web sites have listed that model or similar models for sale, and at least one had a manual.

You might try contacting a seller, and ask to purchase only a copy of the manual. Check eBay.com and other sites using Google.com to search.

Examples:

https://www.worthpoint.com/worthopedia/8mm-cine-projector-editor-camera-500351825

https://www.worthpoint.com/worthopedia/matahari-model-116-8mm-silent-cine-1112181970



https://www.worthpoint.com/worthopedia/8mm-cine-projector-editor-camera-500351825

Free Keystone manual:

http://office.manualsonline.com/manuals/mfg/keystone/keystone_projector_product_list.html

Let us know the model number if this doesn't match the one you need.


Free Keystone Projector User Manuals ManualsOnline com

The manual will tell you this.

I strongly suspect a broken belt the covers need to come off.

There is a black and silver knob under the keystone label( right above the automatic label ) on the side of your projector. turn this knob counterclockwise to loosen the covering over the housing unit for the lamb. once the knob is loosened lift the housing unit off of the side of the projector. You wlll see the enclosure where the lamp fits into beneath it.
Make sure the power is off for your projector while doing so. Screw the lamb into the enclosure , then replace the covering and screw the black knob in clockwise until it tightens.

Try downloading it from internet.

http://cgi.ebay.com/Keystone-K-98-K-98Z-8mm-Automatic-Projector-ManualCOPY-/250402815400?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3a4d2bbda8

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Re Keystone 68 projectors:
I join the growing throngs of folks who wish to view their family archives in 8 mm before submitting the reels to the digitals for conversion. Doesn't anyone have an answer for us? I continue to search, if I find, I'll post.
Fauvette