I am trying to find the trays for the Sawyer rotomatic 700 series. I am unable to determine if it is the round or rectangular trays?

From my days of using my parent's slide projector, the motor does keep running if you hold your finger on the cycle button. One press is one advance. There is an owner manual here for $15.

https://www.tias.com/13486/PictPage/3924100925.html

only $3.45 here

https://uscamera.com/product/sawyers-rotomatic-owners-manual/

Two models of 'Rotomatic' here

https://www.camerabooks.com/Departments/Other-35mm-Canon-Minolta-Olympus-Pentax-etc/Slide-Projectors-ORIGINAL-Instruction-Manuals.aspx?sortorder=2&page=6

There was a service and parts manual that sold on eBay.

https://www.google.com/search?q=sawyer+600a+parts+diagram&rlz=1C1QJDB_enCA643CA644&sxsrf=APq-WBvi21qdbycnu4OqofY2PAVZhzz6RA:1647024163629&tbm=isch&source=iu&ictx=1&vet=1&fir=grvJsn-rAAA1oM%252CZEsK5BTXfU8GNM%252C_%253Bp_qycJnxusc3vM%252CBG46hZSRIDuLQM%252C_%253BVeQ6WkdpAiIr9M%252CnaXiFzEyN2h46M%252C_%253BC46DWP4pfU8KsM%252Cpd1wZn6sH0a1UM%252C_%253BXzPZq9EGJedzeM%252CLl7VTv2GP3c44M%252C_%253BiLJqW3AYsx8g7M%252CgJ-c6vUX43QLFM%252C_%253BR3gHw0ea0srU6M%252C5-gT2VTSmRU49M%252C_%253B2lD_I_KwxlsQmM%252C25J8CTGTlX8CdM%252C_%253BgEbMr7P9NxTJAM%252CDNXdB-6nGYon_M%252C_%253Bi-_Av5TeTWWT6M%252CzkETBc_f1FjHwM%252C_&usg=AI4_-kRVog3QtBI_OM2hcqfKajtmxTqohg&sa=X&ved=2ahUKEwian9aR2772AhWGHM0KHQa4ByMQ9QF6BAgJEAE#imgrc=C46DWP4pfU8KsM

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Not familiar with this particular model, but on many slide projectors rotating the front lens focuses the image. If you have tried this and been unsuccessful, then the slide retaining mechanism may have become displaced or need adjustment.

You'll need to cut the rectangular duct shorter and use the appropriate rectangular to round adapter.

I bet it must be grease free, it came like that.

Sawyers Rotomatic Slide Projector Downloadable Manual Manuals Downloadable...

Go to the link below. On page 23 will tell you how to turn off the child lock.

http://laundry.manualsonline.com/mdownloads/338a7e94-97f6-4c32-a1ad-ff603a7f9933.pdf

Good Luck and please rate 4 thumbs up and please leave a testimonial

Hi..!
battery is like a silver coin....
round in shape....
Amit..

They used to sell them at sears. Its a common duct item for vents. Try home Depot.

You have to make sure that themetal rod is placed over the rectangle lever in the back of the freezer....... When you pull the tray out the rectangular lever goes up...you have to pull it back down and make sure to place the metal rod through the rectangular shaped thingee in the back.