Where can I download a repair manual for a Sears Kenmore 80 Series Washer model # 25842400?

https://www.searspartsdirect.com/manual/3dwsqwqolw-000582/kenmore-11028812790-washer-parts

The are a number of models and they all have numerical model number, '80 Series' is a group based on a theme. It will be one of these.

https://www.google.com/search?q=kenmore+80+series+washer+manual

..

387780 does not seem to be a valid model number.
If you can locate the model number enter it here at sears Parts Direct.
Parts for Brands Craftsman GE Kenmore Whirlpool and more

Link to videos about washer not spinning.
top loader kenmore washer won spin YouTube

Replace the lid switch and everything will work again.

The following link explains step-by-step how to replace a lid switch on a Kenmore top loader:

http://www.fixya.com/support/r3557193-replacing_a_lid_switch

If you have any questions about this repair, please post back and let me know. I hope this helps you.

NOTE: Kenmore is manufactured by Whirlpool so these instructions will apply.

It's quite possible. First see the Sears parts list for your washer with diagrams of all major parts.

http://www.searspartsdirect.com/partsdirect/getModel!retrieve.pd?modelNumber=+110.28812790&pathTaken=partSearch

Then see the Whirlpool / Kenmore Service manual for these washers and check the troubleshooting section.

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/f7e2147fa98b28cf85257122007475cb/$FILE/L-55.pdf

sounds as though you have a bad lid or door switch if the timer is ok.if not replaced the timer

if it is a direct drive system, it could be the coupler. Maybe a $15 dollar part at sears online parts shop. There is a good video on you tube showing the coupler fix.

how do you seperate the stackables for moving

You can go on to sears website to Manage My Home and pull up your manuel for free. Just have your model number.