Follow the wires to see with one is battery 1 and which one is battery 2. Choose you primary as the one that is your cranking battery, and leave the selector on that one (S/B 1). If you have a 'low' main battery, you can use 1+2 to 'jump start'. If it is totally dead you can use 2 in a pinch. The switch is only hooked into 12 volts from your 36 volt series for your TM, so it is not an issue.
Edited by David Burton (08/24/17 09:08 PM)
Edit Reason: typo, stupid keyboard
2015 Skeeter FX 21
...and down goes PhotoBucket with the new Terms of Service... I predict they will be out of business or begging for forgiveness inside a month. 6/30/2017