Pick up a DC capable clamp on amp meter before you go.
You are going to have to re-juggle the batteries to separate out the low voltage batteries. Leaving bad in series with good ones will just screw the good ones up.
You can make one good string, one bad string.
I would work on individual string at a time. Of the five bad, hold out the best of five bad. Series connect the four remaining bad batteries and try to charge them up first. If you make some progress, swap in the 5th bad one. Object is to bring all the five bad ones along without getting too much difference in series connected batteries. If one just doesn't come along just leave it out and charge up the remaining four weakest batteries.
No higher then 7.2v per battery til all in series get close to that number. Then you can take to equalize to 7.6v per battery for about 30 mins.
No more charge current then 50 amps per battery at first, watching each battery's voltage. You can take to 65 amps if series batteries voltages are matching fairly close.
Remember the SW4024 charge current setting is in 120vac current NOT battery current. 50 amps at battery is about 12 amps at 120vac at SW4024 charger setting for 26 v batteries. Verify with clamp on DC amp meter.
Battery voltage X battery charge current / inverter efficiency (0.92) = watts of power. Watts of power/120 vac is AC charger setting.