Take good pictures before disconnecting to aid in reconnect.
If confused, make cable markers from masking tape as each cable is removed.
Use chassis battery disconnect switch.
If 8D batteries, they weigh about 110lbs each.
A good idea to remove rings and watch.
Clean off connectors with baking soda solution.
Reconnect the ground to chassis cable last to avoid sparking.
Flip the disconnect switch
1995 38' CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
Gillig Bus Chassis 05 Jeep Wk