Kubota RTV520 Operator's Manual page 34

OPERATING THE ENGINE
10. Disconnect the jumper cables in the exact reverse
order of attachment. (Steps 8, 7 and 6).
Connect cables in numerical order.
Disconnect in reverse order after use.
(1) Dead battery
(2) Lay a damp rag over the vent caps
(3) Jumper cables
(4) Helper battery
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RTV520