Response to 1. Ensure that all power to the power pack and the controller is disconnected/turned off at the circuit breaker. 2. Before removing the cell for cleaning, shut off any necessary valves to prevent any water loss. 3. Remove the terminal cap and cell leads. 4. Undo the locking ring. If required, use the locking ring tool provided (see Figure 24). 5. Remove the cell (see Figure 25). 6. Refit the terminal cap on the cell and invert (see Figure 26). 7. With protective glasses and gloves on, add one (1) part acid to ten (10) parts water and mix. 8. Fill the cell to the top of the electrode plates with the acid solution. Leave solution in cell no longer than 30 min.

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