Wrap your alternator, plug your air intake well. Since it has been sitting for a while with all types fr dust build up, you may want to remove all cabling & clean the terminal posts cable end, then spray with a dielectric grease, and open each wire harness connector, clean M&F contact pins with electric contact spray cleaner & receptacles & spray with a dielectric grease. Do one at a time so you know where it was connected to - you may know thsi but I've learned from my mistakes.

We have a waste water holding tank in our facility that gets treated before it is let go.

Does the forklift run?

Pressure wash it out, obviously take care where you aim the water.

I've pressure washed plenty of Cesab / BT & Linde counter balances out, they soon dry out.

? other than the enviromental rules about washing crap down the drain?