Don't open the throttle too quickly, or you may throw the drive belt
off, and are also more apt to raise the water and start priming.

Don't attempt to start the engine with the cylinder cocks closed, but
make it a habit to open them when you stop; this will always insure your
cylinder being free from water on starting.

Don't talk too much while on duty.

Don't pull the ashes out of ash pan unless you have a bucket of water
handy.

Don't start the pump when you know you have low water.

Don't let it get low.

Don't let your engine get dirty.

Don't say you can't keep it clean.

Don't leave your engine at night till you have covered it up.

Don't let the exhaust nozzle lime up, and don't allow lime to collect
where the water enters the boiler, or you may split a heater pipe or
knock the top off of a check valve.

Don't leave your engine in cold weather without first draining all
pipes.