A bad solenoid or starter will not damage a properly wired switch.
Things that can damage a switch are:
Melted terminals. If the original switch failed in such a way that the plug or connecting terminals were heat damaged, and the damage was not repaired, the new switch will soon fail because the damaged terminals will not make tight connections, overheat, and ruin the new switch. Very common to see this, especially if heavy current draw accessories, like AC blower motors, are run through the switch.
Improperly wired. This can happen if something on the ignition, accessory, or start circuit has been changed in such a matter that too much current is passed through the switch.
Shorted to ground. If a wire feeding the ignition, accessory, or start circuit is shorted to ground, as in burned against the exhaust, pinched, abraded, mouse chewed, anything that causes the wire to contact any grounded surface, can arc the switch contacts, ruining the switch.
It is possible you got a defective switch, but before installing another, do some investigating. If it is wired wrong, or a problem with the connections, it will only ruin the new switch.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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