No portion of the pension fund shall, either before or after a board's order of distribution to any retired firefighter or his or her beneficiaries, be held, seized, taken subject to, or detained or levied on by virtue of any process, injunction interlocutory or other order or judgment, or any process or proceeding whatever issued by any court of this State, for the payment or satisfaction in whole or in part of any debt, damages, claim, demand or judgment against any firefighter or his or her beneficiaries, but the fund shall be held, secured and distributed for the purposes of pensioning such firefighter and beneficiaries and for no other purposes whatever.
40 ILCS 5/4-135