It is the duty of the secretary and treasurer of the governing board, where bonds have been issued pursuant to the Institution Bond Act, to forward to the bank at which the bonds are payable, prior to the date on which any installment of interest or any principal amount of any bonds matures, out of the interest and retirement fund, a sufficient sum of money to meet the installment of interest and maturing principal as they become due, plus any service charge which the bank is entitled to receive for its services.