Any payments due to the plan from the participant may be paid in monthly installments
over a period not to exceed ten years. Such installments shall bear interest at the
rate of return assumed by the actuaries of the fund or at the prime rate as stated
in the Wall Street Journal on the first business day on or after April 1 of any year,
plus two percent, whichever rate shall be greater. The amounts due shall be deducted
from any compensation due the participant or from retirement benefit payments, as
applicable. The board of trustees shall require the assignment of a life insurance
policy in an amount at least equal to the amount due to the plan or the maximum amount
of life insurance provided to the participant by the employer. No person shall be
entitled to receive any retirement benefits under the terms of the plan unless the
amount of indebtedness of such individual to the plan is less than the amount of life
insurance provided to such individual by the employer.