Adjunct Library Professors. No adjunct Library professor should be assigned a load greater than sixty-seven percent (67%) unless otherwise approved in advance by the appropriate xxxx or educational administrator and vice president. Since library professors are on a 12-month contract and work a total of 1,498 basic assignment hours, the maximum hours for library professors should not exceed 1003 hours annually. Any teaching assignment must be deducted from the allowable LHE for adjunct library professors.