568. An application for revocation of the judgment must include an affidavit setting out the grounds on which the application is based and the revocation is sought, and be filed with the court office within 30 days after the party becomes aware of the judgment, but not more than six months after the date of the judgment, these being strict time limits. If, on the face of the record, the grounds appear sufficient, the court may stay forced execution of the judgment; the court clerk then summons the parties so that they may be heard on the application for revocation and, if applicable, on the merits of the dispute.