1. When the guardian appointed for a person is not the conservator of the property of that person, no bond shall be required of the guardian, unless the court for good cause finds it proper to require one. If no bond is initially required, the court may, nevertheless, for good cause, at any subsequent time, require that a bond be given.
 2. Every conservator shall execute and file with the clerk a bond with sufficient surety or sureties except as provided in section 633.175.