(1) Delivery is conditioned upon timely and proper performance of all duties of the purchaser. Defenses based on nonperformance of the contract are reserved.

(2) In case of default in acceptance or other breach of duties to cooperate by the purchaser we are entitled to claim any resulting damage including but not limited to additional ex-penses, if any. Further damages are reserved. In this case, the risk of loss or damage to the goods passes to the purchaser at the time of such default or breach of duty to cooperate