Are you running the baler up to the full pre set bale size??? There will be a warning beep at about 10cm before final bale size. This can be adjusted but is usually about 10cm.Thanks everyone who has commented. Iv bought the br740a. Iv been out today and baled a few bales got another question know I pressed the automatic wrap system on the control box but for some reason it wont kick in to wrap the bale