Locks on our pop-ups always cracked me up. I usually just leave everything unlocked. I don't want a thief tearing everything up to get in when they're going to gain access anyway. That being said, if it's the only method of securing a door or latch that can be a pain when stuff keeps coming open. If so you should be able to swap it out for a 751 or better yet, another type locking mechanism. There's usually some sort of retention clip on the back side you pull/slide out and the lock should come right out. Find another that fits the hole and you're in business.
