MLATION wrote:
There's no trigger on these hitch heads. They are positive locking by force. In order to close them you need to push very hard on the back of the jaws. It takes a lot of pressure to lock them manually and I've never been able to do it as both jaws need to be pushed at the same time.
There is an easy way if you are just wanting to test. You could remove the spring that holds the jaws open and then you'll be able to close them with your hands and then the block will slide into place. The spring is located on the underside of the head at the back of the jaws. Just don't forget to put it back in correctly if you do this.
For the poster that said they had to push the lever in to lock the hitch. There's something wrong if you have to do this to get it locked. This hitch should automatically close and lock the lever to the 8 o'clock position when you back into it with the lever set in hitching position at 9 o'clock.
Thanks. I removed the head unit from the base, and there are actually two springs in the jaw. One is immediately visible. The second you can barely see, as it's above the first spring, up higher in the mechanism. I think I could remove the bottom spring, but I would have to dismantle the head unit to get to the top spring.
Using the clamp, I can partially close the jaws, but they reach a point where apparently the clamp can't apply enough pressure to get them to snap shut. I don't really want to dismantle the head, so I'm cleaning and lubing everything and then will mount the head unit back on the base. I can't see any obstruction that could be keeping the jaws from closing.
