The first step is to adjust the height of the ball. The ball does not tighten down in use and is adjusted to set the height the trailer tongue is held above the cross bar when the trailer locking lever is in the locked position. A quick look at Fig 6 shows the trailer tongue resting flat on the cross bar when the ball height is adjusted correctly. This is a “kind of close“ adjustment so don’t get to critical about the height. A quick check is that the ball height is correct if when you rotate the cam lock lever (little lever with the black handle) the round plate (shown just below the hand in the picture) slides up against the bottom of the trailer tongue.
The two photos above show the trailer coupler, mounted on the tugger, ready to accept the trailer tongue. The two lock “wings” are in the up position. The cam lock lever (little lever with the black handle) is in the up position and the tongue “window” (the notch where the trailer tongue fits) is facing away from the tugger.
3
4
Figure 5 and 6 show the trailer tongue locked on the ball and resting on the cross bar of the trailer coupler.
The next step is to rotate the two locking wings down on the flange of the trailer tongue. This is an important step. The two locking wings will prevent the trailer tugger from rotating under the trailer tongue.
5
6
Fig 9 is another view of the locking wings rotated into the locked positions. Obviously we’ve removed the actual trailer portion of the trailer so you can see just the trailer tongue and how it is connected to the tugger.
The final step is to rotate the cam lock lever down to clamp the bottom plate against the bottom of the trailer tongue as in Fig 10. Figure 11 and 12 look very similar but there is an important difference if you look closely. Note the gap between the trailer tongue (silver part) and the locking plate (black flat part under the tongue). In Figure 10 there is a slight gap and in figure 11 the gap has been mostly closed. I say mostly since each trailer tongue is different and the exact alignment may cause the two plates to be slightly out of square. The important part is that when you rotate the cam lock lever down it actually locks the plate up against the tongue. Rotating the cam lever down raises the plate up against the tongue. Obviously the opposite is also true, raising the cam lock lever lowers the plate away from the tongue.
A
B
Let’s review. Step one is to adjust the ball height. Step 2 is to lower the trailer onto the ball, lock the trailer ball lock on the trailer tongue (little lever on the top of the tongue) just like you are hitching the trailer to your vehicle and rotate the locking wings down.
Step three is to rotate the cam lock lever down to clamp the plates together. Step 4 is to make sure the trailer tongue looks like the picture in step 4.
