Subaru 2004 Legacy Owner's Manual page 345

Driving tips
2. Insert the hitch pin into the hole on the hitch receiv-
er tube so that the pin passes through the ball mount.
3. Insert the safety pin into the hitch pin securely.
4. Pull the ball mount to make sure it does not come
off the hitch receiver.
8-26
1) Hitch ball installation point
HS8012BA
2) Hooks for safety chains
5. Use only a hitch ball that is appropriate for the ball
mount and your trailer. The hitch ball must be securely
installed on the ball mount.
6. Connect your trailer to the hitch ball.
7. Connect the trailer and the hitch with safety chains
that will hold the trailer's maximum gross weight. The
chains should cross under the trailer tongue to prevent
the tongue from dropping onto the ground in case it
should disconnect from the hitch ball. Allow sufficient
slack in the chains taking tight-turn situations into ac-
count; however, be careful not to let them drag on the
2
1
UB8020BB