1998 Chevrolet Blazer Owner's Manual - Page 228

Safety Chains You should always attach chains between your vehicle The trailer parts can withstand 3,000 psi and your trailer.Cross the safety chains under the tongue (20 650 kPa) of pressure. of the trailerso that the tongue will not drop to the road if it becomes separated from the hitch. Instructions The trailer's brake system will useless than about safety chains may provided by the hitch be 0.02 cubic inch (0.3 cc) of fluid from your vehicle's manufacturer or by the trailer manufacturer. Follow the master cylinder. Otherwise, both braking systems manufacturer's recommendation for attaching safety won't work well.You could evenlose your brakes. chains and do not attach themto the bumper. Always If everything checksout this far, then make the brake leave just enough slack so you can turn with your rig. fluid tap at the port on the master cylinder that sends And, never allow safety chainsto drag on the ground. fluid to the rear brakes. But don't use copper tubing for this. If you do, it will bend and finally break Use off. Trailer Brakes steel brake tubing. If your trailer weighs more than 1,000 lbs. (450 kg) loaded, then it needs its own brakes -- and they must be adequate. Be sure to read and follow the instructions for the trailer brakes so you'll be able to install, adjust and maintain them properly. Your trailer's brake systemcan tap into the vehicle's hydraulic brake systemonly if 4-46