1994 Chevrolet Astro Owner's Manual - Page 181
1994 Chevrolet Astro Manual
Page 181 highlights
0 Will the trailer parts take 3,000 psi (20 650 kPa) of pressure?If not, the trailer brake system must not used with your vehicle. be If everything checks out this far, then make the brake fluid tap at the port on the master cylinder that sends fluid to the rear brakes. But don't use copper tubing for this. If you do, it will bend and finally break off. Use steel brake tubing. Driving with a Trailer Towing a trailer requires a certain amount experience. Before setting out of for the open road, you'll want get to know your rig. Acquaint yourself to with the feel of handling and braking with the added weight the trailer. of And always keep in mind that the vehicle you driving is now a good are deal longer and not nearly responsive as your vehicle is by itself. so Before you start, check the trailer hitch and platform, safetychains, electrical connector, lights, tires and mirror adjustment. the trailer has If electric brakes, start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakesare working. This lets you check your electrical connection at the same time. During your trip, check occasionally to be sure that the load secure, and is that the lights and any trailer brakes are still working. 4-27