Coupling Trailer To Truck
14. Press the trailer air supply valve in the truck to fill the trailer air tanks. Do not release parking brakes. 15. Perform pretrip inspection. See section 3.5. 3.5 PRETRIP INSPECTION Perform the inspections and checks before towing trailer: • Check all lights for operation. • Check that ABS light on street side rear corner of the trailer is not illuminated. • Check that all safety decals are in place and in good, readable condition. • Check that all reflectors and in place and in good condition. • Check air pressure on all tires. Air pressure is listed on the Certification/VIN tag. • Check and inspect all tires. If a tire has a bald spot, bulge, cut or cords showing, replace the tire(s) before towing trailer. • Check wheel lug torque. See the Maintenance Section of this manual. • Check the wheel hubs for signs of lubricant leakage. • Check for broken or missing leaf springs or verify that air suspension springs are inflated. • Check electrical harness and air hoses from truck for damage. • Listen for air leaks in hoses and air suspension (if equipped). • Check brakes for wear and adjustment, and verify the brakes function properly. Repair or replace any worn, damaged, leaking, broken or non-functioning items before towing the trailer.
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