25 SAFE COUPLING PROCEDURE
11. Get out of the tractor and visually inspect that the locks are closed.
If you do not obtain a proper couple, repeat wheel that fails to operate properly.
12. Raise the landing gear, stiff legs, or other trailer support. 13. Re-check the brake lines and power cord. 14. Remove wheel chocks and continue with pre-trip inspection.
1.2 TRUCK TO PULL TRAILER -OR- SEMI TRAILER TO PULL TRAILER. When coupling your truck or semi trailer to a pull trailer, refer to the diagram below for information on operating the coupler.
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