22 SAFE COUPLING PROCEDURE
2. UNCOUPLING PROCEDURE 2.1 SEMI TRAILERS 1. Position the tow vehicle and trailer on firm level ground that is clear of people and obstacles.
2. Chock the trailer wheels and set the trailer brakes. 3. Slowly back the tow vehicle tightly against the trailer. 4. Set the tractor brakes.
5. Lower the landing gear to eliminate any gap between the ground and the landing gear foot. Do not drop the trailer on the landing gear legs of any design. See Section 2.1.2 before lowering the landing gear if you trailer is equipped with air ride. 6. Landing gear and landing gear frames are not all designed for the same loads.
Do not assume that the landing gear or landing gear frame on your trailer can support a loaded trailer.
Not all landing gear or landing gear frames can support a loaded trailer even in an emergency situation. EVEN IN AN EMERGENCY SITUATION, only landing gear equipment with an attached original Manufacturer’s Serial Plate that reflects a LOAD RATING that equals or exceeds the loads the operator plans to place on the equipment, may be deemed eligible by the operator to be lowered onto the landing gear loaded.
NOTICE
CAUTION SUPPORTING A LOADED TRAILER ON THESE LEGS MUST BE AVOIDED. ANY DAMAGE OR LOSS CAUSED BY UNCOUPLING A LOADED TRAILER ON THESE LANDING LEGS IS NOT THE RESPONSIBILITY OF MAC TraILER ENTERPRISES, INC.. TAKE EVERY PRECAUTION POSSIBLE IF AN EMERGENCY SITUATION REQUIRES UNCOUPLING A LOADED TRAILER. PRECAUTIONS: 1. The landing gear, frame, and support braces must be in proper repair. 2. The trailer must be on level ground and all personnel must stand clear. 3. The landing surface must a solid, rigid base, not subject to settling (i.e. concrete). 4. Evacuate all air from the air bags on air ride suspensions prior uncoupling. 5. The landing gear feet must be under load prior to uncoupling. 6. DO NOT ALLOW TRAILER TO DROP FROM ANY DISTANCE WHEN UNCOUPLING. 7. Install support under the kingpin immediately after uncoupling. 8. Multi-compartment trailers CANNOT be uncoupled with only the forward compartment loaded or on trailers with their load biased to the front in any manner. 9. Do not exceed the rated load of the trailer, or any trailer components.
THIS IS A TRAILER-SPECIFIC DECAL AND ONLY APPLIES TO A 2-SPEED LANDING LEG PROPERLY INSTALLED AND SUPPORTED.
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