Current through 2024-51, December 18, 2024
Subsection 222-1-200-10 - COUPLING DEVICES1. FIFTH WHEELS A. Mounting to Frame (1) Reject vehicle if any fasteners are missing or ineffective. (A fastener is not considered missing if there is an empty hole in the device but no corresponding hole in the frame or vice versa).(2) Reject vehicle if there is any movement between mounting components.(3) Reject vehicle if any mounting angle iron is cracked or broken.B. Mounting Plates and Pivot Brackets(1) Reject vehicle if any fasteners are missing or ineffective.(2) Reject vehicle if any welds or parent metal is cracked.(3) Reject vehicle if there is more than 3/8-inch horizontal movement between pivot bracket pin and bracket.(4) Reject vehicle if pivot bracket pin is missing or not secured.C. Sliders (1) Reject vehicle if any latching fasteners are missing or ineffective.(2) Reject vehicle if any fore or aft stops are missing or ineffective.(3) Reject vehicle if there is more than 3/8-inch movement between the slider bracket and the slider base.(4) Reject vehicle if any slider component is cracked in the parent metal or a weld.D. Lower Coupler (1) Reject vehicle if the horizontal movement between the upper and lower fifth wheel halves exceeds 1/2 inch when coupled.(2) Reject vehicle if the operating handle is not in the closed or locked position when coupled.(3) Reject vehicle if the kingpin is not properly engaged when coupled.(4) Reject vehicle if there is separation between the upper and lower coupler, allowing light to show through from side to side when coupled.(5) Reject vehicle if there are any cracks in the fifth wheel plate.(6) Reject vehicle if the locking mechanism parts are missing, broken or deformed to the extent that the kingpin is not securely held.(7) Reject vehicle if the locking mechanism is severely rusted and not properly lubricated.2. PINTLE HOOKS A. Frame Mounting (1) Reject vehicle if there are any missing or ineffective fasteners.(2) Reject vehicle if mounting surface cracks extend from the point of attachment. (For example, cracks in the frame at the mounting bolt holes).(3) Reject vehicle if the mounting is loose.(4) Reject vehicle if the frame cross member providing the pintle hook attachment is cracked.B. Integrity of Pintle Hook Assembly(1) Reject vehicle if there are cracks anywhere in the pintle hook assembly.(2) Reject vehicle if there are any welded repairs to the pintle hook.(3) Reject vehicle if any part of the horn section is reduced by more than 20%.(4) Reject vehicle if the latch is insecure.3. DRAW BAR / TOWBAR EYE A. Frame Mounting (1) Reject vehicle if there are any cracks in the attachment welds.(2) Reject vehicle if there are any missing or ineffective fasteners.B. Integrity of Drawbar I Towbar eye (1) Reject vehicle if there are any cracks.(2) Reject vehicle if any part of the eye is reduced by more than 20%.4. DRAW BAR I TOWBAR TONGUE A. Slider (power or manual) (1) Reject vehicle if the latching mechanism is ineffective.(2) Reject vehicle if the stop is missing or ineffective.(3) Reject vehicle if there is movement of more than 1/4 inch between the slider and housing.(4) Reject vehicle if any air or hydraulic cylinders, hoses or chambers are leaking.(5) Reject vehicle if any pivot pins are worn exceeding the manufactures specifications on wheel lifts, cross bars, under reach cross bars and tow bars on a wrecker.B. Integrity (1) Reject vehicle if there are any cracks.(2) Reject vehicle if there is movement of V.. inch or more between the subframe and the drawbar at the point of attachment.5. SAFETY DEVICES A. Reject vehicle if any safety device is missing on a vehicle required to have safety device(s).B. Reject vehicle if any safety device is unattached or incapable of secure attachment.C. Chains and hooks; (1) Reject vehicle if there is wear to the extent of a measurable reduction in the cross section of any link.(2) Reject vehicle if there is an improper repair, including welding, wire, small bolts, rope, or tape.(3) Reject vehicle if any link is bent, stretched, twisted, cut, or in any way distorted.D. Cable(1) Reject vehicle if any cable is kinked or there are broken cable strands.(2) Reject vehicle if there are improper clamps or clamping. The saddle clamp should always be on the 'live' side of the cable.6. SADDLE MOUNTS A. Method of Attachment (1) Reject vehicle if any fasteners are missing or ineffective.(2) Reject vehicle if any mountings are loose.(3) Reject vehicle if there are any cracks or breaks in a stress or load bearing member.(4) Reject vehicle if the horizontal movement between upper and lower saddle mount halves exceeds \4 inch. C.M.R. 16, 222, ch. 1, § 222-1-200, subsec. 222-1-200-10