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Maintain an adequate vertical down (tongue) load to maintain control of the trailer (generally 10%)
without exceeding the specified rated capacities.
Other steps and inspections are also required Consult OSHA, D.O.T. regulations, and the
American Trucking Association for complete coupling and uncoupling procedures.
Check that the ball’s load rating is the same as or greater than the coupler’s load rating.
ALWAYS use safety chains.
DO NOT use the top holes for mounting.
Towing
⚠
WARNING
For use with trailers and equipment designed for on-road towing within the stated capacities.
Installation Instruction
⚠
WARNING
Use a secure mounting structure of sufficient strength to support the rated capacity of the coupler
in accordance with SAE J684.
Bolt the coupler to the front of the trailer tongue, bolting through the coupler’s side holes. Use ½”
diameter grade fasteners (8), properly tightened (not included).
Additional bolts may be used in the top holes for extra strength, if desired.
The recommended minimum torque is 80 ft-lbs. (per SAE J429).
Before Each Use
⚠
WARNING
Inspect for proper operation.
Inspect, in particular, the coupling area. Replace when the wear exceeds 1/8
"
(.125
"
) from the
original surface profile.
Inspect for worn, damaged, and missing parts. Replace as required.
Operating Instructions
⚠
WARNING
Summary of Contents for 54604
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