Kingpin & Upper Coupler Plate Inspection
From SAF-Holland, this video demonstrates the inspection procedures for Holland Trailer Kingpins and upper coupler pates. The tools used during inspection include the SAF-Holland Kingpin Gauge (TF-0010), a 48″ straight edge, and a tape measure.
Training Video
- Title: Holland Kingpin Inspection Procedures
- Source: SAF-Holland
- Run Time: 4:40
Kingpin Weld Repairs Prohibited
Kingpins are made from quenched and tempered alloy steel. Weld repairs of any type will affect the strength and wear resistance of the kingpin. Additionally, arc strikes or weld craters could develop a stress riser, leading to a fatigue failure. For these reasons, Holland warns against any weld repairs. If any deficiencies are noted during kingpin inspection, the kingpin should be replaced.
Download: Holland Document XL-SB020
For Kingpin Maintenance and Replacement Recommendations, download Holland document XL-SB020.