TM-9-2330-335-14-P
SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)
SEPTEMBER 2008
TM-9-2330-335-14-P - Page 526 of 640
TM 9-2330-335-14&P
0090-4
0090
KINGPIN REPLACEMENT RECOMMENDATIONS
00090
1.
A kingpin should be selected which is similar to the type removed or, if of a different style, one which can be
adequately braced. The kingpin must also be matched to the thickness of the upper coupler to maintain the SAE
dimensions. Kingpins are manufactured in different lengths to match the thickness of the upper coupler.
Improper selection will result in a kingpin that is too long or too short (see Figure 5).
Figure 5.
Replacement.
090
2.
Installation Procedure Recommendations.
Because of its important role, the kingpin must be properly installed. Proper
installation includes an adequate upper coupler design, with bracing, which meets the requirements of SAE J133 and
welding personnel who are properly trained and certified. To determine the specific material used in your kingpin, refer to
the proper kingpin literature. The kingpin must not be welded to the upper coupler at the 2.88 in. (7.3 cm) diameter
interface (see Figure 4). Finally, the installer should take adequate precautions to protect the trailer, himself, and
others during the installation process (see Holland Service Bulletin XL-SB14 for additional welding procedures on
motor vehicles).
END OF WORK PACKAGE
447-0093
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