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 TM 9-2330-331-14&P
KINGPIN/UPPER COUPLER PLATE REPLACEMENT
INITIAL SETUP:
Equipment Conditions
Materials/Parts
Ground Boards Emplaced
Locknuts (WP 0080 00-25)
Landing Legs Down
Bolts (WP 0080 00-25)
Tires Chocked
Washers (WP 0080 00-25)
Semitrailer Disconnected from Prime Mover
References
Tools/Test Equipment
TC 9-237
General Mechanic's Tool Kit (WP 0077 00-9)
Shop Equipment, Field Maintenance (WP 0077 00-9)
Personnel
Welder's Tool Kit (WP 0077 00-9)
Two
REMOVAL
WARNING
Kingpin/upper coupler plate weighs 302 lbs. (137 kgs). Caution
must be used during removal and installation to avoid serious
injury or death.
CAUTION
When replacing kingpin, inspect all supporting structures for rust, broken
welds, and proper drainage. Structure area interior must be inspected
and protected against rust. Proper drainage must be maintained to
prevent damage to equipment.
1. Remove front center floor boards according to WP 0061 00-1.
12
3
4
Figure 1. Kingpin/Upper Coupler Plate
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