TM 9-2330-381-14
1-9.
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (CONT)
COUPLING DECAL (8). The coupling decal (8), located on the front streetside corner of the gooseneck, provides data
required for coupling and uncoupling the semitrailer from a tractor.
DATA AND LUBE PLATES (9). The data and lube plates (9), located on the front left side of the gooseneck, descriptively
identify the semitrailer and provide quick reference for lubrication.
WHEEL CHOCKS (10). Four wheel chocks (10), two on each side of the gooseneck, are used to chock the front outer
bogie wheels of the semitrailer.
AUXILIARY POWER UNIT (11). The auxiliary power unit (11), hereinafter referred to as the APU, is located beneath the
gooseneck steps. The APU is a liquid cooled, fuel injected, electric start, single cylinder diesel engine used to drive a
hydraulic pump which powers the entire hydraulic system.
CABLE SHEAVE (12). The cable sheave (12), located on the gooseneck streetside pivot pin, is used for winching off
disabled payloads. The cable sheave keeps winch cables low enough to be passed under the payload to the snatch block
and back to the payload during unloading procedures.
GOOSENECK HYDRAULIC CYLINDERS (13). Two hydraulic cylinders (13), one located on each side between the
gooseneck and platform, provide stability and adjustability for the gooseneck assembly when coupling the semitrailer to a
tractor.
CABLE GUIDES (14). Two cable guides (14), one located on each side of the gooseneck, are used with the tractor
winches to load and unload payloads.
GOOSENECK SAFETY RAIL (14.1). Two gooseneck safety rails (14.1), located on each side of the guardrails (16 and
17), allow the operator to safely connect and disconnect the winch cables from the payload while on the gooseneck steps.
When in use, the safety rails are extended rearward toward the trailer platform. The safety rails must be retracted during
operation to prevent interference with the payload during gooseneck movement.
GOOSENECK SAFETY RAIL CLAMP (14.2). The gooseneck safety rails are held in the retracted position by the clamp
(14.2) located on each safety rail just behind the cable guides (14).
APU CONTROL BOX (15). The APU control box (15), located on the curbside of the gooseneck, contains the controls
required to start and run the APU.
STEPS AND GUARDRAILS (16 and 17). The steps (16) and two guardrails (17), mounted on top of the gooseneck
assembly, allow the operator to move around safely and efficiently while on top of the gooseneck operating the APU
and/or setting up for loading and unloading operations.
SPARE TIRES AND DAVIT (18 and 19). Two spare tires (18) are mounted to the top of the gooseneck and can be
lowered to the ground with the davit (19) whenever a tire change is required.
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