TM 9-2320-211-10
shipper braces support boom during heavy real lift operations and during cross-
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country travel.
Shipper brace retaining brackets are used to secure shipper braces when not in use.
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Electrical cable connector are connected to the semitrailor electrical receptacle to
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provide power for the semitrailer lights,
Emergency airbrake hose line and coupling is connected to the emergency airbrake
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coupling on the left side of the semitrailer. The semitrailer emergency brake system is
activated if the air system fails.
Airbrake hose coupling shutoff cocks are turned on to allow air to enter the semitrailer
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brake system and must be turned off before the semitrailer can be uncoupled.
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Outrigger base provides a firm base to support the outriggers.
Outriggers support truck frame during heavy side lift operations to prevent twisting
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stains.
L.-shaped outrigger retaining pins are used to secure outriggers in frame tubes when not
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in use.
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Boom jacks provide support for crane boom and shipper during heavy side or direct
rear lifts.
Warning light switch activates a warning lamp on the left fender during towing
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operations.
Airbrake hand control lever controls braking action on a semitrailer or towed load
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equipped with airbrakes. Brakes are applied when the lever is moved down.
Floodlight master control witch must be placed in ON position before the individual
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toggle switch on any floodlight will operate.
Electric brake lock switch button is used to lock service brakes in hold position during
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crane operation.
TA 066989
