8
TM 5-3805-293-23-1
FIELD MAINTENANCE
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EQUIPMENT DESCRIPTION AND DATA
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002
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
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1. The 120M Motor Grader provides the Army with the capability of rough and finished grading, low and high
bank sloping, flat and V-ditching, scarifying bituminous road mixes, and snow removal. Mission support role
includes construction and maintenance of roads, airfields, hardstands, drainage, and site preparation for
pipeline and river crossing.
2. The 120M Motor Grader has excellent maneuverability; fast, precise blade control without drift; superior
visibility, convenience, and safety; and an advanced cab design featuring joysticks for control.
3. The 120M Motor Grader front frame design changed from a tubular frame (Figure 1) to a welded box frame
(Figure 2). A serial number break is used to designate designs. Serial number prefix CBS designates
machines with a tubular frame and serial number prefix RMY designates machines with a welded box frame.
Figure 1. Tubular Frame Serial Number Prefix CBS.
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Figure 2. Welded Box Frame Serial Number Prefix RMY.
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