TM 5-3895-379-10
EQUIPMENT DESCRIPTION AND DATA
EQUIPMENT CHARACTERISTICS, CAPABILITIES AND FEATURES
NOTE
Characteristics, capabilities and features are the same for the CB534B and CB534C Rollers, Motorized,
Vibrating Tandem Steel Drums except as noted.
1.
Characteristics.
a.
The roller is designed to be operated by one operator.
b.
The motion of the roller is controlled by the operator using a steering wheel and propel control lever (joystick).
c.
The roller is propelled by a hydrostatic transmission driven by a four-cylinder, turbocharged engine.
d.
Compaction is achieved with two cylindrical drums. Hydraulic motor-driven, eccentric weights produce vibration
in the drums which enhances compaction.
2.
Capabilities and Features.
a.
The roller has a static tip angle range of 40 to 50 degrees. The static tip angle is the slope angle where a stationary
roller will begin to tip over to the side when it is parallel to the slope, in straight-ahead travel position.
(1)
Roller operating stability depends upon many factors including operating speed, steering, braking, terrain
conditions, fluid levels, and most of all operator's skill and judgement.
(2)
The best operating roller stability indicator is the human operator with the ability to comprehend working
conditions based on the relevant environmental situation and the operator's feel for the roller to predeter-
mined situations potential hazards and determine the proper operating decisions to keep the roller in a safe
operating mode.
b.
Vibration selection allows independent vibratory or static operation of either drum.
c.
Two amplitudes of vibration (high and low) are always available to the operator to accommodate the needs of a
variety of operations.
d.
A water spray system wets the drum to help prevent hot asphalt from sticking to the drum surfaces during the com-
pacting operation. Water spray can be constant or intermittent to accommodate the needs of a variety of environ-
ments. Two identical but separate tanks, each with their own pump and filter, are located on the front and rear of
the roller and allow for extended operation between fill-ups. A tie line is provided allowing the operator to use one
pump and tank to supply water to spray both drums in the event of failure of the other pump.
e.
60/40 articulation simplifies maneuvering of the roller. 60% of the roller is behind the pivot, while 40% is ahead of
the pivot. This allows the operator to concentrate on only one drum when entering or leaving a curve, and decrease
risk of damage when moving roller away from curbs or other stationary objects.
f.
Operator station pivots 90 degrees in either direction to allow the operator to view drum surfaces and edges during
back-and-forth rolling operation. The gauges and controls move with the operator station.
g.
The Roll Over Protective Structure (ROPS) canopy helps protect the operator from potential hazards resulting
from equipment roll over and falling objects.
