the speed of the vehicle is infinitely variable in two
General Machine Description
ranges. Low or working range 0-2 1/2 mph; high or
traveling range 0-15 1/2 mph.
The Model and Serial Number plate is affixed to the
firewall of the machine and facing the operator. See
The planetary rear axle is equipped with brakes which
are operated individually by two master cylinders. In
addition to the hydraulic brakes on the axle, the
hydrostatic system has inherent dynamic braking which
will probably be used more than the brakes on the axle.
The work of pulverization is accomplished by the rotor
which is driven by the engine through a clutch, two
speed transmission and jack axle differential which
evenly divides the power to the rotor. A shear coupling
in the driveline provides shock protection for the drive
Figure 1-2. Number Plate
The standard tines, 103 1/2 bevel edge type, are
arranged on the rotor to form a spiral pattern, and to
The Hydrostatic Self-Propelled Stabilizer is a machine
overlap by 3/,6" to insure the cutting of a flat bottom.
designed specifically for use in pulverizing the subgrade
prior to the addition of a suitable binder, or merely
The spiral pattern allows four tines in any longitudinal
blending in the case of purely mechanical stabilization.
row to cut simultaneously.
Stabilization means the mechanical mixing of the coarse
The maximum cutting width of the rotor is 6'-6 1/4".
and fine aggregate into a homogeneous mixture. This
mixture is stable because the voids that normally exist
Maximum cutting depth 0 10 1/2".
where coarse materials are lying adjacent to one
another separated from the fines, are eliminated.
The mixing chamber or hood assembly is composed of
the following components: hood, hydraulically operated
The machine's performance
tailboard, hood lift bar assembly, tailboard wear plate,
functions such as:
skis and hood adjusting bolts. The hood confines the
material while mixing to control pulverization and
Mixing of the bituminous wearing surface.
Raising the tailboard permits aeration of mixture to
Stabilization of asphalt roads and shoulders.
reduce moisture content. Hood adjusting bolts are
provided to obtain the right angle of skis for floation of
Stabilizing airport runways, taxiways, earth dams
hood assembly on the materials being mixed.
The wear plate attached to the tailboard provides strike-
off of mixed material for proper contour and
introduction, aeration of material and land clearing.
compaction. A lifting bar is attached to the hood for
raising with the crane.
Use in all types of road stabilization using bitumen,
cement, lime, chlorides and other stabilizing
The crane is used to lift the rotor and/or hood assembly
from material for turn-arounds or maneuvers during
mixing passes, parking, loading and unloading the
The mixing of additives at the most ideal location
within the mixing chamber.
The crane is pivoted at the bottom and actuated by a
The machine consists of a series of major components
double acting hydraulic cylinder which receives oil under
each of which is dependent upon the others to perform
pressure from the hydraulic pump through a control
the final function for which the machine was designed.
valve at the operator's location. The crane lifts the hood
and rotor by means of the rotor and hood lifting bars.
The engine is probably the most important component,
since it is the source of all power for the machine. A 4
cylinder diesel engine is used as standard power.
The traction drive is accomplished hydrostatically. The
A. Hydraulic pump for power steering The pump is a
engine drives a variable displacement hydraulic pump
vane type, and is mounted on the left front side of the
off the front of the engine crankshaft, which in turn
engine and is belt driven. This pump supplies oil to the
drives a fixed displacement hydraulic motor. The
power steering ram only.
hydraulic motor is mounted on a two speed transmission
or nose box which is part of the planetary rear axle, thus