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Design
In the transport position the Model 160 is 102 inches (40.16 c.m.) wide.
Standard equipment includes a 165 h.p. John Deere diesel engine, 50 gal.
fuel tank, 25 gal. hydraulic tank and electric operator controls for the
hydraulic functions. The machine weighs approximately 20,000 lbs. The
replaceable tungsten carbide cutter bits are extremely durable and give
long life in this application.
Safety Features
The cutter head hydraulic circuit has a built-in pressure relief valve
that will stall the cutter head at a predetermined pressure. This aids
in protecting the cutter head in case of contact with underground obstructions.
An "Emergency Stop" button is located in the operator's station
to serve as a kill switch for the engine and cutter drive.
Operator Controls
The operator's job of keeping the cutterhead level is made easy through
the use of a Sunstrand automatic level controller similar to those used
on asphalt pavers. This controller can be engaged and disengaged from the
operators station via a two-position switch. A 6-way joystick control
provides the operator with control of the boom and carriage cylinders,
thus providing boom raise and lower, right-left movement of the boom
carriage, as well as manual control of the head tilt function. Moving the
cutter head right or left using the carriage control does not change the
cutting depth, as in other machines.
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