CASE Construction
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CASE 885B series motor graders — available locally from CASE Construction SA
— have the latest technological and design features for improved performance and
enhanced productivity.
The transmission control unit (TCU)
manages all the input of data provided
when the transmission is operating
and ensures optimum performance,
extended service life of the machine, and
improved operator comfort. “The TCU is
a pre-set unit that is programmed with
the parameters of the transmission at the
factory; it will detect speed and control
transmission gear shifts, for example.
There is no operator intervention in this,”
says Collard.
The transmission also has a diagnostic
system that detects potential problems
and displays them as error codes on
the panel or via a laptop connection.
Collard adds, “The diagnostic codes
will be generated when any problem is
detected in the transmission; these are
displayed by way of a dedicated code for
the technician to identify and act on the
problem. The codes range from simple
filter restrictions to operational problems
like overheating.”
torque and is therefore ideal for
levelling and spreading.
When lock-up is disengaged by the
operator at the push of a button, the
transmission reverts to working with the
torque converter.
Lock-up engages automatically
to match torque and engine speed
— as long as the pre-set electronic
transmission module parameters are met.
Improved traction
CASE 885B series grader axles have
been designed for improved traction on
the ground. The front axle has a welded
steel structure with high-resistance
cast iron components. The straight-
line geometry offers 580mm ground
clearance over the machine’s entire
length. The wheel lean angle is 12
degrees to the right or left, with up to 15
degrees of oscillation to be able to cope
efficiently on irregular terrains. The cast
iron tandem type rear axle has a welded
steel plate structure that enables safe
operation in difficult conditions. Tandem
oscillation is 20 degrees to each side.
Precision of movement
The hydraulic system of this series is
designed for complete precision of
movement and blade control. When
ground resistance is high and the
hydraulic system pressure needs to
The CASE de-clutch system, which is
activated when the operator applies the
brakes, improves handling speeds for tools,
including the blade, ripper, and scarifier.
This de-clutch system directs all
engine power to the hydraulic system
from the moment that the engine is
disengaged from the transmission. As a
result, loss of power during operation is
prevented and fuel economy is improved.
Another advantage of this
transmission system is the option of
operating in automatic or manual mode.
The operator is able to manually shift
gear or opt for automatic control — with
manual mode generally selected when
fine grading is done or more power is
required to do the job at hand.
www.plantonline.co.za
The de-clutch system
Enhancements to this range include the flexibility of a torque converter lock-up
system for efficient transmission, a roll-away mouldboard plough for lower fuel
consumption, and a redesigned cab, with a larger field of vision for enhanced safety
and greater operator comfort.
APRIL 2019
19