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Both motors are protected with clutches. This means that if the unit is rotated by hand or prevented
from moving by an obstruction, the motors will not be damaged. It is advisable, however, to minimise
any manual movement of the unit and to keep the instrument away from potential obstructions so the
motors may turn freely. Nevertheless, the possibility of finger or clothing entrapment exists. Users
should not obstruct the operation of the motors or allow clothing to come into contact with the device.
4.2 Control Display Unit (CDU)
The CDU allows you to control the Quarryman Pro: to input data and commands and to view the operation and
status of the unit. The CDU is integrated into the yoke. It incorporates a keypad and screen.
NOTE:
The memory in the CDU is protected by a small coin battery, which in normal use should last 10 years before
requiring replacement. The battery ensures that the time and date are retained. If this battery needs replacing, this
must be carried out by an engineer at a Carlson-approved service centre.
The 3.5 inch screen is sun-readable, and has a 320 × 240 resolution display.
The keypad has 17 buttons, some of which have a dual use or can be used in conjunction with other buttons in a
sequence of button presses.
All multi-button combinations result in feedback (e.g. a dialog box or change of screen) to confirm the appropriate
action has been taken, so the buttons should be pressed until the feedback is registered.
4.2.1 Primary button functions
Speed up / speed down
Fire
Function
Scroll
Figure 3 Control Display Unit (CDU)
