Basic Tool Select (BTS) and Advanced Tool Select (ATS) are two levels of systems which have been designed to run various attachments (e.g. hammer, selector grab etc.). Both BTS and ATS can provide two additional flow circuits compared to the standard machine in-order to run the attachments. These are the low flow circuit (LF) and the high flow circuit (HF).
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The tools are connected mechanically (via. quick hitch) and hydraulically (pipes with taps are available at the dig-end). In order to control the attachment there are several different input configurations possible. HF can be controlled with a hydraulic pedal or electronic pedal and buttons or sliders on the left-hand joystick *1. Similarly, LF can be controlled by buttons or sliders on the right-hand joystick. The operator can then configure how to control the tool with different input curves (linear, on-off, parabolic, custom), latching functions, scaling of sliders etc, *2.
Finally, in order to prevent damaging the attachment, the system needs to be configured to meet a flow and pressure limit. For BTS the pressure limit is met by tuning a mechanical relief valve (needs to be tuned manually). For ATS it is possible to set the pressure limit with electronic relief valves (can be controlled from the display). The flow limit in case of BTS can be applied only when the flow is set-up as 1-Way. The flow limit is ensured by controlling the engine speed and limiting pump flow. In case of ATS the flow limit is ensured by controlling the spool. ATS would need to aware of the service pressure in order to meet the flow limit therefore it has additional pressure transducers for its operation.
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*1 In case of hydraulic pedal it is not possible to have buttons or sliders on the joystick due to discrepancies in input demands.
*2 The availability of different curve manipulation functions is dependent on the build configuration and attachment selected.
The ATS System option has five pressure sensors in addition to the base BTS system. These sensors measure the pressure using the High Spec Controller 5 volt reference system.
C218 - High Flow Pilot Pressure A: Measures the High Flow Pilot A Pressure.
C631 - High Flow Service Pressure B: Measures the High Flow Service B Pressure.
C217 - High Flow Service Pressure A: Measures the High Flow Service A Pressure.
C171 - Low Flow Service Pressure: Measures the Low Flow Service Pressure.
C171 - High Flow Pilot Pressure B: Measures the High Flow Pilot B Pressure.
There are no components that are unique to the BTS system.
