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Accu. Grade SSL © 2008 Caterpillar, Inc. All Rights Reserved Accu. Grade SSL © 2008 Caterpillar, Inc. All Rights Reserved

Agenda • • Project Overview Machine Integration Electrical System Offering Installation Display Requirements Preparing Agenda • • Project Overview Machine Integration Electrical System Offering Installation Display Requirements Preparing to Grade How Accu. Grade Compares to Other Systems © 2008 Caterpillar, Inc. All Rights Reserved

Project Overview • Project goal – Design a deeply integrated, single laser Accu. Grade Project Overview • Project goal – Design a deeply integrated, single laser Accu. Grade system for the Box Blade work tool – Available for C-Series SSL family only – System must minimize cost by utilizing existing electronics on the machine • A 4: M 1 to execute Accu. Grade code • AMICS Display for the “Graphical” User Interface • Implement joystick – Minimize impact to machine cost – Accuracy of +/- 0. 25 inch – Will be available from Accu. SSL Price List © 2008 Caterpillar, Inc. All Rights Reserved

Project Overview Box Blade Attachment © 2008 Caterpillar, Inc. All Rights Reserved A M Project Overview Box Blade Attachment © 2008 Caterpillar, Inc. All Rights Reserved A M I C S D i s p l a y

How it Works • Laser transmitter emits laser plane (level or sloped) • Laser How it Works • Laser transmitter emits laser plane (level or sloped) • Laser receiver on work tool detects laser strikes; communicates laser strike position to ECM • ECM processes position data; commands hydraulics to lift/lower blade to remain on-grade • Display provides grade information to operator Reference Elevation © 2008 Caterpillar, Inc. All Rights Reserved

Machine Integration – Joystick Usage • • • Utilize RH joystick as-is – Not Machine Integration – Joystick Usage • • • Utilize RH joystick as-is – Not adding any additional switches, etc. RH Joystick Trigger – Supports “Float” machine feature • Float is a 2 -step action - hold trigger and pushing joystick all the way forward • Just squeezing trigger currently does nothing – Supports Auto/Manual control for Accu. Grade • Accu. Grade usage only available when AMICS is in Accu. Grade mode & joystick is in neutral position • Set benchmark then press/release the trigger to enable Automatic Controls • Press/Release trigger again to disable Automatic controls Currently no method to adjust offset using joystick – No dedicated switches – Could use combination of trigger + thumb-roller • Concerns about overwhelming/confusing operator with button combinations © 2008 Caterpillar, Inc. All Rights Reserved

Machine Integration – Joystick Usage • Automatic controls temporary override – While automatic controls Machine Integration – Joystick Usage • Automatic controls temporary override – While automatic controls are active • Moving thumb-roller will override automatics and raise/lower blade as commanded by thumb -roller position • After releasing thumb-roller, automatics will resume if receiver is still in the laser plane © 2008 Caterpillar, Inc. All Rights Reserved

Machine Integration – ECM Software • Accu. Grade software integrated into A 4: M Machine Integration – ECM Software • Accu. Grade software integrated into A 4: M 1 machine software – Every machine with AMICS will be capable of having Accu. Grade enabled © 2008 Caterpillar, Inc. All Rights Reserved

Machine Integration – AMICS Display • AMICS Display – Option for all C-Series machines Machine Integration – AMICS Display • AMICS Display – Option for all C-Series machines • Available from factory in optional “Performance Packages” • Available from dealer as a kit ($715 C/L) – Required for Accu. Grade – Provides operator additional machine features • Selectable Work Tool Control (fine, medium, coarse) • Selectable Hystat Control (fine, medium, coarse) • Creep Speed Control (Set 1 -10) • Job Clock • Digital Tachometer • Temperatures • System Voltage • Service Mode (events, diagnostics, troubleshooting) – Added an “Accu. Grade Mode” to the software © 2008 Caterpillar, Inc. All Rights Reserved

Electrical System • Primary change is to provide CAN & power for LR 410 Electrical System • Primary change is to provide CAN & power for LR 410 at a bulkhead connector – Utilize ECM’s CAN B for Accu. Grade components • Initially laser receiver only • Additional sensors in future • Standard machine harness updated for Accu. Grade – Every machine built will be “Grade Control Ready” – Starting in 1 Q 2010 • Machine update harness created for machines built prior to Accu. Grade – Installed by dealer • Accu. Grade Harness runs down lift arms to bulk-head – Installed by dealer © 2008 Caterpillar, Inc. All Rights Reserved

Electrical System • Routing of Accu. Grade harness © 2008 Caterpillar, Inc. All Rights Electrical System • Routing of Accu. Grade harness © 2008 Caterpillar, Inc. All Rights Reserved

System Offering • Top-Level Kit – Installation Kit – Electronics Kit • Installation kit System Offering • Top-Level Kit – Installation Kit – Electronics Kit • Installation kit includes – Accu. Grade Harness, mounting plate & nuts/bolts/ties • Electronics Kit includes – Laser Receiver, Coil Cable, Carrying Case • Software Enabled Attachment (SEA) with Factory Password required to activate Accu. Grade • Customer may have to purchase AMICS kit separately if machine doesn’t already have it • Machines built prior to 2010 will require Machine Update Harness (available on machine price page) © 2008 Caterpillar, Inc. All Rights Reserved

Installation – Existing Machines • Installation of an AMICS display & creep switch (if Installation – Existing Machines • Installation of an AMICS display & creep switch (if not already on machine) – Configure ECM to recognize display is installed – Update software to latest with Accu. Grade support • Flash machine's A 4 M 1 ECM with new machine software. • Configure Accu. Grade SEA so that Accu. Grade is installed. • Install the Machine Update Harness. – This harness will have to be ordered from the machine price page – Machines built 1 Q 2010 will have this functionality integrated into machine platform harness • Every machine will be considered "Grade Control Ready". • Install the Accu. Grade “Installation Kit” • Attach tool & perform Valve Calibration © 2008 Caterpillar, Inc. All Rights Reserved

Installation – GCR Machines (1 Q 2010) • Installation of an AMICS display & Installation – GCR Machines (1 Q 2010) • Installation of an AMICS display & creep switch (if not already on machine) – Configure ECM to recognize display is installed – Update software to latest with Accu. Grade support • Flash machine's A 4 M 1 ECM with new machine software. • Configure Accu. Grade SEA so that Accu. Grade is installed. • Install the Accu. Grade “Installation Kit” • Attach tool & perform Valve Calibration © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – User Interface • Accu. Grade Mode added to AMICS Application • Display Requirements – User Interface • Accu. Grade Mode added to AMICS Application • 7 -Digit, 7 -Segment LCD display © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – User Interface • Enter Accu. Grade – Press and hold “Mode” Display Requirements – User Interface • Enter Accu. Grade – Press and hold “Mode” and “Down” buttons for 2 seconds Regular Machine Display © 2008 Caterpillar, Inc. All Rights Reserved Accu. Grade Mode

Display Requirements – Run-Time Screen • Run-time screen description – Elevation Data (1) • Display Requirements – Run-Time Screen • Run-time screen description – Elevation Data (1) • Value to 2 decimal places when using English (decimal-feet) units • Value to 3 decimal places (mm) when using Metric units • Offset shown when in “Reference Mode” • Actual error from Desired Grade shown while in “Cut/Fill”mode – Automatics Indicator (2) • Flashes repeatedly if automatics not allowed • “A” shown when in Automatic Control Mode • Duplicate Grade Indicator if in Manual Control Mode – On-Grade Indicator (3) © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Run-Time Screen • • Manual Grade Indicators (Reference & Cut/Fill Modes) Display Requirements – Run-Time Screen • • Manual Grade Indicators (Reference & Cut/Fill Modes) Course Above Grade (Flashing) Course Below Grade (Flashing) Medium Above Grade Medium Below Grade © 2008 Caterpillar, Inc. All Rights Reserved Fine Above Grade On Grade Fine Below Grade No Laser Strikes

Display Requirements – Run-Time Screen • • Automatic Grade Indicators (Reference & Cut/Fill Modes) Display Requirements – Run-Time Screen • • Automatic Grade Indicators (Reference & Cut/Fill Modes) Course Above Grade (Flashing) Course Below Grade (Flashing) Medium Above Grade Medium Below Grade © 2008 Caterpillar, Inc. All Rights Reserved Fine Above Grade On Grade Fine Below Grade No Laser Strikes

Display Requirements – Grade Indicator Ranges Consider benchmark at middle of LR Coarse-Below (-60 Display Requirements – Grade Indicator Ranges Consider benchmark at middle of LR Coarse-Below (-60 mm to end of LR) Medium-Below (-30 mm -60 mm) Fine-Below (-3 mm -30 mm) On-Grade (+/- 3 mm) Fine-Above (3 mm 30 mm) Medium-Above (30 mm 60 mm) Coarse-Above (60 mm to end of LR) © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Grade Indicator Ranges Consider benchmark off-center of LR Coarse-Below (-60 mm Display Requirements – Grade Indicator Ranges Consider benchmark off-center of LR Coarse-Below (-60 mm to end of LR) Bench Medium-Below (-30 mm -60 mm) Fine-Below (-3 mm -30 mm) On-Grade (+/- 3 mm) Fine-Above (3 mm 30 mm) Medium-Above (30 mm 60 mm) Coarse-Above (60 mm to end of LR) © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Run-Time Screen • Benchmark (Reference & Cut/Fill Modes) – Press and Display Requirements – Run-Time Screen • Benchmark (Reference & Cut/Fill Modes) – Press and hold “Up” and “Down” buttons for 2 seconds – Value shown flashes once & resets to zero Before Bench © 2008 Caterpillar, Inc. All Rights Reserved After Bench

Setting the Benchmark • Establishes a known elevation in the system – Could be Setting the Benchmark • Establishes a known elevation in the system – Could be desired final elevation OR a known elevation from which to offset Reference Elevation © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Run-Time Screen • Apply an offset (Reference Mode Only) – Use Display Requirements – Run-Time Screen • Apply an offset (Reference Mode Only) – Use “Up” or “Down” buttons to apply an offset Increment © 2008 Caterpillar, Inc. All Rights Reserved Decrement

Positive Offset – Raise Blade Applying an Offset New target elevation Reference Elevation Negative Positive Offset – Raise Blade Applying an Offset New target elevation Reference Elevation Negative Offset – Lower blade Reference Elevation New target elevation © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Run-Time Screen • Viewing Elevation Error (Cut-Fill Mode Only) – Real-Time Display Requirements – Run-Time Screen • Viewing Elevation Error (Cut-Fill Mode Only) – Real-Time display of error between blade elevation when benchmark set and current blade elevation – Error also includes any offset applied while in Reference Mode • NOTE: Can’t set an offset while in Cut-Fill Mode Elevation Error Laser Strikes at Benchmark Current Laser Strike Position © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – User Interface • Automatic Controls Indicator (Reference and Cut/Fill Modes) – Display Requirements – User Interface • Automatic Controls Indicator (Reference and Cut/Fill Modes) – Toggle trigger on implement joystick while joystick is in neutral position • Safety interlocks must be met to enable automatics • Violating interlocks while automatic controls are active will disengage automatic controls • The A will flash when the system is in a inactive auto state Manual Auto Trigger © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Valve Speed • • • Operator chooses responsiveness of hydraulic system Display Requirements – Valve Speed • • • Operator chooses responsiveness of hydraulic system Options range from 10 to 200% in 10% increments Pressing ‘Up’ increments the speed (faster response) Pressing ‘Down’ decrements the speed (slower response) Pressing ‘Up’ at 200% rolls-over to 0% and vice-versa Default setting is 100% Run-Time Screen Valve Speed Screen © 2008 Caterpillar, Inc. All Rights Reserved Current Valve Speed

Display Requirements – Operating Mode • Operator chooses Accu. Grade mode of operation • Display Requirements – Operating Mode • Operator chooses Accu. Grade mode of operation • Options – Reference: Allows operator to apply an offset to the benchmark elevation – Cut-Fill: “Grade Checker” mode; Shows error between blade elevation and desired elevation • Can’t apply offsets in this mode • Default setting is Reference Valve Speed Screen Operation Mode Screen Reference Mode Screen © 2008 Caterpillar, Inc. All Rights Reserved Cut-Fill Mode Screen

Display Requirements – Valve Calibration • Allows operator to calibrate Accu. Grade – Accu. Display Requirements – Valve Calibration • Allows operator to calibrate Accu. Grade – Accu. Grade learns responsiveness of hydraulics • First step is to define the lower limit for the tool’s range of motion – Determined by where the laser is striking the receiver – Initiate this step by pressing ‘Down’ button while on initial screen with the laser striking the receiver in the correct range • Second step is to define the upper limit for the tool’s range of motion – Determined by where the laser is striking the receiver – Initiate this step by pressing “Down” button while on Lower Limit screen • Final step is to start the automatic calibration Operation Mode Screen Valid Lower Limit Range Valid Upper Limit Range © 2008 Caterpillar, Inc. All Rights Reserved Valve Calibration Screen

Display Requirements – Valve Calibration • First, define lower limit for the tool’s range Display Requirements – Valve Calibration • First, define lower limit for the tool’s range of motion • The grade indicator will give guidance for how far the laser receiver is above or below required range (course, medium, fine and on grade) • Pressing ‘Up’ will return to Valve Calibration screen • Pressing ‘Down’ will continue to Upper Limit screen • Position blade about an inch above the ground • Blade shouldn’t touch the ground during the calibration • Position receiver on the mast until display shows “Stop” Lower Limit Down Lower Limit Up Lower tool Raise tool © 2008 Caterpillar, Inc. All Rights Reserved Lower Limit Stop Tool is in correct position Press “Down” to continue

Display Requirements – Valve Calibration • Second, define upper limit for the tool’s range Display Requirements – Valve Calibration • Second, define upper limit for the tool’s range of motion • The grade indicator will give guidance for how far the laser receiver is above or below required range (course, medium, fine and on grade) • Pressing ‘Up’ will return to Upper Limit screen • Pressing ‘Down’ will continue to Automatic Calibration screen • Raise the box blade cutting edge until display shows “Stop” Upper Limit Down Upper Limit Up Upper Limit Stop Lower tool Raise tool Tool is in correct position Press “Down” to continue © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Valve Calibration • Initiate the Automated Calibration Pulling the right trigger Display Requirements – Valve Calibration • Initiate the Automated Calibration Pulling the right trigger will start the automated calibration. The operator will initially see: The display will show the progress of the calibration. Calibration Manual Trigger © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Valve Calibration • Completion of Automatic Calibration – If an error Display Requirements – Valve Calibration • Completion of Automatic Calibration – If an error occurs, previous calibration retained – Error codes listed in OMM When the calibration is successfully completed the screen will display: If the calibration is aborted or not successful the screen will display: Calibration Done Calibration Error • When the calibration is done (successfully or not), pressing the ‘Mode’ button returns to the Valve Calibration Screen © 2008 Caterpillar, Inc. All Rights Reserved

Display Requirements – Return to “Run-Time” Screen • From the Valve Calibration menu, pressing Display Requirements – Return to “Run-Time” Screen • From the Valve Calibration menu, pressing the Mode button returns the display to the “Run-Time” screen. Valve Calibration Screen © 2008 Caterpillar, Inc. All Rights Reserved Run-Time Screen

Display Requirements – User Interface • To Exit Accu. Grade – Press and hold Display Requirements – User Interface • To Exit Accu. Grade – Press and hold “UP” button for 2 seconds – Returns to previous machine screen Accu. Grade Mode © 2008 Caterpillar, Inc. All Rights Reserved Machine Mode

Diagnostics • • • Traditional Accu. Grade fault codes shown on Display – Look-up Diagnostics • • • Traditional Accu. Grade fault codes shown on Display – Look-up table available in OMM Traditional CAT fault IDs logged in software & shown in ET LR 410 Loss of Communications – Only available when display is in “Accu. Grade” mode – “Active-only” if communication lost while machine is stationary • i. e. In case someone unplugs LR to put away at end of day, etc. • Minimize number of false logged diagnostics – “Active & Logged” if communication lost while machine is moving • • Laser Interference – Active only Accu. Grade System Calibration Required – Active only – Only available when display is in Accu. Grade Mode © 2008 Caterpillar, Inc. All Rights Reserved

Preparing to Grade • • • Setup Laser Transmitter & tripod Manually position the Preparing to Grade • • • Setup Laser Transmitter & tripod Manually position the blade at a known elevation Attach laser receiver to mast, plug into machine using coil-cable and position in the laser plane – LR doesn’t have to be centered in the plane, but can’t be too close to the top/bottom Benchmark the known (reference) elevation – If reference elevation is the desired grade, then operator is ready to grade – If reference elevation is offset from desired grade, then operator can enter offset into display before starting to grade. • IE – Reference Elevation is desired elevation of concrete slab that is 3” thick • Bench at slab finished elevation & enter -3” offset Toggle trigger on implement joystick to enable automatic controls – Must be on Main Accu. Grade screen © 2008 Caterpillar, Inc. All Rights Reserved

LR 410 LED Blink Pattern • From LR 410 User Manual © 2008 Caterpillar, LR 410 LED Blink Pattern • From LR 410 User Manual © 2008 Caterpillar, Inc. All Rights Reserved

How Accu. Grade compares to 3 rd Party Systems • • • Deep Integration How Accu. Grade compares to 3 rd Party Systems • • • Deep Integration – AG – Uses machine display, joystick & EH Hydraulics – Others – Uses blade-mounted display and hydraulic valves – Advantage – Ability to have features such as elevation offset, valve speed adjustments & other modes of operation; finger-tip control of the system; utilizes safety features of the machine Faster Set-up – AG – Plug in LR & ready to go – Others – Must attach control box, connect 4 cables before ready to grade; potential to get connections wrong – Advantage – Much faster set-up/tear-down Uses Machine’s EH to control elevation – AG – Only drives hydraulics when corrections are needed – Others – Require Continuous Flow to be enabled all the time so control box can meter the fluid flow via the tool-mounted valve – Advantage – Reduced fuel consumption, noise, frustration to the operator © 2008 Caterpillar, Inc. All Rights Reserved

How Accu. Grade compares to 3 rd Party Systems • • Easier to Benchmark How Accu. Grade compares to 3 rd Party Systems • • Easier to Benchmark – AG – LR can be positioned nearly anywhere in the plane & benchmark can be established – Others – Benchmark is set by centering LR in the laser plane – Advantage – Less frustration trying to center LR in the laser plane (can’t be too close to top/bottom, though); set it & go! Configure Elevation Offset – AG – Elevation offset can be set using the display – Others – Offsets are done by precisely relocating the laser receiver on the mast – Advantage – Faster & easier to set offsets © 2008 Caterpillar, Inc. All Rights Reserved

Questions? • • Options for Light Bar & Audible Alarm? – Light Bar not Questions? • • Options for Light Bar & Audible Alarm? – Light Bar not an option because current LB uses serial communication bus that the ECM doesn’t have. – No audible alarm available on machine for Accu. Grade use. Only alarm currently in machine is for machine health. Can Inc/Dec amount be configured by the operator? – No – maybe a nice upgrade for Gen 2 unless we can find a way to use implement joystick to inc/dec offset remotely. Can valve calibration work with other box blades? – Other box blades seen have 6” cylinder stroke just like the Level Best box blade. This is not expected to be a problem, but hasn’t been tried since we are endorsing the Level Best work tool. Why not dual-laser, sonic? – VOC captured at start of program did not have these as highly important features for the system. © 2008 Caterpillar, Inc. All Rights Reserved