Graco 334135B important safety instructions Setup, Piston Position Calibration

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Setup

Setup

Before setting up the machine, the user needs to be familiar with the LCM screens. Refer to Appendix A - LCM Icon Overview and Appendix B - LCM Run Screen Overview, starting on page 60.

Perform Startup, page 33, to access the LCM screens.

Piston Position Calibration

FIG. 4: Position Calibration Screen

The position sensor assigns a numeric value to the loca- tion of the piston. Higher numbers indicate the piston is extended and lower numbers indicate the piston is retracted.

The Piston Position Calibration procedure teaches the machine the location of the most extended piston posi-

tion ( ), the most retracted piston position ( ), and the position where the piston engages the pump

cylinder ( ).

Perform the Piston Position Calibration procedure when first setting up the machine. Also perform this pro- cedure if the linear position sensor, piston, or any elec- tronic component has been replaced. Press the Setup

Screen button ( ) to enter the setup screens.

Prepare Machine for Calibration

1.Ensure that both piston shafts are screwed all the way into the drive block.

2.Navigate to the Position Calibration Screen.

3.Place a waste container under the dispense valve to capture any dispensed material.

4.Ensure the system air pressure is on by opening the vented ball valve and the system air pressure regu- lator shows air pressure in the system.

Retracted Piston Position

5.With air pressure applied to the machine, high light

the Retract Piston button ( ).

6.Press the Dispense Request button ( ). The pis- ton will fully retract and a number from 1250 to 1600 will be displayed next to the Retract Piston button. If a number outside of this range is displayed, ensure the air cylinder air line connections are not switched and that the linear position sensor is properly installed.

7.Press the Enter button ( ) to accept the value or

press the Abort/Cancel button ( ) to keep the previous value.

Extended Piston Position

8.With air pressure applied to the machine, high light

the Extend Piston button ( ).

9.Press the Dispense Request button ( ). The pis- ton will fully extend and a number 3600-3900 should be displayed. If a number outside of this range is displayed, ensure the air cylinder air line connec- tions are not switched and that the linear position sensor is installed correctly.

NOTE: If the piston does not extend after pressing the

Dispense Request button ( ) the air pressure may

need to be increased. Use system air pressure regulator to increase the air pressure in increments of 10 psi until the piston activates. Material will be dispensed when adequate pressure is achieved.

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334135B

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Contents Important Safety Instructions PR70eContents Models Related ManualsElectric Shock Hazard Fire and Explosion Hazard IG Machine Key Component IdentificationMachine Local Control Module LCM AB System Shut-Down KeyRun Screen Screen Overview and Appendix C LCM SetupLCM Screen Navigation Component Identification 334135B Standard Dispense Valves, 255179 Recommended PartsDispense Valve Gun Mounted MD2 Valves, LC0120 and LC0122Lever Actuated MD2 Valves, LC0121 and LC0123 Part Description QuantityMixers Shroud Reference Number and Description1301 1302 1303 Mixer Package DescriptionApplicator Mounting Part Description Mounting, valve, HMI Mounting, HMIHigh Temperature Grease Footswitch Air Filter and Ball Valve, 24R707Tanks Quantity Part Description 24W415 24W416 24W417 Hose Packages Unheated, Non-Recirculating HoseRecommended Parts 334135B Piston Package Nylon Piston, Stainless Steel Metering Tube AssembliesUhmw Piston, Stainless Steel Metering Tube Assemblies UhmwPump Tube Combination Information Shot Size cc Air Motor In. Air MotorGrounding InstallationMachine Installation General Grounding GuidelinesInstall the Chemical Hoses Install the Dispense Valve and Support Arm, if neededGround System Electrical RequirementsSetup Piston Position CalibrationEngaged Piston Position Perform Pressure Relief Procedure onNavigate to the Shot Mode Screen or Operator Mode Screen Manually Move the Piston Drive BlockPrime the Dispense Head Prime Dispense HeadPrepare the Machine Phasing AdjustmentAdjust Dispense Quantity Navigate to the Phasing Shot Calibration ScreenAdjust Phasing Adjust Dispense Valve Snuff Back Adjust Open Dispense Valve ODV Timing Operator Mode ScreenOperation Pressure Relief ProcedureNavigate to the Maintenance Mode Run Screen StartupRelieve pressure. See Pressure Relief Procedure, ShutdownDisassemble and Clean the Dispense Head MaintenanceClean the Pump Shafts ScheduleInstall Upgrade Token Remove Access PanelTroubleshooting Problem Cause SolutionProblem Cause Solution Code Name Type Causes Fixes Condition LCM Error CodesTrigger Entries in Position CalibraRepair HydraCheck Kit Installation, 24W336Prepare Machine for Kit Installation Adjust Shock Resistance Install Adjustment Screw/CapAdjust the Adjustment Screw/Cap Air Cylinder Rebuild Instructions Disassemble the Air CylinderClean and Inspect the Parts Re-Assemble the Air CylinderRear Pump Rebuild Instructions Assemble the Rear Pump Assembly Prepare for OperationDisassemble Cylinder Piston/Cylinder Replacement Kit InstallationInstall Cylinder Check Valve Rebuild Kit Installation Parts Fixed Ratio Base24V935, Pump 24V936, Pump Part Description Assembly Pump Sub-Assembly, 24S053 Check Valve, Assembly LC0093 CollarFixed Ratio Drive Block Assembly, LC0107 206 201 204 205 202 203Air Cylinder, 24V933 24V933, Motor 24V934, Motor Part Description AirFixed Ratio Frame Sub-Assembly, LC0290 Uhmw Piston, Ceramic Metering Tube Assemblies Ring, support Carbide Package Pump Piston Washer Screw BallSchematics Electrical SchematicsElectrical Schematic DB25 Pin Number Pin Function Description Pneumatic SchematicDB25 Pin Function Schematics 334135B Appendix a LCM Icon Overview Adjust Phasing Shot AdjustPosition Adjust Amount AdjustShot Mode Screen Splash Screen Operator Mode ScreenDisable Mode Screen Mode Selection Programming ScreenError Code Acknowledgement Screen Maintenance Mode Run ScreenShot Amount or Stroke % Adjust Screen Run Screen while DispensingPhasing Shot Calibration Screen Appendix C LCM Setup Screen OverviewSetup Screen Password Set/Clear Screen LCF Piston Size mm2 Nylon and Uhmw Piston Replacement KitsKits LCE Piston Size mm2Recommended Spare Parts MD2 ValveDimensions Dimensions Technical Data Graco Standard Warranty Graco Information