Graco PR70 important safety instructions Hose Assemblies, To install a new Piston Plug Assembly

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Pistons

Figure 51 PR70 Piston Plug Assembly

Key:

Ref	P/N	Description	QTY
1	15K815	Plug	2/Machine
2	111457	Oring	2/Machine

To install a new Piston Plug Assembly:

1.Drain the machine pistons by instigating several shots with either the tank ball valves closed (if installed), or by activating enough shots to empty the tanks.

Hose Assemblies

Figure 52 Piston to DV Hose Assemblies

2.To prevent machine movement, press (red).

3.Remove the existing Piston plug (1) from the pump end cap (item 8 of figure 46) with a wrench. Remove the existing Oring (2).

4.Lubricate the new Oring with a high temperature grease, Graco P/N 115982 or equivalent. Place the lubricated Oring into the cap location of the end cap.

5.Re-install the piston plug (1) back into the end cap.

6.Open the tank ball valves (if installed) or put more material into the tanks.

7.Instigate several shot to fill the pump with new material.

8.Re-calibrate the machine, due to the procedure performed.

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Contents PR70 Contents Mixer and Shroud Options PR70 AccessoriesRelated Manuals Supplied ManualsPR70 Feed System DescriptionElectric Shock Hazard Equipment Misuse Hazard Locate and Install the PR70 InstallationMachine Setup General InformationKey Component IdentificationPR70 Top View with Shield, Tanks, DV and HMI Removed HMI Control and IndicatorsRun Screen Operation Setup Screens Machine Disable Mode redEntering the Setup Screens Setup Screens with Passwords EnabledPR70 Screen Navigation Diagram Piston Position Calibration C1 Machine PrimingMachine Calibration Phasing C2 Open Dispense Valve ODV Setting C3Open Dispense Valve ODV Screen C3 Key Machine Calibration Shots C4Ratio Checks Shot Size Definition M2Purge Timer / Alarm Settings M2 Miscellaneous Machine SetupsManual Control Options M1 Manual DV ControlM2 after Purge Shot Size Prompt Cycle Counter and Silent Mode Control M3Tank Level Sensing and Velocity Change Options C6 Date and Time Settings M4Setting/Clearing an Administrative Password Password Setup / Clearing C5To clear the password, enter Setting/Clearing a Maintenance only PasswordResetting Passwords HMI Hibernate Mode Miscellaneous Machine FeaturesHMI Demo Mode Operation Limitations of Demo Mode SimulationError Codes Pressure Relief ProcedureStandby/Shutdown Procedure Error Code Table E50 Error Code TableE29 Tables 3 PR70 Screen Icon Tables Key Key Description ScreenPR70 HMI Icon Table Tables 4 PR70 Screen Icon Tables Run Token MaintenanceSoftware Upgrades, Run Token Problem Cause Solution TroubleshootingMajor Mechanical Assemblies, and Attachments RepairPR70 Base Frame Assembly LC0109 Key Base Frame AssemblyAir Cylinder Assemblies, and Rebuild Kits PR70 Air Cylinder System and SchematicAir Cylinder Assemblies Pump Assembly Pump Assemblies and Rebuild Kits Drive Block AssemblyPR70 Check Valve Rebuild Kit LC0093 Key To install a new Check Valve Rebuild KitPR70 Rear Pump Rebuild Kit LC0094 Key To install a new Rear Pump Rebuild KitPiston Cylinders or Metering Tubes PR70 Nylon and Uhmwpe Piston Replacement Kits KeyNylon Pistons see Figure To install a new Piston or Piston/Cylinder Replacement KitAvailable PR70 Piston and Cylinder Metering Tubes Kits Key Hose Assemblies To install a new Piston Plug AssemblyHeated Piston to DV Hose Assemblies To Replace the Fuses Miscellaneous Mechanical AssembliesPR70 Control Bracket Assembly LC0108 Key PR70 Hydracheck Components PR70 Wiring Interconnect Illustration Wiring DiagramsWiring Diagram, PR70 Category Data Technical DataPR70 Dimensions ON-Board PE Tank version Illustrated DimensionsGraco Information Graco Ohio Standard Warranty