Haier 3150 SF, 3150 SB Service, Repairing the Air Valve, Tool Required, Disassembly, 310622L

Page 16

Service

Service

Service

Repairing the Air Valve

Tool Required

•Torque wrench

•Torx (T20) screwdriver or 7 mm (9/32 in.) socket wrench

•Needle-nose pliers

•O-ring pick

•Lithium base grease

Air Valve Repair Kit 255122 is available. Refer to Parts on page 31. Parts included in the kit are marked with ◆ symbol. Use all the parts in the kit for the best results.

Disassembly

1.Relieve the pressure.

2.With a Torx (T20) screwdriver or 7 mm (9/32 in.) socket wrench, remove the six screws (103), air valve cover (102), and gasket (104). See FIG. 6.

103

102

104◆

TI4682b

FIG. 6

3.Move the valve carriage (105) to the center position and pull it out of the cavity. Using a needle-nose pli- ers, pull the pilot block (116) straight up and out of the cavity. See FIG. 7.

116◆

105◆

TI4616b

FIG. 7

4.Pull the two actuator pistons (111). Remove the u-cups (110) from the pistons. Pull the pilot pins (114). Remove the o-rings (115) from the pilot pins. See FIG. 8.

111 110◆

TI4617b

114 115◆

FIG. 8

16

310622L

Image 16

Contents Model SA3AAA Shown Instructions/Parts ListHigh Sanitation Pumps 310622LContents ContentsDimensional Drawing Technical DataWarnings WarningsFIRE AND EXPLOSION HAZARD PRESSURIZED EQUIPMENT HAZARDBURN HAZARD PERSONAL PROTECTIVE EQUIPMENTInstallation InstallationGeneral Information Leak Detection SystemGround Wire Connection MountingsAir Line Fluid Suction LineFIG. 3 Typical Floor-Mount Installation Typical InstallationFluid Outlet Line Air Exhaust Ventilation Changing the Orientation of the Fluid Inlet and Outlet PortsFIG. 4 Orientation of Fluid Ports FIG. 5 Venting Exhaust Air E Master air valve for accessories F Air line filter P MufflerA Air supply line B Bleed-type master air valve required for pump C Air regulator D Air line quick disconnectPressure Relief Procedure Starting and Adjusting the PumpOperation Sanitizing the Pump Before First UseMaintenance Routine Cleaning of Product Contact Section of PumpMaintenance LubricationPreventive Maintenance Schedule Maintenance PersonOperator TaskMaintenance Troubleshooting TroubleshootingPROBLEM Follow Pressure Relief Proceerly/cleanly due to imbalance Leak in inlet or outlet sanitary fitLoose sanitary clamp Tighten clampService Repairing the Air ValveService DisassemblyReassembly 8. Install the valve carriage 105 so its tabs slip into the grooves on the narrow end of the actuator pis- tons 111. See FIG 3A Ball Check Assembly Check Valve RepairService For Sanitary Ball Check pumps remove ball gasket Sanitary Ball Check AssemblyFlapper Check Assembly TI8769aDiaphragm Repair Tools RequiredSanitary Pump 3A Pumpdiaphragm plate side high strength thread lock shaft sideBearing and Air Gasket Removal Reassembly Pump Matrix 3150 Stainless Steel Sanitary Pumps1590 Stainless Steel Sanitary Pumps Pump MatrixSanitary Ball Check Valve Assembly Flapper Check Valve AssemblySanitary Diaphragm Assembly Parts DrawingParts List Pump Configuration Parts ListInlet and Outlet Parts List Parts ListDiaphragm Material Parts List Indicates replacement parts † Indicates a recommended spare partPart 3150Check Ball Material Parts List Indicates replacement parts † Indicates a recommended spare partcenter housing bore Apply medium strength adhesive to outsideApply a medium strength thread locker to screw threads and torque to 130-150 in-lbsAir Section Parts Leak Detector and Pump Stand Parts ListFluid Section Parts Accessories Accessories3150 Conversion Kits 15D990 Leak DetectorDimensional Drawing ModelModel TI8778aSantoprene is a registered trademark of the Monsanto Co Technical DataLoctite is a registered trademark of the Loctite Corporation Performance Chart 1590 3A Performance ChartTest Conditions Pump tested in water with inlet submerged To find Fluid Outlet PressureSanitary Ball Check Valve Pumps 3A Ball Check Valve PumpsFlapper Check Valve Pumps Technical Data 3150 3A Performance Chart Model Graco Standard Pump Warranty Extended Product WarrantyGraco Warranties Graco Information