Graco Inc 308639L important safety instructions Reassembly

Page 13

Service

Reassembly

For steps 1 to 3, see Fig. 5.

1.If you removed the bearings (8 and 17), install new ones and reassemble the fluid section as explained on page 18.

2.Grease and install the valve plate seal (12) in the groove at the bottom of the valve cavity.

3.Install the valve plate (11) in the cavity with the counter-bore facing up. Insert the screws (3) that hold the valve plate. Using a 7-mm or 9/32-in. socket wrench or TorxR T20 screwdriver, torque the screws to 28 to 50 in-lb (3.2 to 5.6 NSm).

For steps 4 to 11, see Fig. 4.

4.Grease the o-rings (19), and install them in the housing (2). Grease the push pins, and insert them into the bearings (17) narrow end first.

5.Install a u-cup seal (9) on each actuator piston (7), so the lips of the packings face the narrow end of the piston.

6.Grease the u-cup seals (9). Insert the actuator pistons in the bearings (8) wide end first. Leave the narrow end of each piston exposed in the valve cavity.

7.Grease the lower face of the pilot block (16), and install so its tabs snap into the grooves on the ends of the pilot pins (16).

8.Grease the lower face of the main valve (6).

9.Install the main valve (6) so its tabs slip into the grooves on the narrow ends of the actuator pistons (7).

10.Slide the pilot block (16) and the main valve (6) to one side of the valve cavity. See Fig. 4.

11.Align the valve cover o-ring (20) and cover (5) with the holes in the center housing (2). Insert the screws (3). Using a TorxR T20 screwdriver or

7 mm or 9/32-in. socket wrench, torque the screws to 28 to 50 in-lb (3.2 to 5.6 NSm).

23

11

1 Grease.

1 12

2 Torque to 28 to 50 in-lb (3.2 to 5.6 NSm).

Fig. 5

06324

 

 

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Contents Contents Instructions Parts List308639 Equipment Misuse HazardHazardous Fluids General Information InstallationTightening Screws Before First Use Grounding Hazardous FluidsKEY FLOOR-MOUNT Typical InstallationAir Line MountingsFluid Lines Fluid Outlet LineFluid Pressure Relief Valve Changing Manifold OrientationAir Exhaust Ventilation Toxic Fluid HazardVenting Exhaust AIR Starting and Adjusting the Pump Pressure Relief ProcedureOperation Flush the Pump Before First Use Preventive Maintenance Schedule Maintenance Lubrication Flushing and StorageProblem Cause Solution TroubleshootingRepairing the Air Valve ServiceDisassembly See Fig Relieve the pressure Tools RequiredReassembly Ball Check Valve Repair Diaphragm Repair Removing and Replacing Bearings and Air Gasket on Disassembly Relieve the pressure302 301 Removing and Replacing Bearings and Air Gasket See Fig Through hole must be on bottom Detail of BearingsHusky 3275 Pumps, Series C Pump Matrix232505, Aluminum 3275 Pump, Series C 24D619, Aluminum 3275 Pump, Series aFor Husky 3275 Pumps, Series C Repair Kit Matrix303 301 302 61 2 114 201 102 101 201* 102 Parts DrawingAir Motor Parts List Matrix Column Parts ListsFluid Section Parts List Matrix Column Digit Description QtySeat Parts List Matrix Column Technical DataBall Parts List Matrix Column Diaphragm Parts List Matrix ColumnTorque Sequence Front View Dimensional DrawingsPump Mounting Hole Pattern Side ViewFluid Outlet PRESSURE--psi MPa, bar Performance ChartsFluid Pressure Curves Air Consumption Curves AIR CONSUMPTION--scfm cubic meters/min308639 Graco Information Graco WarrantiesToll Free, 612-623-6921, 612-378-3505 Fax Graco Headquarters Minneapolis
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