Graco 308550ZAC important safety instructions Bearing and Air Gasket Removal, Tools Required

Page 23

Service

Bearing and Air Gasket Removal

Tools Required

DTorque wrench

D10 mm socket wrench

DBearing puller

DO-ring pick

DPress, or block and mallet

Disassembly

NOTE: Do not remove undamaged bearings.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 12.

1.Relieve the pressure.

2.Remove the manifolds and disassemble the ball check valves as explained on page 18.

3.Remove the fluid covers and diaphragm assem- blies as explained on page 19.

NOTE: If you are removing only the diaphragm shaft bearing (19), skip step 23.

4.Disassemble the air valve as explained on page 16.

5.Using a 10 mm socket wrench, remove the screws (25) holding the air covers (23) to the center housing (1). See Fig. 14.

6.Remove the air cover gaskets (22). Always replace the gaskets with new ones.

7.Use a bearing puller to remove the diaphragm shaft bearings (19), air valve bearings (12) or pilot pin bearings (15). Do not remove undamaged bearings.

8.If you removed the diaphragm shaft bearings (19), reach into the center housing (1) with an

o-ring pick and hook the u-cup packings (402), then pull them out of the housing. Inspect the packings. See Fig. 13.

Reassembly

1.If removed, install the shaft u-cup packings (402*) so the lips face out of the housing (1).

2.The bearings (19, 12, and 15) are tapered and can only be installed one way. Insert the bearings into the center housing (1), tapered end first. Using a press or a block and rubber mallet, press-fit the bearing so it is flush with the surface of the center housing.

3.Reassemble the air valve as explained on page 17.

4.Align the new air cover gasket (22) so the pilot pin (16) protruding from the center housing (1) fits through the proper hole (H) in the gasket.

5.Align the air cover (23) so the pilot pin (16) fits in the middle hole (M) of the three small holes near the center of the cover. Install the screws (25), handtight. See Fig. 14. Using a 10 mm socket wrench, torque the screws oppositely and evenly to 130–150 in-lb (15–17 NSm).

6.Install the diaphragm assemblies and fluid covers as explained on page 19.

7.Reassemble the ball check valves and manifolds as explained on page 18.

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Contents Important Safety Instructions Instructions Parts ListModels Table of ContentsEquipment Misuse Hazard SymbolsToxic Fluid Hazard Toxic Fluid Hazard InstallationGeneral Information Tighten Screws Before First UseGround all of this equipment GroundingAir Line Typical FLOOR-MOUNT InstallationFluid Outlet Line Installation of Remote Pilot Air LinesMountings Fluid Suction LineBolt Tightening Sequence Flange ConnectionsFluid Pressure Relief Valve Changing the Orientation of the Fluid Inlet and Outlet PortsVenting Exhaust AIR Air Exhaust VentilationFire and Explosion Hazard Flush the Pump Before First Use Pressure Relief ProcedureStarting and Adjusting the Pump OperationMaintenance Problem Cause Solution TroubleshootingTroubleshooting Tools Required ServiceRepairing the Air Valve DisassemblyReassembly Relieve the pressure. Disconnect all hoses Ball Check Valve RepairDiaphragm Repair Reassembly Standard Diaphragms Reassembly Overmolded Diaphragms 105 19 402 24 104 403 Bearing and Air Gasket Removal Detail of Air Valve Bearings 308550 Husky 2150 Polypropylene and Pvdf Pumps, Series a Pump MatrixFor Husky 2150 Polypropylene and Pvdf Pumps, Series a Repair Kit MatrixParts Air Motor Parts List Matrix ColumnMuffler Fluid Section Parts List Matrix ColumnDiaphragm Parts List Matrix Column Seat Parts List Matrix ColumnBall Parts List Matrix Column 114 Torque Sequence Side View Pump Mounting Hole Pattern DimensionsFront View 14-0.8 MPa, 1.4-8 bar Technical DataFluid Flow GPM lpm Performance ChartFeet meters Psi MPa, barGraco Information Graco Warranties

308550ZAC specifications

The Graco 308550ZAC is a versatile and efficient airless paint sprayer designed for both DIY enthusiasts and professional contractors. Known for its reliability and performance, this unit provides consumers with a powerful solution for their painting projects, ensuring a smooth and even finish.

One of the standout features of the Graco 308550ZAC is its ProXChange technology. This innovative system allows for quick and easy pump replacement without the need for additional tools or complex procedures. This feature ensures minimal downtime, making it especially valuable on job sites where time efficiency is crucial.

The sprayer is also equipped with a powerful electric motor that delivers a consistent pressure of up to 3000 PSI. This high pressure not only facilitates a fine atomization of paint but also enables users to work with a variety of coatings, including thicker materials like latex, stains, and sealers. As a result, users can achieve professional-grade finishes on a range of surfaces, from buildings to fences.

Another significant characteristic of the Graco 308550ZAC is its adjustable pressure control. This feature allows operators to fine-tune the pressure according to the specific paint being used and the project's requirements. This flexibility translates to improved control over the spraying process, minimizing overspray and ensuring precision, particularly when working on detailed areas.

Additionally, the unit comes with a built-in suction hose, which can be submerged directly into paint containers for efficient and seamless painting. This capability makes it easier to use large buckets, reducing the hassle of constantly refilling the sprayer and enhancing productivity.

The Graco 308550ZAC also features a lightweight and portable design, making it easier to transport between job sites. Its robust construction ensures durability, while the ergonomic handle offers comfort during extended use.

In summary, the Graco 308550ZAC is a robust airless paint sprayer that combines advanced technologies and thoughtful design features to meet the needs of both professionals and hobbyists. With its ProXChange system, adjustable pressure control, and high-performance motor, it represents an excellent choice for achieving flawless finishes in various painting applications.
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