Graco DR2, DS5, D82, D72, D85, DR5, DS2, D81, D75 Bearing and Air Gasket Removal

Page 22

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 11.

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 4.

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. Apply medium-strength (blue) LoctiteR or equivalent to the threads of screws (25), and install the screws handtight. See Fig. 14. Using a 10 mm socket wrench, torque the screws oppositely and evenly to 130 to 150 in-lb (14 to 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 Instructions Parts List Huskyt1040 Air-Operated Diaphragm PumpsTable of Contents SymbolsToxic Fluid Hazard General Information InstallationTightening Screws Before First Use Grounding Ground all of this equipmentFloor Mount Typical Installation Air LineFluid Suction Line Installation of Remote Pilot Air LinesMountings Fluid Outlet LineFlange Connections Bolt Tightening SequenceChanging the Orientation of the Fluid Inlet and Outlet Ports Fluid Pressure Relief ValveFire and Explosion Hazard Air Exhaust VentilationVenting Exhaust AIR Operation Pressure Relief ProcedureStarting and Adjusting the Pump Flush the Pump Before First UseOperation of Remote Piloted Pumps Pump ShutdownLubrication MaintenancePreventive Maintenance Schedule Tightening Threaded ConnectionsTroubleshooting Problem Cause SolutionTroubleshooting Service Repairing the Air ValveReassembly Ball Check Valve Repair Diaphragm Repair Service 19 402 105 104 401 403 Bearing and Air Gasket Removal Detail of Air Valve Bearings Husky 1040 Acetal, Polypropylene, and Pvdf Pumps, Series a Pump MatrixStainless Steel Air Motor Conversion Kit Repair Kit Matrix Parts Air Motor Parts List Matrix Column Digit Description QtyFluid Section Parts List Matrix Column MufflerBall Parts List Matrix Column Seat Parts List Matrix ColumnDiaphragm Parts List Matrix Column Torque Sequence Front View InDimensional.DrawingsSide View Pump Mounting Hole Pattern Technical Data Performance Chart Fluid Pressure CurvesGraco Warranties Graco Information

D75, D81, D85, DS5, DS2 specifications

Graco is a well-known name in the world of spray equipment and fluid management systems, and its range of airless sprayers like the D82, DR2, DR5, D72, and DS2 exemplifies innovation and quality. These models are engineered to meet the diverse needs of professional painters, contractors, and DIY enthusiasts alike.

The Graco D82 is designed for high-performance applications, delivering consistent spray patterns and superior coverage. One of its standout features is the ProConnect system, which allows users to quickly change pumps on the job site, minimizing downtime. Its SmartControl technology ensures a consistent spray pattern at any pressure, allowing for versatility across a range of coatings. Its lightweight, portable design also makes it an ideal choice for jobs of all sizes.

Moving on to the DR2, this model boasts two-piston technology which provides a reliable and powerful performance. It is specifically engineered for working with thicker materials, making it perfect for heavy coatings like elastomerics or textured paints. The DR2's integrated filtration system protects the pump from debris, prolonging its life and ensuring cleaner finishes.

The Graco DR5 takes it a step further by offering a robust solution for contractors working on large-scale projects. This model includes Graco's Endurance pump which is known for its durability and performance longevity. The DR5 features an ergonomic design that enhances user comfort during extended use, while its heavy-duty build can withstand the rigors of demanding job sites.

Next in line is the D72, which offers an efficient spraying solution for both interior and exterior applications. It comes equipped with Graco’s easy-to-use controls and an extended reach design that makes it suitable for large projects. The D72 also integrates advanced technology for automatic pressure adjustment, ensuring optimal spray results regardless of the conditions.

Lastly, the DS2 is a compact yet powerful sprayer suited for smaller projects or tight spaces. This model delivers professional-grade results without the bulk. It features a user-friendly interface that makes it accessible for beginners while still providing the performance features necessary for seasoned professionals.

In summary, the Graco D82, DR2, DR5, D72, and DS2 each bring their own unique advantages to the table. From advanced technologies like ProConnect, SmartControl, and Endurance pumps to user-friendly designs, these models represent Graco's commitment to providing high-quality spray solutions that cater to the diverse needs of their users. Whether for heavy-duty applications or smaller projects, Graco's lineup offers a comprehensive range of options for effective and efficient painting.
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