Graco D81, DS5, D82, D72, D85, DR2, DR5, DS2, D75 Service, Repairing the Air Valve

Page 16

Service

Repairing the Air Valve

Tools Required

7.Clean all parts and inspect for wear or damage. Replace as needed. Reassemble as explained on page 17.

DTorque wrench

DTorx (T20) screwdriver or 7 mm (9/32”) socket wrench

DNeedle-nose pliers

DO-ring pick

DLithium base grease

NOTE: Air Valve Repair Kits 236273 (aluminum center housing models) and 255061 (sst center housing models) are available. Refer to page 26. Parts included in the kit are marked with a symbol, for example (4{H). Use all the parts in the kit for the best results.

Disassembly

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

3 2

Torque to 50–60 in-lb (5.6–6.8 N-m).

2

4{H

04164B

2.

With a Torx (T20) screwdriver or 7 mm (9/32”)

 

socket wrench, remove the six screws (3), air

 

valve cover (2), and gasket (4). See Fig. 7.

3.

Move the valve carriage (5) to the center position

 

and pull it out of the cavity. Remove the valve

 

block (7{H) and o-ring (6{H) from the carriage.

 

Using a needle-nose pliers, pull the pilot block (18)

 

straight up and out of the cavity. See Fig. 8.

4.

Pull the two actuator pistons (11) out of the bear-

 

ings (12). Remove the u-cup packings (10) from

 

the pistons. Pull the pilot pins (16) out of the

 

bearings (15). Remove the o-rings (17) from the

 

pilot pins. See Fig. 9.

Fig. 7

1See Detail at right.

2Grease.

3 Grease lower face.

5

2H{6

3H{7

H{18 3

5 1

5.

Inspect the valve plate (8) in place. If damaged,

 

use a Torx (T20) screwdriver or 7 mm (9/32”)

 

socket wrench to remove the three screws (3).

 

Remove the valve plate (8) and, on aluminum

 

center housing models only, remove the seal (9).

 

See Fig. 10.

6.

Inspect the bearings (12, 15) in place. See Fig. 9.

The bearings are tapered and, if damaged, must be removed from the outside. This requires disas- sembly of the fluid section. See page 22.

16 308443

11

16

04165

 

Fig. 8

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Image 16
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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 LineInstallation of Remote Pilot Air Lines MountingsFluid Suction Line 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 Pressure Relief Procedure Starting and Adjusting the PumpOperation Flush the Pump Before First UseOperation of Remote Piloted Pumps Pump ShutdownMaintenance Preventive Maintenance ScheduleLubrication 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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