Graco 311688L important safety instructions Repair the Air Valve, Disassembly

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Repair

Repair the Air Valve

Air Valve Repair Kit 245066 is available. Parts included in the kit are marked, for example (33†). For the best results, use all parts in the kit.

Disassembly

1.Prepare the pump for repair, page 13.

2.Remove the air valve sheet metal cover (36) and felt dampener (34).

3.Unscrew the cylinder screws (21).

4.Remove the valve cover (20) with the flat gasket (19†).

5.Use two screwdrivers to lift out the air valve plate (16†) and replace o-rings (17†◆) and (18†◆). Remove two o-rings (55).

6.Remove the air valve cup (15†).

7.Remove one retaining clip (14) with pliers DIN 5256C nominal size 12-25 diameter.

8.Screw cylinder screw (21) into the plug (12) and pull it out. Replace o-ring (13†◆).

9.Repeat steps 8 and 9 for clip and plug on opposite side.

10.Reach into the housing and press out the carriage (10).

11.Replace o-rings (11†◆).

Reassembly

NOTE: Lubricate all o-rings when reassembling the pump.

1. Assemble in reverse order.

NOTE: Orient the new flat gasket (19) on the air valve plate (16) so that the channels in the plate are com- pletely covered.

Note the orientation of the air valve plate (16) relative to the fluid outlet arrow, with “POM” marking up

“POM” marking

fluid outlet arrow

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2.Replace all parts with the new ones supplied in kit 245066.

NOTE: Four profile seals (29) are provided in kit 245066 as in all 308HP kits. These seals need to be replaced only if the fluid covers are removed.

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311688L

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Contents Triton 3D150 Diaphragm Pump II 2 GTable of Contents Equipment Misuse Hazard Fire and Explosion Hazard General Information InstallationTightening Threaded Fasteners Before First Use Mounting the Pump Mounting the PumpFluid Suction Line Air LineFluid Outlet Line Typical Installation KeyGrounding Ground all of this equipmentPressure Relief Procedure Starting and Adjusting the PumpOperation Flushing the Pump Before First UseMaintenance Preventive Maintenance ScheduleLubrication Flushing and StorageTroubleshooting Problem Cause SolutionFault Indications RepairPrepare the Pump for Repair General Repair NotesReplace the Diaphragms Helicoil Installation Replace the DiaphragmsDisassembly Repair the Air ValveRepair the Air Valve Repair the Shaft and Bearings Fluid Inlet and Outlet AdaptersRepair the Shaft Replace the Ball Check Valves Replace the Ball Check Valves Parts Part No BSPP, Series B Part No NPT, Series B Technical Data Category DataPerformance Chart Dimensions Dimensions 311688L Graco Standard Warranty Graco Information

311688L specifications

The Graco 311688L is a high-performance airless paint sprayer, designed for both professional contractors and DIY enthusiasts looking to achieve a flawless finish on their projects. Engineered for reliability and efficiency, the Graco 311688L stands out in the competitive market of paint sprayers, offering a range of features that cater to various painting tasks.

One of the key features of the Graco 311688L is its powerful motor, which delivers consistent pressure to ensure an even and smooth application of paint. The unit is designed to handle a variety of coatings, including unthinned paints, stains, and sealers, making it versatile enough for numerous projects, from indoor walls to outdoor fences. The sprayer can cover large areas quickly, reducing the amount of time needed to complete a job.

Equipped with Graco's ProXChange technology, the Graco 311688L allows for easy replacement of the pump without the need for tools, minimizing downtime during projects. This feature is especially beneficial for professionals who need to maintain efficiency on job sites. The sprayer also includes the Graco SmartControl technology, which provides a consistent spray pattern regardless of the selected pressure. This technological advancement aids in achieving optimal results while allowing users to adjust the spray patterns according to their needs.

In terms of ergonomics, the Graco 311688L is designed with user comfort in mind. The lightweight design and integrated handle make it easily portable, while the adjustable spray tip enables users to customize the size and shape of the spray fan for precision work. Additionally, the unit features a built-in suction tube that allows for painting directly from a paint bucket, reducing mess and increasing convenience.

Safety has not been overlooked in the Graco 311688L design. It features a pressure relief valve that ensures safe operation, preventing unwanted discharge of paint when the motor is turned off. The unit also comes with a durable construction that enhances its longevity, making it a worthwhile investment for anyone serious about painting.

To sum it up, the Graco 311688L offers a blend of power, efficiency, and user-friendly features that make it an excellent choice for various painting applications. Whether you're a seasoned professional or a weekend warrior, this airless paint sprayer provides the performance and reliability needed to tackle any paint job with confidence.
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