Graco 311688L important safety instructions Replace the Diaphragms

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Repair

Replace the Diaphragms

Wear gloves when removing or assembling the dia- phragms to reduce the risk of cuts.

Diaphragm Repair Kit 246011 is available. Parts included in the kit are marked, for example (9*). For the best results, replace both diaphragms.

Always replace the ball check seals (29) whenever the fluid covers are removed. These seals are included in each of the repair kits.

1.Prepare the pump for repair of the cylinder-side dia- phragm.

a.Remove the 6 bolts (39) and fluid cover (37) from the housing side of the pump.

b.Press on the exposed diaphragm (9) to fully extend the cylinder-side diaphragm.

c.Replace the housing-side cover and tighten the 6 bolts.

NOTE: The housing-side cover must be reassembled tightly enough to prevent the shaft from turning when the cylinder-side diaphragm is loosened.

2.Repair the cylinder-side diaphragm.

a.Remove the 6 bolts (38) and fluid cover (37) from the cylinder side.

b.Remove the ball check seals (29).

c.The exposed diaphragm should be in the fully extended position (protruding out from the cylin- der). If it is not, reassemble the cylinder-side seals and cover and repeat step 1.

d.Grip the cylinder-side diaphragm firmly and unscrew it from the rod by hand.

e.Install a new diaphragm (9*) firmly, by hand.

3.Prepare the pump for repair of the housing-side dia- phragm.

a.Press on the cylinder-side diaphragm so that it protrudes into the cylinder. This will fully extend the diaphragm on the housing side.

b.Install new ball check seals (29*).

c.Make sure the helicoil (56) is in place in each bolt hole. See Helicoil Installation, page 15.

d.Replace the fluid cover and install the 6 bolts. Torque the bolts to 16 N•m (12 ft-lb). Use blue Loctite or equivalent as needed. See General Repair Notes, page 13.

4.Repair the housing-side diaphragm.

a.Remove the 6 bolts and the fluid cover from the housing side.

b.Remove the ball check seals.

c.The exposed diaphragm should be in the fully extended position (protruding out from the cylin- der). If it is not, reassemble the cylinder-side seals and cover and repeat step 3.

d.Grip the housing-side diaphragm firmly and unscrew it from the rod by hand.

e.Install a new diaphragm (9*) firmly, by hand.

f.Install new ball check seals (29*).

g.Make sure the helicoil (56) is in place in each bolt hole. See Helicoil Installation, page 15.

h.Replace the fluid cover and install the 6 bolts (39*). Torque the bolts to 16 N•m (12 ft-lb). Use blue thread locker as needed. See General Repair Notes, page 13.

Spare diaphragms should be stored in a cool, dry place and be used within 8 months to prevent diaphragm fail- ure due to material aging.

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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 Tightening Threaded Fasteners Before First Use InstallationGeneral Information Mounting the Pump Mounting the PumpFluid Outlet Line Air LineFluid Suction Line Typical Installation KeyGrounding Ground all of this equipmentOperation Pressure Relief ProcedureStarting and Adjusting the Pump Flushing the Pump Before First UseLubrication MaintenancePreventive Maintenance Schedule Flushing and StorageTroubleshooting Problem Cause SolutionPrepare the Pump for Repair Fault IndicationsRepair 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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