Graco 3A0732J important safety instructions Troubleshooting, Problem Cause Solution

Page 14

Troubleshooting

Troubleshooting

Relieve the pressure before checking or servicing the equipment.

NOTE: Check all possible problems and causes before disassembling the pump.

Problem

Cause

Solution

 

 

 

 

 

 

Air motor will not run.

Damaged air valve (214).

Replace or service air valve (214). See

 

 

page 18.

 

 

 

 

Damaged pilot valve (213).

Replace pilot valves (213). See page 20.

 

 

 

Air continuously exhausting around air

Damaged u-cups (207).

Replace piston rod u-cups (207). See

motor piston rod.

 

page 22.

 

 

 

Air continuously exhausting from muf-

Damaged air valve plate (305) or cup

Replace or service air valve (214). See

fler.

(312).

page 18.

 

 

 

Air motor “bounces” at top of stroke.

Damaged bottom pilot valve (213).

Replace bottom pilot valve (213). See

 

 

page 20.

 

 

 

Air motor “bounces” at bottom of

Damaged top pilot valve (213).

Replace top pilot valve (213). See page

stroke.

 

20.

 

 

 

Icing inside motor.

Air motor operating at high pressure or

Reduce pressure, cycle rate, or duty

 

high cycle rate.

cycle of motor.

 

 

Reduce dew point of compressed air in

 

 

moisture coalescing filter.

 

 

 

Pump fails to operate.

Restricted line or inadequate air supply;

Clear line or increase air supply. Check

 

closed or clogged valves.

that the valves are open.

 

 

 

 

Obstructed fluid hose or gun; fluid hose ID

Open, clear*; use hose with larger ID.

 

is too small.

 

 

 

 

 

Fluid dried on the displacement rod (119).

Clean; keep the packing nut wet-cup filled

 

 

with Graco throat seal liquid (TSL).

 

 

 

Pump operates but does not prime.

Held open or worn ball check valves or pis-

Clear valve; replace packings. See page

 

ton packings.

16.

 

 

 

 

Worn suction hose o-ring (38).

Replace suction hose o-ring (38).

 

 

 

Pump operates, but output is low on

Restricted line or inadequate air supply;

Clear line or increase air supply. Check

both strokes.

closed or clogged valves.

that the valves are open.

 

 

 

 

Obstructed fluid hose or gun; fluid hose ID

Open, clear*; use hose with larger ID.

 

is too small.

 

 

 

 

 

Worn packings in displacement pump.

Replace packings. See page 16.

 

 

 

Pump operates, but output is low on

Held open or worn ball check valves or pis-

Clear valve; replace packings. See page

downstroke.

ton packings.

16.

 

 

 

Erratic or accelerated pump speed.

Exhausted fluid supply.

Refill and prime.

 

 

 

 

Held open or worn ball check valves or

Clear valve, replace packings. See page

 

packings.

16.

 

 

 

Fluid being pumped is visible in the

Worn throat packings.

Tighten packing nut.

packing nut wet-cup.

 

Replace throat packings. See page 16.

 

 

 

 

 

Bad spray pattern.

Clean or repair spray gun or tip.

See G15/G40 air-assisted gun manual or

 

 

Silver Plus airless gun manual.

 

 

 

14

3A0732J

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Contents Merkur ES Spray Packages II 2 G c T5Contents Models Fire and Explosion Hazard Equipment Misuse Hazard 3A0732J Prepare the Operator Prepare the Site InstallationAir Line Accessories Supplied ComponentsGrounding Flush Before Using EquipmentWall Mount Packages Fluid supply container follow your local codeSetup KeyTrigger Lock Pressure Relief ProcedureOperation Prime the PumpExample Pump Air Regulator Install the Spray TipAdjust the Atomization Pump Increment Fluid Pressure Ratio Psi MPa, barShutdown Adjust the Spray PatternFollow Pressure Relief Procedure, No air Too little air Correct Amount AirFlush the Pump MaintenanceTighten Threaded Connections Troubleshooting Problem Cause SolutionGeneral Information Disconnect the Displacement PumpRepair To Remove Intake Valve OnlyReassemble the Pump Reconnect the Displacement PumpDisassemble the Pump Displacement Pump Repair Air Valve Disassemble the Air ValveAir Valve Assembly Replace Pilot Valves Reassemble the Air ValveDisconnect the Air Motor Reconnect the Air MotorAir Motor U-cup Installation Repair Air MotorAir Motor Assembly Align Shield in Grooves on Covers See Reconnect the Air Motor onDetail of Stand Kit PartsPackage Parts Package Parts 151 Ratio Pumps PlugPackage Parts 301 Ratio Pumps Parts Hose and Gun Airless PackagesDisplacement Pump Parts Part No G701, Plated Steel Part No G702, Stainless SteelDescription 24G701 24G702 Qty Air Motor Parts 24G693 24G694 In. Motor Air Valve Parts Description 24A537 24A535 24A360 Air Valve Qty Repair KitEnd Cap Kit Air Control Parts Description 24H162 24H163 24H164 24H165 Qty Kits and Accessories Package Dimensions Package WeightsWall Bracket Mounting Hole Diagram Technical Data Fluid Outlet Pressure psi MPa, bar Cycles per Minute Performance ChartsRatio Pumps Ratio Pumps Graco Standard Warranty Graco Information

3A0732J specifications

The Graco 3A0732J is a versatile and efficient airless paint sprayer that is designed to meet the needs of both professionals and DIY enthusiasts. Known for its high performance and reliability, this model stands out in the market for its ease of use and advanced features.

One of the key features of the Graco 3A0732J is its powerful motor, which allows for the sprayer to deliver a consistent and high-output performance. With a maximum tip size of up to .017 inches, it is well-suited for a variety of applications, including interior walls, ceilings, and even exterior surfaces. This capability makes it an ideal choice for both small and large projects, providing the flexibility to handle different painting jobs with ease.

The sprayer is equipped with Graco’s exclusive ProXChange pump technology, which enables users to easily swap out the pump without any tools required. This feature not only reduces downtime but also enhances the efficiency of the painting process. Additionally, the Graco 3A0732J utilizes a reliable and durable design, ensuring that it withstands the rigors of heavy use while maintaining a high level of performance.

Another notable characteristic of this sprayer is its adjustable pressure control. Users can easily modify the pressure settings to suit the specific requirements of different projects, which helps to achieve a smooth and even finish. This adaptability makes the Graco 3A0732J suitable for various coatings, from paints and stains to sealers.

Moreover, the built-in suction hose allows for easy material pickup from any container, offering users the freedom to use their preferred paint or coating without limitation. This feature is particularly appealing for those who wish to utilize bulk materials or different paint types.

The Graco 3A0732J also emphasizes portability and convenience. It features a lightweight design and an integrated handle, making it easy to transport from one job site to another. Additionally, the sprayer's compact size ensures efficient storage when not in use.

In summary, the Graco 3A0732J is a highly functional airless paint sprayer that combines power, flexibility, and user-friendly features. Its advanced technologies, such as ProXChange pump exchange and adjustable pressure control, make it a reliable choice for anyone looking to achieve professional-grade results in their painting projects. Whether for home improvement tasks or larger commercial jobs, this sprayer stands out for its performance and durability.
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