Graco Inc 1010, Serles A, 800-903, 720 Troubleshooting Chart, Belt slippage Tank Tighten or replace

Page 9

TROUBLESHOOTING CHART

WARNING

To reducethe risk of serious bodily injury, Includingfluid injection, splashinginthe eyesor on the skin, or injury frommoving parts, always follow the Pressure Relief Procedure Warning beforeproceeding.

I

PROBLEM

 

CAUSE

 

SOLUTION

Low pressure andlor Wom or wrong sizetip.

Replace wiihtip of proper size.

 

IpumpNnS rough InletIfilter clogged.

Clean. Check more frequently.

 

 

 

 

Wornpackings, abrasivesinwater M

Check fitter.Replace packings. See PUMP SERVICE.

 

 

 

natural wear.

 

 

 

 

 

 

Inadequate water supply.

Check water flow rateto pump. Unit must havea

 

 

 

 

mlnimum55 gallon float valve controlled water holding

 

 

 

Belt slippage.

tank.

 

 

 

 

 

Tighten or replace.

 

 

 

 

Fouled ordirty inlet or discharge valves.

Cleaninlet and discharge valve assemblies. Check

 

 

 

Evena small particle cancause the valve

filter.

 

 

 

 

 

to stick.

 

 

 

 

 

 

Restricted inlet.

Check garden hose, maybe collapsed or kinked.

 

 

 

Worn inlet or discharge valves.

Replace wom valves.

 

 

 

1Leaking high pressure hose. . . .

 

- .

 

Water leakage from

ReDlace hioh DreSSure hose.

 

 

Wom packings.

Install new packings.See PUMP SERVICE.

underwmov - r manifold~~~

 

 

 

 

~

"

 

 

 

 

 

Water inpump

 

Humid air condensing inside crankcase.

Changeoil as specifiedin MAINTENANCE.

 

 

 

Worn packings.

Install new packings.See PUMP SERVICE.

Frequent or

 

Oilseals leakino.

Installnew oil seals. See PUMP SERVICE.

 

Scored. damaged or wom plungers.

 

~ e PUMPe

~~~~

prematurefai'ure Of

 

instali new plungers.

SERVICE.

the packings

I

Abrasive materialinthefluidbeing pumped. Install proper flltraiion on pump inlet plumbing.

 

 

Inlet water temperaturetoo high.

Check water temperature; may notexceed 1 W "

 

 

Overpressurizing pump.

Do not modify any faciory-set adJusimenisSee.

 

 

 

IEQUIPMENT MISUSEHAZARD.

 

 

I

 

tip. See Installingand Changlng Spra)

 

 

 

Excessive pressure dueto parilally plugged or replace

 

 

 

or damagedtip.

Neverrunpumpmore than 10minutes wiihout sprayin(

 

 

 

Pumprunningtoo longwithout spraylng.

 

 

 

Running pump dry.

Do not run pump without water.

 

 

 

 

 

 

Strong surging at theForeign particlesinthe inletMdischarge Clean or replace valves.See PUMP SERVICE. inlet and low pressurevalve or wom Inlet and/or discharge valves.

on the discharge side

IUnit willnot start

Unit not plugged in.

 

Electrical sewice off/GFCi activated.

 

Thermal overload has tripped.

Check powerwrd.

Check fuse/clrcuiI breaker. Check for proper grounding.

Press resetb m non motorfor 1 phase units. Press stop button on the mdor siarter3forphase unih.

308-533 9

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Contents 1100psi 75 bar Maximum Working Pressure ~~Pressure WasherFluid Injection Hazard Ground Fault Circuit Interrupter Protection Grounding InstructionsEquipment Misusehazard Moving Parts Hazard Hose SafetyTerms Handleandroute HOS€S Wffully DOnot pullConnect to Water Supply 308-533 StartupInstalling and Changing Spray Tips Trigger Safety LatchSHUTDOWN, Flushing and Storage MaintenanceBelt slippage Tank Tighten or replace Troubleshooting ChartServicing the Plungers Pump ServiceValves Pumping SectionServicing the V-Psckings Parts Drawing Hydra-Clean@710Pressure WasherParts List 803-560803-579 Hydra-Clean@720Pressure Washer 800-904 Hydra-Cleans 720 PressureWasherPump Assembly, 10 GPM 803-635 803-643803-578Pump Assembly, 20 GPM Parts List Accessories Technical Data800-042

1010, 1020, 710, 308-533, 720 specifications

Graco Inc. is a leading manufacturer known for its innovative solutions in the fields of fluid handling and spray equipment. Among its diverse product range, the models 800-905, 800-902, 800-904, 308-533, and 710 stand out for their unique features, advanced technologies, and notable characteristics, catering to a broad spectrum of industrial and commercial applications.

The Graco 800-905 is recognized for its robust construction and reliability. This high-performance unit is designed for heavy-duty applications, providing efficient fluid transfer and precise material delivery. Key features include a durable pressure pump, allowing for extended service life and reduced maintenance. The ergonomic design ensures ease of use, while the built-in safety mechanisms enhance operator protection during operation.

In the case of the Graco 800-902, this model emphasizes versatility and adaptability. It can handle a wide range of fluids, making it suitable for various industries, from automotive to manufacturing. The 800-902 features adjustable pressure settings, offering users the flexibility to switch between different tasks without compromising performance. Its compact design allows for easy transportation and setup, making it ideal for both stationary and mobile applications.

The Graco 800-904 takes efficiency to new heights with its innovative pump technology. It provides a consistent and smooth flow of materials, reducing waste and promoting a cleaner working environment. The model also incorporates an advanced filtration system, ensuring that impurities do not compromise fluid quality. This feature is particularly important in sectors where precision and quality are paramount, such as in the coatings and adhesives industry.

The Graco 308-533 focuses on enhancing user experience through intuitive controls and streamlined workflows. This unit is engineered for rapid deployment, allowing operators to quickly engage in their tasks. Additionally, its energy-efficient design not only reduces operational costs but also minimizes environmental impact, aligning with modern sustainability goals.

Finally, the Graco 710 showcases the brand’s commitment to technological advancement. This model features cutting-edge electronic controls that provide real-time monitoring of performance data, facilitating proactive maintenance and operational adjustments. Its user-friendly interface allows for easy navigation of settings and configurations, making it an ideal choice for professionals seeking precision and control.

In summary, Graco Inc.’s models 800-905, 800-902, 800-904, 308-533, and 710 exemplify the company’s dedication to quality, innovation, and efficiency. Each model provides unique features tailored to meet the diverse needs of various industries, reinforcing Graco's reputation as a trusted leader in fluid handling solutions.
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