Graco Inc 800-670, 308-523, 800-672, 800-674, 800-671 manual Troubleshooting Chart, Problem

Page 9

TROUBLESHOOTING CHART

WARNING

To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin or injury from moving parts, always follow the Pressure Relief Procedure Warning before proceeding.

PROBLEM

CAUSE

SOLUTION

 

 

 

Engine will not start or

No gasoline in fuel tank or carburetor.

Fill the tank with gasoline, open fuel shut off valve.

is hard to start

 

Check fuel line and carburetor.

 

Low oil

Add to proper level.

 

Start/Stop switch in Stop position.

Move switch to start position.

 

Water in gasoline or old fuel.

Drain fuel tank and carburetor. Use new fuel and dry

 

 

spark plug.

 

Choked improperly. Flooded engine.

Open choke and crank engine several times to clear

 

 

out gas.

 

Dirty air cleaner filter.

Remove and clean.

 

Spark plug dirty, wrong gap or wrong type.

Clean, adjust the gap or replace.

 

Spray gun closed.

Trigger spray gun.

 

 

 

Engine misses or

Partially plugged air cleaner filter.

Remove and clean.

lacks power

Spark plug dirty, wrong gap or wrong type.

Clean, adjust the gap or replace.

 

 

 

 

Low pressure and/or

Worn or wrong size tip.

Replace with tip of proper size.

pump runs rough

Inlet filter clogged.

Clean. Check more frequently.

 

Worn packings, abrasives in water or

Check filter. Replace packings. See PUMP SERVICE.

 

natural wear.

 

 

Inadequate water supply.

Check water flow rate to pump.

 

Fouled or dirty inlet or discharge valves.

Clean inlet and discharge valve assemblies. Check

 

Even a small particle can cause the valve

filter.

 

to stick.

 

 

Restricted inlet.

Check garden hose, may be collapsed or kinked.

 

Worn inlet or discharge valves.

Replace worn valves.

 

Leaking high pressure hose.

Replace high pressure hose.

 

 

 

Water leakage from

Worn packings.

Install new packings. See PUMP SERVICE.

under pump manifold

 

 

Water in pump

Humid air condensing inside crankcase.

Change oil as specified in MAINTENANCE.

 

Worn packings.

Install new packings. See PUMP SERVICE.

 

Oil seals leaking.

Install new oil seals. See PUMP SERVICE.

 

 

 

Frequent or premature

Scored, damaged or worn plungers.

Install new plungers. See PUMP SERVICE.

failure of the packings

Abrasive material in the fluid being pumped.

Install proper filtration on pump inlet plumbing.

 

 

Inlet water temperature too high.

Check water temperature; may not exceed 160_F.

 

Overpressurizing pump.

Do not modify any factory±set adjustments. See

 

 

EQUIPMENT MISUSE HAZARD.

 

Excessive pressure due to partially plugged

Clean or replace tip. See Installing and Changing

 

or damaged tip.

Spray Tips.

 

Pump running too long without spraying.

Never run pump more than 10 minutes without

 

 

spraying.

 

Running pump dry.

Do not run pump without water.

 

 

 

Strong surging at the

Foreign particles in the inlet or discharge

Clean or replace valves. See PUMP SERVICE.

inlet and low pressure

valve or worn inlet and/or discharge valves.

 

on the discharge side

 

 

 

 

 

Oil leakage between

Worn gasket.

Replace the gasket. See SERVICE SECTION.

the gear reducer cover

 

 

and case

 

 

Oil leakage between

Worn oil seals and/or o-ring.

Replace oil seals and/or o-ring. See SERVICE

the gear reducer cover

 

SECTION.

and the pump

 

 

 

 

 

Oil leakage between

Worn oil seal.

Replace oil seal. See SERVICE SECTION.

the gear reducer case

 

 

and the engine

 

 

 

 

 

￿￿￿￿￿￿￿ 9

Page 8 Page 10
Image 9
Page 8 Page 10
Contents COPYRIGHT 1990, Graco INC HYDRA-CLEAN1535 Pressure WasherPressure Relief Procedure General SafetySpray Gun Safety Devices Medical TreatmentEquipment Misuse Hazard Hose SafetyFuel and Emission Hazards System PressureTerms Moving Parts HazardSet Up InstallationCheck for Shipping Damage Connect to Water SupplyStartup Installing and Changing Spray Tips Trigger Safety LatchSHUTDOWN, Flushing Storage MaintenanceProblem Troubleshooting ChartParts Drawing 800±672 & 800±674 Hydra±Cleanr 2040 Pressure WasherParts List 800±670 & 800±671 Hydra±Cleanr 1535 Pressure Washer 801±569 Quick Coupler 802±300 Pump & Gear ReducerReplacing the Gasket Replacing the O±RingReplacing the Oil Seal Assembling the Gear ReducerPart Description QTY Replacing the Oil Seals 802±143 Gear Reducer Model 802±265 Pump Assembly, 1500 psi Manifold KIT Valve AssemblyKIT ±RING KIT803±405 Pump Assembly, 2000 psi Shim KIT CAP Washer Valve Assembly±RING KIT PackingValves Pump ServicePumping Section Servicing the PlungersAccessories Technical DataServicing the V±Packings Graco Warranty Important Phone NumbersGraco INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440±1441

800-670, 800-671, 800-674, 800-672, 308-523 specifications

Graco Inc is a leading manufacturer of fluid handling systems and products, recognized for its innovative solutions in a variety of industries, including construction, automotive, industrial, and more. Among its extensive lineup, Graco offers a range of air-assisted airless sprayers, electric sprayers, and hydraulic sprayers, designed for professional applications. The model numbers 800-674, 308-523, 800-670, 800-672, and 800-671 refer to specific units designed to meet diverse needs, each boasting unique features that contribute to efficiency, precision, and ease of use.

One of the main features of these Graco products is their advanced spray technology. Graco has developed a unique air-assisted airless technology that combines the benefits of both traditional airless spraying and air sprayers. This results in a fine finish with reduced overspray and improved transfer efficiency. Users benefit from the ability to tackle various coatings, from thick materials to thin stains, with consistent results.

Durability is another key characteristic of Graco sprayers. These units are built with high-quality materials, ensuring they can withstand the rigors of daily use in demanding environments. Their components are designed for longevity, reducing the need for repairs or replacements over time. Additionally, Graco’s sprayers often include features such as easy-to-clean pumps and quick-change tip systems, enhancing operational efficiency.

User-friendliness is a crucial consideration in the design of Graco’s equipment. From intuitive control panels to adjustable pressure settings, the sprayers are designed to cater to users of varying experience levels. This focus on ergonomics reduces operator fatigue and simplifies the setup and clean-up processes, allowing professionals to concentrate on their work without getting bogged down by complicated machinery.

Another important aspect of Graco sprayers is their versatility. The models can handle a wide range of materials, making them suitable for various applications, from residential painting to large-scale industrial projects. The compatibility with different nozzles and spray tips further enhances this versatility, enabling users to switch applications seamlessly.

In summary, Graco Inc’s model numbers 800-674, 308-523, 800-670, 800-672, and 800-671 embody the brand’s commitment to innovation in fluid handling equipment. With advanced spraying technology, durability, user-friendly features, and versatility, these sprayers are trusted by professionals seeking reliable solutions for their painting and coating needs. Graco continues to set the standard in the industry, ensuring that users achieve high-quality results efficiently and effectively.
Top Page Image Contents