Graco Inc 801-888, 800-094 manual

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Turn control ring on adjustablenozzle clockwise to cause a drop in pressure.

Start pressure washer unit and triggerspray gun. The. injector may draw momentarily as system is filling but normallywill stop as system builds up to fullpressure.To actuate injector, turn chemical adjustment knob out. counterclockwise. until chemical begins to be drawn from thecontainer. After the chemicalreaches injector, flow rate may be adjusted by turning the adjustment knob. At two full turns fromthe closed position of the chemical adjustment knob, maximum chemical flow is obtained. Do not exceed two turns.

Check the distanceyou will need to hold spraynozzle from surface by test spraying ona scrap of similar material. For soft surfaces, such as wood, hold nozzle about 3 feet (1 m)from surface and gradually bringit closer, check. to see if the high pressurespray is damaging the surface.

Mist-wet surface with cleaning solution. itLetsoak briefly, thenuse spray rinse to “chisel” off dirtKeep. nozzle at an angle tosurface, and at distance you determined to be best for surface. If some dirt remains, repeat procedure, letting. it soak a little longer. Stubborndirt can be cleanedoff better with a stronger, heated cleaning solution.

Protect surfaces that mightbe damaged by cleaning solution or high pressurespray, and rinse solution before it dries.

Shutdown And CareOf Unit

When unit is notin use, turn off watersupply.

When shutting down for daytheorweekend, shut off unit, shut off water supplyvalve, and trigger gun to release pressure. Wipe off theunit with a damp rag.

This model runs withvery little noise due to sizethe ofthemotorandpump.Besurethattheunitisturned off when notin use. If unit is left running, when not actually using spray gun, the buildofuptemperature

in the, by-pass loop of the pump couldexceed the manufacturer’s specifications of 16BF (71OC) maximum. Thiswill cause shortened pump life.

CAUTION

spraying, for longer pump life.The pump will overheat if left running for over 10 minutes

Check the filterscreen in the water inlet connection as often as necessary, at least daily. Do not operate the unitwith the inletand filter screen removed.

PUMP MUST NOT BE RUN DRY and mustbe drained of water priorto exposure to freezing temperatures.’ Use and store the unit whereit will not be subjected to freezing temperatures. If waterdoes freeze in the unit, thaw before trying to startA. 50% anti-freeze solution may be pumped prior to cold weather storage.

Use only spray tips that are matchedto the unit to avoid excessive cycling and wearof the unloader valve.

CAUTION

pour hot water ona frozen pump. A sudden temperature change may crack the ceramic

Do not pump caustic materials.

Before extendedstorage, flush the pump with light oil.

Avoid dragging hoseoveranabrasivesurfacesuchas cement. This causes excessive wear and shorter hose life.

Clean the intake line strainer daily.

Lubrication and Care

Fill pump crankcase todot on oil gauge window with 10 . 20~(..0.liters)3 of crankcaseoil (part no. 801-144) or equivalent SAE 20/30 weight hydraulic oil with anti-wear and rust inhibitor additivesChange. initial fill after 50 hour running periodChange. oil every 3 months or at 500 hour intervals.

Winter Maintenance

1.Turn off and disconnect water supply and discharge lines.

2.Pump a 50% antifreeze solution through the machine making sure all water has been displaced.

3.When machine is needed, connect the water supply and circulate the antifreeze from the machine to containers forreuse. When the water flowing from the outlet becomesclear, reconnect discharge lines.

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