Graco Inc 801-644, 800-066, 3245 manual Startup, Accessories

startup

Beforestarting, besure to readthesafety warnings and setup instructions.

Check the oil and gasoline levels.

Turn on the watersupply.

Trigger the gun.

Open the by-pass valve located on the pump.

Open vent onfuel iankcap. Connen fuel line from tank to engine fuel coupling. Prime gas line by squeezing bulb in line threeto five times. Advance throttle control to the start position.

Turn ON/OFF switch (located under theengine air cleaner) to the ON position. Grasp the starter cord handle, put your foot on the frameor wheel to steady the unit, pullthe cord rapidly out two or three feet. Repeat if necessary withthe choke ringpulled out. When engine fires and beginsto run, push choke ring back in. Close by-pass valve on pump.

the pump will result. Always besurewatersupply is comoletelv turned on before ooeratina.

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Inspect all connectionsfor any leaks. Tighten if necessary.

Cleaning

For Hydra-Clean technique, see the Chemical Injector manual, 801-645.

Forabrasive cleaning, see the WaterSandblaster manual, 801 -646.'

1.Shut off the cleaning unit and triggerthe gun to relieve pressure. Engage the trigger safety.

2.Keep the nozzle and thetubepointedawayfrom you and everyone else.

3.Do not put your hand over the tip to push the nozzle into place.Grasp it from the sideand keep your fingers away from the tip.

4.Do not let anyoneelse touch thesprayvalve while you are cleaning nozzles.

5.Be sure the slip ring is pushed forward to lock the nozzle in place before triggering the spray

4801-644

Shutdown and Care Of Unit

When unit is not in use, turn ,off water supply.

When shutting down for the day or weekend, shut off unit, shut off watersupply valve, and triggergun to relearn pressure. Wipe off the unit with a damp rag.

IShut off cleaning unitactuallyspraying,whennot

for longer pump life. The pump will overheat if left

running for over 10 minutes without .

Check the filter screen in thewater inletconnection as often as necessary, at least daily.Do not operate theunit with the inlet and filter screen removed,

DO NOT try to adjust the unloader valve. Changing

thesetting may cause^ excessive'pressure, intermittent unloader operation and increased wear on parts and will void the warranty.

PUMP MUST NOT BE RUN DRY and must be drained of water prior to exposure to freezing temperatures. Use and Store the unitwhere it will not besubjected to freezing temperatures. If water does freeze in the unit, thaw before trying to start. A 50% anti-freeze solution may be pumped prior to cold weather storage.

Use only spraytips that are matchedto the unit to avoid excessive cycling and wear of the unloader valve. See

ACCESSORIES.

CAUTION

Let a frozenpump thaw in a warm place.Don't pour hot water on a frozenpump. A sudden

temperaturechangemaycrackthe ceramic plungers.

Do not pump caustic materials.

Before extended storage,flush the pump with light oil.

Avoid dragging hose over an abrasive surface such as cement. This causes excessive wear and shorter hose life.

Clean the intake line strainer daily.

Lubrication and Care

Change the engine oil afterevery 100hoursof opera- tion. Drain oil with engine warm. Engine requires 3 pints (1.4 liters)30Woil. See separate instruction manual for maintenance procedures.

Fill pump crankcaseto dot on oilgauge window with 34 02. (1.Oliters) of crankcase oil (partno. 801-144)or equivalent SAE 40weight hydraulic oil with anti- wear and rust inhibitor additives. Change initial fill after 50 hourrunningperiod. Change oil every 3 months or at 500 hour intervals.

stment or mo

Altering or adjusting unloader will not increase performance of unir.

Service of the unloader must be performed onlyby aualified service oersonnel.

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