Graco Inc 802-776, 800-232 manual Start-Up

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Water Supply

CAUTION

Before connecting the water supply to the

pump, check your local plumbing code regarding cross-connectionto the watersupply.

A backflow preventor, Part No. 801-133. is available to prevent the back flow of contaminatedwater intothefreshwatersupply. Install upstream from thepump.

DO NOT exceed 160°F (70T) inlet water temperature.

Higher temperatures will damage the pump packings.

.. A. Check flow rate of the water supply. It mus be at least 3 gpm or the pressurewasher will

not develop full pressure. .. '

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E. To check flow rate, time how long it takes to fill a standard five gallonpail; it should take no longer than 1 minute and 40 seconds.

Electrical Supply

7.Connect the power cord to the proper 'power supply. The electrical service required is single phase, 115V. 60 Hz AC, 15 Amp. Electrical service must include a ground wire. If an extension cord is used, it must have a ground wire and be at least No. 14 gage wire. Extension cord must not be over 100 feet long.

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START-UP

Use this procedure each time you start the pressure washer to help ensure the pressure washer is ready to operate and that you start it safely.

1. Check pump oil level. Look at oil level indicator window through inspection hole in side of.the hood. Pump also has a dipstick located under hood on top of pump. Oil level should be uptodot on oil level indicator window and within the notch on dipstick. AddSA€ 20or 30-weight non- detergent oil as necessary.

2.Connect pressure washer to water supply and to 'proper electrical service as described in set-up.

3.Turn water supply on and trigger the gun until water sprays from the tipand all air is purged from thesystem.

4.Press start bunon oncontrol panel,

NOTE: Avoid pressing start button when unit is not plugged in because the stop button cannot bepushedunlessunitis plugged in. Always use motor control switch when starting and stopping unit.

5.Always engage the gun's trigger safety latch whenever you stop spraying, evenfor a moment, to reducethe riskof fluid injection orsplashing in the eyes or on the skin if the gun isbumped or triggered accidentally.

6.Most pressure washer spraying is done at full pressure. If areduced pressure is desired for a special application, there are two methods to reduce the maximum output from thepressure washer.

a.Turn the pressure control knob on the unloader counterclockwise, as needed. This method is best if you are operating consistently at a reduced pressure.

b.Turn chemical selector valve to the "OFF" position, then open the adjustable nozzleon the end of the spray wand, as needed. This method is best to quickly reduce pressurefor a special application.

when the spray gun isin use. Be sure that the safety latch on thegun isin the "ON" position beforeadjusting to avoidseriousbodily injuryor

7.Always observe the following cautions to help avoid costly damage to your pressure washer,

CAUTION

DO NOT allow thepressure washer to idle for more than 10 minutes. The unit is equipped with a thermal relief valve to help avoid the recirculating water frombecoming too hot and seriously damaging the pump, but it is a good idea to turn thepressure washer off if you are not spraying or cleaning at least every 10 minutes.

DO NOT run thepump dry, which will quickly damage the pump. Be sure thewater supply is fully turned on before starting the pump.

DO NOT operate the pressure washer with the inlet screen removed. This screen helps keep abrasive sediment out of the pump, which could clog or scratch the pump.

DO NOTpumpcaustic materials; such materials may corrodethe pump components.