Craftsman 580.752 owner manual Check Gun and Nozzle Extension, Nozzle Maintenance

Check High Pressure Hose

High pressure hoses can develop leaks from wear, kinking, or abuse. Inspect hose before each use.

Check for cuts, leaks, abrasions, bulging of cover, or damage or movement of couplings. If any of these

conditions exist, replace hose immediately.

WARNING

To remove contaminants from the pump, follow these steps:

1.Set up pressure washer as described in ::Assembling Your Pressure Washer" section, and connect water supply.

2.Remove nozzle extension from gun.

3.Start engine according 1:oinstructions in =How To Use Your Pressure Washer" section.

4.Pull trigger on gun and hold.

5.When water supply is s1:eadyand cons1:ant, engage safety la1:chand refes1:ennozzle extension.

pressure rating 0f Unit,

Check Gun and Nozzle Extension

Examine hose connection to gun and make sure it is secure. Test trigger by pressing it and making sure it

springs back inl:o place when you release it. Engage safety lal:ch and test trigger. You should not be able to

press trigger. Replace gun immediately if it fails any of these tests.

Check In-Line Filter

Refer to the illustration and service the in-line filter if it becomes clogged, as follows:

Nozzle Maintenance

A pulsing sensation felt while squeezing the spray gun trigger may be caused by excessive pump pressure. The principal cause of excessive pump pressure is a nozzle clogged or restricted with foreign materials, such as dirt, e1:c.To correct the problem, immedia1:ely clean the nozzle following these ins1:ructions:

1.Shut off engine and turn off water supply.

2.Remove nozzle from end of nozzle extension. Separa1:e nozzle extension from spray gun. Twist nozzle clockwise to stream position. Using a 2ram (5/64) allen wrench, remove orifice from end of nozzle extension.

N0zzle extension	=
	O-ring

1.De1:achnozzle extension from gun and remove

o-ring and screen from nozzle extension. Flush screen, gun, and nozzle extension with clean water to clear debris.

2.Place in-line fil1:erscreen into threaded end of nozzle extension. Direction does not matter. Push

screen in with eraser end of pencil until it rests fiat at bottom of opening. Take care not to bend screen.

3.Place o-ring into recess. Push o-ring snugly against in-line filter screen.

4.Assemble nozzle extension to spray gun, as described earlier in manual.

Purge Pump of Air and Contaminants

To remove air from the pump, follow these steps:

1.Set up pressure washer as described in ::Assembling Your Pressure Washer" section and connect water supply.

2.Pull trigger on gun and hold until a steady stream of water appears.

3.Remove in-line filter from other end of nozzle extension.

4.Use a small paper clip to free any foreign material clogging or restricting orifice.

Insertwireint00rificoandtumback

and forth t0 Clear 0bstructi0ni

5.Using a garden hose, remove additional debris by back flushing wa1:erthrough nozzle extension. Back

flush belween 30 to 60 seconds. Turn adjustable nozzle extension to stream spray and move nozzle from low to high while flushing.

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