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njector

Your pressure washer is supplied with a downstream low pressure 
soap/chemical injector.  Soap is added after the water flows through 
the pump.  The injector is used to add liquids to the water.  The 
injector works only on low pressure.

To draw soap/chemical into the pressure washer, insert the filter end 
of the pick-up hose into the soap/chemical.  Adjust the nozzle to the 
low pressure position.  

Do not

 use powders, granulars, high viscosity 

detergents or acidic based detergents/chemicals in the injector.

To shutdown the injector, remove pick up tube and filter from 
detergent/chemical tank and place it in a container of clear water.  
Run water through the entire system to wash out the chemical you 
were using.

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asher

Severe damage could occur by water freezing inside the components.  
To prevent costly repairs, follow these steps:

1.  Make sure the unit is “OFF”, water supply is disconnected and 

system pressure has been relieved.

2.  Install a suction hose from the pump inlet (garden hose fitting) 

into a gallon of NON-TOXIC RV anti-freeze.  Following operating 
instructions start the machine and squeeze trigger on the spray 
gun allowing the pump to draw anti-freeze through the entire 
system.  Once the anti-freeze appears at the end of the wand, 
turn the machine “OFF”.

3.  Squeeze gun trigger to relieve pressure from system.  Disconnect 

the high pressure hose from the high pressure outlet and put the 
hose, gun/wand and owners manual in a secure place to prevent 
unauthorized people from using the machine.

4.  When preparing to use the pressure washer again, simply 

reconnect the high pressure hose assembly and water supply to 
the unit, turn the water on and squeeze the trigger on the spray 
gun to send water through the system.  Dispose of the anti-
freeze/water solution safely where it will not be harmful to the 
environment, people or animals.

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Long periods of non-use can cause calcium and iron deposits inside 
the pump.  Starting the machine could cause damage to the pump.  
Insert the allen key provided with the unit through the hole in the 
motor end housing and rotate the motor one revolution clockwise 
and counter-clockwise.  Remove the key and start the motor.  It 
should start up easily.

M

aintenance

Change oil after the first 50 hours of use.  Use a SAE20 or 30 non-
detergent oil.  After that, change oil every 200 hours, once a year 
or when it looks milky, more frequently if used in demanding 
environments.  Changing oil is one of the most important and least 
expensive maintenance items, it will prolong the life of your pressure 
washer.

r

oUtine

 c

hecks

 – 

do

 

these

 

Before

 

every

 

Use

.

1.  Check water inlet screens for signs of debris.

2.  Check nozzle for debris and signs of extensive wear.  Worn 

nozzle will result in poor performance.  

Only check nozzle with 

the motor turned “OFF” and the pressure relieved from the 
system!

3.  Check all fittings and connections for leaks and worn areas.

Summary of Contents for AR620

Page 1: ...nst defects in material and workmanship for a period of 1 one year on machine 90 days on gun and hose assembly from the date of retail purchase and is not transferable Warranty covers replacement parts This limited one year warranty applies only to products used in consumer applications and does not apply to rental or commercial applications Warranty Returns Items returned for warranty considerati...

Page 2: ...0 O Ring 1 58 1264070 Ring 1 59 1264060 Pressure gauge piston 1 60 1264090 Pressure gauge spring 1 61 1264080 Plug 1 70 1271170 Ring 1 Read and understand these instructions because they have to do with safety Pay particular attention to the safety symbol throughout this manual Failure to comply with these instructions may result in personal injury or property damage DO NOT allow children to opera...

Page 3: ...ezed ON position 23 No smoking when operating the machine 24 Never use the unit when under the influence of drugs alcohol or medication 25 Do not adjust the unloader 26 Do not move the unit by pulling on the hose or electrical cord 27 Only operate the machine with sufficient water supply to the pump 28 Do not let the machine run with the wand in the not squeezed OFF position for more than 2 minute...

Page 4: ...egend AR620 AR630 1 1260273 Black rear casing 1 2 1261551 Screw 8 3 180030 Screw 4 4 1260710 Black handle 1 5 1261760 Fan cowling 1 6 1264623 Black front casing 1 7 1260470 Screw 4 8 1260830 Base 2 9 1260780 Screw 4 10 1262790 Detergent hose 1 11 1341030 Suction filter 1 12 1269115 Detergent hose w filter 1 13 1260360 Scew extension 1 14 1260300 Fan 1 15 1260970 Washer seal 1 16 1260810 Screw 1 17...

Page 5: ...mp crankcase and install the black dipstick Always check that the oil level is full before operating 3 Oil level can be checked in two places First on back side of pump sight glass level should be half way Second on dip stick oil should read between the indentation on the dip stick Operating Instructions Before Starting the Pressure Washer 1 Read all safety instructions throughout the manual 2 Pla...

Page 6: ...roperly grounded outlet 3 Turn nozzle to low pressure and squeeze trigger 4 Turn ON OFF switch to the ON position and wait until a constant stream of water comes out Adjust nozzle sleeves to achieve proper pressure and coverage area During Operation 1 Observe all safety instructions through this manual 2 Do not allow the machine to run with the wand not squeezed OFF for more than 2 minutes 30 seco...

Page 7: ...h pressure hose from the high pressure outlet and put the hose gun wand and owners manual in a secure place to prevent unauthorized people from using the machine 4 When preparing to use the pressure washer again simply reconnect the high pressure hose assembly and water supply to the unit turn the water on and squeeze the trigger on the spray gun to send water through the system Dispose of the ant...

Page 8: ...ocess If the pressure washer is used to apply wax the gun should be held further from the surface to optimize the misting effect when applying the wax For best results follow the directions supplied by the wax manufacturer Gun Wand and Nozzle Hold the gun wand in the normal operating position Turn the nozzle sleeve clockwise for a fan spray and counterclockwise for a stream Pull the nozzle sleeve ...

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