Pressure Washer
Operation (Continued)
Figure 12 - Optimum angle to cleaning surface
DISTANCE FROM CLEANING SURFACE
The distance between the spray tip and the cleaning surface is another factor that affects the impact force of the water. The impact force of the water increases as the spray tip is moved closer to the surface.
HOW TO AVOID DAMAGING SURFACES
Damage to cleaning surfaces occurs because the impact force of the water exceeds the durability of the surface. You can vary the impact force by controlling the spray tip angle to the cleaning surface and the distance from the cleaning surface and by changing the spray tip. NEVER use a narrow high impact stream on a surface that is susceptible to damage. Avoid spraying windows with a narrow high impact stream. Doing so may break the window. The most sure way to avoid damaging surfaces is to follow these steps:
1.Before triggering the gun, make sure the quick connect tip you are using is appropriate for the application.
2.Place the spray tip approximately
3.Vary the fan pattern spray angle and the distance to the cleaning surface until optimum cleaning efficiency is achieved without damaging the surface.
The color of the tip shows what spray angle it is:
Red – 0° – Maximum Duty*
Yellow – 15° – Heavy Duty
Green – 25° – General Duty*
White – 40° – Light Duty*
Black – 65° – Low Pressure Detergent
* = Not Included
4. Detergent Application
NOTE: Use only detergents formulated for pressure washers.Test detergent in an inconspicuous area before use.
DETERGENTS
The use of detergents can dramatically reduce cleaning time and assist in the removal of difficult stains. Many detergents are customized for pressure washer use on specific cleaning tasks. Pressure washer detergents are as thick as water.
Using thicker detergents – like dish soap – will clog the chemical injection system and prevent the application of the detergent.
Once applied to a cleaning surface, detergents take time to break down dirt and grime. Detergents work best when applied at low pressure.
You can effectively clean surfaces by combining the chemical action of detergents with high pressure rinses. On vertical surfaces, apply the detergent starting at the bottom and work your way upward. This method prevents the detergent from sliding down and causing streaks. Begin high pressure rinsing at the bottom and work your way upward. On particularly tough stains, use a brush in combination with detergents and high pressure rinsing.
1.Follow manufacturer’s label directions for mixing correct concentrations of soap/detergents. The soap detergent to water ratio through the pump is approximately 12% (1 to 8).
2.Pour detergent into the detergent tank. The tank capacity is 1.5 gallons.
3.Install 65º (Black) Low Pressure Detergent Tip in the quick connect fitting on the end of the lance.
!WARNING NEVER replace quick connect tip when gun is triggered. Always engage trigger lock on
gun before removing or installing quick connect tips.
GENERAL CLEANING TIPS
1.Apply the detergent so that it thoroughly covers the cleaning surface. Apply the detergent from bottom to top to prevent the detergent from sliding down and streaking. Wait a couple of minutes for the detergent to break down the dirt and grime. Use a brush to lightly scrub heavily soiled areas. Never allow the detergent to dry on the cleaning surface.
2.Replace black 65º quick connect tip with the yellow 15º tip and complete final rinse.
!WARNING NEVER replace quick connect tip when gun is triggered. Always engage trigger lock on
gun before removing or installing quick connect tips.
3.NOTE: After using detergents, flush the suction system by rinsing out tank with clean water and running unit with black 65º tip flushing clean water from tank through the pump.
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