John Deere 3800 - Manual (Page 14)

Operating - 10
OPERATING
IMPORTANT: Spray gun traps high water pressure, even when
engine is stopped and water is disconnected.
How to Use Spray Tips
The quick–connect on the nozzle extension allows you to switch
between five different quick connect spray tips. Spray tips can be
changed while pressure washer is running once spray gun trigger
safety lock is engaged. The spray tips vary the spray pattern as
shown below.
Follow these instructions to change spray tips:
1. Pull back collar on quick–connect and pull current spray tip
off. Store spray tips in holder provided on the handle.
2. Select desired spray tip:
• For gentle rinse, select white 40° or green 25° spray tip.
• To scour surface, select yellow 15° or red 0° spray tip.
• To apply detergent, select black spray tip.
3. Pull back on collar, insert new spray tip and release collar.
Tug on spray tip to make sure it is securely in place.
Usage Tips
• For most effective cleaning, keep spray tip from 8 to
24 inches away from cleaning surface.
• If you get spray tip too close, especially using a high
pressure spray tip, you may damage surface being cleaned.
• DO NOT get closer than 6 inches when cleaning tires.
Cleaning and Applying Detergent
To apply detergent, follow these steps:
1. Review use of spray tips.
2. Prepare detergent solution as required by job.
3. Place small filter end of detergent siphoning tube into
detergent container.
NOTE: Make sure the filter is fully submerged in detergent while
applying detergent.
4. Make sure black spray tip is installed.
NOTE: Detergent cannot be applied with the high pressure spray
tips (White, Green, Yellow or Red).
WARNING
The high pressure stream of water that this
equipment produces can cut through skin and its
underlying tissues, leading to serious injury and
possible amputation.
Spray gun traps high water pressure, even when
engine is stopped and water is disconnected, which
can cause injury.
• Keep high pressure hose connected to pump and spray gun while
system is pressurized.
• ALWAYS point spray gun in safe direction, press red button and
squeeze spray gun trigger, to release high pressure, every time you
stop engine.
WARNING
The high pressure stream of water that this
equipment produces can cut through skin and its
underlying tissues, leading to serious injury and
possible amputation.
• NEVER exchange spray tips without the trigger safety lock engaged
on the spray gun.
• DO NOT twist spray tips while spraying.
White
40°
Green
25°
Black Yellow
15°
Red
0°
Low Pressure
Use to apply
detergent
High
Pressure
CAUTION
Chemicals can cause bodily injury, and / or property damage.
• NEVER use caustic liquid with pressure washer.
• Use ONLY pressure washer safe detergents/soaps. Follow all
manufacturers instructions.
NOTICE
Contact with the hot muffler can damage detergent siphoning
tube.
• When inserting the filter into a detergent solution bottle, route the
tube so as to keep it from inadvertently contacting the hot muffler.