Cleaning Techniques - DeWalt DXPW1500E Instruction Manual

Chemicals and Cleaning Solvents
Applying chemicals or cleaning solvents is a low-pressure operation.
NOTE: Use only soaps and chemicals designed for pressure washer
use. Do not use bleach.
TO APPLY CHEMICALS AND SOLVENTS
1. Press chemical hose (S) onto barbed fitting
located near high pressure hose connection
of pump as shown.
2. Place the other end of chemical hose with
filter on it into the container holding chemical/
cleaning solution.
NOTE: For every 10 gallons (38 liters) of
water pumped 1 gallon (3.8 liters) of chemical/cleaning solution will be
used.
3. Install low-pressure (black) nozzle into quick connect fitting of spray
wand, refer to Spray Wand Nozzles. NOTE: Chemicals and soaps
will not siphon if the black soap nozzle is not installed on the spray
wand.
4. After use of chemicals, place chemical hose into container of clean
water and draw clean water through chemical injection system to
rinse system thoroughly. If chemicals remain in the pump it could
be damaged. Pumps damaged due to chemicals will not be
covered under warranty.

CLEANING TECHNIQUES

When cleaning with the pressure washer, some cleaning tasks can be
solved with water alone, but for most tasks it is advantageous to use a
detergent. A detergent ensures a quick soaking of the dirt allowing the
high pressure water to penetrate and remove the dirt more effectively.
APPLICATION OF DETERGENT
CAUTION: Avoid working on hot surfaces or in direct sunlight to
minimize the chance of the soap damaging painted surfaces.
CAUTION: Damage may occur to painted surface if soap is allowed
to dry on the surface. Wash and rinse a small section at a time.
1. Apply the solution to a DRY work surface.
NOTE: Wetting the surface first is not recommended, as it dilutes the
detergent and reduces its cleaning ability.
On a vertical surface, apply soap horizontally from side to side starting
from the bottom to avoid streaking.
2. Allow detergent to remain on the surface for a short time before
rinsing.
S 3. Rinse with clean water under high pressure. On a vertical surface,
first rinse from the bottom up, then rinse from the top down. Hold
nozzle 6–8 in. (15–20 cm) from the work surface at a 45° angle
using the flat spray as a peeling tool rather than a scrub brush.
NOTE: Ensure that the detergent injection system is completely clean
prior to switching from one detergent to another.
Starting
WARNING: To reduce the risk of injury, read the pressure washer
instruction manual before starting pressure washer.
DANGER: Risk of fluid injection and laceration. When using the
high-pressure setting, DO NOT allow the high-pressure spray to come
in contact with unprotected skin, eyes, or with any pets or animals.
Serious injury will occur.
• Your washer operates at fluid pressures and velocities high
enough to penetrate human and animal flesh, which could result
in amputation or other serious injury. Leaks caused by loose
fittings or worn or damaged hoses can result in injection injuries.
DO NOT TREAT FLUID INJECTION AS A SIMPLE CUT! See a
physician immediately!
NOTICE: NEVER pull water supply hose to move pres sure washer.
This could damage hose and/or pump inlet.
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