Simpson PS4240 Instruction Manual page 14

NOZZLE COLOR SPRAY PATTERN USES
Green
White
Black
*NOTICE: The high pressure spray from your pressure washer is capable of
causing damage to surfaces such as wood, glass, automobile paint, auto striping
and trim, and delicate objects such as flowers and shrubs. Before spraying, check
the item to be cleaned to assure yourself that it is strong enough to resist damage
from the force of the spray.
HOW TO APPLY CHEMICALS/CLEANING SOLVENTS (FIG. 8)
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:
1. Ensure detergent siphon hose (F, Figure 8) is attached
to barbed fitting location near high pressure hose
connection of pump as shown.
2. Place other end of detergent siphon hose with
filter on it into container holding chemical/cleaning
solution. NOTE: For every 7 gallons of water pumped
1 gallon of chemical/cleaning solution will be used.
3. Install low pressure (black) nozzle into quick connect
fitting of spray wand, see How To Use Spray Wand paragraph in this section.
4. After use of chemicals, place detergent siphon 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 chemical residue will not be covered under warranty.
NOTE: Chemicals and soaps will not siphon if the black soap nozzle is not installed
on the spray wand.
STARTING (FIG. 9–12)
WARNING: To reduce the risk of injury, read the pressure washer instruction
manual and the engine 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.
25˚
40˚
low pressure
standard cleaning
nozzle for most
applications
cleaning of
painted or delicate
surfaces
applies cleaning
solutions
14- ENG
SURFACES*
yard tools, sidewalks,
lawn furniture, unpainted
siding, stucco, gutters
and eaves, concrete,
brick surfaces
auto/RV, marine, wood,
painted brick and stucco,
vinyl, painted siding
Low pressure
spray is safe on all
surfaces. Always verify
compatibility of cleaning
solution prior to use.
8
F