INSTRUCTIONS-PARTS
LIST
This
manual
conteins
IMPORTANT
WARNINGS
and
INSTRUCTIONS
READ
AND RETAIN
FOR
REFERENCE
HYDRA-CLEAN
@
4040
Pressure Washer
Model
800-345,
Series
A
230/460
Volt,
3
Phase
4ooo
psi
(276
bar)
OPERATING PRESSURE
4300psi
(296
bar)
MAXIMUM
WORKING PRESSURE
GRACO INC.
RO.
Box
1441 MINNEAPOLIS, MN 55440-1441
@COPYRIGHT
1990,
GRACO
INC.
~
BNG
HIGH
PRESSURE SPRAY CAM CAUSE SERIOUS INJURY.
FOR
PROFESSIONAL
USE
ONLY.
OBSERWE
ALL WARNINGS.
Read
and
understand
all
instruction
manuals
before
operating
equipment.
FLUID INJECTION HAZARD
General
Safety
This pressure washer generates very
high
fluid
pressure. Spray from the gun, leaks or ruptured
components can inject fluid through your skin and into
your body and cause extremely serious bodily injury
including theneedforamputation. Als0,fluid injectedor
splashed into the eyes or on the skin can cause serious
damage.
NNER
point the spray gun or wand at anyone
of
at any
part of the body.
NNER
put hand or fingers over the
spray tip.
ALWAYS
follow the Pressure Rellef Procedure, before
cleaning or servicing any part of the sprayer.
NNER
try
to
stop or deflect leaks with your hand or
body.
properly before each use.
Be sure equipment safety devices are operating
Medical
Treatment
If
any
fluid
appears
to
penetrate your skin, get
NOTTREAT AS A SIMPLE CUT. Tell the doctor exactly
EMERGENCY MEDICALTREATMENTATONCE.
DO
what fluid was injected.
NOTE TO PHYSICIAN: lnjection
in
the skin
is
a
traumatic
injufg
It
Is
Important
to
treat the
Injury
surglcally
as soon
as
posslble.
Do
not delay
treatment
to
research toxicip Toxicily
is
a
concern with some exotic coatings injected
directw into the bloodstream. Consultation with a
plastic surgeon or reconstructive hand surgeon
may be advisable.
Pressure
Relief Procedure
To
reduce the risk
of
serious bodily Injury, including fluid
injection and splashing in the eyes or on the skin,
always follow this procedure whenever you stop
spraying for more than
10
minutes, when shutting down,
and before checking or repairing any part of the system.
1.
Engage the trigger safety latch.
2.
Turn the sprayer
off.
3.
Disconnect the electrical supply.
4.
Shut
off
the water supply.
5.
Disengage the trigger safety latch and trigger the
safety latch again.
gun
to
relieve pressure, and then engage the trigger
6.
Before long-term (overnight) storage, disconnect
the water supply and disconnect the electricity.
Spray
Gun
Safety Devices
Be sure all gun safety devices are operating properly
the gun; this can cause a malfunction and result in
before each
use.
Do not remove or modify any part of
serious bodily
injury.
SAFm LATCH:
Whenever you stop spraying for a
moment, always set the gun safety latch in the engaged
0r"safe" position, making the guninoperative. Failure
to
properly
set
the safety latch can result in accidental
triggering of the gun.
cleaning
or
changing spray
tips.
If
a
spray tip
clogs
SPRAY
TIP
SAFm
Use extreme caution
when
while spraying, engage the gun safety latch
immediately.
ALWAYS
follow the Pressure Relief
Procedure and then remove the spray tip
to
clean it.
..
..
.
..
2
308-522
This product must be grounded. If it should malfunction
or break down, grounding provides a path
of
least
resistance for electric cunent
to
reduce the risk of
electric shock. This equipment is equipped with a cord
having an equipment-grounding conductor and a
grounding plug. The plug must be plugged Into an
appropriate outlet that is properly installed and
grounded
in
accordance with all local codes
and
ordinances.
DANGER
Improper connection of the equipmentgrounding conductor can result in the risk of
electrocution. Check with a qualified electrician
or service person
if
you are
in
doubt as
to
whether the outlet is properly grounded. Do not
will not
fit
the outlet, have a proper outlet
modify the plug provided with the product
-
if it
installed by a qualified electrician.
GROUND
FAULT
CIRCUIT INTERRUPTER PROTECTION
To
comply with the National Electrical Code (NFPA
70)
and
to
provide additional protection from the risk of
receptacle that is protected by a ground-fault
circuit-intempter (GFCI).
electric shock, connect this pressure washer
to
a
..
,
EXTENSION CORDS
Use only 4-wire extension cords that have 4-prong
grounding-type plugs and 4-pole cord connectors that
'
heat and sharp edges. Always disconnect the extension
or pull on any cord
to
disconnect. Keep cord awayfrom
accept the plug from the product. Use only extension
cords that are intended for outdoor
use.
These
cord from the receptacle before disconnecting the
Droduct from the extension cord.
extension cords are identified by a marking,
"Acceptable for use with outdoor appliances; store
1-
WARNING
-1
having an electrical rating not
less
than the rating of the
indook while not in
use."
Use only.extension cords
product. Do not use damaged extension cords.
To reduce the risk of electrocution, keep all
Examine extension cord before using and replace
if
connections dry and
off
the ground. Do not
damaged.
Do
not abuse extension cord and do not yank
touch plug with wet hands.
EQUIPMENT MISUSE
HAZARD
General Safety
Any misuse of the pressure washer or accessories,
such as overpressurizing, modifying parts, using
damaged parts, can cause them
to
rupture and
result in
incompatible chemicals and fluids, or using worn or
fluid injection, splashing in the eyes or on the skin, or
other serious bodily injury, fire, -explosion or property
damage.
NNER
alter or modify any part ofthis equipment; doing
so
could cause it
to
malfunction.
CHECK
all
spray equipment regularly
and
repair or
replace worn or damaged park immediately.
This sprayer can develop high operating pressure.
Be
System Pressure
sure that all spray equipment and accessories are rated
to
withstand the maximum working pressure of this
sprayer.
DO
NOT
exceed the maximum working
pressure of any component or accessory used in the
system.
Chemical Compatibility
BE
SURE
that all chemicals used in the chemical
hose,
gun, wand and tip, as given in the Technical Data
injector are compatible with the wetted parts of the
manufacturer's literature before using any chemical in
(inside back
cover).
Always read the chemical
ALWAYS
wear protective eyewear and appropriate
the chemical manufacturer's literature for
clothing.
If
using a chemical injector, read and follow
such as a respirator.
recommendations on additional protective equipment,
this pressure washer.
"
308-522
3
HOSE
SAFETY
High
pressure fluid
in
the hoses can be very dangerous.
If
the hose develops a leak, split or rupture due
to
any
spray emitted from it can cause a fluid injection injury or
kind
of
wear, damage or misuse, the high pressure
other serious bodily injury or property damage.
ALL FLUID HOSES MUST HAVE STRAIN RELIEFS ON
BOTH ENDS.
The strain reliefs help protect the hose
from kinks or bends at or close
to
the coupling, which
can result in hose rupture.
TlGHTEN
all fluid connections securely before each
'use. High pressure fluid can dislodge a loose coupling
or allow high pressure spray
to
be emitted from the
coupling.
NNER
use a damaged hose. Before each
use,
check
entire hose for
cuts,
leaks, abrasion,
bulging
cover,
or
damage or movement of the hose couplings. If any of
these condRions exist, replace the hose immediately.
DO
NOT
try
to
recouple high pressure hose or mend it
with tape or any other device.
A
repaired hose cannot
contain the high pressure fluid.
HANDLEAND
ROUTEHOSES CAREFULLY
Do
not pull
on hoses to move the pressure washer.
Do
not use
chemicals which are not compatible wlth the inner
tube
and cover of the hose.
DO
NOT
expose Graco hose to
temperatwes above
2M)"
F
(93'
G)
M
below
-40'
F
(-400
C).
MOVING
PARTS
HAZARD
Moving parts can pinch or amputate fingers or other
Pressure Rellet Procedure
before checking or
body parts.
KEEP
CLEAR of moving parts when starting
or operating the pressure washer.
servicing the pressure washer
to
prevent discharging
high pressure fluid from the gun.
NNER
operate the pressure washer without all guards
and interlocks installed and functioning. Follow the
TERMS
conditions that could cause bodily injury.
WARNING
or
DANGER
Alerts user
to
avoid or correct
NOTE
Identifies helpful procedures and information.
that could cause damage
to
the equipment.
CAUTION
Alerts user
to
avoid or correct conditions
IMPORTANT
standards-particularly the General Standards, Part 1910, and the Construction Standards, Part 1926-should be
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These
consulted.
4
308-522
INSTALLATION
PUMP
MOTOR DIPSTICK QUICK
PUMP OIL LEVEL
INDICATOR
CONNECTION
314"
GARDEN
HOSE
(9
Figure
1
Check
for
Shipping Damage
Check the unit for any damage that may have occurred
in shipping. Not@ the carrier Immediately
if
there is
any damage.
Set Up
Before plugging in the unit, be sure the electrical service
matches the specification
in
Technical Data (inside
back cover) and the voltage label on the unit. With the
.
,
unit
off,
plug the power supply cord into a grounded,
GFCi-protected
outlet.
Do not remove the electrical
plug which comes with the unit or bend connecting
prongs to fit an improper outlet! Use an extension cord
that meets the requirements
of
the
EXTENS/ON
CORD
section and is no more than
100
fl(30
m) long. Added
length of cord will affect current draw of unit.
between the pump unloader and the high pressure
If you are using a downstream chemical injector, install it
hose, using the quick couplers provided.
Connect the high pressure hose between the pump
made with quick couplers.
outlet and the gun inlet. Both of these connections
are
CAUTION
and
-1
beused. Longer hoses may affect sprayer
Up
lo 100
ft
(30
m)
of
high
pressure hose may
chemical injector
performance, if used.
Install the appropriate spray tip on the wand. See
sandblaster kit, see its separate manual for installation
lnstaliing and Changing Spray
Tips.
If
you
are
using a
instructions.
Connect to Water Supply
CAUTION
Before attaching to the water supply, check your
local plumbing code regarding
cross-
connection
to
the water supply.
A
backilow preventer,
P/N
801
-1
33,
is available
to
prevent backflow of contaminated water Into
the fresh water supply. Install it upstream from
the pump.
Install a regulating water valve,
P/N
800-258,
if
inlet water pressure is over
€0
psi
(4.1
bar).
temperature.
Do
not exceed
160°
F
(70"
C) inlet water
Connect a hose with at least a
3/4
inch
(19
mm) ID
and
not longer than
50
fl(15
m)
to
the unit's
314
Inch garden
hose inlet.
NOTE
me water source at the unit
must
have a
minimum flowrate equal
to
that of the unit (see
Technical Data, inside back cover).
308-522 5
STARTUP
Always
use
this start up procedure
to
ensure that the unit
is started safely and properly.
1.
Check the oil level.
Pump: Add SAE
XI
or
30
weight non-detergent oil
as necessary.
I
2.
Tum on
the
water supply.
CAUTION
Never
run
the
unit dry. Costly damage
to
the
pump will result. Always be sure the water
supply
is
completely tumed on before
operating.
3.
Trigger the gun until water sprays from the tip
indicating that
the
air is purged from the system.
4.
Plug the electrical cord into proper, grounded,
GFCI-protected
outlet.
5.
ALWAYS
engage the gun’s trigger safety latch
whenever you stop spraying,
even
for a moment
to
reduce the risk of fluid injection or splashing in the
eyes or on the skin
if
the gun is bumped or triggered
accidentally.
6.
ALWAYS
observe
the following CAUTIONS to avoid
costly damage
to
the pressure washer.
CAUTION
DO
NOT
allow the pressure washer
to
idle for
more than
10
minutes. Doing
so
may cause
the
recircuiating water
lo
overheat and seriously
damage the pump. Tum
off
the pressure washer
if it will not
De
spraying or cleaning at least every
this time further.
10
minutes.
If
heated inlet water is used, reduce
DO
NOT
run the pump dry, which will quickly
fully tumed on before starting the pump.
damage the pump.
Be
sure the water supply is
DO
NOT
operate the pressure washer with the
inlet water screen removed. This screen helps
keep abrasive sediment
out
of the pump, which
could clog or scratch the pump, Keep this
screen clean.
DO
NOT
pump caustic materiais; such
materials may corrode the pump components.
7.
See
the chemical injector or sandblaster kit manual
for detailed cleaning information if these
accessories are used.
Trigger
Safety
Latch
WARNING
To reduce
the
risk of serious bodily injury,
including fluid injection, splashing in the eyes or
on the skin,
ALWAYS
engage the trigger safety
latch whenever spraying
stops,
even for a
moment.
In
the
engaged position, the trigger safety latch
prevents the gun from being triggered
accidentally by hand or if it is dropped or
bumped.
Be
sure the latch is pushed fully down
when engaging it or it cannot prevent the gun
from being triggered.
See
Figure
2.
TRIGGER SAFETY LATCH SHOWN ENGAGED
TRIGGER SAFETY LATCH
SHOWN
DISENGAGED
Figure
2
6
308-522
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