Graco Hydra-Clean 3245 Instructions- Operation manual

This manual contains IMPQRTAfflT
WARNINGS
and INOTRUCTIQMS
READ AND RETAIN FOR REFERENCE
Pressure Washer
P/N 800-066 SERIES A
3200 psi7220 bar) OPERATING PRESSURE
3400 psi (235 bar) MAXIMUM WORKINGPRESSURE
i
GRACQ IN@. P.Q. %QX I'M1 MUNNIEAPOLDS, MN 5544GV444
OCOPYRIGHT 1984 GRACO INC.

iNJECT!ON HAZARD
penetrate the skin andcauseextremelyserious
Fluids under high pressure from spray or leaks can
injury. including the need for amputation.
NEVER point the spray gun at anyone or any partof
the body.
NEVER put hand or fingers over the spray tip.
NEVER try to stop or deflect leaks with your hand or
body.
ALWAYS have the tip guard in placewhenspraying.
MAED!CAL KREWKLWENK
If any fluid appears topenetrate
EMERGENCY MEDICAL CARE AT ONCE.
DO NQT TREAT AS A SIMPLE CUT.
Tell the doctor exactly what fluid was injected. For
treatmentinstructionshave
your ductor call the
NATlONAL POISON CENTER NETWORK
(442)EBf-866$
AVOID CO@PONENK RUPTURE
Even after you shut offthegasoline engine, there is
high pressure
in the pump, hose and gun until you
release
it by triggering the gun. So before removing'
thespray tip orservicing the unit,
always shutoffthe
unit
and triggertheguntorelease pressure. ' .
Be sure that .ailaccessory itemsandsystem
NEVER exceedthe pressure ratingof any component
components
will withstand thepressuredeveloped.
in system. NEVER alter or modify equipment-your
personal safety,
as well as the functionofthe
equipment,.isat stake. Maximum working pressure
3400 PSI (235 bar).
conditions
caused by traffic, sharp corners, pinching or
Before eachuse, check hosefor weak, wornor damaged
kinking.Tighten
all fluid connectionssecurelybefore
each use. Replace any damaged hose.
with Buna-N and WC or neoprene cover of hose.
Do notusechemicals or agentswhichare not compatible
Do"not leaveapressurized unitunattended. Shut
off the
unit and release Dressurebefore.leavina.
FIRE
DO not spray flammable liquids. Do not operate the
present.
engine wherecombustiblefumesor:dust may
be
GAS ENGINE ~~E~A~~~~~~
NEVER fill fuel tank while engine is running or hot.
Avoidthepossibility of spilledfuel causing a fire.
Always refuel slowly toavoid spillage.
,:NEVER operate engine in a closedbuilding unlessthe
exhaust is pipedoutside. The exhaustcontains
carbonmonoxide, apoisonous, odorlessandinvisible
gas, which, if breathed, maycause serious illness
or
possibly death.
NEVER make adjustments on machinery while it is
connected tothe engine; first remove the ignition
cable fromthe spark plug.Turning over the
machinery by handduring adjusting or cleaning
might start theengineandmachinery,causing
serious injury to
the operator.
NEVER run the engine with governor disconnected,
or operate at speeds
in excess of 3600 RPM load.
Precautionis thebest insurance against anaccident.
When starting the engine, maintain
a safe distance
from moving parts of the equipment.
GENERAL
NEVER runtheunit with thebeltguard removed.
Keep clear of moving parts when the unit is running.
Observedetergentm.anufacturer'ssafety
precautions. Avoidgetting detergent or other liquids
inyour eyes.
Follow the directions on the container
regarding contact'with eyes.nose, and skin,
breathingfumes, etc. Alwayswear full goggles to
protectyour eyesfrom thespray aswell as anydebris
dislodged by thespray.
If necessary, wear gloves or
otherprotectiveclothing. If antidotes or treatment
are recommended,'be prepared to use them.
I
DON'T spray toxic chemicals such as insecticide or
weed killer.
I
IMPORTANT
These standards - particularly theGeneralStandards, Part 1910, andtheConstruction Standards, Part 1926-
UnitedStates Government safety standards have been adopted under the Occupational Safety and HealthAct.
should be consulted
in connection with your use of airless spray equipment,
2 801-644

FUEL LINE I roN'oFFSW'TcH r-CHOKE RING
the unit.
Refer to the engine instructionbooklet providedwith
Install Hose and Spray
Gun
Connect the spray hose to thespraygun by inserting
the pin at theend of the hose intothe quick
the fluid outlet in the same way.
disconnect coupler on the gun.Connect the hose
to
Cleaning Accessories
For spraying detergent or other cleaning solution, we
recommend using
a chemicalinjectorkit. See
Accessoriesand instructionmanual
801-645 for
installation and operation.
. .. For removingrustandoldpaintwerecommendusing
..
.. a water sandblaster. SeeAccessoriesand instruction
." manual,801 -646 for installation and operation.
~.
Connect To Water Supply
CAUTION
Before attaching to water supply, check local
water supply.
plumbing code regardingcross-connectionto
pump
in a direct supply system.
Do not exceed 160°F (70°C) water temperature to
Connect
a hose with at least a 314 in: (19 mm) ID
fromyourcitywatersupply tothe unit's 3/4 in.
garden hose threaded inlet.
The supply hose should
not be more than
50 ft. (15 m) long.
NOTE: For a directsupply system. your water
source
at the unit must have a flow rateof
AT LEAST 5 GPM (19 LITER/MIN).
-
contact ourCustomerServiceDepartment for
If your operating conditionsaredifferent fromabove.
assistance.
801-644
3

startup
Beforestarting, be sureto readthesafetywarningsand
setup instructions.
Check the oil and gasoline levels.
Turn on the watersupply.
Trigger the gun.
Open the by-pass valve located on thepump.
Open vent onfuel iankcap. Connenfuel linefromtank
to engine fuel coupling. Prime gas line by squeezing
to the start position.
bulb
in line three to fivetimes. Advance throttle control
Turn
ON/OFF switch (located under theengine air
cleaner) to the
ON position. Grasp the starter cord
the unit, pullthe cord rapidly out
two or three feet.
handle, put your foot on the frameor wheel to steady
Repeat if necessary withthe choke ringpulled out.
When engine fires and beginsto run, push chokering
back in. Close by-pass valve on pump.
the pumpwill result. Always besurewatersupply
is comoletelvturned onbefore ooeratina.
~ ~~ ~ ~ ~~~~ ~~ ~~ ~~
Inspect all connectionsfor any leaks. Tighten if
necessary.
Cleaning
For Hydra-Clean technique, see the Chemical Injector
manual,
801-645.
Forabrasive cleaning, see the WaterSandblaster
manual,
801 -646. '
1. Shut off the cleaning unitand triggerthe gun to
relieve pressure. Engage the trigger safety.
2. Keep the nozzleandthetubepointedawayfrom
you and everyone else.
3.
Do not putyour hand over the tip to push the
keep your fingers away from thetip.
nozzle into place.Grasp it from the sideand
4. Do not let anyoneelse touch thesprayvalve
while you are cleaning nozzles.
5. Be sure the slip ring ispushed forward to lock
the nozzle in place before triggering the spray
When unit is not in use, turn
,off water supply.
Shutdown and Care
Of Unit
When shutting down for the day or weekend, shut off
unit, shut off watersupply valve, and triggergun to
relearnpressure. Wipe
off the unit with a damp rag.
I cAUT1oNl
Shut off cleaning unit whennot actuallyspraying,
for longerpumplife.
The pump will overheat if left
runningfor over
10 minutes withoutspraying.
Check the filter screen in thewater inletconnection as
with the inlet and filter screen removed,
often
as necessary, at least daily. Do notoperate theunit
DO NOT try to adjust the unloadervalve. Changing
thesetting may
cause^ excessive'pressure,
intermittent unloader operation and increased wear
on parts and will void the warranty.
water prior to exposure to freezing temperatures. Use
PUMP
MUST NOT BE RUN DRY and mustbe drained of
and Store the unitwhere
it will not besubjected to
freezing temperatures.
If water does freeze inthe unit,
thaw before trying to start. A
50% anti-freeze solution
may be pumped prior to cold weather storage.
excessive cycling and wear of the unloader valve. See
Use only spraytipsthat are matchedtothe unitto avoid
ACCESSORIES.
CAUTION
pour hot water on a frozenpump. A sudden
Let
a frozenpump thaw in a warm place.Don't
temperaturechangemaycrack
the ceramic
plungers.
Do not pump caustic materials.
Before extended storage,flush the pump with light oil.
Avoid dragging hose over an abrasive surface such as
cement.
This causes excessive wear and shorter hose
life.
Clean the intake line strainer daily.
Lubrication and Care
tion. Drain oil with engine warm. Engine requires
3
Change the engine oil afterevery 100 hoursofopera-
pints
(1.4 liters)30Woil. See separate instruction
manual for maintenance procedures.
Fill pump crankcasetodot on oilgaugewindow with
34 02. (1 .O liters) of crankcase oil (part no. 801 -1 44)
or equivalentSAE 40 weight hydraulic oil with anti-
wear and rust inhibitor additives. Change initial
fill
after 50 hourrunningperiod. Change oil every 3
months or at 500 hour intervals.
stment or mo
Altering or adjusting unloader
will not increase
performance of unir.
aualifiedservice oersonnel.
Serviceof the unloader must
be performedonlyby
4 801-644
. ..~.

PROBLEM
En ine Will Not Start
Oraard
To Start.
Engine Misses Or Lacks
Power
Low Pressure
'ump runs extremelyrough,
xessure low.
Nater kaka
e from under
he manifold!
Nater in pump crankcase.
~~
:requent orprematurefailure
)f the packmg.
;trong surging at the inlet
ischarge side.
nd low pressure
on the
"
!
"
I
I
"
1
I
I
I
I
\
I
t
I
\
I
f
t
I
I/
1
c
I
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u
"
-
C
C
n
-
!C
C
'C
P
b
E
tl
P
C
R
d,
F
a
-
L
CAUSE
No gasoline in fuel tank or
carburetor.
Water in gasoline or old fuel.
Choked improperly.Flooded
engine.
Dirty carburetor
air filter.
Spark plug dirty or improper
Spray gun closed.
Partially plugged
air filter.
Spark'plug dirty, wrong gap,
3r wrong type.
Incorrect ignition tithing.
JVorn nozzle.
Jelt slippage.
4ir leak
in inlet plumbing.
%lief valve stuck, partially
,lugged or improperly
adjusted; valve seat worn.
mproper
size.
nlet suction strainer clogged 01
aorn packin Abrasives in
lumped fluijor severe cavita-
:ion. Inadequate water supply.
=oulsd or dirty inletor discharge
ralves.
Norn inlet or discharge valves.
.eaky discharge hose
iestricted inlet
or air entering
he inlet plumbing.
nlet restrictions and/or air
eaks. Stuck inlet or discharge
malve.
.eakingH.P. seals.
Vorn packing.
Aay be caused by humid,air
ondensing into water lnslde the
rankcase.
;cored plungers.
her pressure to inlet manifold.
lamaged or worn plungers.
rbrasive material in the fluid
eing pumped.
ixcessive pressure and/or
?mperatureof fluid being
umped.
lver pressure of pumps.
:unning pumpdry.
oreign particles in the inlet or
ischarge valve, or worn inlet
nd/or discharge valves.
gap.
valve.
Fill the tank with gasoline, open fuel shut-off
Check fuel line and carburetor.
and dry
suark ulug.
Drain fueltank and carburetor. Use new fuel
..
Openchoke and crank engine several timesto
clearoutthe gas.
I
.-
.
Remove and clean.
Clean, adjust thegap or replace.
Clean, adjust thegap, or replace.
Time engine.
Remove
and clean.
Replace with nozzle of proper size.
Tighten or replace; usecorrectbeltsandreplace
both
at same time.
Disassemble, reseal, and.reassemble.
Clean. and adjust reliefvalve; check for worr
and dirty valve seats.
Kit available.
frequently.
Clean. Use adequate size. Check more
Install proper filter.Check flow availableto
pump.
Clean inlet and dischargevalve assemblies.
discharae hose.
Replace worn valves, valve seats and/or
sea?
Pro er size inlet plumbing; check for air tight
Cleanout foreign material, replacewornvalves.
Reolace seals.
Install newpacking.
Change oilat
3 month or 500 Hour intervalsusing
CrankcaseOil(otherap rovedoileverymonthor
200 hours)P.N. 801-f44.
Replace plungers.
Reduce inlet pressure.
Replace plungers.
Install properfiltration
on pump inletplumbing.
Check pressuresand fluidinlet temperature; be
jure they are within speclfted range.
3educe pressure.
lo not run pump without water.
:heck for smooth lap surfaces
on inlet and
iischar e valve
seats. Discharge valve seats and
nlet va
9 ve seatsmaybe lappedon a veryflne 011
;tone.
I
801-644 5

6 801-644

REF.PART
NO.NO.DESCRIPTION
QTY DESCRIPTION QlV
REF. PART
NO.NO.
1800-130 GUN ASSEMBLY,seepans
32801-137 KEY, pulley
1 33' 800-083 GAS TANK ASSEMBLY, see
1
2 '801-640
TIP. 0005 MEG, 1 /4 thd.
3 '801-667TIP,'1505 MEG. 1/4 thd.
1
1
parts drawing/list page 8
34 '801-569 QUICKCOUPLE,male
1
4 800-059
PUMP ASSEMBLY,seepans 35 800-058 RAILSTIFFNER WELDMENT
2
drawing/list page 11136800-082 CHASSIS'WELDMENT
1
5 801-616
BELT,drive 237801-541 1
6 801-141
LABEL, warning 1 38 801-618 BELTGUARDCOVER
HANDLE
'. 1
7
. ,801-129 LABEL warning 139801-619 BELTGUARD BASE
1
8 801-543 DECAL Graco/Vangard 1 40 801-609 BRACKET, suppon
1
9 801-131 PLATE,serialno. 1 41 801-507 SPRING
.1
10 800-084
ENGINEASSEMBLY, 18 h.p.,see 42801-505 FOOTRETAINER
1
1
11 801-546
SCREW, hex, 318-16 x 1-1 /2" 4 44 801-550 WHEEL
1
12
801088 SCREW,hex, 5116-18x 1-1/2" 4 45 801-538 , AXLE
2
13801-302
SCREW,hex, 5/16-18 x 1" 8 46 801-504 FOOT
1
14 801-517
SCREbV. hex, 5/16-18 x 3" 1 48 801-539 BUMPER
1
15 801-589
SCREW,hex, 3/8-16 x 7" ,1 49 801-363 WASHER, lock, 3/8
1
16 801-559
SCREW,hex. M8 x 30 MM 450 . 801-537, WELDMENT;,legsupport
4
17801-547
BUSHING, mach., 3/4 2 51 +EO1-614 TIP, 2505 MEG.. 1/4 thd.
1
18 801-603
NIPPLE,hex. 3/8 x 3/8 NPT 152. '801-615 TIP, 4005 MEG, 1/4 thd.
1
19801-023
WASHER,flat. 1/4 2653 801-130 LABEL warning
1
20 801-015
WASHER,flat. 5/16 1
21801-139
WASHER, lock. 1/4 2
22 801-025
WASHER, lock, 5/1614 56 801-605 SCREW,hex, #lo-24 x 3/4 1
23*801-568
QUICKCOUPLE,male, 318 1 57 801-607 WASHER, lock, #lo
1
24 801.024 NUT,hex, 5/16-189 58 801-606 WASHER, flat, 3/16 1
25801-499
NUT,locking, 3/8-16 1 59 801-369 BUMPER
1
26 .801-020
NUT.locking, 1/2-13 2 60801 -612 WASHER,flat, 7/16 1
27801-546
GROMMET
2
28801-571
HOSE, H.P., 3/8 x 50 ft.
4
1 61 801-576
SPACER, beltguard ' '
62801 -090 QUICKCOUPLE,femalethd.
4
29
' 801-004 PULLEY,pump
4
1
30 801-617
PULLEY,engine
63 601-680 BUMPER,rubber '1
31801-376
HUB,pulley
1
'1
Order parts by nameandseries letter of theassembly for
which
you are ordering.
"Recommended
"tool box" spare parts.
drawing/list page
9
parts drawing/lin page 71 43 801-506 ' BOOT,leg
5
4
54801-132 . RIVET,drive
55 801-608 PIN,roll
..
PARTS DRAWING
Engine Assembly,
800-084
f2
PARTS LIST
Engine Assembly, 800-084
REF. PART
NO.
NO.
1 801-626
DESCRIPTION
ENGINE.
16 H.P.
QN
1
2. 801-719 HEATSHIELD EXTENSION . ' 1
4 801-626 SWITCH
3801-585 THROTTLECONTROL 1
1
5801-627
BRACKET.switch
6801-635 FUELBRACKET
1
7801-634
(1UICKCOUPLE
.' 1
1
6 601,-629 FUELLINE 1
Orderparts by name andseries letter of the assemblyfor
which
you are ordering.
..
.
I
801-644 7

PARTS DRAWING
Gas Tank Assembly,
PARTS LIST
Gas Tank Assembly,
800-083
REF. PART
NO. NO. DESCRIPTION
1801-577 TANK, gas
QTY
2801-578 CAP
1
3801-579 FUELLINE KIT 1
1
Order parts by name and series letter of the assembly for
which
you are ordering,
1
PARTS DRAWING
Unloader Assembly,
800-1 22
3000 PSI (207 bar)Max.
,
/
i
4
3
2
13
PARTS LIST
Unloader Assembly,
800-1 22
REF. PART
NO. NO.
2801-045
1 800-044
3801-046
4801-047
5801-048
7 801-050
6
801-049
9 801-059
8 800-123
11 801-432
10
' 801-412
13 801-063
12 801-062
15 601-069
14 801-068
DESCRIPTION
SLEEVE ASSEMBLY
QTY
CAGE, valve
1
1
O-RING
SPRING 2
1
BALL
SEAT 1
1
O-RING2 UNLOADER SUB-ASSEMBLY
O-RING 1
1
.HOUSING1 CYLINDER 1
O-RING
1
PLUG
HOUSINGVALVE 2
SPRING
1
1
16 801-070 VALVE
17 801-071
SEAT
18 801-465 ~ SCREW, button hd.
#6-32 NC x 5/16'
1
1
2
Orderparts by name and series letter of the assembly for
which you are ordering.
8 801-644

NOTE Hose,Quick Couplers
with Gun Assembly -See
& Spray Tips not included
Pressure Washer Assembly
Parts Drawing/List. page
6. 7.
\
SERVICE
Gun, Cartridge Replacement
1. Press accesspin (1 4) from gun handle andremove
access plate
(16) byslidingplatebackwards.
Remove cartridge
(5) from housing (6) by using a
19 mm socket wrench.
2. Check inside housing to be sure all O-rings came
out when cartridge wasremoved. If O-ring can be
seen inside the housing, remove
it, being careful
not to damage internal threads in housing.
3. Throw away oldcartridgeand install newcartridge
using
a small amount of pipe sealant on threads.
....
.~.>'
.. Besuretotightencartridgefirmlyagainsthousing.
4. Slideaccess plate intoplaceand installaccesspin.
PARTS LIST
Gun Assembly,
800-130
REF. PART
NO. NO.
2 801-674
1801-134
3801-009
4 801438
6 801-671
5801-639
7801-670
8 801-256
10
801-426
9801-424
11 801-425
12801-672
13801-673
15801-419
14 801-428
16801-427
17801-420
18 801-423
19 '801-202
DESCRIPTION
TUBE, 32
GRIP
1
1
COUPLER, femalequi& dimnned 1
SPRAYGUN,
(replaceable
parts includeitems 5-18)
. CARTRIDGE 1
1
. HWPLUG
. HOUSING 1
. TRIGGERPIN 1
1
. TRIGGER
. LATCHPIN
1
1
. SAFETYLATCH 1
. OUTLET
. PINCOVER '2
1
. ACCESSPIN 1
. HANDLE 1
am
. ACCESSPLATE 1
. TUBE 1
. INLETFITTING 1
O-RING, quickcouple 1
which you are ordering.
Order parts by name andseries letter of the assembly for
*Recommended "tool box" spare parts.
801-644 9

SERVICE
pump (Refer to Parts drawing, Page 11)
NOTE: Twosizes of metric wrenchesarenecessary
for servicing the pump;
M13 and M30.
Valves:
1. Removethe hexplug(5)from manifold(6)using
M30
wrench.
2. Examine O-ring
(4) under plug and replaceif cuts or
distortion exist.
3. Remove valve unit and O-ring
(3) from cavity
NOTE: Valve unit may comeapartduringremoval.
4. Replace valve unit with P/N 801 -472.
5. Replace hexplug and torqueto75ft. lbs.(10.3 Wm).
NOTE: Hex plug .should be re-torqued after 5
. ~ hours operation.
Pumping Section:
1, Remove the eight cap screws (1)from the manifold
using the M13 wrench.
2. Carefully separatethe manifoldfrom
the crankcase.
NOTE: It may be necessary to tap manifoldlightly
with mallet to loosen.
CAUTION
Keep manifold properlyaligned witli ceramic
plungers whenremoving to avoiddamage to
plungers or seals.
3. Carefully examine each plunger(1 6) for anyscoring
and replace if necessary.
Servicing Plungers:
1. Loosen plungerretaining screw(l.2)5-6turns,using
"10 wrench. Pushplungertowardscrankcase.
This
will separate plunger and retaining screw.
2. Remove retaining screw fromplunger and examine
O-ring (18). back-up ring
(17), andcopper
bearing/gasket washer(13). Replace if necessary
using plunger repair kit P/N 801474.
3. Remove plunger from plunger rod and remove
copper flinger
(1 5). Cleanor replace if necessary.
4. Lightly grease flinger and replace it
on plunger rod.
5. Replace plunger
6. Lightly grease retaining screwassembly to avoid
cutting O-ring. tightly grease outer end
'of plunger,
7. Install retaining screw assembly into plungerand
torque to 14.4
ft. Ibs. (2 K/m).
8. Lubricate each plunger and carefully slide manifold
onto crankcase.
9. Replace theeight capscrewsand snugthem up.
Torque to 21.7
ft. Ibs. (3 Wm).
. .NOTE: The eight capscrews must be torqued
evenly to applyequalpressure on-the
manifold
so that it seatsproperlyand
doesn't bind or jam. This is best done by
torquing bolts closest to the center of the
those bolts.
manifold first and then working out from
Servicing V-Packings:
NOTE Use packing repair kit P/N 801 -486.
1. After removing the eight capscrewsand the
!
manifoldcarefully pullpackingretainer(19)fromthe
manifold.ExamineO-ring
(10) andreplace if
necessary.
2. Remove low pressure packing (8) and head ring (7).
3. Pull intermediate retainer ring (20) from manifold.
and head ring (7).
Remove long life ring
(9). high pressure packing(8)
4. lnvpecr all partsand replace if necessary.
NOTE: Ifjust the packings are needed use kit 801 -
486. If ringsor retainersneed replacement
use kit
801 -487.
5. Thoroughly clean packing cavity in manifold and
examine. Lightly grease packing cavity.
6. Replacepackingassembly in the following order:
head ring (7).packing (8). long lifering (9).
packing retainer (19).and O-ring (10).
intermediate ring
(20). head ring (7). packing (8).
CAUTION
Carefully studythe location of each part and the
and operation.
positionof the seals to assure proper reassembly
7. Lubricate each plunger and carefully slidemanifold
onto crankcase.
NOTE: When replacing the manifold onto
exercised to avoid damage to the seals.
plungers,extremecautionshould be
8. Replace the eightcapscrews in the manifold and
tighten
as previously described(step 9 under
servicing plungers).
10 801-644

PARTS DRAWING
UNLOADER ASSEMBLY
PACKING.& RETAINER
(Three kits needed
for entire pump.)
KIT 801 -487
PLUNGERREPAIR
Includes:
KIT 801 -474
REF.
Includes:
NO. QTY.
801 -473 801 -486 NO. am. 8 2
Includes:Includes: 12 .3 9 1
REF.
NO. an. . NO.
13
an. 17 3 10
1
11 3 8 6 18 3 19
3
1
20 1
REF.
PARTS LIST
Pump Assembly,
800-059
REF.PARTREF. PART
NO.NO.DESCRIPTION QN DESCRIPTION QTY
1801-468
NO.NO.
SCREW, M8 x 70 mm
2 801-469
8
WASHER
22 801-482 CAP, 1/2NPT
8 23 801483 WASHER 1
1
4801-470
3801-472VALVEUNIT
6
O-RING 6
24 801-485 WASHER
25801-107
1
5801-648 NIPPLE,
hex, 3/8 x 1/2
HEXPLUG.M24x2x16 1
6 801-647 . MANIFOLD
6 26 801-523 NIPPLE, hex, 1/2 NPT x 2" 1
7801-479
1 27801-620 ELBOW. 1/4 NPT
HEADRING 1
8 801-478
6 28 801-621 . ELBOW, 1/4 x 1/2 NPT 1
PACKING
9801-481
6. 29801-622 CROSS. 1/2 NPT
LONGLIFERING
1
10 801-476O-RING 3 30 801-110 HOSEADAPTER
1
11 801-777 3
OIL SEAL 31801-111HOSEC0NN:NUT
3
. 32801-112INLETSCREEN 1
12 801-493PLUNGERRETAININGSCREW 33801-597 HOSE,
low pressure 1
1'
13 801-492
3
BEARING/GASKET WASHER
14 801-475 3 34
801 -623HOSE, low pressure
OIL DIPSTICK 1
15801-489 135801-41
6 NIPPLE, 318 NPT x 314 NPT
FLINGER
1
16 801-490 336 801
-625 VALVE, by-pass
PLUNGER 1
17801-491 337800-122 UNLOADERASSEMBLY,
see
BACK-UP RING
18 801-488 3
. . partsdrawing/listpage 8
O-RING 1
19801-477 PACKINGRETAINER 338801-568 QUICKCOUPLE,
male, 3/8
3
1
39801-526 TENSIONER, belt
20 801-480INTERMEDIATERING
2
21 801-484 CAP; 3/8 NPT 3 40 801-624 PUMP
1 Order parts by name and series letter of the assemblj. for
1
which you are ordering.
801-644 11

ACCESSORIES (Must be purchased separately)
CHEMICAL INJECTOR KIT 800-117
For injecting harsh cleaning chemicals downstream
WATER SANDBLASTER 800-120
For abrasive cleaning of stubborndirtand paint.
from pump. Spray tipnotincludedinkit.
BACK FLOW PREVENTOR 801-133 SANDBLASTERSPRAYTIP 801-667
supply. Install upstream frompump.
Preventback-up of contaminatedwaterintofresh
TECHNICAL DATA
ENGINE
GASOLINETANK
WATER PUMP
WE'ITEDPARTS:
UNIT WEIGHT:
OVERALL DIMENSION:
MAX. WATER TEMPERATURE:
INLET HOSE CONNECTION:
BRIGGS & STRAlTON
4 cycle, two cylinder. air
cooled, 18 hp
capacity
3 gallon (11.36 liter)
pressure: 4.4 GPM
9200 PSI (220 bar) max.
(1 6.5 liter/min).
Stainless Steel, Aluminum,
Phenolic Plastic, Ceramic
Liners, Nitrile Rubber.
244 Ib (111 kg)
Width: 710 mm
Length: 810 mm
Height: 650 mm
1 60° (70° C)
314" garden hose (f)
THE GRACO WARRANTY
GracoInc.warrantsallequipmentmanufacturedbyitandbearingi1snametobefreefromdefectsin
purchaserforaperiodof 12monthsfromthedateofpurchaseandappliesonlywhentheequipment
material and workmanship under normal use and seivice.This warranty extends to the original
is installedand operated inaccordancewith written factoryrecommendations.This warrantydoes
not cover damage or wear which, in the reasonable judgment of Graco. arises from misuse.
abrasion, corrosion. negligence, accident. Substitution of non-Graco pans, faulty installation or
tampering.
This warranly isconditioned upon theprepaid return of the equipment claimed to be defective for
examinationby Graco to verify the claimeddefect. If theclaimeddefect isverified. Gracowillrepair
or replace free of charge. anydefectiveparts. The equipment will be returned IO theoriginal
purchaser transporlation prepaid. If inspection of the equipment does not disclose any defect in
workmanshtp or material, repairs will bemadeatareasonablechargeandreturn transportationwill
be charged.
PARTlCUlnk PURPOSE AND OF ANY NON-CONTI
~~~~ " ". ...... .... . _.
EQUIPMENTNOTCOVERED BY GRACOWARRANTY. Accessories or components of equipment
soldbyGracothat are not manufacturedbyGraco(Such aselectric motors. Switches.hose,etc.)are
subject to thewarranty. if any. of their manufacturer.Gracowill providepurchaserwith reasonable
assistance in making suchclaims.
Factory Branches: Atlanta, Dallas. Detroit, Los Angeles. West Caldwell (N.J.1
Subsidiaryand AffUlete Companies: Canada: England: Switzerland France: German": Hona Kona: Janan
-
GRACQ INC. P.O. BOX '1441 MINNEAPOLIS. MN 5544o-nm
PRINTED IN U.S.A. 801"4 6/&1 (Rev. 8/84) 45-10061 REV D