Graco Inc Hydra-Clean 308-517 User Manual

INSTRUCTIONS-PARTS LIST

This manual contains IMPORTAAE(T
WARNINGS and lNSTRUCTlONS

READ AND RETAIN FOR REFERENCE

HYDRA-CLEAN @ 826,1235
Pressure Washers

HYDRA-CLEAN 826
Model 800-232, Series B

800 psi (55 bar) OPERATING PRESSURE
1100 psi (76 bar) MAXIMUM WORKING PRESSURE

HYDRA-CLEAN 1235

Model 800-233, Series A
1200 psi (82 bar) OPERATING PRESSURE

7500

psi

(703 bar) MAX/MUM WORKING PRESSURE

@ 308-517

G

QRACO

Rev

A

Supersedes
602-776.802-777

GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1441

~DCOPYRIGHT 1990, GRACO INC.

HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY

FOR PROFESSIONAL USE ONLY OBSERVE ALL WARNINGS.

Read and understand all instruction manuals before operating equipment.

FLUID INJECTION HAZARD

WARNING

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 the need for amputation. Also, fluid injected or
splashed into the eyes or on the skin can cause serious
damage.

NEVER

pan of the body.
spray tip.

ALWAYS

cleaning or servicing any part of the sprayer.

NEVER

body.

Be sure equipment safety devices are operating

properly before each use.

point the spray gun or wand at anyone or at any

NEVER

follow the

try to stop or deflect leaks with your hand or

put hand or fingers over the

Pressure Relief Procedure, before

Medical Treatment

If any fluid appears to penetrate your skin, qet

EMERGENCVMEDlCALTREATMENTATONCE.DO
NOT TREAT AS A SIMPLE CUT.

what fluid was injected.

Tell the doctor exactly

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.

Disconnect the electrical supply.

3.

4.

Shut off the water supply.

Disengage the trigger safety latch and trigger the

5.
gun to relieve pressure, and then engage the trigger
safety latch again.

Before long-term (overnight) storage, disconnect

6.
the water supply and disconnect the electricity.

Spray Gun Safety Devices

Be sure all gun safety devices are operating properly
before each use. Do not remove or modify any pan of

the gun; this can cause a malfunction and result in

serious bodily injury.

NOTE TO PHYSICIAN: Injection in the skin is a
ffaumafic injury. It is important to treat the injury
surgically as soon as possible. Do not delay
treatment to research toxicity. Toxicity is a
concern with some exotic coatings injected

directly into the bloodstream. Consultation with a
plastic surgeon or reconstructive hand surgeon
may be advisable.

SAFER LATCH: Whenever you stop spraying for a
moment, always set the gun safety latch in the engaged
or “safe” position, making the gun inoperative. Failure to
properly set the safety latch can result in accidental
triggering of the gun.

SPRAY TIP SAFETY: Use extreme caution when
cleaning or changing spray tips. If a spray tip clogs
while spraying,
immediately. ALWAYS follow the

Procedure

and then remove the spray tip to clean it.

engage the gun safety latch

Pressure Reiief

2

308-517

GROUNDING INSTRUCTIONS

This product must be grounded. If it should malfunction

or break down, grounding provides a path of least
resistance for electric current 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.

I DANGER

Improper connection of the equipment- grounding
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 modify the plug
provided with the product - if it will not fit the outlet,
have a proper outlet installed by a qualified

GROUND FAULT CIRCUIT INTERRUPTER PROTECTION (826)

The 826 pressure washer is provided with a
ground-fault circuit-interrupter (GFCI) built into the

power supply cord. This device provides additional
protection from the risk of electric shock. Should
replacement of the cord become necessary, use only
identical replacement parts that include GFCI
protection.

DO NOT use the switch on the GFCI cord to start
the unit. This may cause premature failure of the

GFCI.

ALWAYS

before resetting the GFCI.

turn the machine off at the switch

GROUND FAULT CIRCUIT INTERRUPTER PROTECTION (1235)

To comply with me National Electrical Code (NFPA 70)

and to provide additional protection from the risk of

electric shock, connect the 1235 pressure washer to a

receptacle that is protected by a ground-fault
circuit-interrupter (GFCI).

CAUTION

EXTENSION CORDS

Use only 3-wire extension cords that have 3-prong
grounding-type plugs and 3-pole cord connectors that
accept the plug from the product. Use only extension
cords that are intended for outdoor use. These
extension cords are identified by a marking “Acceptable
for use with outdoor appliances; store indoors while not

in use.” Use only extension cords having an electrical
rating not less than the rating of the product. Do not use
damaged extension cords. Examine extension cord
before using and replace if damaged. Do not abuse
extension cord and do not yank or pull on any cord to

disconnect. Keep cord away from heat and sharp
edges. Always disconnect the extension cord from the
receptacle before disconnecting the product from the
extension cord.

I- WARNING -1

To reduce the risk of electrocution, keep all
connections dry and off the ground. Do not touch
plug with wet hands.

308-517 3

General Safety

Any misuse of the pressure washer or accessories,

such as overpressurizing, modifying parts, using
incompatible chemicals and fluids, or using worn or
damaged parts, can cause them to rupture and result in

fluid injection, splashing in the eyes or on the skin, or

other serious bodily injury, fire, explosion or property
damage.

NEVER

so could cause it to malfunction.

CHECK

replace worn or damaged parts immediately.

ALWAYS

clothing. If using a chemical injector, read and follow the
chemical
recommendations on additional protective equipment,
such as a respirator.

alter or modify any part of this equipment; doing

all spray equipment regularly and repair or

wear protective eyewear and appropriate

manufacturer’s

literature for

HOSE SAFETY

System Pressure

This sprayer can develop high operating pressure. Be

sure that all spray equipment and accessories are rated

to withstand the maximum working pressure of this

sprayer. DO
pressure of
system.

NOT

exceed the maximum working

any

component or accessory used in the

Chemical Compatibility
BE SURE

injector are compatible with the wetted parts of the
hose, gun, wand and tip, as given in the Technical Data
(inside back cover). Always read the chemical
manufacturer’s literature before using any chemical in

this pressure washer.

that all chemicals used in the chemical

High pressure fluid in the hoses can be very dangerous.
If the hose develops a leak, split or rupture due to any
kind of wear, damage or misuse, the high pressure
spray emitted from it can cause a fluid injection injury or
other serious bodily injury or property damage.

ALL FLUID HOSES MUST HAVE STRAIN RELlEFS 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.

TIGHTEN

use. High pressure fluid can dislodge a loose coupling
or allow high pressure spray to be emitted from the
coupling.

all fluid connections securely before each

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers or other
body parts.
or operating the pressure washer.

NEVER

and interlocks installed and functioning. Follow the

KEEP CLEAR

operate the pressure washer without all guards

of moving parts when starting

NEVER

entire hose for cuts, leaks, abrasion, bulging cover, or
damage or movement of the hose couplings. If any of
these conditions exist, replace the hose immediately.
DO
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 with the inner tube

and cover of the hose. DO

temperatures above 200” F (93” C) or below -40” F

(-40” C).

Pressure Relief Procedure

servicing the pressure washer to prevent discharging
high pressure fluid from the gun.

use a damaged hose. Before each use, check

NOT

try to recouple high pressure hose or mend it

NOT

expose Grace hose to

before checking or

4

308-517

WARNING

conditions that could cause bodily injury.

NOTE:

or

DANGER: Alerts

Identifies helpful procedures and information.

user to avoid or correct

CAUTION:

that could cause damage to or destruction of

equipment.

Alerts user to avoid of correct conditions

IMPORTANT

United States Government safety standards have been adopted under the Occupational Safety and Health Act. These
standards-particularly the General Standards, Part 1910, and the Construction Standards, Part 1926-should be
consulted.

308-517 5

PUMP OIL LEVEL

INDICATOR

WINDOW

CHEMICAL

STORAGE TRAY

\

ADJUSTABLE

/ NOZZLE

SPRAY

GUN

QUICK

COUPLER \ ,

MOTOR

SWITCH

I

’ TWO CHEMICAL

SELECTOR VALVE

CHEMICAL

METERING VALVE

Check for Shipping Damage

Check the unit for any damage that may have occurred
in shipping. Note any damage and

notify the carrier

immediately.

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 EXTENSlON CORD

section and is no more than 100 ft (30 m) long. Added

length of cord will affect current draw of unit.

Connect the high pressure hose between the pump

outlet and the gun inlet.

CAUTION

Up to 100 ft (30 m) of high pressure hose may
be used. Longer hoses may affect sprayer
performance, and chemical injector performance.

r-

HIGH PRESSURE

SPRAY

Connect to Water Supply

CAUTION

Before attaching to the water supply, check your
local plumbing code regarding cross- connection

to the water supply.

A backflow preventer P/N 801-133 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 60 psi (4.1 bar).

Do not exceed 160” F (70” C) inlet water

temperature.

Connect a hose with at least a 3/4 inch (19 mm) ID and
not longer than 50 ft (15 m) to the unit’s 3/4 inch garden
hose inlet.

NOTE:

The water source at the unit must have a
minimum flow rate equal to that of the unit (see
Technical Data, inside back cover).

6 308-517

Use this procedure whenever starting the pressure

washer to help insure that the unit is ready to operate

and starting is done safely.

1. Check the oil level.

Pump: Add SAE 20 or 30 weight non-detergent oil
as necessary.

Chemical Injector

BE

SURE

injector are compatible with the wetted parts of the
hose, gun, wand and tip, as given in the Technical Data
(inside back cover). Always read the chemical
manufacturer’s literature before using any chemical in

this pressure washer.

that all chemicals used in the chemical

2. Turn on the water supply.

Never run the unit dry. Costly damage to the pump
WIII result. Always be sure the water supply IS
completely turned on before operating.

c

Trigger the gun until water sprays from the tip

3.

indicating that the air is purged from the system.

Plug the electrical cord into a proper, grounded,

4.

GFCI-protected outlet.

ALWAYS engage the gun’s trigger safety latch

5.

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.

Most pressure washer spraying is done at full

6.

pressure. On this pressure washer, there is an
adjustable unloader valve that permits operation at
less than maximum pressure. To reduce pressure,

for special cleaning applications, turn the pressure

control knob on the unloader counterclockwise, as
needed.

ALWAYS observe the following CAUTIONS to avoid

7

costly damage to the pressure washer.

CAUTION

DO NOTallow the pressure washer to idle for more
than 10 minutes. Doing so may cause the

recirculating water to overheat and seriously
damage the pump. Turn off the pressure washer if it
will not be spraying or cleaning at least every 10
minutes. If heated inlet water is used, reduce this
time further.

DO

NOT

run the pump dry, which will quickly
damage the pump. Be sure the water supply is
fully turned on before starting the pump.

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.

pEptlz%LzTq

precautrons regardtng use of goggles, protective

A downstream chemical injector is provided with the
pressure washer. There is a three position selector valve
for no chemical (off), chemical 1 or chemical 2.
Chemical 1 and chemical 2 cannot be applied
simultaneously. There are also metering valves to
control the flowrate of each chemical. The chemical
adjustment knob on the injector under the hood should

be a full two turns counterclockwise from the closed
(clockwise) position. Insert each cherr cal filter
(attached with clear tubing to the chemica. metering

valves) into a container of chemical. Turnthe control ring

on the adjustable nozzle clockwise. This causes a drop
in pressure that actuates the chemical injector. Closing

the adjustable nozzle deactivates the chemical injector

and produces high pressure for rinsing.

WARNING

DO

NOT

attempt to open or close the adjustable

nozzle when the spray gun is in use. Be sure that

the trigger safety latch on the gun is in the “ON”

position before adjusting to avoid serious bodily
injury or fluid injection.

Check the distance that you will need to hold the spray
nozzle from the surface by test spraying on a scrap of

similar material. For soft surfaces, such as wood, hold
the nozzle about 3 ft (1 m) from the surface and gradually
bring it closer, checkingto see if the high pressure spray

is damaging the surface.

Mist wet the surface with cleaning solution. Let it soak
briefly, then use the high pressure rinse to “chisel” off
the soil. Keep the nozzle at an angle to the surface and

at a distance determined to be best for the surface. If

some soil remains, repeat the procedure, letting the

chemical soak a little longer. Stubborn soil can be

cleaned off better with a stronger, heated cleaning

solution.

Protect surfaces that might be damaged by the cleaning

solution or the high pressure spray. Rinse the solution

before it dries.

DO

NOT

pump caustic materials; such materials

may corrode the pump components.

308-517 7

Trigger Safety Latch

WARNING

To reduce the risk of serious bodily injury,

including fluid injection, splashing in the eyes or

on the skin,

latch whenever spraying stops, even for a
moment.

r

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

ALWAYS

ENGAGED

engage the trigger safety

\

\

\

SHUTDOWN, FLUSHING AND
STORAGE

WARNING

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 pan 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 gun to relieve pressure, and then engage
the trigger safety latch again.

6. Before long-term (overnight) storage,
disconnect the water supply and disconnect

the electricity.

1. If the pressure washer will be exposed to freezing
temperatures, drain all water out of the pump. If it
must be stored in freezing temperatures, flush the
unit with a 50% anti-freeze solution. Relieve

pressure. Flush the pressure washer before using it
again to remove the anti-freeze.

TRIGGER SAFETY

LATCH SHOWN

DISENGAGED

Figure 2

MAINTENANCE

Observing regular maintenance intervals helps ensure
that you get maximum performance and life from the
pressure washer.

There is a break-in period for the pump. After changing
the oil initially, the interval between required changes is

longer.

WARNING

To reduce the risk of serious bodily injury,

including fluid injection, splashing in the eyes or
on the skin or injury from moving parts, always

follow the

before proceeding.

r

Pressure Relief Procedure Warning

t

NOTE:

2. After each use, wipe all surfaces of the pressure

3. Perform the appropriate maintenance. See the

I Interval

Daily

I

Each 500 hours Change pump oil. Use SAE 20 or
of operation or
6 months

I

An anti-freeze flush kit P/N 802-327 is
available to make flushing easier.

washer with a clean, damp cloth.

maintenance chart.

1 What to do

Clean water inlet screen and
filter. Check pump oil level. Fill
as necessarv

Change pump break-in oil. Use
SAE 20 or 30 non-detergent oil.

30 non-detergent oil.

I

I

I

I

8 308-517

To reduce

the risk of serious bodily injury, including fluid injection, splashing in the eyes or onthe skin, or injury from

moving parts, always follow the

WARNING

Pressure Relief Procedure Warning

before proceeding.

Problem

ow pressure and/or Worn or wrong size tip.
Dump runs rough

Nater leakage from Worn packings.
Jnder pump manifold

Nater in pump

Frequent or Scored, damaged or worn plungers.
premature failure of
the packings

Strong surging at the
,nlet and low pressure
cn the discharge side

Unit will not start Unit not plugged in.

Cause

Inlet filter clogged.
Worn packings, abrasives in water or

natural wear.

Inadequate water supply.
Coupling slippage.
Fouled or dirty inlet or discharge valves.

Even a small particle can cause the valve
to stick.

Restricted inlet.
Worn inlet or discharge valves.

Leaking high pressure hose.

Humid air condensing inside crankcase.
Worn packings.

Oil seals leaking.

Abrasive material in the fluid being
pumped.

Inlet water temperature too high.
Overpressurizing pump.

Excessive pressure due to partially

plugged or damaged tip.

Pump running too long without spraying.

Running pump dry.

Foreign panicles in the inlet or discharge

valve or worn inlet and/or discharge valves.

Electrical service off/GFCl activated.

Thermal overload has tripped.

Solution

Replace with tip of proper size.
Clean, Check more frequently.
Check filter. Replace packings. See PUMP SERVICE.

Check water flow rate to pump.

Tighten or replace.

Clean inlet and discharge valve assemblies. Check
filter.

Check garden hose, may be collapsed or kinked.
Replace worn valves.
Replace high pressure hose.

Install new packings. See PUMP SERVICE.

Change oil as specified in MAINTENANCE.
Install new packings. See PUMP SERVICE.
Install new oil seals. See PUMP SERVICE.

Install new plungers. See PUMP SERVICE.
Install proper filtration on pump inlet plumbing.

Check water temperature; may not exceed 160°F.
Do not modify any factory-set adjustments. See

EQUIPMENT MISUSE HAZARD.
Clean or replace tip. See Installing and Changing

Spray Tips.

Never run pump more than 10 minutes without

spraying.

Do not run pump without water.

Clean or replace valves. See PUMP SERVICE.

Check power cord.
Check fuse/circuit breaker. Check for proper

grounding.

Press reset button on motor.

Chemical injector will
not siphon

Chemical injector clogged.

Adjustable nozzle completely closed.

Low chemical level.

Disassemble chemical valve and clean chemical
hose and filter.

Turn control ring on nozzle clockwise to cause drop

in pressure.
Check level of chemical.

308-517 9

PARTS DRAWING

800-232
800-233 Hydra-Clean@ 1235 Pressure Washer (Wiring Diagram - see page 13)

Hydra-Clean@

828

Pressure Washer (Wiring

Diagram

- see page 12)

10 308-517

PARTS LIST

800-232 Hydra-Clean@ 826 Pressure Washer
800-233 Hydra-Clean@ 1235 Pressure Washer

REF PART
NO. NO.

1 802-760

2. 803-155
xx 803-149

3 . 803-185

#c 803-186

2 801-894 801-223

6 801-893
7 801-93 1
8 802-704

802-l 53

1: 802685 800-118

1: l :::zg;

* 801-883

13 802-751

it2 801-935 801-957
16 803-350

ii 803-396 801-103

I9 800-396

20 801-009

21 801-202

;: 801-090 801-967

;z 801-605 801-875
26 801-025
27 801-546

28 801-015
3’: 801-214 801-363

31 801-813
32 . 801-941

$ 801-818

33 . 801-025

zc 801-363

34 l 801-023

#c 801-015

2 801-878 802-729

37 801-818

it 801-235 108-179

40 801-880
41 801-857
42 802-648
43 801-024
44 801-940

DESCRIPTION

COVER, Switch
CORD SET, GFCI, 115V
CORD SET, 230V
LABEL, Warning, GFCI
LABEL, Warning, cord set
SWITCH, Motor
SCREW, Ground, self-tapping
BOX, Switch
GRIP Cord
CORD, 14/3
CORD, 12/3
PLATE. Instruction
NOZZLE, Adjustable

HOOD
TIP, Spray, 15”
TIP Spray, 15”

PANEL, End
WAND, 20”

SLEEVE, 18”

GUN, Spray

LABEL, Caution/Warning

NIPPLE, Hex 3/8 x l/4

GUN AND WAND ASSEMBLY

(incl 10, 14, 15, 16, 18, 20)
COUPLER, Female, l/4 (incl 21) :
O-RING, Female Coupler, l/4
COUPLER, Male, I/4
HOSE, High Pressure, 30’
SCREW, Machine, #lo-24 x 3/4 Ib

WASHER, Lock #10
WASHER, Lock 5/l 6

SCREW, Cap, hex hd,

318-16 x I -I/4

WASHER, Flat 5116
WASHER, Lock 318

SCREW, Cap, hex hd,

3/8- I6 x I -3i4

TUBING, PVC I/4

SCREW, Cap, hex hd,

5/16-18x 1
SCREW, Cap, hex hd,

318-16 x 1

WASHER, Lock 5/l 6
WASHER, Lock 3/8

WASHER, Flat I/4

WASHER, Flat 5/l 6

HANDLE
NUT Hex 3/8-I 6
SCREW, Cap, hex hd,

318-16 x 1

WHEEL
WASHER, Flat, 5/8

PIN, Cotter l/8 x 1 -l/2
AXLE
SPACER, Pivot
NUT, Hex 5/16-I8
SCREW, Cap, hex hd

5116-18 x 314

QTY

402in
40 in

IO

I2
10

16ft

4

2

2

4

:
4
4
4

4

6
2

4

:
4

4

1
1

:

1
;

I
1

I

:

:
1

:

1
1

I

REF

PART

NO.

45
46
47
48
49
50

z:

2:
55
56
57
58
59
60
61

E

ii

68 . 803-165

69 l 802-765

70 801-226

71 . 801-304

72 801-866

73 803-083

5: l

76 801-622
77 801-178
78 801-523
79 . 800-154

80 801-891

81 801-890
82 . 801-865

83 801-907

2 801-905 803-486
86 . 801-900

87 . 801-901

:: 801-881 801-620

i: 801-709 801-129

!o%-703
800-247
802-730
402-278
801-112
802-735
801-683
80 l-023
800-246
802-669
802-683
801-937
802-686
802-843
802-733
802-73 1
802-732
801-547
801-606
802-684
801-733
802-636
802-627

$c 801-445

+c 801-931

e 801-221

802-665 800-l I5

s 800-248

* 802-842

DESCRIPTION

CASTER
BRACKET, Caster
BUMPER
PLUG, Plastic
STRAINER, Garden Hose
HOSE ASSEMBLY, Inlet
FILTER, Chemical
WASHER, Flat l/4
CHASSIS
HOSEBARB, l/8 x I/4
VALVE, Metering
NUT, Lock, electrical
LABEL, Control Panel
LABEL, Knob
SCREW, Machine #6-32 x l/2
WASHER, Lock #6
WASHER, Flat #6
WASHER, Flat 3/4
WASHER, Flat #IO
VALVE, 3 Way
HOSEBARB, I/4 x l/4
PANEL, Control
ADAPTER
LABEL, Voltage, I I5V
LABEL, Voltage, 230V
GRIP, Cord
GRIP, Cord
CONNECTOR, Wire

(see page 12)
TERMINAL, Ring (see page 12)
TERMINAL, Ring (see page 12)
HOSE ASSEMBLY, Bypass

(incl 67)
LABEL, Keep from Freezing
VALVE, Thermal Relief
ELBOW, Street l/2 x 45”
CROSS, l/2
ELBOW, Street I/2 x 90”
NIPPLE, l/2 x 2
PUMP AND MOTOR ASSEMBLY

(see page 12)
PUMP AND MOTOR ASSEMBLY

(see page 13)
NIPPLE, Hex

3/8 x 3/8 NPSM (m)
SWIVEL, 3/8 x 318 NPSM
UNLOADER, 800 PSI
UNLOADER, 1200 PSI
WASHER, Aluminum
ADAPTER 318 x 318 G 1
CHEMICAL INJECTOR
GROMMET Rubber
SUPPORT, Unloader
SWIVEL, 318 x l/4
ELBOW, Street 114
PLUG, Squarehead I/4
LABEL, Warning

(9

QTY

:
4

4
2

:
2
4
4
4

i

l
1
I

:
I
I

s
2

1
1
1
1
1
1

1

1

:

1
I
I

1
I

1
I

I

:
1
1

1

1

1
1

l

800-232 Hydra-clean 826 Pressure Washer

* 800-233 Hydra-clean1 235 Pressure Washer

308-517 11

PARTS DRAWING

800-l 54 Pump and Motor Assembly

PARTS LIST

800-154 Pump and Motor Assembly

REF
NO.

PART
NO.

1

801-862 MOTOR, 1.5 hp TEFC, 1 phase

2

801-864 PUMP, 800 psi, (see parts

801-870
801-871 COUPLER (incl 11)
801-872 SCREW, Cap, hex hd M6 x 20

801-023 WASHER, Flat ,1/4
801-139 WASHER, Lock, l/4
801-015 WASHER, Flat, 5/l 6
801-363 WASHER, Lock, 3/8
802-818 SCREW, Cap, hex hd
801-887 SPIDER
801-l 37 KEY

DESCRIPTION QTY

(incl 12)

drawing, page 14)

HOUSING, Coupler

WIRING DIAGRAM WIRING DIAGRAM

115 Volt, 1 Phase (see page

115 Volt, 1 Phase (se

1

1
1

:

4
4
4
4
4

1
1

BLK BLK
WHT WHT
GRN GRN

11)

SWITCH SWITCH

BOX

BOX

MOTOR
WIRING

BOX

12 308-517

PARTS DRAWING

800-248 Pump and Motor Assembly

PARTS LIST

800-248 Pump and Motor Assembly

FIEF PART
NO. NO.

1

802-625

2

802-629

3

802-633

4

802-698

zi

802-786 801-139

7

802-784

8

802-785

9

10

801-887
801-137

DESCRIPTION

MOTOR, 3.0 hp TEFC, 1 phase

(incl 10)

PUMP, 1200 psi (see parts

drawing, page 16)
HOUSING, Coupler
COUPLER (incl 9)

SCREW, Cap, hex hd M6 x 16
WASHER, Lock l/4
WASHER, Lock l/2

SCREW, Cap, socket hd

1/2-13x l-1/4
SPIDER
KEY

QTY

WIRING DIAGRAM

230 Volt, 1 Phase (see page 11)

ELK
WHT
GRN

SWITCH

BOX

MOTOR
WIRING

BOX

308-517

13

PARTS DRAWING

802-265 Pump Asse

I

I
I

r

-\

-1.

I

\1

c

b

22 45

?rn

21

0

.

0

0

a

L--

0

2

- ia I

I

14 308-517

802-265 Pump Assembly, 800 psi

REF
NO.

1

2

3

4

5
6
7

8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

PART
NO. DESCRIPTION

801-899 MANIFOLD, Aluminum
802-795 MANIFOLD, Brass
801-651 SCREW, Cap, socket hd.
801-652 WASHER, Lock
KIT 1 O-RING

KIT 1 SEAT Valve

KIT 1 PLATE, Valve

KIT 1 SPRING

KIT 1 GUIDE, Valve

KIT 4 O-RING
KIT 4 CAP
KIT 1 VALVE ASSEMBLY
KIT 19, 27 PACKING
KIT 27 RETAINER, Packing
KIT 27
KIT 27 RETAINER, Packing
KIT 27 O-RING
KIT 23 SEAL, Oil
803-265 SCREW, Cap, hex hd
803-266 COVER, Crankcase
803-267 SPACER
803-268 O-RING
803-269 BEARING, Ball
803-270 CRANKCASE
801-659 DIPSTICK

RING, Head

QTY

1
1
6
6

REF

F

26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

42

43

44
45
49

50

51
52

PART
NO.

803-271 GASKET, Cover

803-272

803-273
KIT 6
802-345 GAUGE, Sight
802-793
803-274
803-275
802-794
803-276
803-277
803-278
803-279
803-280
801-489
801-661

KIT 6
KIT 6

KIT 6
803-281 SPACER
803-282
80 1-484
801-482

801-483 WASHER, Flat
801-485

DESCRIPTION

COVER, Crankcase

SCREW, Cap, socket hd.
O-RING

PLUG, Oil Drain
CRANKSHAFT
PIN, Wrist
KEY

ROD, Connecting
WASHER, Flat
WASHER, Lock

SCREW, Cap, socket hd.

GUIDE, Piston

WASHER, Flinger

PLUNGER, Ceramic

RING, Backup

WASHER

SCREW, Piston

SEAL, Crankshaft
PLUG, Hex
PLUG, Hex

WASHER, Flat

QTY

1
1

4

1
1
1

2

1
2
4
4
4
2
2
2

Kit
No.

23

27

Repair Kit
Part No.

801-472

Valve

802-306
Valve Cap

801-474

Plunger
Repair

801-662

Packing

801-658

Oil Seal

801-664

Packing &
Retainer

Ref
No.

Description

4

O-ring
Seat, valve

5

Plate, valve

6
7

Spring
Guide, valve

8

11

Valve Assy.

O-ring

9

10

Cap
O-ring

28
41

Ring, backup
Washer

42

Screw, piston

43

Packing

12

Seal, oil

17

Packing 1

12

Retainer, packing

13
14 Ring, head

Retainer, packing

15

O-ring

16

Q W

Incl.

6
6
6
6
6
6

6
6

3
3
3

3

6

6

1
1
1
1

308-517

15

PARTS DRAWING

802-629 Pump Asse

19

23

24

Y

I

/--

/--

/--

/- _-

I

18

29

16 308-517

802-629 Pump Assembly, 1200 psi
REF

NO.

10 KIT 4 CAP
11 KIT 1 VALVE ASSEMBLY
12
13
14 KIT 27 RING, Head
15
16
17 KIT 23 SEAL, Oil
la
19
20
21 803-268 O-RING
22 803-269 BEARING, Ball
23 603-326 CRANKCASE
24
25

PART
NO. DESCRIPTION

1 802-319 MANIFOLD, 1200 psi
2 801-651 SCREW,Cap, sockethd.

801-652 WASHER, Lock

3
4

KIT 1 O-RING
KIT 1

5

KIT 1 PLATE, Valve

6
7

KIT 1 SPRING
KIT 1

a

KIT 4 O-RING

9

KIT 19, 27 PACKING
KIT 27 RETAINER, Packing

KIT 27 RETAINER, Packing
KIT 27 O-RING

803-265 SCREW, Cap, hex hd
603-266 COVER, Crankcase
603-267 SPACER

801-659 DIPSTICK
803-327 GASKET, Cover

SEAT, Valve

GUIDE, Valve

QTY

1
a
a

REF

2
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
49
50
51
52

PART
NO.
802-526 COVER, Crankcase
803-273 SCREW, Cap, socket hd.
KIT 6 O-RING
802-345 GAUGE, Sight
802-793 PLUG, Oil Drain
603-329 CRANKSHAFT
803-275 PIN, Wrist
802-794 KEY
603-276 ROD, Connecting
603-277 WASHER, Flat
803-276 WASHER, Lock
803-279 SCREW, Cap, socket hd.
803-330 GUIDE, Piston
801-660 WASHER, Flinger
601-661 PLUNGER, Ceramic

KIT 6
KIT 6 WASHER

KIT 6
803-281 SPACER
803-282 SEAL, Crankshaft

801-484 PLUG, Hex

601-462 PLUG, Hex

801-463 WASHER, Flat

601-465 WASHER, Flat

DESCRIPTION

RING, Backup

SCREW, Piston

QTY

1

5

1
1

i

1
3
6
6
6
3
3
3

Valve

Ref
No.

Description

4 O-ring 6

5 Seat, valve 6
6 Plate, valve 6
7 Spring 6

Guide, valve 6

a

11 Valve Assy. 6

9 O-ring 6

10 Cap 6

28 O-ring 3
41 Ring, backup 3
42 Washer 3
43 Screw, piston 3

12 Packing 6

17 Seal, oil 6

12 Packing 1
13 Retainer, packing 1
14 Ring, head 1
15 Retainer, packing 1
16 O-ring 1

QW
Incl.

308-517 17

WARNING

To reduce the risk of serious bodily injury,

including fluid injection, splashing in the eyes or
on the skin, or injury from moving parts, always

follow the

before proceeding.

NOTE:

NOTE:

Pressure Relief Procedure Warning

The following metric wrenches are needed:

Ml 0, Ml 3 and M30. Repair kits are available.
Refer to the individual repair sections and the
pump parts page for more details. For the best

results, use all parts in the kits.

There are two different tool kits to aid in

servicing the pump. P/N 800-298 is used to
ease installation of packings. P/N 800-271
includes the items in 800-298 and tools to aid
in the removal of packing retainers.

Valves

NOTE:

1.

2.

3.

4.

For a set of six valves, order P/N 801-472.

Remove the hex plug from the manifold using an
M30 wrench.

Examine the o-ring under the hex plug and replace
it if it is cut or distorted.

Remove the valve assembly from the cavity; the
assembly may come apart.

Install the newvalve. Install the o-ring and hex plug;

torque to 75 &lb (103 Nm).

1.

Loosen the plunger retaining screw five to six turns,
using an Ml 0 wrench. Push the plunger towards the
crankcase to separate the plunger and retaining
screw.

2.

Remove the screw from the plunger and examine
the o-ring, backup ring and copper bearing/gasket
washer. Replace these parts if necessary using kit

801-474.

Remove the plunger and flinger from the plunger

3.
shaft. Clean, examine and replace parts as
necessary.

4.

Inspect the plunger shaft for oil leakage from the
crankcase. If leaking is obvious, replace the oil
seals. Otherwise, DO NOT remove these seals as
they cannot be reused. An oil seal kit is available to
replace the seals.

Lightly grease the oil seal, if it is being replaced,

5.
and the flinger and replace them on the plunger
shaft. Then install the plunger.

Lightly grease the retaining screw and the outer end

6.
of the plunger. Place the washer, o-ring and backup
ring around the screw and install the screw through
the plunger. Torque to 14.4 ft-lb (19.5 Nm).

NOTE:

7.

If you plan to replace the packings, refer to
Servicing the V-Packings.

Lubricate the outside of each plunger. Slide the
manifold onto the crankcase, being careful not to
damage the seals.

NOTE: Retorque the plug after 5 hours of operation.

Pumping Section

1. Remove the eight capscrews and lockwashers from
the manifold using an Ml3 wrench.

2. Carefully separate the manifold from the crankcase.

NOTE:

It may be necessary to tap the manifold lightly

with a soft mallet to loosen.

CAUTION

Keep the manifold properly aligned with the
ceramic plungers when removing to avoid
damage to the plunger or seals.

3. Carefully examine each plunger for any scoring or

cracking and replace as necessary.

Servicing the Plungers
NOTE:

Plunger repair kit, P/N 801-474 is available to
replace retainers, o-rings, washers and
backup rings for three cylinders.

Install the capscrews and washers finger-tight.

a.

Torque the screws to 21.7 ft-lb (29 Nm) following the
tightening pattern (Figure 3). Uneven tightening
may cause the manifold to bind or jam.

Figure 3

18 308-517

Servicing the V-Packings

PTFE

PTFE

PTFE

PTFE

PTFE

PTFE

PTFE

PTFE

PTFE

NOTE: There are two types of packing kits: one is just

packings, the other includes the packings,
rings and retainers.

1. Remove the manifold as outlined in the Pumping
Section.

2. Carefully pull the packing retainer from the
manifold. Examine the o-ring and replace it if it is
cut or damaged.

3. Remove the v-packing and head ring. Pull out the
intermediate retainer ring. Remove the second
v-packing and second head ring.

4. Inspect all parts and replace as necessary.

ACCESSORIES
(Must be purchased separately)

5. Thoroughly clean the packing cavities and
examine.

6. Lightly grease the packing cavities and then
replace the packings in the following order: head
ring, v-packing, intermediate ring, head ring,

v-packing and packing retainer with the o-ring

installed in the retainer groove.

Be very sure the parts are installed in the proper

7. Reassemble the manifold as instructed in Servicing

the Plungers.

UPSTREAM CHEMICAL INJECTOR KIT

800-257

For injecting mild cleaning chemicals upstream into the

pump.

BACKFLOW PREVENTOR 801-133

Prevent back-up of contaminated water into fresh
supply. Install upstream of pump.

I

Wotor (Totally Enclosed 1.5 hp, 1

-an Cooled)
Electrical Service

Water Pump Maximum
Norkina Pressure

Nater Pump Maximum Flow
Jnit Weight

Iimensions

Length
Width
Height

Waximum Inlet Water
Temperature

nlet Hose Connection

Netted

Pans

High Pressure Hose

I

I

I

Acrylonitrile and Buna-N cover and tube

Model 800-232

phase

115 volts/l 5 amps/60 Hz

800 psi (55 bar)

2.6 gpm (10 Ipm)
100 Ibs (46 kg)

38 in (965 mm)
19 in (482 mm)
33 in (838 mm)

160” F (70” C)

314 in garden hose (f)

ANTI-FREEZE FLUSH KIT 802-327

For flushing system with 50% anti-freeze solution prior
to transporting or storing pressure washer in below
freezing temperatures.

INLET PRESSURE REGULATOR 800-258

Regulates inlet water pressure to 60 psi (4 bar)
maximum.

I

I

I

I

Model 800-233

3.0 hp. 1 phase

230 volt/20 amp/60 Hz

1200 psi (82 bar)

3.5 gpm (13 Ipm)

150 Ibs (68 kg)

38 in (965 mm)
19 in (482 mm)
33 in (838 mm)

160” F (70” C)

3/4 in garden hose (f)

Bypass Hose

Pressure Washer

(including fittings)

Synthetic yarn and EPDM

Anodized aluminum, Aluminum or Bronze alloys, Brass, Copper, Nylon- composite,

Ceramic, Buna-N, Cotton Phenolic, 303, 304, and 316 Stainless Steel, Polymide-12

Thermoplastic, Carbon Steel, Zinc with or without Yellow Chromate Plate

is a registered trademark of the DuPont Company.

308-517 19

THE GRACO WARRANTY

WARRANTY AND DISCLAIMERS
Grace warrants all equipment manufactured by it and bearing its name to be free from defects in material
and workmanship on the date of sale by an authorized Grace distributor to the original purchaser for use.
As purchaser’s sole remedy for breach of this warranty, Grace will. for a period of twenty four months from
date of sale, repair or replace any part of the equipment proven defective. This warranty applies only when
the equipment is installed, operated and maintained in accordance with Grace’s written
recommendations.

This warranty does not cover, and Grace shall not be liable for, any malfunction, damage or wear caused
by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance,
negligence, accident, tampering, or substitution of non-Grace component parts. Nor shall Grace be
liable for malfunction, damage or wear caused by the incompatibility with Grace equipment of structures,
accessories, equipment or materials not supplied by Grace. or the improper design, manufacture,
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by
Grace.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective for
examination by Grace to verify the claimed defect. If the claimed defect is verified, Grace will repair or
replace free of charge any defective parts. The equipment will be returned to the original purchaser
transportation prepaid. If inspection of the equipment does not disclose any defect In material or
workmanshrp, repairs will be made at a reasonable charge, which charges may include the costs of parts,
labor and transportation.

DISCLAIMERS AND LIMITATIONS
THE TERMS OFTHIS WARRANTY CONSTITUTE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY
AND ARE IN LIEU OF ANY OTHER WARRANTIES (EXPRESSOR IMPLIED), INCLUDING WARRANTYOF

MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. AND OF ANY

NON-CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR

STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL

DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S

LIABILITY EXCEED THE AMOUNT OF THE PURCHASE PRICE ANY ACTION FOR BREACH OF

WARRANTY MUST BE BROUGHT WITHIN THREE (3) YEARS OF THE DATE OF SALE.

EQUIPMENT NOT COVERED BY GRACO WARRANTY

GRACO MAKES NO WARRANTY. AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO ACCESSORIES, EQUIPMENT

MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but

not manufactured by Grace (such as electric motor, switches, hose, etc.) are subject to the warranty, if

any, of their manufacturer. Grace wtil provrde purchaser wrth reasonable assistance in making any claim

for breach of these warranties.

IMPORTANT PHONE NUMBERS

TO PLACE AN ORDER, contact your Grace distributor, or call this number to identify the

distributor closest to you: I-800-328-021 1 Toll Free

FOR TECHNICAL ASSISTANCE, service repair information or assistance regarding the

application of Grace equipment: l-800-543-0339 Toll Free

Subsidiary and Affiliate Companies: Canada, England; Switzerland; France; Germany; Hong Kong; Japan

Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441

PRINTED IN U.S.A. 308-517 2/90