John Deere HR1250E1 OPERATOR'S MANUAL

HR-1250E1
High Pressure Washer

Operator’s Manual 1

Introduction

THANK YOU for purchasing a John Deere product.

READ THIS MANUAL carefully to learn how to operate
and service your machine correctly. Failure to do so could
result in personal injury or equipment damage. This manual
and safety signs on your machine may also be available in
other languages. (See your John Deere dealer to order.)

THIS MANUAL SHOULD BE CONSIDERED a permanent
part of your machine and should remain with the machine
when you sell it.

MEASUREMENTS in this manual are given in both
metric and customary U.S. unit equivalents. Use only
correct replacement parts and fasteners. Metric and inch
fasteners may require a specific metric or inch wrench.

RIGHT HAND AND LEFT HAND sides are determined by
facing the motor end of the machine.

The SERIAL NUMBER is located in the Specification or
Identification Numbers section. Accurately record all the
numbers to help in tracing the machine should it be stolen.
Your dealer also needs these numbers when you order
parts. File the identification numbers in a secure place
off the machine.

WARRANTY is provided from your John Deere dealer for
customers who operate and maintain their equipment as
described in this manual. The warranty is explained on
the warranty certificate shown in this manual.

This warranty provides you the assurance that your
dealer will back products where defects appear within
the warranty period. Should the equipment be abused,
or modified to change its performance beyond the original
factory specifications, the warranty will become void.

2 Operator’s Manual

Contents

Page

Safety ........................................................................ 5

Safety Signs ...........................................................10

Controls ................................................................. 13

Preparing the Washer ............................................ 14

Operating the Washer ............................................20

Troubleshooting

Service .................................................................... 28

Storage ....................................................................31

Specifications .........................................................33

Accessories ........................................................34-35

Warranty

Notes ........................................................................ 39

.................................................................. 38

..................................................... 26

All information, illustrations and specifications in this manual are based

on the latest information available at the time of publication. The right is

reserved to make changes at any time without notice.

Operator’s Manual 3

Contents

4 Operator’s Manual

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Safety

RECOGNIZE SAFETY INFORMATION

This is the safety alert symbol. When you see this symbol
on your machine or in this manual, be alert to the potential
for personal injury.

Follow recommended precautions and safe operating
practices.

UNDERSTAND SIGNAL WORDS

A signal word--DANGER, WARNING or CAUTION--is used
with the safety-alert symbol. DANGER identifies the most
serious hazards.

DANGER or WARNING safety signs are located near
specific hazards. General precautions are listed on
CAUTION safety signs. CAUTION also calls attention to
safety messages in this manual.

FOLLOW SAFETY INSTRUCTIONS

Carefully read all safety messages in this manual and on
your machine safety signs. Keep safety signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from your John Deere dealer.

Learn how to operate the machine and how to use controls
properly. Do not let anyone operate without instruction.

Keep your machine in proper working condition.
Unauthorized modifications to the machine may impair the
function and/or safety and affect machine life.

If you do no understand any part of this manual and need
assistance, contact your John Deere dealer.

Operator’s Manual 5

PROTECT AGAINST HIGH PRESSURE
SPRAY

Spray from high pressure nozzles can penetrate the skin
and cause serious injury. Keep spray from contacting
hands or body.

If an accident does occur and the spray appears
to have penetrated the skin, SEEK EMERGENCY
ME D I C A L CA R E . DO NO T TR E AT AS A
SIMPLE CUT. If you are using cleaning agents,
be prepared to tell a physician exactly what kind.

GROUNDING INSTRUCTIONS

This product must be grounded. If it should malfunction
or breakdown, grounding provides a path of least
resistance for electric current to reduce the risk of electric
shock. This product 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
local codes and ordinances.

DANGER - Improper connection of the equipment­grounding conductor can result in a 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, have a proper outlet installed by
a qualified electrician.

GR O UN D FAU LT CI RC U IT I NT E R RU P TE R
PROTECTION

This pressure washer is provided with a Ground Fault
Circuit Interrupter (GFCI) built into the power cord. This
device provides additional protection from the risk of
electric shock. Should replacement of the plug or power
cord become necessary, use only identical replacement
parts that include GFCI protection.

DO NOT drop the GFCI as damage could result. If the
GFCI is accidentally dropped, be certain to test the GFCI
before using to ensure it is working properly. (Follow
instructions on GFCI for test procedures.)

DO NOT pull on the electrical cord to disconnect from
the outlet, OR carry the unit by the cord.

6 Operator’s Manual

EXTENSION CORDS

MSDS

Extension cords are not recommended for use on this
pressure washer. If the use of an extension cord is
unavoidable, it must be plugged into a GFCI found in
circuit boxes or protected receptacles.

Use only 3-wire extension cords that have 3-prong
grounding type plugs and 3-pole cord connectors that
accept the plug from the washer. 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 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.

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

On extension cords:

Cable Length Wire Gauge
Up to 50 feet 14 AWG
50 to 100 feet 12 AWG

CLEANING DETERGENT PRECAUTIONS

Know the detergent being used. Be prepared to tell a
physician exactly what you are using in the event of an
emergency. Read all detergent labels and follow all
instructions exactly regarding preparation, use, safety,
transportation, and disposal. Keep all detergents out of
the reach of children, pets and livestock.

NEVER spray combustible liquids of any kind.

Do not use highly corrosive detergents or acid-type
cleaners with this washer.

Direct exposure to hazardous chemicals can cause injury.
Potentially hazardous chemicals used with the pressure
washer includes such items as detergents.

A Material Safety Data Sheet (MSDS) provides specific
details on detergents; physical and health hazards, safety
procedures and emergency response techniques.

Check the MSDS before you start any job using a detergent.
That way you will know exactly what the risks are and how to
do the job safely. Then follow procedures and recommended
equipment. (See your John Deere dealer for MSDS Sheets
on products used with this equipment.)

Use of smaller cords will cause electric motor stalling or
circuit breaker stoppage.

HANDLE CHEMICAL PRODUCTS SAFELY

Operator’s Manual 7

IMPORTANT SAFETY INSTRUCTIONS

WARNING: To reduce the risk of injury, read this
operator’s manual completely. When using this product,
the following basic precautions should always be
followed:

1. Read all the instructions before using the product.

2. This product is equipped with a Ground Fault Circuit
Interrupter (GFCI) in the power cord to reduce the risk
of electrical shock. If replacement of the plug or cord
is needed, use only identical replacement parts.

3. Follow the grounding instructions included in this
manual.

4. High pressure water spray can cut skin. Do not direct
spray at persons. Keep operating area clear of all
persons or pets. Warn children that the water spray
can cut. Supervise children closely.

5. Do not allow children or untrained person to operate
the washer.

6. Do not spray electrical switches, receptacles or light
bulbs, or glass or fragile objects that may shatter.

7. Dirt and debris removed by spray can cause eye injury.
Wear eye protection.

8. Wet surfaces can be slippery. Wear shoes and keep
both feet on the ground. Do not climb on items being
cleaned. Do not overreach or stand on unstable
support. Keep good footing and balance at all
times.

9. When the spray trigger is released, water pressure
is trapped in the discharge hose. Release trapped
pressure by triggering the spray gun after the washer
is turned off.

10. Do not operate the washer when fatigued or under
the influence of drugs or chemicals. Stay alert.
Watch what you are doing.

11. Follow the maintenance instruction specified in this
manual.

SAVE THESE INSTRUCTIONS

WEAR PROTECTIVE CLOTHING

Wear close fitting clothing and safety equipment
appropriate to the job.

Wear a suitable hearing protective device such as
earmuffs or earplugs to protect against objectionable or
uncomfortable loud noises.

Operating equipment safely requires the full attention of
the operator. Do not wear radio or music headphones while
operating machine.

8 Operator’s Manual

PREPARE FOR EMERGENCIES

Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,

hospital and fire department near your telephone.
Be prepared if a fire starts.

INSPECT HIGH PRESSURE WASHER

Be sure all covers, guards and shields are in place.
Locate all operating controls and safety labels.
Keep all hardware and plumbing fittings tight.
Inspect power cord for damage before using. There is a hazard

of electrical shock from crushing, cutting or heat damage.
Inspect high pressure hose for kinking, cuts or abrasive

wear.

SE R V ICE HI G H PR E S S U R E WAS H E R
SAFELY

Before servicing washer, disconnect unit from power source,
relieve water pressure and allow unit to cool down.

Service washer in a clean dry flat area.

Operator’s Manual 9

SAFETY SIGNS

34-1423 and 34-1424

Location: Motor Housing

34-1428 and 34-1429

Location: Handle Sides

34-1427

Location: Motor Housing

10 Operator’s Manual

34-1430 and 34-1431

Location: Motor Housing

34-1445

Location: Handle

34-1425 and 34-1426

Location: Motor Housing

Operator’s Manual 11

RISK OF ELECTROCUTION.

DO NOT REMOVE THIS TAG.

FAILURE TO FOLLOW THE ABOVE

INSTRUCTIONS COULD RESULT

IN A SEVERE ELECTRICAL SHOCK.

34-1035-E/F/S-111899-ENG

1. Connect only to a properly grounded outlet. Do not
remove ground pin.

2. Inspect cord before using. Do not use if cord is
damaged.

3. Keep all connections dry and off the ground.

4. Do not touch plug with wet hands.

5. This unit may be provided with a Ground Fault Circuit
Interrupter (GFCI) built into the power cord plug. If
replacement of the plug or cord is needed, use only
identical replacement parts. If this unit is not provided
with a GFCI, this unit should only be connected to a
power supply receptacle protected by a ground fault
circuit interrupter.

6. Do not use an extension cord with this machine.

7. Read the operator's manual before using.

WARNING

ADVERTISSEMENT

•Brancher seulement á une prise correctement mise á la
terre. Ne pas enlever la broche de mise á la terre.

•Vérifier le cordon avant l'utilisation. Ne pas utiliser le cordon
s' il est endommage.

•Conserver toutes les connexions au sec et au-dessus du sol.

•Ne pas toucher la prise avec des mains humides.

•Cet appareil peut être équipé d'un disjoncteur de fuite à la
terre incorporé dans la fiche du cordon électrique. S'il s'avère
nécessaire de remplaçer la fiche ou le cordon, n'utiliser que
des pièces de rechange identiques. Si cet appareil ne
comporte pas un disjoncteur de fuite à la terre, ne le relier
qu'à une prise de courant protégée par un disjoncteur de
fuite à la terre.

•L' utilisation d' une rallonge n' est pas recommandée.

•Lire le manuel de l' opérateur av

ant d' utiliser l' appareil.

RISQUE D' ÉLECTROCUTION NE

PAS ENLEVER CETTE ÉTIQUETTE

DES CHOCS ÉLECTRIQUES SÉVÉRES

SERONT POSSIBLES SI LES DIRECTIVES

CI-DESSUS NE SONT PAS SUIVIES.

•Conecte solamente a una toma corr

iente que está bien

fundado. No quite la pata de conexión de la tierra.

•Antes de usar inspeccióne la cuerda. No use si la cuerda està
dañando.

•Mantenga los conexiones secos y apar tados de la tierra.

•No torque el enchufe con manos mojados.

•Este producto debe conectarse a tierra.

Asegúrese de que la
lavadora a presión esté equipada con un Interruptor de
circuito de falla a tierra (Ground Fault Circuit Interrupter,
GFCI) incorporado en el cordón de alimentación. Si no lo
tiene, debe conectarse la lavadora a presión únicamente en
un receptáculo que esté protegido por un Interruptor de
circuito de falla a tierra. Desconéctela cuando no esté en uso.

•No use una cuerda extensión con la unidad.

•Antes de usar lea y entienda todas las instrucciónes y el
manual de operación.

ADVERTENCIA

SI NO SIGA LAS INSTRUCCIÓNES HAY EL

RIESGO DE ELECTROCUCIÓN SEVERA.

RIESGO DE ELECTROCUCION.

NO QUITE EST

A ETIQUETA.

12 Operator’s Manual

34-1035

Location: Power Cord

CONTROLS

Controls

B

K

A

E

C

D

F

H

J

G

I

A--On/Off Switch
B--Handle
C--High Pressure Outlet

Operator’s Manual 13

D--Water Inlet Fitting
E--Power Cord
F--Ground Fault Circuit

Interrupter

G--Detergent Hose
H--Nozzle Wand
I--Gun Trigger

J--Gun
K--Discharge Hose

Preparing the Washer

ELECTRICAL REQUIREMENTS

CAUTION: To avoid electrical shock, connect
the washer to a properly grounded electrical
receptacle. Do not use an adapter or remove third
(ground) prong.

Make certain the connection between the washer
power cord and receptacle is kept dry.

The following electrical requirements must be met:

1. The electrical supply must provide a minimum of 110 to
120 volts. With the washer operating, line voltage must
not drop below 108 volts.

IMPORTANT: Operating the pressure washer with

low line voltage may damage electrical
components and cause motor to stall.

2. This pressure washer is equipped with a Ground Fault
Circuit Interrupter in the power cord to reduce the risk
of electrical shock. However the GFCI will not protect
against all faults, short circuits, or overloads.

IMPORTANT: The GFCI MUST be reset each time the

washer is unplugged and plugged in
again.

14 Operator’s Manual

Preparing the Washer

INLET WATER SUPPLY REQUIREMENTS

1. Inlet water supply must be a minimum of 20 PSI (1.4
bar).

Attempting to operate the washer with less than

adequate water supply will cause rapid wear of packings,
valves and bearings that will dramatically shorten pump
life. Symptoms of inadequate water supply are pump
shuddering and flattening of the supply hose.

2. Inlet water flow must be at least 125% of pump rated
flow. Check volume by timing how long it takes to fill a
5 gallon (19 L) container. For example, a flow rate of

3.0 GPM would fill a 5 gallon container in 5/3 minute
(100 seconds).

3. Water supply hose should be a good grade of garden
hose with a minimum I.D. 5/8 in. (16mm) and no longer
than 50 ft. (15.24 m). If longer supply hose must be
used, check to be certain flow is at least equal to the
“GPM Supply Required”.

4. If non-pressurized (static draw) water supply is used,
check to be certain flow is at least 125% of pump rated
flow. In static draw situations, water flow rate (GPM)
can be increased by elevating the water supply tank
or changing to a larger inside diameter water supply
hose.

5. Adding on extension to the supply hose will reduce water
flow rates. Check for adequate water flow rate each
time an extension is added. Water flow rates can be
increased by using the largest possible internal diameter
supply hose.

IMPORTANT: Inlet water temperature must not be more

than 125° F (60° C). Damage to the pump
may result.

Operator’s Manual 15

Preparing the Washer

CHECK PUMP OIL

1. Remove shipping plug and install vented plug (A) on
pump.

2. Check oil in pump. With washer on level surface, the
oil should fill the oil level sight glass (B). If necessary,
top with HYGARD® or SAE30W non-detergent oil.

A

B

CONNECT DISCHARGE HOSE TO GUN

1. Apply pipe tape or sealant to threads on gun.

2. Attach discharge hose to gun using two open-end
wrenches. Tighten hose fitting enough to prevent
leaks.

IMPORTANT: Do not attach nozzle wand to gun handle

until water system is primed.

16 Operator’s Manual

CONNECT HOSES AND PRIME PUMP

Preparing the Washer

1. Hose washer with screen (A) is already attached into
end of brass hose coupler.

NOTE: Conical screen in washer (A) should protrude out of

coupler and into flow from inlet hose.

IMPORTANT: If washer is to be connected to a well water

system, use 851-0207 water inlet filter (A).
This will increase sand filtering capability
and avoid damage to the pump.

A

A

2. Install inlet water hose (A) and hand tighten. Install high
pressure discharge hose (B) with quick connect.

B

A

Operator’s Manual 17

Preparing the Washer

3. Open water supply. Squeeze trigger on gun. Allow
water to run (with motor off) until water runs out of
pressure hose. Start motor and cycle trigger on gun
until “crackling” sound (air in lines) stops. Turn off water
supply.

INSTALLING NOZZLE WAND

CAUTION: To avoid injury from escaping fluids
under pressure, relieve the pressure in the
system by stopping the washer and depressing
gun trigger. Lock trigger before adjusting
nozzle.

IMPORTANT: Do not attach nozzle wand until water

system is primed.

1. Place trigger lock (A) in locked position.

2. Insert connection fitting of nozzle wand (B) into gun
(C). Tighten threaded collar (D) on gun down on wand
threads to attach wand.

NO TE: W hen c hanging accessori es, t he wan d is

disconnected here and the accessory is connected
at this point. Washer wand has yellow dot (E) on

nozzle.

B

A

D

C

E

18 Operator’s Manual

Preparing the Washer

TE S T I N G GR O U N D FA U LT CI R C U I T
INTERRUPTER (GFCI)

CAUTION: Ground Fault Circuit Interrupter (GFCI)
MUST be tested before each use of the washer.

If the results in each one of the following steps are
not as described, shut washer off immediately. DO
NOT operate until the washer has been inspected
by a qualified electrician or your dealer.

1. Plug GFCI into grounded receptacle. Connect high
pressure outlet hose and turn on water supply.

2. Press and release “RESET” button (A) to verify power
to the washer.

3. Press “TEST” button (B). Red indicator bar (C) on reset
button should appear. (Power to the washer should be
interrupted).

4. Press and release the “RESET” button. Power should
be restored to the washer.

NOTE: GFCI test instruction are also found on the front of

the GFCI.

C
B

A

C

A

B

Operator’s Manual 19

Operating the Washer

STARTING MOTOR

IMPORTANT: To prevent possible pump damage, do

not allow washer pump to run in bypass
(with gun trigger released) for longer than
3 minutes.

The washer ON/OFF switch (A) is a rocker switch that
includes a circuit breaker for protection against motor
electrical overload.
Move the ON/OFF switch to the “ON” position.

LOCKING GUN TRIGGER

CAUTION: Gun trigger should be locked when not
in use or whenever adjustments are being made
to gun or nozzle. This will help prevent accidental
discharge of high pressure fluid.

1. Pivot lock (A) down to prevent trigger engagement.

2. Pivot lock up to release trigger.

A

A

ADJUSTING SPRAY NOZZLE PRESSURE AND
PATTERN

CAUTION: High pressure spray can cause serious
injury. Keep away from spray. Never point the gun
at yourself or anyone else. Never put your hand,
fingers, eyes or body directly over spray. Do not
point spray toward fragile materials.

Spray nozzle can be adjusted in four ways to obtain best
results.

Pressure Adjustments:

1. For high pressure spray pull nozzle cover toward the gun
handle (A).

2. For detergent spray push nozzle cover away from gun
handle (B). In this position, nozzle sprays at low pressure
and draws detergents into the system if the detergent the
hose is attached and in solution.

Pattern Adjustment:

1. For 0° Pinpoint Pattern-Turn nozzle fully clockwise (C).

2. For 60° Fan-Type Pattern-Turn nozzle cover fully
counterclockwise (D).

3. For Infinate Adjustment-Turn nozzle for desired spray
pattern anywhere between 0° and 60°.

D

BA

C

In the high pressure spray position, water pressure can be
varied by turning the pressure adjusting knob (E) clockwise
to increase pressure and counterclockwise to decrease
pressure.

20 Operator’s Manual

E

Operating the Washer

8" - 10"

(20-25 cm)

CLEANING HORIZONTAL SURFACES

Move nozzle wand from side to side. Direct spray at an
angle to force debris ahead and away from the cleared
area.

Depending on the material to be removed and nozzle
pressure, hold nozzle end 8 to 10 inches (20 to 25 cm) from
the surface and use slow, overlapping strokes. If debris
is easy to remove, move nozzle back to cover more area
for faster cleaning.

CLEANING VERTICAL SURFACES

IMPORTANT: Remember that the washer can deliver

a high pressure spray that can break
glass and gouge soft wood and other
materials.

When cleaning building interiors or exteriors without
detergents, work from top to bottom. This will help
eliminate streaks. In interiors, start with the ceiling first,
then the walls and the floor last.

Clean around windows carefully. If glass panes are not
well-caulked and puttied, the high pressure spray could
break the glass.

Never spray directly overhead. Always spray ahead to
avoid dripping or falling debris.

Operator’s Manual 21

Operating the Washer

REMOVING PAINT

IMPORTANT: Remember that high pressure spray can

gouge soft woods and other materials, as
well as loosen grout.

1. Place nozzle end in high pressure position and very
narrow spray pattern.

2. Direct spray at a 45° angle about 4 to 12 inches (10 to
30 cm) from surface.

3. Spray in a back and forth motion, try to get beneath the
loose and bubbled paint.

4. Do not be concerned with the paint that remains. It
should be sufficiently bonded so as not to cause
repainting problems.

5. Some remaining paint may curl up at the edges. These
edges should be scraped with a steel brush or scraper
just before painting.

CLEANING RADIATOR FINS

IMPORTANT: Some engine and radiator manufacturers

may not permit cleaning radiators with a
high pressure washer. See equipment
Operator’s Manual.

1. Use clean water without detergent.

IMPORTANT: Spray straight into the radiator to prevent

bending fins.

2. If possible, direct spray in the direction opposite to
normal air flow through the radiator.

22 Operator’s Manual

Operating the Washer

DETERGENT USAGE GUIDE

CAUTION: Use detergents carefully. Read
labels thoroughly and follow all instructions
for preparation, use, safety, transportation and
disposal. Be prepared to tell a physician exactly
what detergents you are using in the event of an
emergency. Keep all detergents out of reach of
children.

Be aware that two detergents can be mixed
on the sprayed surface. In this regard, some
detergents may give off harmful fumes or start
an unpredictable chemical reaction when mixed
with another detergent.

NEVER SPRAY FLAMMABLE LIQUIDS such as
gasoline, fuel oil, alcohol, naptha, etc.

Be sure to read and follow all detergent labels exactly
regarding preparation, use, safety, transportation, and
disposal. Keep in mind that the washer’s detergent
system further dilutes the detergent with water, and that
some detergents may not be concentrated enough to
properly work with the system.

Some detergents may not give premix instructions and
may require experimenting to determine proper dilution
for your application.

If you are not familiar with the detergent, always test
a small area of the surface to be cleaned for adverse
reaction. Do this a day in advance. Thoroughly rinse
area with water.

Operator’s Manual 23

Operating the Washer

CLEANING WITH DETERGENTS

CAUTION: Wear goggles, respirator, and
protective clothing to help prevent injury from
detergents and spray.

IMPORTANT: DO NOT direct pressure washer spray at

the washer.

1. Mix detergent as instructed by the manufacturer.

2. Be sure that water supply is adequate and turned on
fully.

3. Slide detergent hose (B) onto barbed detergent valve
(A).

4. Insert threaded end of detergent strainer (C) into
detergent hose (B).

5. Insert detergent hose into solution. Be sure that hose
is clear and fully submerged in solution.

IMPORTANT: The detergent system will work only if the

nozzle is in the low pressure position.

6. Slide nozzle collar forward (D) into the low pressure
position.

7. Start washer and squeeze gun trigger. If detergent does
not spray within one minute, check to make sure the
detergent hose is in the solution and is not plugged.

8. To help avoid streaking, apply detergent to the lowest
surface first, and move up, using long overlapping
strokes. Allow solution to soak for several minutes.

IMPORTANT: Remember that high pressure spray

can gouge soft woods, damage other
materials and loosen grout.

9. Slide nozzle collar to the rear (E) to place in high
pressure position. With the nozzle approximately 6 to
10 inches (15 to 25 cm) and at an angle to the surface,
power rinse the area from the top down.

10. If surface is not clean, repeat above procedures.

IMPORTANT: To avoid damage and contamination with

other detergents, siphon a gallon (3.78 L)
of clear water through the system after
each use.

C

B

E

A

D

24 Operator’s Manual

Operating the Washer

SHUTDOWN

IMPORTANT: Shutdown procedures should be followed

at the end of each cleaning operation.

1. If a detergent was used, place detergent inlet strainer
in CLEAN water and operate trigger to spray water for
a period of three minutes. This will flush the system of
detergents and help prevent the detergent valve from
sticking or corrosion.

2. Turn unit off and unplug washer.

3. Turn inlet water supply off. Squeeze trigger momentarily
to relieve pressure. Disconnect hoses.

4. Allow motor to cool, then wipe washer down with a damp
cloth.

Operator’s Manual 25

Troubleshooting

Symptom Problem Solution

Low Nozzle Pressure. Unit not properly primed. Prime unit.

Insufficient inlet water supply. Check water supply requirements.
(See Service Section.)

Partially plugged water inlet screen. Clean inlet screen. (See Service
Section.)

Kink in water inlet hose. Remove kink.

Nozzle set for low pressure. Slide wand collar rearward.

Worn nozzle. Replace nozzle.

Worn pump components. See your John Deere dealer.

Unloader valve recirculating. See your John Deere dealer.

No Pressure or Fluid at Nozzle. Unit not properly primed. Prime unit.

Plugged water inlet screen. Clean or replace inlet screen.

Kink in water inlet hose. Remove kink.

Closed water supply. Turn on water supply. Check supply
hose for leaks or blockage.

Plugged nozzle. Inspect and clean or replace nozzle.

Unloader valve recirculating. See your John Deere dealer.

Pump Surges or Fluctuates, Pump unit not properly primed. Prime pump.
Giving Low Nozzle Pressure.

Insufficient inlet water supply. Check water supply requirements.

Plugged nozzle. Inspect and clean or replace nozzle.

Internal pump problem. See your John Deere dealer.

Unloader valve recirculating. See your John Deere dealer.

Air in system (after priming). See your John Deere dealer.

Motor Will Not Come On When No power at receptacle. Check electrical power fuse or circuit
Switch is Pressed. breaker.

Motor overload protector (on/off) Allow motor to cool and try again.
switch) tripped. Check voltage requirements. Contact
your John Deere dealer if condition
persists.

Switch malfunction. See your John Deere dealer.

Faulty motor. See your John Deere dealer.

26 Operator’s Manual

Troubleshooting

Symptom Problem Solution

Motor Shuts Off - GFCI Trips. Power interruption. Reset GFCI. If problem continues,

contact your customer service or have
electrical system checked by a
qualified electrician.

Electrical short in power cord or in Reset GFCI. Try again. If problem
washer. persists, do not operate.

Contact your

customer service.

Motor Shuts Off - Trips On-Off Excessive discharge pressure Inspect and clean or replace nozzle.
Switch. caused by partially clogged nozzle.

Low voltage. Check electrical system requirements.
Check extension cords for proper
gauge.

Internal pump malfunction. See your John Deere dealer.

Water Continues to Flow from Spray gun valve malfunction.

Replace gun.

Nozzle after Gun Trigger is
Released.

Motor Hums - Does Not Turn. Pump plungers - sticking to Use a 4 mm hex wrench to manually

packing due to drying. turn and free pump. (See Service
Section.)

Motor malfunction. See your John Deere dealer.

Fan Spray is uneven or Clogged nozzle. Clean nozzle. (See Service Section.)
distorted.

Clogged fan spray shutters. Clean fan shutters.

Pump Oil is Milky or White. Water in oil. Change oil. Do not direct spray at

washer.

Does not draw soap. Nozzle not in “soap” position. Push adjustable colar forward. (See
“Adjusting Spray Nozzle Pressure
Pattern”.)

Too many hose extensions in use. Use only one hose extension.

Operator’s Manual 27

Service

TE S T I N G GR O U N D FA U LT CI R C U I T
INTERRUPTER (GFCI)

CAUTION: Ground Fault Circuit Interrupter (GFCI)
MUST be tested before each use of the washer.

If the results in each one of the following steps is
not as described, shut washer off immediately. DO
NOT operate until the washer has been inspected
by a qualified electrician or your dealer.

1. Plug GFCI into grounded receptacle. Connect high
pressure outlet hose and turn on water supply.

2. Press and release “RESET” button (A) to verify power
to the washer.

3. Press “TEST” button (B). Red indicator bar (C) on reset
button should appear. (Power to the washer should be
interrupted.)

4. Press and release the “RESET” button. Power should
be restored to the washer.

C
B

A

C

A

B

NOTE: GFCI test instructions are also found on the front

of the GFCI.

CLEANING INLET WATER

CAUTION: Disconnect power cord from electrical
receptacle before cleaning inlet screen.

IMPORTANT: Do not operate washer with water inlet

screen removed. Foreign material may
enter and damage pump or valves.

Inspect the water inlet screen (A) (inside brass fitting)
periodically for buildup of scale, grit and dirt. Clean as
necessary. If it is corroded or broken, replace.

CLEANING DETERGENT HOSE STRAINER

Check detergent hose strainer for detergent or contaminant
buildup.

A

Remove strainer from hose and back flush with clean water
and a stiff bristle brush.

NOTE: If strainer frequently becomes plugged, check
detergent to be sure it is thoroughly mixed.

28 Operator’s Manual

Service

CHECKING WATER PUMP OIL LEVEL

IMPORTANT: If oil is white or foaming, water is in the

oil reservoir. Change oil.

NOTE: Wa t e r in oil occurs as a result of sp r a y or

condensation. Milky oil is not indicative of a pump
malfunction.

1. Put unit on level surface.

2. Oil level should be at the center of sight glass (A).

3. Add oil if necessary with HYGARD® or SAE30W non­detergent oil. Do not overfill.

CHANGING WATER PUMP OIL

IMPORTANT: Change pump break-in oil after first 25

hours of operation and at 250 hour intervals
thereafter.

1. Place unit on level surface.

2. Run unit for a few minutes to warm oil.

3. Stop washer. Use an 22 mm deep well socket to remove
drain plug (A) to drain oil into container. Install plug.
Do not pollute; dispose of waste oil properly.

A

A

4. Remove vented plug (A). Fill pump with 11 oz.
HYGARD
should be at the center of sight glass. Replace plug.

Operator’s Manual 29

®

or SAE30W non-detergent oil. Oil level

A

Service

CLEANING OR R E P L A C I N G N O Z Z L E
ORIFICE

CAUTION: To avoid injury from high pressure
spray, nozzle wand MUST be disconnected from
gun before servicing.

1. Rotate nozzle collar (A) to open shutter.

2. Insert cleaning tool (B) (provided) into orifice and turn.

3. Flush nozzle wand with water.

4. If nozzle can not be cleaned thoroughly, insert a

2.0 mm hex wrench (C) (provided) into orifice, turn
counterclockwise and remove orifice.

5. Check orifice for wear or damage; clean or replace if
necessary.

B

A

C

CLEANING OR REPLACING ADJUSTABLE
FAN SHUTTERS

CAUTION: To avoid injury from high pressure
spray, nozzle wand MUST be disconnected from
gun before servicing.

CAUTION: Fan shutter metal edges are extremely
sharp. Wear gloves.

1. Slide nozzle collar rearward.

2. Gently pry tabs (B) open and remove nozzle end (A).

3. Clean regulator and fan shutter assembly (C).

4. Squeeze nozzle end tabs inward, and slide nozzle end
back over nozzle assembly.

A

B

C

30 Operator’s Manual