Shark BG-282037, BG-252737, BG-304037, BG-353237, BG-303037 Operator's Manual

OPERATOR’S MAN U AL

MODEL ORDER #
BG-282037 1.107-142.0
BG-252737 1.107-143.0
BG-303037 1.107-144.0
BG-373537 1.107-145.0
BG-304037 1.107-146.0
BG-353237 1.107-159.0

To locate your local Shark Commercial Pressure Washer Dealer nearest you,

visit www.shark-pw.com

8.919-012.0

Introduction & Important Safety Information ......................................... 4-5

Component Identifi cation ......................................................................... 6

Assembly Instructions .............................................................................. 7

Operating Instructions...........................................................................8-9

Detergents & Cleaning Techniques ........................................................ 10

Shut Down and Clean-Up ...................................................................... 11

Storage .................................................................................................. 11

Troubleshooting ..................................................................................... 12

Adjusting Unloader Valves ..................................................................... 12

Preventative Maintenance ..................................................................... 13

Oil Change Record ................................................................................ 13

Models 142.0, 143.0 Exploded View ...................................................... 14

Models 142.0, 143.0 Exploded View Parts List .................................15-16

Models 144.0, 145.0, 146.0, 159.0 Exploded View ................................ 17

Models

Hose and Spray Gun Assembly ............................................................. 21

Specifi cations ....................................................................................22-23

KM.3 Pump Exploded View and Parts List .......................................24-25

KD.1 Pump Exploded View and Parts List ........................................26-27

VRT3 Unloader Exploded View & Parts List .......................................... 28

UU1 Unloader Exploded View & Parts List ............................................ 29

VBA 35 Unloader Exploded View & Parts List ....................................... 30

Warranty ................................................................................................31

144.0, 145.0, 146.0, 159.0

Exploded View Parts List

.............

18-20

CONTENTS

Model Number ______________________________

Serial Number ______________________________

Date of Purchase ____________________________
The model and serial numbers will be found on a decal attached

to the pressure washer. You should record both serial number and
date of purchase and keep in a safe place for future reference.

3

BG • 8.919-012.0 • Rev. 08/12

INTRODUCTION & IMPORTANT SAFETY INFORMATION

Thank you for purchasing this Pressure Washer.

We reserve the right to make changes at any time
without incurring any obligation.

Owner/User Responsibility:

The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer. Warning information

PRESSURE WASHER

should be emphasized and understood. If the operator
is not fl uent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with
the operator in the operator’s native language by the
purchaser/owner, making sure that the operator com­prehends its contents.

Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.

OPERATOR’S MANUAL

The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.

This manual should be considered a permanent

part of the machine and should remain with it if
machine is resold.

When ordering parts, please specify model and
serial number. Use only identical replacement
parts.

This machine is to be used only by trained op­erators.

WARNING

WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.

5. Avoid installing machines in
small areas or near exhaust

RISK OF
ASPHYXIATION: USE
THIS PRODUCT ONLY

IN A WELL

VENTILATED AREA.

fans. Exhaust contains poi­sonous carbon monoxide
gas; exposure may cause loss
of consciousness and may
lead to death. It also contains

chemicals known, in certain quantities, to cause

cancer, birth defects or other reproductive harm.

WARNING

WARNING: Risk of fi re. Do not
add fuel when the product is
operating.

WARNING: Risk of explosion —
do not spray fl ammable liquids.

RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING

MACHINE.

6. Do not place machine near
fl ammable objects as the en­gine is hot.

WARNING: This product contains
chemicals known to the state of California to cause
cancer and birth defects or other reproductive harm.
Operation of this equipment may create sparks that
can start fi res around dry vegetation. A spark arres­tor may be required. The operator should contact:
Local fi re agencies for laws or regulations relating
to fi re prevention requirements.

IMPORTANT SAFETY

INFORMATION

WARNING: To reduce the risk of
injury, read operating instruc­tions carefully before using.

1. Read the owner's manual
thoroughly. Failure to follow
instructions could cause mal-

READ OPERATOR’S

MANUAL THOROUGHLY

PRIOR TO USE.

2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.

3. Stay alert — watch what you are doing.

4. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specifi c details.

function of the machine and
result in death, serious bodily
injury and/or property dam­age.

7. Allow engine to cool for 1-2 minutes before refueling. If
any fuel is spilled, make sure the area is dry before
testing the spark plug or starting the engine. (Fire
and/or explosion may occur if this is not done.)

Gasoline engines on mobile or portable equipment

shall be refueled:

a. outdoors;

b. with the engine on the equipment stopped;

c. with no source of ignition within 10 feet of

the dispensing point; and

d. with an allowance made for expansion of the

fuel should the equipment be exposed to a
higher ambient temperature.

In an overfi lling situation, additional precautions are

necessary to ensure that the situation is handled
in a safe manner.

WARNING: Risk of injury. Disconnect battery
ground terminal before servicing.

8. Transport/repair with fuel tank EMPTY or with fuel
shut-off valve OFF.

4

BG • 8.919-012.0 • Rev. 08/12

IMPORTANT SAFETY INFORMATION

PRESSURE WASHER

WARNING

WARNING: Keep wand, hose, and
water spray away from electric
wiring or fatal electric shock may
result.

9. Do not spray water on or near
electrical components.

KEEP WATER

SPRAY AWAY FROM

ELECTRICAL WIRING.

WARNING

WARNING: Flammable liquids
can create fumes which can ig­nite, causing property damage
or severe injury.

WARNING: Risk of explosion —

RISK OF EXPLOSION:

DO NOT SPRAY

FLAMMABLE

LIQUIDS.

Do not spray fl ammable liquids.

10. Keep operating area clear of
all persons.

WARNING

WARNING: This machine exceeds

85 db appropriate ear protection
must be worn.

EAR PROTECTION

MUST BE WORN

WARNING

WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fl y at high speeds. To avoid
personal injury, eye, hand and
foot safety devices must be

USE PROTECTIVE

EYE WEAR

AND CLOTHING

WHEN OPERATING

THIS EQUIPMENT.

worn.

11. Eye, hand, and foot protection
must be worn when using this
equipment.

WARNING

WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.

12. To reduce the risk of injury,

TRIGGER GUN KICKS

BACK - HOLD WITH

BOTH HANDS

close supervision is necessary
when a machine is used near
children. Do not allow children

to operate the pressure washer. This machine

must be attended during operation.

WARNING

WARNING: High pressure devel­oped by these machines will
cause personal injury or equip­ment damage. Keep clear of
nozzle. Use caution when oper­ating. Do not direct discharge

RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.

stream at people, or severe in­jury or death will result.

13. Never make adjustments on

machine while in operation.

14. Be certain all quick coupler fi ttings are secured
before using pressure washer.

WARNING

WARNING: Protect machine from
freezing.

15. To keep machine in best
operating conditions, it is
important you protect machine
from freezing. Failure to protect

PROTECT FROM

FREEZING

machine from freezing could
cause malfunction of the

machine and result in death,
serious bodily injury, and/or property damage. Fol­low storage instructions specifi ed in this manual.

16. The best insurance against an accident is precau­tion and knowledge of the machine.

WARNING

WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos­sibility of a fall due to slippery

RISK OF INJURY

FROM FALLS WHEN

USING LADDER.

surfaces.

17. Do not overreach or stand on
unstable support. Keep good foot-

ing and balance at all times.

18. Do not operate this machine when fatigued or under
the infl uence of alcohol, prescription medications,
or drugs.

19. Inlet water must be clean fresh water and no hotter
then 90°F.

20. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.

21. Do not allow acids, caustic or abrasive fl uids to pass
through the pump.

22. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.

Follow the maintenance instructions
specifi ed in the manual.

OPERATOR’S MANUAL

5

BG • 8.919-012.0 • Rev. 08/12

COMPONENT IDENTIFICATION

Unloader

Pump Protector

Pump

PRESSURE WASHER

OPERATOR’S MANUAL

High Pressure

Hose

Straight

Through

Starter Grip

Wand

Detergent

Injector

Inlet

Screen

Pressure

Nozzle

Garden Hose

(not included)

Detergent

Bucket (not

included)

Pump — Develops high pressure.

Starter Grip— Used for starting the engine manu-

ally.

Spray Gun — Controls the application of water and
detergent onto cleaning surface with trigger device.
Includes safety latch.

Detergent Injector — Allows you to siphon and mix
detergents.

6

Wand — Must be connected to the spray gun.

High Pressure Hose — Connect one end to water

pump discharge nipple (detergent injector nipple) and
the other end to spray gun.

Note: If trigger on spray gun is released for more
than 1-2 minutes, water may leak from pump protec­tor. Warm water will discharge from pump protector
onto fl oor. This system prevents internal pump
damage from high temperatures.

BG • 8.919-012.0 • Rev. 08/12

ASSEMBLY INSTRUCTIONS

PRESSURE WASHER

Handle

Alignment

Holes

Frame

Assy.

STEP 1: Attach the handle to the

frame of the pressure washer. Note:
It may be necessary to move the
handle supports from side to side
in order to align the handle so it will
slide over the frame supports.

Spray

Gun

Safety

Latch

High Pressure

Hose

Carriage

Bolt

Nut

Washer

STEP 2: Insert the carriage bolt

through the holes from the outside
of the unit and attach a nut from
the inside of the machine. Tighten
nuts.

Pressure

Nozzle

Wand

Coupler

Bolts

Nut

Hose/Spray Gun
Storage Bracket

Studs

STEP 3: Attach the spray gun/hose

storage handle, and bracket to
handle. Tighten nuts.

Pressure

Nozzle

Wand
Collar

Wand

Coupler

OPERATOR’S MANUAL

STEP 4: Attach the high pressure

hose to the spray gun using tefl on
tape on hose threads.

High Pressure Hose

Coupler

Collar

Pump

Discharge

Fitting

STEP 7: Connect high pressure

hose to pump discharge fitting.
Push coupler collar forward until
secure.

STEP 5: Pull the spring-loaded
collar of the wand coupler back
to insert your choice of pressure
nozzle.

Cold

Water

Source

Garden

Hose

STEP 8: Connect garden hose to a

clean cold water source and open
supply valve completely. NEVER
use hot water.

Garden

Hose

Inlet Screen

STEP 6: Release the coupler col-

lar and push the nozzle and the
collar until the collar clicks or locks.
Pull the nozzle to make sure it is
secure.

STEP 9: Connect the garden hose to pump water inlet.
Inspect inlet screen.

CAUTION: Do not run the pump

without water or pump damage will result.

Pump

Water Inlet

7

BG • 8.919-012.0 • Rev. 08/12

OPERATING INSTRUCTIONS

Pump Oil

Dipstick

Engine Oil

Dipstick

PRESSURE WASHER

Oil Window

STEP 1: Check engine oil level. Oil level should be level with the bottom

of the oil fi ller neck. Be sure the machine is level when checking the oil
level. (Refer to the engine's operating manual included with machine.) We
recommend that the oil be changed after the fi rst 5 hours of use, then once

OPERATOR’S MANUAL

every 50 hours. Note: Improper oil levels will cause low oil sensor to shut
off engine. IMPORTANT! Do not run engine with high or low oil levels

as this will cause engine damage.

Gas

Tank

STEP 3: Fill gas tank with unleaded

gasoline. Do not use leaded gaso­line.

STEP 4: Trigger the spray gun to
eliminate trapped air then wait for a
steady fl ow of water to emerge from
the spray nozzle.

STEP 2: Remove shipping cap and
install oil dipstick. Check pump oil
level by using dipstick or observe oil
level in oil window (if equipped). Use
30 wt. (non detergent) oil.

Choke

Fuel

Valve

STEP 5: Move the fuel shut-off valve to the "On" posi-

tion. When the engine is not in use, leave the fuel valve
in the "OFF" position.

8

Choke

Lever

Fuel

Valve

STEP 6: Move the choke lever to the "Choke" position

(on a warm engine, leave the choke lever in the run
position). Move the choke lever to the "Closed" position.
To restart a warm engine, leave the choke lever in the
"Open" position.

BG • 8.919-012.0 • Rev. 08/12

OPERATING INSTRUCTIONS (CONT.)

On-Off
Switch

PRESSURE WASHER

OPERATOR’S MANUAL

STEP 7: Turn the engine switch to "On" position.

On Briggs engines, move the throttle lever to "Fast"
position, shown on engine as a rabbit.

Safety

Latch

WARNING! Never replace
nozzles without engaging the
safety latch on the spray gun
trigger.

The fi ve color-coded quick connect nozzles provide a wide array of
spray widths from 0° to 40° and are easily accessible when placed in the
convenient rubber nozzle holder, which is provided on the front of the
machine.

NOTE: For a more gentle rinse, select the white 40° or green 25° nozzle.
To scour the surface, select the yellow 15° or red 0° nozzle. To apply de­tergent select the black nozzle.

STEP 8: Pull the starter grip. If the engine fails to start
after 2 pulls, squeeze the trigger gun to release pressure
and repeat step. Return starter gently. After the engine
warms up enough to run smoothly, move choke to run
position and throttle to fast position.

CAUTION: Small engines may kick back. Do not hold
pull starter grip tightly in hand.

NOZZLES

9

BG • 8.919-012.0 • Rev. 08/12

WARNING

DETERGENTS & GENERAL CLEANING TECHNIQUES

WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau­sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.

PRESSURE WASHER

STEP 1: Connect detergent injector to discharge

nipple on machine. Connect high pressure hose to
injector with quick coupler. (Check to make sure lock­ing couplers are in proper position before applying
water pressure).

Discharge

Nipple

OPERATOR’S MANUAL

STEP 2: Use detergent designed

specifi cally for pressure washers.
Household detergents could dam­age the pump. Prepare detergent
solution as required by the manu­facturer. Fill a container with pres­sure washer detergent. Place the
fi lter end of detergent suction tube
into the detergent container.

STEP 3: With safety latch on spray
gun engaged, secure black detergent nozzle into quick
coupler.

NOTE: Detergent cannot be applied using red, yellow,
green or white nozzles.

STEP 4: With the engine run­ning, pull trigger to operate ma­chine. Liquid detergent is drawn
into the machine and mixed with
water. Apply detergent to work
area. Do not allow detergent to
dry on surface.

IMPORTANT: You must fl ush the detergent injection
system after each use by placing the suction tube
into a bucket of clean water, then run the pressure
washer in low pressure for 1-2 minutes.

10

Detergent

Injector

High Pressure

Hose

BG • 8.919-012.0 • Rev. 08/12

THERMAL PUMP PROTECTION

If you run the engine on your pressure washer for 1-2
minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach high tempera­tures. When the water reaches this temperature, the
pump protector engages and cools the pump by dis­charging the warm water onto the ground. This thermal
device prevents internal damage to the pump.

CLEANING TIPS

Pre-rinse cleaning surface with fresh water. Place de­tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not al­low detergent to dry on surface. If surface appears to
be drying, simply wet down surface with fresh water.
If needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweeping
motion keeping the spray nozzle approximately 1 foot
from cleaning surface. Use overlapping strokes as you
clean and rinse any surface. For best surface cleaning
action spray at a slight angle.

Recommendations:

• Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.

• If painted surfaces are peeling or chipping, use
extreme caution as pressure washer may remove
the loose paint from the surface.

• Keep the spray nozzle a safe distance from the
surface you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no damage is found, continue to pressure wash­ing.

CAUTION - Never use:

• Bleach, chlorine and other corrosive chemicals

• Liquids containing solvents (i.e., paint thinner,
gasoline, oils)

• Tri-sodium phosphate products

• Ammonia products

• Acid-based products

These chemicals will harm the machine and will dam­age the surface being cleaned.

RINSING

It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun. Remove black soap
nozzle from the quick coupler. Select and install the
desired high pressure nozzle. NOTE: You can also stop
detergent from fl owing by simply removing detergent
siphon tube from bottle.