Shark BG-3020 Service manual

SHARK PRESSUREWASHERS ■ 4275 N.W. Pacific Rim Blvd. ■ Camas,WA 98607 ■ USA
For technical assistance or the Shark Dealer nearest you, call 1-800-771-1881.
MODEL: BG
OPERATING INSTRUCTION
AND PARTS MANUAL
■ BG-3020 ■ BG-3025 ■ BG-3030
■ BG-3525 ■ BG-3530 ■ BG-3535 ■ BG-5030

2
MACHINE SPECIFICATIONS
Shark BG Manual • Form #97-6125 • Revised 5/03
●●
●●
●PumpVolume At Pump Head:
BG-3020 3.0 GPM
BG-3025 2.8 GPM
BG-3030 3.0 GPM
BG-3525 3.6 GPM
BG-3530 3.5 GPM
BG-3535 3.3 GPM
BG-5030 4.8 GPM
●●
●●
●Pump Pressure At Pump Head:
BG-3020 2000 PSI
BG-3025 2500 PSI
BG-3030 3000 PSI
BG-3525 2500 PSI
BG-3530 3000 PSI
BG-3535 3500 PSI
BG-5030 3000 PSI
● ●
● ●
● Machine Dimensions: BG-3020 Length = 39" Width = 31" Height = 35"
BG-3025 Length = 39" Width = 31" Height = 35"
BG-3030 Length = 39" Width = 31" Height = 35"
BG-3525 Length = 39" Width = 31" Height = 35"
BG-3530 Length = 39" Width = 31" Height = 35"
BG-3535 Length = 39" Width = 31" Height = 35"
BG-5030 Length = 39" Width = 31" Height = 35"
● ●
● ●
● ShippingWeight:
BG-3020 255 Lbs.
BG-3025 255 Lbs.
BG-3030 255 Lbs.
BG-3525 255 Lbs.
BG-3530 255 Lbs.
BG-3535 255 Lbs.
BG-5030 255 Lbs.

3
CONTENTS
Shark BG Manual • Form #97-6125 • Revised 5/03
SERIAL NUMBER:
DATE PURCHASED:
FOR SALES AND SERVICE, PLEASE CONTACT:
Introduction............................................................. 4
Machine Safety.................................................... 4-5
Pre-Operation Check.............................................. 5
Set-Up Procedures ................................................. 5
ComponentIdentification ........................................ 6
Operating Instructions ............................................ 7
Shut Down Procedures........................................... 7
GeneralWashingTechniques ................................. 7
HowTo Use the Detergent Injector ......................... 8
ExplodedView, Models 3020, 3025 ...................... 9
ExplodedView, Parts List ................................ 10-11
ExplodedView All Models Except 3020, 3025 .... 12
ExplodedView, Parts List ................................ 13-14
Hose & Spray Gun Assembly (All Models)............ 15
Troubleshooting ............................................... 16-17
PreventativeMaintenance .................................... 18
Oil Change Record ............................................... 18
Storage................................................................. 19
Warranty

4 BG SERIES PRESSUREWASHER OPERATOR’S MANUAL
Shark BG •97-6125 • Rev. 5/03
INTRODUCTION
Thank you for purchasing a Shark Pressure Washer.
This manual covers the operation and maintenance of
the BG-302031, BG-302531, BG-352531, BG-353031,
BG-353531, BG-503021, BG-302037, BG-302537,
BG-352537, BG-353037, BG-353537, BG-303077 and
BG-503027 washers. All information in this manual is
based on the latest product information available at the
time of printing.
Shark reserves the right to make changes at any time
without incurring any obligation.
The BG Series was designed for maximum
use of 8 hours per day, 5 days per week.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this Shark pressure washer.Warning infor-
mationshould be emphasizedandunderstood.Ifthe op-
eratorisnot fluentinEnglish,the manufacturer’s instruc-
tions and warnings shall be read to and discussed with
theoperatorin the operator’snativelanguage bythe pur-
chaser/owner, making sure that the operator compre-
hends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’instructions.
Theoperatormustknowhowto stop themachine quickly
and understand the operation of all controls.Never per-
mitanyonetooperatethe enginewithout properinstruc-
tions.
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.
MACHINE SAFETY
CAUTION:To reduce the riskof in-
jury, read operating instructions
carefully before using.
1. Read the owner's manual thor-
oughly.Failure tofollowinstruc-
tions could cause malfunction
of the machine and result in
death,seriousbodilyinjuryand/
or property damage.
2. All installations must comply with local codes.Con-
tact your electrician, plumber, utility company or the
selling distributor for specific details.
WARNING: Risk of asphyxiation
—Use this product only in a well
ventilated area.
3. Avoid installing machines in
small areas or near exhaust
fans.Exhaust contains poison-
ous carbon monoxide gas;
exposure may cause loss of
consciousness and may lead
to death. It also contains
chemicalsknown,incertain quantities,tocausecan-
cer, birth defects or other reproductive harm.
WARNING: Flammable liquids
cancreatefumes which can ignite
causing property damage or se-
vere injury.
WARNING: Risk of fire —Do not
add fuel when the product is
operating.
WARNING: Risk of explosion —
Do not spray flammable liquids.
4. Do not place machine near flammable objects as
the engine is hot.
5. Allowengineto coolfor2 minutesbeforerefueling.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.)
Refuel gasoline engines on mobile or portable
equipment:
a. outdoors;
b. with the engine on the equipment stopped;
c. with no source of ignition within 10 feet of the
dispensingpoint; and
d. withanallowancemadeforexpansionofthefuel
should the equipment be exposed to a higher
ambienttemperature.
In an overfilling situation, additional precautions are
necessary to ensure that the situation is handled in
a safe manner.
WARNING: High pressure stream
of water that this equipment can
produce can pierce skin and its
underlying tissues, leading to
serious injury and possible
amputation.
WARNING
HIGH PRESSURE
SPRAY CAN PIERCE
SKIN ANDTISSUES.
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
RISK OF
ASPHYXIATION.
USE ONLY IN A WELL
VENTILATED AREA.
WARNING
READ OPERATOR’S
MANUAL
THOROUGHLY
PRIORTO USE.
CAUTION

BG SERIES PRESSUREWASHER OPERATOR’S MANUAL
5
Shark BG •97-6125 • Rev. 5/03
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
fly at high speeds.To avoid per-
sonal injury, eye safety devices
must be worn.
6. Eyesafetydevicesandfootpro-
tection must be worn when us-
ing this equipment.
7. Highpressuredevelopedbythesemachineswillcause
personal injury or equipment damage. Use caution
when operating. Do not direct discharge stream at
people, or severe injury or death will result.
8. Never make adjustments on machine while in op-
eration.
9. Do not operate with spray gun in the off position for
extensive periods of time as this may cause dam-
age to the pump.
10. The best insurance against an accident is precau-
tion and knowledge of the machine.
11. Shark will not be liable for any changes made to our
standard machines, or any components not pur-
chased from Shark.
12. Read engine safety instructions provided.
WARNING: Keep water spray
away from electrical wiring or fa-
tal electric shock may result.
13. Never run pump dry or leave
spray gun closed longer than
5 minutes.
14. Do not allow children to oper-
atethe pressurewasheratany
time.
15. Inletwater supplymustbe cold
and clean fresh water.
PRE-OPERATION CHECK
❑Checkpump oillevel.(Use SAE30Wnon-detergent
oil).Dipstick is located on top of pump.
❑Cold water supply (minimum 6 GPM, 5/8", 20 PSI)
❑Hose, wand, nozzle (nozzle size per serial plate)
❑Water filter (intact, non restrictive)
❑Fuel (unleaded 86 or higher octane)
❑Open spray gun to relieve pressure before starting.
❑Engine oil (SAE 10W30)
SET-UP PROCEDURES
1. Attach a 5/8" garden hose to inlet connector. Mini-
mum flow should be 6 GPM.
2. Attach high pressure hose to discharge nipple using
quickcoupler. Lockcouplersecurelyintoplacebypull-
ing back coupler collar and inserting it onto discharge
nipple, then pushing collar forward to lock in place.
WARNING
PROTECTIVE
EYEWEAR AND
CLOTHING MUST
BE WORN.
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL
WIRING.
Pressure
Hose
Filter
Garden
Hose
Inlet Connector
Collar Discharge
Nipple
Dipstick
Filler Cap/Dipstick
Upper Limit
Lower Limit
3. Attach variable pressure wand to spray gun using
teflon tape on threads to prevent leakage.
4. Attach swivel connector on discharge hose to spray
gun using teflon tape on threads.
5. Remove oil plug on top of pressure washer pump
and replace with dipstick supplied. (This may be
installed from the factory.)
6. Check oil level on sight glass on back of pump. Oil
should be visible one half way up sight glass (30W
non-detergent).
7. Fill gasoline tank and check engine oil.
Notice: Running the engine with a low oil level can
cause engine damage.