Shark Pressure Washers DG-3022 Service manual

SHARK PRESSURE WASHERS
■
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: DG
OPERATING INSTRUCTION
AND PARTS MANUAL
■ DG-3022 ■ DG-3025 ■ DG-3030
■ DG-3530 ■ DG-3535 ■ DG-4040

2
MACHINE SPECIFICATIONS
●●
●●
●Pump Volume At Pump Head:
DG-3022 2.7 GPM
DG-3025 2.8 GPM
DG-3030 3.0 GPM
DG-3530 3.5 GPM
DG-3535 3.5 GPM
DG-4040 4.0 GPM
● ●
● ●
●
Machine Dimensions: DG-3022 Length = 32.5" Width = 19.5" Height = 23.5"
DG-3025 Length = 32.5" Width = 19.5" Height = 23.5"
DG-3030 Length = 32.5" Width = 19.5" Height = 23.5"
DG-3530 Length = 32.5" Width = 19.5" Height = 23.5"
DG-3535 Length = 32.5" Width = 19.5" Height = 23.5"
DG-4040 Length = 32.5" Width = 19.5" Height = 23.5"
●●
●●
●Pump Pressure At Pump Head:
DG-3022 2200 PSI
DG-3025 2500 PSI
DG-3030 3000 PSI
DG-3530 3000 PSI
DG-3535 3500 PSI
DG-4040 4000 PSI

3
CONTENTS
Shark DG Manual • Form #97-6124 • Revised 1/03
SERIAL NUMBER:
DATE PURCHASED:
FOR SALES AND SERVICE, PLEASE CONTACT:
Introduction............................................................. 4
Important Safety Information ............................... 4-5
Pre-Operation Check .............................................. 5
Set-Up Procedures ................................................. 5
Component Identification ........................................ 6
Operating Instructions ............................................ 7
Shut Down Procedures ........................................... 7
General Washing Techniques ................................. 7
How To Use the Detergent Injector ......................... 8
Exploded View ........................................................ 9
Exploded View, Parts List ................................. 10-11
Hose & Spray Gun Assembly & Parts List .............12
Troubleshooting ................................................. 13-14
Preventative Maintenance ......................................15
Oil Change Record ................................................. 15
Storage ..................................................................16
Warranty

4 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG • Rev. 1/03
INTRODUCTION
Thank you for purchasing a Shark Pressure Washer.
This manual covers the operation and maintenance of the
DG-302231, DG-302531, DG-303031, DG-353031,
DG-353531, DG-404021, DG-302237, DG-302537,
DG-303037, DG-353037, DG-353537, and DG-404027
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 DG Series was designed for maximum
use of 4 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-
mation should be emphasized and understood. If the op-
erator is not fluent in English, the manufacturer’s instruc-
tions and warnings shall be read to and discussed with
the operator in the operator’s native language by the pur-
chaser/owner, making sure that the operator comprehends
its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ 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.
IMPORTANT
SAFETY INFORMATION
CAUTION:To reduce the risk of in-
jury, read operating instructions
carefully before using.
1. Read the owner's manual thor-
oughly. Failure to follow instruc-
tions could cause malfunction
of the machine and result in
death, serious bodily injury and/
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
HIGH PRESSURE
SPRAY CAN PIERCE
SKIN AND TISSUES.
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
RISK OF
ASPHYXIATION.
USE ONLY IN A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation —
Use this product only in a well ven-
tilated area.
3. Avoid installing machines in
small areas or near exhaust
fans. Exhaust contains poison-
ous carbon monoxide gas; ex-
posure may cause loss of con-
sciousness and may lead to
death. It also contains detergents known, in certain
quantities, to cause cancer, birth defects, or other
reproductive harm.
WARNING: Flammable liquids can
create fumes which can ignite
causing property damage or
severe 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. Allow engine to cool for 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 refuelled:
(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 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 se-
rious injury and possible ampu-
tation.
READ OPERATOR’S
MANUALTHOROUGHLY
PRIOR TO USE.
CAUTION

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
5
Shark DG • Rev. 1/03
Dipstick
Lower Limit
Upper Limit
WARNING
PROTECTIVE
EYEWEAR AND
CLOTHING MUST
BE WORN.
WARNING: High pressure spray
can cause paint chips or other par-
ticles to become airborne and fly
at high speeds.
6. Eye safety devices and foot pro-
tection must be worn when us-
ing this equipment.
7. High pressure developed
by these machines will cause
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 it is in
operation.
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 purchased
from Shark.
12. Read engine safety instructions provided.
WARNING: Keep water spray away
from electrical wiring or fatal elec-
tric shock may result.
13. Never run pump dry or leave
spray gun closed longer than 2
minutes.
14. Do not allow children to operate
the pressure washer at any
time.
15. Inlet water supply must be cold and clean fresh
water.
PRE-OPERATION CHECK
❑Pump oil (SAE 30W non-detergent oil)
❑Cold, clean, fresh water supply
(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)
❑Engine oil (SAE 10W40)
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
quick coupler. Lock coupler securely into place by
pulling back coupler collar and inserting it onto dis-
charge nipple, then pushing collar forward to lock in
place.
3. Attach 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 on vented cap on
Comet pumps.
6. Check oil level on sight glass on side 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.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICALWIRING.
Dipstick
Sightglass
Discharge
Nipple
Collar
Inlet
Connector
Filter Pressure
Hose
Garden Hose

6 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG • Rev. 1/03
COMPONENT IDENTIFICATION
ALL MODELS
Pump — Develops high pressure.
Starter Grip — Used for starting the engine manually.
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.
Straight Through Wand w/Grip — Must be connected
to the spray gun.
High Pressure Hose — Connect one end to water pump
discharge nipple and the other end to spray gun.
Pump Protector — Cycles fresh cool water through
pump when recirculating water reaches 140°F.
NOTE: If trigger on spray gun is released for more
than 2 minutes, water will leak from valve.Warm wa-
ter will discharge from pump protector onto floor.
This system prevents internal pump damage.
Pressure
Nozzle
Wand
Spray Gun
Trigger
High Pressure
Hose
Detergent
Bucket
(not included)
Unloader
Garden Hose
(not included)
Detergent Injector
Pump
▲▲
▲▲
▲
Pump
Protector
Starter
Grip
Soap Nozzle
High Pressure
Nozzles
Inlet Strainer
Wand Grip
Detergent
Pick-Up Tube

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
7
Shark DG • Rev. 1/03
1 Foot
Spray
Nozzle
Quick
Coupler
Wand
Fuel Valve Lever
ON
OFF
Choke Lever
OPEN
CLOSED
Starter Grip
Engine Switch
OPERATING INSTRUCTIONS
1. Read engine warning and operating instructions.
2. Pull wand coupler collar
back and insert pressure
nozzle into coupler then
secure by pushing collar
forward to lock.
3. Turn on water at faucet and squeeze spray gun trig-
ger allowing water to flow until a steady stream
comes out of wand.
4. Move the fuel valve lever
to the ON position. Turn
the fuel valve lever to the
OFF position after stop-
ping engine.
5. To start a cold engine,
move the choke lever to
the CLOSED position.
To restart a warm en-
gine, leave the choke
lever in the OPEN po-
sition.
6. Turn the engine switch to the
ON position.
7. Open spray gun before pull-
ing the starter grip.
8. To start the engine pull the
starter grip lightly until you
feel resistance, then pull
briskly. Return the starter
grip gently.
CAUTION: Pull trigger on spray gun to relieve pres-
sure if machine does not start after one pull of the
starter grip.
CAUTION: Small engines may kick back. Do not hold
pull rope tightly in hand.
9. With the spray nozzle pointed away from you or any-
one else, press the trigger on the spray gun to ob-
tain pressurized spray.
SHUTDOWN PROCEDURES
1. If a detergent injector was used, flush all lines with
clean water to remove soap residue.
2. Turn off engine. Turn off water supply.
3. Squeeze spray gun trigger to relieve any pressure.
4. Disconnect water supply hose from washer.
CAUTION: Do not allow pump to run without water.
5. Disconnect all hoses to allow water to drain. Protect
from freezing.
CAUTION: Do not allow pump to run longer than
3 minutes without water. Disconnect all hoses to
allow water to drain.
CAUTION: With machine off, open spray gun to re-
lease pressure before removing discharge hose.
GENERAL WASHING
TECHNIQUES
Test pressure and spray pattern on hard surface (i.e. ce-
ment) to gauge distance and impact of water spray.
Hold spray nozzle approximately one foot from surface
being cleaned. For best surface cleaning action, spray
at a slight angle.
To change spray nozzle for a different pattern it is recom-
mended that you turn off engine and squeeze spray gun
trigger to release hose pressure. Pull back on quick cou-
pler at end of wand and exchange nozzle. Make sure
nozzle is seated securely. Restart engine.
Use the detergent injector to apply detergent.Wash from
the bottom and work up. Allow detergent to set
5-10 min. on surface. Rinse from top down.
NOTE: If pressure washer is running and not being
used for more than 2 minutes, turn off engine.

8 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG • Rev. 1/03
Soap Nozzle
Detergent Bucket
(not included)
Detergent
Injector
Discharge
Nipple
Detergent
Pick-up Tube
High Pressure
Hose
Spray
Gun
Trigger
Collar
Quick Coupler Collar
Pressure Nozzle
HOW TO USE THE
DETERGENT INJECTOR
WARNING: Some detergents may
be harmful if inhaled or ingested,
causing severe nausea, fainting
or poisoning. The harmful ele-
ments may cause property dam-
age or severe injury.
The machine can siphon and mix
detergents with the use of Shark's
detergent injector kit.
1. Pull injector quick coupler collar back and secure on
discharge nipple. Injector valve body arrow should
point in direction of flow.
2. Connect pressure discharge hose to injector nipple
securing quick coupler.
3. Start machine as outlined in Operating Instructions.
4. Place detergent pick-up tube into container of deter-
gent solution.
5. Install the brass soap nozzle provided with the in-
jector into the quick coupler of the wand.
6. Open spray gun. Water detergent ratio is approxi-
mately 15 to 1.
7. When you finish washing, rinse by simply releasing
the trigger on the spray gun, removing the soap
nozzle, and replacing the pressure nozzle back into
quick coupler.
NOTE: The detergent injector will not siphon with
the high pressure nozzle at the end of the wand.
8. For clean up, place detergent pick-up tube into con-
tainer of clear water and follow steps 5 and 6 to pre-
vent detergent deposits from damaging the injector.
Wand
WARNING
SOME DETERGENTS
MAY BE HARMFUL
IF INHALED OR
INGESTED
Inlet
Swivel
Wand Grip
Detergent
Strainer

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
9
Shark DG • Rev. 1/03
EXPLODED VIEW
6
22
7
15
14
8
14
13
25
5
12
28
27
34
16
33
23
15
14
13
4
12
19
12
33
21
18
17
32
120
14
30
2
11
10
3
35
29 29
24
31
26
12
3022, 3025
4
9
14
10
11
30
3
2

10 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG • Rev. 1/03
ITEM PART NO. DESCRIPTION QTY
3 5-3024 Unloader, General, Direct
(302231, 302531) 1
5-3025 Unloader, PA VB 75K47LT
(303031, 353031, 353531) 1
5-3028 Unloader, PA 8 GPM @4000 PSI
(404021) 1
5-3151 Unloader, APR 3000 (302237,
302537, 303037, 353037) 1
5-3152 Unloader, APR 35
(353537, 404027) 1
4 4-0303 Wheel & Tire Assy, 4" w/Tube 2
5 4-12803500 Nozzle, SACQMEG, 0003.5 Red
(3022, 3025, 3030, 3535) 1
4-12803515 Nozzle, SACQMEG,
1503.5 Yellow (3022, 3025,
3030, 3535) 1
4-12803525 Nozzle, SACQMEG, 2503.5
Green (3022, 3025, 3030, 3535)1
4-12803540 Nozzle, SACQMEG
4003.5 White (3022, 3025,
3030, 3535) 1
4-12804000 Nozzle, SACQMEG, 0004 Red
(3530, 4040) 1
4-12804015 Nozzle, SACQMEG,
1504 Yellow (3530, 4040) 1
4-12804025 Nozzle, SACQMEG, 2504 Green
(3530, 4040) 1
4-12804040 Nozzle, SACQMEG 4004 White
(3530, 4040) 1
6 4-16540 Nozzle Compl, QCEM-6540,
Brass (Soap) 1
7 2-0103 Grommet, Rubber,
Nozzle Holder 5
8 95-07200021 Handle, Assy, Grab 1
11-0309 ▲ Label, Nozzle, Warning, Opts1
9 2-300816 Pump Protector, 3/8" PTP
(302231, 302531) 1
2-30082 Pump Protector, 1/2" PTP
(302237, 302537, 3030, 3530,
3535, 4040) 1
10 2-2006 Nipple, 3/8" x 3/8" NPT ST FEM
(302231, 302237, 302531,
302537, 303037, 353037,
353537) 1
ITEM PART NO. DESCRIPTION QTY
1 5-0104 Engine, Honda, GX160K1QX2,
5.5 HP (3022) 1
5-01041 Engine, Honda, GX200K1QX2
6.5 HP (3025) 1
5-0102 Engine, Honda, GX270QA2
9 HP (3030) 1
5-0105 Engine, Honda, GX340KQAP2
11 HP (3530) 1
5-010721 Engine, Honda, GX390K1QA2,
13 HP (3535) 1
5-0306 Engine, Vanguard, 16 HP
Pull/Start (4040) 1
95-07101149 ▲ Guard, Muffler, 16 HP
Vanguard (4040) 1
76-807964 ▲ Muffler, Exhaust, 16 HP
Vanguard (4040) 1
95-07101214 ▲ Heat Deflector, 16 HP
Vanguard (4040) 1
90-805849 ▲ Screw, Hex, 1/4"-20 x 1/2"
(4040) 4
90-19711 ▲ Screw, 1/4" x 1/2" HH, NC,
Whiz Loc (4040) 4
90-20231 Nut, Cage, 1/4" x 12 Ga.
(4040) 4
95-071011491 ▲ Brace, Vanguard Muff
Bracket (4040) 2
2 5-23027 Pump, General TP2530
(302231, 302531) 1
5-2318 Pump, General, EZ-3035G
(303031) 1
5-2313 Pump, General, EZ-3040G
(353031) 1
5-2317 Pump, General, EZ-4040G
(404021) 1
5-23161 Pump, General, EZ-4035G34,
3.5 GPM @ 4000 PSI (353531) 1
5-1630 Pump, Legacy WMG 2625
(302237) 1
5-1631 Pump, Legacy WMG 2530
(302537) 1
5-1635 Pump, Legacy WMG 3030
(303037) 1
5-1640 Pump, Legacy TMG 3535
(353037) 1
5-1643 Pump, Legacy TMG 4040
(353537, 404027) 1
EXPLODED VIEW PARTS LIST

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
11
Shark DG • Rev. 1/03
ITEM PART NO. DESCRIPTION QTY
10 2-2007 Nipple, 3/8" x 3/8" NPT ST FEM
(303031, 353031, 353531) 1
2-20022 Nipple, 3/8" Female, 5000 PSI
(4040) 1
2-0006 ▲ Nipple, 3/8" Hex Steel
(4040) 1
11 2-10942 Swivel, 1/2" MP x 3/4" GHF
w/Strainer (302237, 302537,
3030, 3530, 3535, 4040) 1
2-10943 Swivel, 3/8" MP x 3/4" GHF,
w/Strainer (302231, 302531,
303031, 353031, 353531,
404031) 1
12 90-20041 Collar, 5/8" Bore Shaft 4
13 90-1020 Bolt, 3/8" x 2", NC, HH 4
14 90-4002 Washer, 3/8", Flat
(3022, 3025 Qty 10; 3030, 3530,
3535, 4040 Qty. 14)
90-4001 Washer, 3/8", Flat
(3022, 3025) 4
15 90-2002 Nut, 3/8" ESNA, NC
(3030, 3530, 3535 Qty. 10;
3022, 3025 Qty. 6; 4040 Qty 6)
16 90-1009 Bolt, 5/16" x 1-1/2" (3022, 3025) 4
90-1019 Bolt, 3/8" x 1-3/4"
(3030, 3530, 3535) 4
90-1010 Bolt, 5/16" x 1-3/4" (4040) 4
17 90-4001 Washer, 5/16" Flat (3022,
3025, 4040) 8
90-4002 Washer, 3/8" Flat
(3030, 3530, 3535) 8
18 90-2001 Nut, 5/16" ESNA, NC
(3022, 3025, 4040) 4
90-2002 Nut, 3/8" ESNA (3530, 3535,
3030) 4
19 10-02025A Label, "Hot/Caliente" w/Arrows
Warning 1
ITEM PART NO. DESCRIPTION QTY
20 10-02029 Label, Danger Cool Engine 1
21 95-0720025 Frame, Assy 1
22 2-01041 Pad, Soft Rubber, 50 Duro 2
23 95-07101136 Axle, 5/8" x 18" Long 1
24 2-1088 Barb, Hose, Elbow 90°
1/4" x 1/8" (General Pump, 3030,
3530, 3535, 4040) 2
25 4-02100000 Hose, 1/4" Push-on /in. (3030,
3530, 3535, 4040) 10
26 2-3100544 Valve, EZ Start (3030, 3530,
3535, 4040) 1
27 90-40125 Washer, 3/8" x 1", Steel 2
28 90-1017 Bolt, 3/8" x 1-1/4" 2
29 2-9040 Clamp, Hose, UNI .46 - .54
(3030, 3530, 3535, 4040) 2
30 90-1017 Bolt, 3/8" x 1-1/4"
(3030, 3530, 3535, 4040) 4
90-10074 Bolt (3022, 3025) 4
31 2-0031 Elbow, 3/8" Street (3030,
3530, 3535, 4040) 1
32 95-07141120 Key, 0.185 SQR x 1.75" 1
95-07141121 Key, 0.247 SQR x 2.125
(3030, 3530, 3535, 4040) 1
33 2-01403 Bushing, Snap, 5/8" 2
34 90-4006 Washer, 5/16" x 1-1/4", Fender
(3022, 3025) 1
35 2-1088 Barb, Elbow 90°, 1/4" x 1/8"
General Pump (303031, 303531,
353531, 404021) 1
2-1089 Hose Barb, 90°, 1/4" x 1/4"
Legacy Pump (303037, 353037,
353537, 404027) 1
▲ Not Shown
EXPLODED VIEW PARTS LIST (CON'T)

12 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG • Rev. 1/03
HOSE & SPRAY GUN ASSEMBLY
ALL MODELS
ITEM PART NO. DESCRIPTION QTY
1 2-2000 Coupler, 1/4" Female, Brass 1
2 4-0110413 Wand, Assy, Side Grip with
1/4" Coupler, 31.4", 5000 PSI 1
3 4-01246 Spray Gun, Shut-off, AP-1000 1
4 High Pressure Nozzle
(See Exploded View Parts List)
5 4-16540 Nozzle Compl, QCEM-6540,
Brass 1
6 4-02093450BC Hose, 3/8" x 50', 1 Wire,
w/ Coupler (3022,
3025, 3030, 3530) 1
ITEM PART NO. DESCRIPTION QTY
6 4-02073450RC Hose, 3/8" x 50', 2 Wire,
w/Coupler (3535) 1
4-02083450F Hose, 3/8" x 50', 2 Wire
w/Coupler (4040) 1
7 4-011183 Detergent Injector Assy, 0.70"
(3030, 3022, 3025) 1
4-011184 Detergent Injector Assy, 0.83"
(3530, 3535) 1
4-011186 Detergent Injector Assy,
5000 PSI (4040) 1
▲ Not Shown
4 - Pressure Nozzle
7
6
1
3
2
5 - Soap Nozzle

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
13
TROUBLESHOOTING
Shark DG • Rev. 1/03
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insufficient water supply Use larger supply hose; clean inlet water
screen. Open faucet.
Old, worn or incorrect spray nozzle Match nozzle number to machine and/or
replace with new nozzle.
Plumbing or hose leak Check plumbing system for leaks. Retape
leaks with teflon tape.
Faulty or misadjusted unloader valve Adjust unloader for proper pressure. Install
repair kit when needed. Call Shark technical
support.
Worn packing in pump Call Shark technical support.
Machine has been stored in freezing
temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Call Shark technical support
FLUCTUATING
PRESSURE
Worn pump valves Call Shark technical support.
Dirt in pump valves Call Shark technical support.
Pump sucking air Check all pump lines and connections.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high engine
RPM
Adjust engine throttle to lower RPM.
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is normal If excessive leaking occurs, call Shark
technical support.
PRESSURE
INCREASES WHEN
SPRAY GUN IS
CLOSED
Unloader valve not operating
properly
Call Shark technical service.
PRESENCE OF
WATER IN PUMP
OIL
Water sprayed at machine Change oil. Direct spray away from machine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal worn Call Shark technical support.

14 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
TROUBLESHOOTING
Shark DG •Rev. 1/03
PROBLEM POSSIBLE CAUSE SOLUTION
OIL SQUIRTS OUT OF
OIL CAP ON PUMP
Pump over filled with oil Maintain oil level at red dot on sight glass at
rear of pump or at top of notch on dipstick.
ENGINE OPERATES
FOR 15 MIN. THEN
STOPS
Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat of day Keep gas tank full to avoid vapor locking.
Obstruction in fuel filter Clean or replace fuel filter.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Call Shark technical service.
O-Ring plunger retainer worn Call Shark technical service.
Cracked piston Call Shark technical service.
OIL DRIPPING Oil seal worn Call Shark technical service.
WATER LEAKING
FROM PUMP
PROTECTOR
Spray gun closed with machine
running 2 minutes or longer
Open spray gun or turn off machine.
Excess water supply pressure Place a pressure regulator at end of 50'
garden hose.

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
15
Shark DG •Rev. 1/03
PREVENTATIVE MAINTENANCE
This pressure washer was produced with the best available materials and quality craftsmanship. However, you as the
owner have certain responsibilities for the correct care of the equipment. Attention to regular preventative mainte-
nance procedures will assist in preserving the performance of your equipment. Contact your Shark dealer for main-
tenance. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform mainte-
nance more often under severe conditions.
MAINTENANCE SCHEDULE
Engine Oil Inspect Daily
Change First month or 20 hours.
Every 100 hours or every 6 months after first month.
Filter Every 50 hours
Air Cleaner Inspect Every 50 hours
Clean Monthly
Engine Fuel Filter 500 hours or 6 months
Spark Plug Maintenance 300 hours or annually
Clean Fuel Tank(s) Annually
Replace Fuel Lines Annually
Pump Oil Inspect Oil level daily
Change After first 50 hours, then every 500 hours or annually
Replace High Pressure Nozzle Every 6 months
Replace Quick Connectors Annually
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
OIL CHANGE RECORD
Check pump oil and engine oil level before first use of your new pressure washer.

16 DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
Shark DG •Rev. 1/03
STORAGE
Pump Storage
CAUTION: Always store your pressure
washer in a location where the tem-
perature will not fall below 32°F (0°C).
The pump in this machine is suscep-
tible to permanent damage if frozen.
FREEZE DAMAGE IS NOT COVERED
BY WARRANTY.
If you must store your pressure washer in a location where
the temperature is below 32°F, you can minimize the
chance of damage to your machine by draining your ma-
chine as follows:
1. Stop the pressure washer and detach supply hose
and high pressure hose. Squeeze the trigger of the
spray gun to drain all water from the wand and hose.
2. Restart pressure washer and let it run briefly (about
5 seconds) until water no longer discharges from
the high pressure outlet.
Engine Storage
When the pressure washer is not being operated or is
being stored more than one month, follow these instruc-
tions:
1. Replenish engine oil to upper level.
2. Drain gasoline from fuel tank, fuel line, fuel valve
and carburetor.
3. Pour about one teaspoon of engine oil through the
spark plug hole, pull the starter grip several times
and replace the plug.Then pull the starter grip slowly
until you feel increased pressure which indicates
the piston is on its compression stroke and leave it
in that position. This closes both the intake and ex-
haust valves to prevent the inside of the cylinder
from rusting.
4. Cover the pressure washer and store in a clean, dry
place that is well ventilated away from open flame or
sparks.
NOTE: The use of a fuel additive, such as STA-BIL
®
,
or an equivalent, will minimize the formulation of fuel
gum deposits during storage. Such an additive may
be added to the gasoline in the fuel tank of the en-
gine, or to the gasoline in a storage container.
After Extended Storage
CAUTION: Prior to restarting, thaw out any possible
ice from pressure washer hoses, spray gun or wand.
Engine Maintenance
During the winter months, rare atmospheric con-
ditions may develop which will cause an icing
condition in the carburetor. If this develops, the
engine may run rough, lose power and may stall.
This temporary condition can be overcome by deflecting
some of the hot air from the engine over the carburetor
area.
NOTE: Refer to the engine manufacturer's manual
for service and maintenance of the engine.
CAUTION
CAUTION

DG SERIES PRESSURE WASHER
WARRANTY
Shark DG •Rev. 1/03
SHARK LIMITED NEW PRODUCT WARRANTY
PRESSURE WASHERS
WHAT THIS WARRANTY COVERS
All SHARK PRESSURE WASHERS are warranted by SHARK to the original purchaser to be free from defects in materials and
workmanship under normal use, for the periods specified below. This Limited Warranty is subject to the exclusions shown
below, is calculated from the date of the original purchase, and applies to the original components only. Any parts replaced
under this warranty will assume the remainder of the part’s warranty period. This warranty applies to the original purchaser and
is not transferable.
LIMITED LIFETIME PARTS WARRANTY:
Components manufactured by SHARK, such as frames, handles, coil wraps, float tanks, and belt guards. Forged brass pump
manifold. All heating coils will have a three year warranty. Internal components on the oil-end of all pressure washer pumps will
have a seven year warranty.
ONE YEAR PARTS WARRANTY:
All other components, excluding normal wear items as described below, will be warranted for one year on parts. Warranty on
these parts will be for one year regardless of the duration of the original component manufacturer’s part warranty.
WARRANTY PROVIDED BY OTHER MANUFACTURERS:
Motors, generators, and engines, which are warranted by their respective manufacturers, are serviced through these manufac-
turers’local authorized service centers. SHARK cannot provide warranty on these items.
WHAT THIS WARRANTY DOES NOT COVER
This warranty does not cover the following items:
1. Normal wear items, such as nozzles, guns, discharge hoses, wands, quick couplers, seals, filters, gaskets, O-rings,
packings, pistons, pump valve assemblies, strainers, belts, brushes, rupture disks, fuses, pump protectors.
2. Damage or malfunctions resulting from accidents, abuse, modifications, alterations, incorrect installation, improper
servicing, failure to follow manufacturer’s maintenance instructions, or use of the equipment beyond its stated usage
specifications as contained in the operator’s manual.
3. Damage due to freezing, chemical deterioration, scale buildup, rust, corrosion, or thermal expansion.
4. Damage to components from fluctuations in electrical or water supply.
5. Normal maintenance service, including adjustments, fuel system cleaning, and clearing of obstructions.
6. Transportation to service center, shop labor charges, field labor charges, or freight damage.
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE
While not required for warranty service, we request that you register your SHARK pressure washer by returning the completed
registration card. In order to obtain warranty service on items, you must return the product to an Authorized SHARK Dealer,
freight prepaid, with proof of purchase, within the applicable warranty period. If the product is permanently installed, you must
notify your Authorized SHARK Dealer of the defect. The Authorized Dealer will file a claim, which must subsequently verify the
defect. In most cases, the part must be returned to SHARK freight prepaid with the claim. For warranty service on components
warranted by other manufacturers, the Authorized Dealer can help you obtain warranty service through these manufacturers’
local authorized service centers. If you are unable to resolve the warranty claim satisfactorily, write to SHARK at 4275 N.W.
Pacific Rim Blvd., Camas, WA 98607, ATTN: Warranty Dept., detailing the nature of the defect, the name of the Authorized
Dealer, and a copy of the purchase invoice.
LIMITATION OF LIABILITY
SHARK’S liability for special, incidental, or consequential damages is expressly disclaimed. In no event shall SHARK’S liability
exceed the purchase price of the product in question. SHARK makes every effort to ensure that all illustrations and specifica-
tions are correct, however, these do not imply a warranty that the product is merchantable or fit for a particular purpose, or that
the product will actually conform to the illustrations and specifications. THE WARRANTY CONTAINED HEREIN IS IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF FITNESS FOR A PAR-
TICULAR PURPOSE. SHARK does not authorize any other par ty, including authorized Dealers, to make any representation or
promise on behalf of SHARK, or to modify the terms, conditions, or limitations in any way. It is the buyer’s responsibility to ensure
that the installation and use of SHARK products conforms to local codes. While SHARK attempts to assure that its products
meet national codes, it cannot be responsible for how the customer chooses to use or install the product.
SHARK PRESSURE WASHERS
4275 N.W. Pacific Rim Blvd. •Camas, WA 98607 •USA •1-800-771-1881

4275 N.W. Pacific Rim Blvd. •Camas, WA 98607 •1-800-771-1881
Form #97-6124 •Revised 1/03 •Printed in U.S.A.