Page 1
MODEL: STP
OPERATING INSTRUCTION
AND PARTS MANUAL
■ STP-2015 ■ STP-2310 ■ STP-3520
SHARK PRESSURE WASHERS
For technical assistance or the Shark Dealer nearest you, call 1-800-771-1881.
■■
■ 4275 N.W. Pacific Rim Blvd. ■ Camas, WA 98607 ■ USA
■■
Page 2
2
CONTENTS
●●
●
●●
Pump Volume At Pump Head:
STP-2015 1.9 GPM
STP-2310 2.1 GPM
STP-3520 3.5 GPM
●●
●
●●
Pump Pressure At Pump Head:
STP-2015 1500 PSI
STP-2310 1000 PSI
STP-3520 2000 PSI
●●
●
●●
Machine Voltage:
●●
●
●●
Total Machine Amperage:
STP-2015 20 Amps
STP-2310 15 Amps
STP-3520 22 Amps
●●
●
●●
Shipping Weight:
STP-2015 330 Lbs.
STP-2310 330 Lbs.
STP-3520 340 Lbs.
STP-2015 120V/1PH
STP-2310 120V/1Ph
STP-3520 230V/1Ph
● ●
●
● ●
Machine Dimensions: STP-2015 Length = 39" Width = 27" Height = 44"
STP-2310 Length = 39" Width = 27" Height = 44"
STP-3520 Length = 39" Width = 27" Height = 44"
SERIAL NUMBER:
DATE PURCHASED:
FOR SALES AND SERVICE, PLEASE CONTACT:
Shark STP Manual • Form 97-6153 • Revised 7/03
Page 3
MACHINE SPECIFICATIONS
3
Introduction ............................................................ 4
Important Safety Information ............................. 4-5
Installation ......................................................... 5, 7
Component Identification ...................................... 6
Starting and Operating Instructions ..................... 7
How To Use The Detergent Injector...................... 8
Preventative Maintenance..................................... 9
Maintenance and Service ................................ 9-11
STP Exploded View ........................................ 12-13
STP Exploded View Parts List ....................... 14-15
Control Panel Exploded View and Parts List ...... 16
Hose & Spray Gun Assembly and Parts List ..... 17
Downstream Injector Assembly and Parts List .. 18
Troubleshooting .............................................. 19-21
Maintenance Schedule........................................ 22
Oil Change Record .............................................. 22
Warranty
Shark STP Manual • Form 97-6153 • Revised 7/03
Page 4
4
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
INTRODUCTION
Thank you for purchasing a STP.
This manual covers the operation and maintenance
of the STP Series pressure washers. All information in
this manual is based on the latest product information
available at the time of printing.
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
should be emphasized and understood. If the operator
is not fluent 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.
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
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
2. All installations must comply with local codes. Contact your electrician, plumber, utility company or the
selling distributor for specific details.
To comply with National Electrical Code (NGPA 70)
and provide additional protection from risk of electric shock, this hot water converter is equipped with
a UL approved ground fault circuit interrupter (GFCI)
power cord.
CAUTION: 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 malfunction
of the machine and result in
death, serious bodily injury and/
or property damage.
WARNING
WARNING: Flammable liquids
can create fumes which can ignite
causing property damage or severe injury.
WARNING: Do not use gasoline,
crankcase drainings or oil con-
RISK OF FIRE.
DO NOT USE WITH
FLAMMABLE
LIQUIDS.
taining gasoline, solvents or alcohol. Doing so will result in fire
and/or explosion.
WARNING: Do not spray flammable liquids. Operate
only where an open torch is permitted.
3. This fuel burning machine shall be installed only in
locations where combustible dusts and flammable
gases or vapors are not present.
4. In these oil burning models, use only kerosene, No.1
home heating fuel, or diesel fuel.
WARNING
WARNING: Keep water spray,
wand and high pressure hose
away from electrical wiring or fatal electric shock may result. Read
warning tag on electrical cord.
5. To protect the operator from
KEEP WATER SPRAY
AWAY FR OM
ELECTRICAL
WIRING.
electrical shock, the machine
must be electrically grounded.
It is the responsibility of the
owner to connect this machine
to a UL grounded receptacle of proper voltage and
amperage ratings. Do not spray water on or near
electrical components. Do not touch machine with
wet hands or while standing in water. Always disconnect power before servicing.
CAUTION: Spray gun kicks back — hold with both
hands.
6. Grip cleaning wand of attached pressure washer securely with both hands before starting cleaner. Failure to do this could result in injury from a whipping
wand.
WARNING: High pressure stream
WARNING
of fluid that this equipment can
produce can pierce the skin and
its underlying tissues, leading to
serious injury and possible amputation.
HIGH PRESSURE
SPRAY CAN PIERCE
SKIN AND TISSUES.
7. High pressure developed by the
attached pressure washer can
cause bodily injury or damage.
Use caution when operating. Do not point the spray
gun at anyone or at any part of the body. This machine is to be used only by qualified operators.
8. Never make adjustments on machine while it is in
operation.
Shark STP • 97-6153 • Rev. 7/03
Page 5
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
5
WARNING
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
fly at high speeds.
9. Eye safety devices must be
PROTECTIVE
EYEWEAR AND
CLOTHING MUST
BE WORN.
WARNING
worn when using this equipment.
WARNING: Risk of asphyxiation
— Use this product only in a well
ventilated area.
10. When the machine is working,
do not cover or place in a closed
RISK OF
ASPHYXIATION.
USE ONLY IN A WELL
VENTILATED AREA.
WARNING
space where ventilation is insufficient.
WARNING: Risk of fire. Do not add
fuel when the machine is operating or still hot.
11. Machines with a spray gun
should not be operated with
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
the spray gun in the off position
for extended periods of time as
this may cause damage to the
pump. Check to make sure
burner shuts off when spray gun trigger is closed.
12. Protect from freezing.
13. To prevent a serious injury, make certain quick coupler on discharge hose has locked before using pressure washer.
14. Do not allow acids, caustic or abrasive fluids to pass
through the pump.
15. Inlet water must be cold and clean fresh water.
16. Do not allow CHILDREN to operate the pressure
washer at any time. THIS MACHINE MUST BE
ATTENDED DURING OPERATION.
17. The best insurance against an accident is precaution, and knowledge of the machine.
18. Do not operate this product when fatigued or under
the influence of alcohol or drugs. Keep operating area
clear of all persons.
19. We will not be liable for any changes made to our
standard machines, or any components not purchased from us.
20. Do not overreach or stand on unstable support. Keep
good footing and balance at all times.
21. Follow the maintenance instructions specified in the
manual.
22. When making repairs disconnect from electrical
source.
23. Turn burner off and open spray gun to allow water to
flow and cool coil to 100°F before turning machine
off.
24. Before disconnecting high pressure hose from
hot water outlet, turn off burner to allow water to cool
to 100°F, then turn off pump motor and water supply
and operate spray gun to relieve back pressure in
hose. This will prevent coil damage from thermal expansion.
CAUTION: This machine produces hot water and
must have insulated components attached to protect the operator.
INSTALLATION
Place machine in a convenient location providing ample
support, draining and room for maintenance.
This machine is intended for indoor use. Machine
must be stored indoors when not in use.
Location:
The location should protect the machine from damaging environmental conditions, such as wind, rain, and
freezing.
1. This machine should be run on a level surface where
it is not readily influenced by outside sources such
as strong winds, freezing temperatures, rain, etc.
It should be located to allow accessibility for refilling
of fuel, adjustments and maintenance. Normal
precautions should be taken by the operator of the
machine to prevent moisture from reaching the
electrical controls.
2. It is recommended that a partition be made between
the wash area and the machine to prevent water
spray from coming in contact with the machine. Excess moisture reaching any electric components or
electrical controls will reduce machine life and may
cause electrical shorts.
3. During installation of the machine, beware of poorly
ventilated locations or areas where exhaust fans may
cause an insufficient supply of oxygen. Sufficient
combustion can only be obtained when there is a
sufficient supply of oxygen available for the amount
of fuel being burned. If it is necessary to install a
machine in a poorly ventilated area, outside fresh
air may have to be piped to the burner and a fan
installed to bring air into the machine.
Avoid small locations or areas near exhaust fans.
Shark STP • 97-6153 • Rev. 7/03
Page 6
6
STP SERIES PRESSURE WASHER
COMPONENT IDENTIFICATION
OPERATOR’S MANUAL
CAUTION HOT WATER:
Must use insulated
spray gun and wand.
Nozzle
ON-OFF
Switch
Adjustable
Thermostat
Fresh Water
Faucet
(not included)
Garden Hose
(not included)
Nozzle Coupler
Discharge Nipple
Wand Holder
Downstream
Detergent Injector
Burner Chamber
Pump
Burner Motor
GFCI
Pressure
Switch
Unloader
Detergent Bucket
(not included)
Detergent
Suction Hose
Trigger
Variable Pressure
Insulated Wand
Shark STP • 97-6153 • Rev. 7/03
Control
Handle
Insulated
Spray Gun
High Pressure
Outlet Hose
Page 7
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
7
Electrical:
This machine, when installed, must be electrically
grounded in accordance to local codes. Check for proper
power supply using a volt meter.
Placement:
Do not locate near any combustible material. Keep all
flammable material at least 20 feet away.
Allow enough space for servicing the machine.
Local code will require certain distances from floor and
walls. (Two feet away from walls should be adequate.)
Water Source:
The water source for the pressure washer should be
supplied by a minimum 5/8" I.D. garden hose with a city
water pressure of not less than 30 PSI. If the water supply is inadequate, or if the garden hose is kinked, the
attached pressure washer will run very rough and the
burner will not fire.
Connection:
Connect the wand, nozzle, hose and spray gun (where
applicable). On pipe thread connections, use teflon tape
to avoid water leaks. (See Component Identification).
Venting:
Adding exhaust vent pipe to your oil fired burner is not
recommended because restricted air flow causes carbon buildup, which affects the operation, and increases
maintenance on the coil. If a stack must be used, refrain
form using 90° bends. If the pipe can not go straight up
then use only 45° bends and go to the next size pipe.
The overall pipe length must not exceed 6 feet in length.
STARTING AND OPERATING
4. Connect high pressure hose to discharge nipple by
sliding quick coupler collar back. (If detergent is to
be applied, insert a detergent injector as shown in
Component Identification).
5. Insert quick coupler onto discharge nipple and secure by pushing quick coupler collar forward.
6. Securely attach the desired high pressure nozzle into
wand coupler as described in steps 4 and 5.
7. Connect the power cord into the proper electrical
outlet, then push in the GFCI reset button (Refer to
serial plate for information.)
8. Grip spray gun handle securely and pull trigger. Then
turn variable pressure control handle counterclockwise.
9. Turn switch to pump position. When a steady stream
of water flows from the spray gun and wand, the
machine is ready for cold water cleaning by turning
the variable pressure control handle clockwise to
raise the pressure.
10. For hot water washing, turn the switch to the burner
position. (The burner will light automatically when
the trigger on the spray gun is pulled.)
To Stop:
1. If using the detergent injector, place the suction line
in a bucket of water allowing detergent to be flushed
from system.
2. Turn STP burner switch off and continue spraying
water, allowing the water to cool.
3. After water has cooled to less than 100°F, turn the
attached pressure washer off.
4. Turn garden hose water off. Open the spray gun to
relieve remaining pressure.
5. Protect from freezing.
INSTRUCTIONS
To Start:
CAUTION
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
Shark STP • 97-6153 • Rev. 7/03
1. STOP! Read operator's manual
before operating. Failure to read
operation and warning instructions may result in personal injury or property damage.
2. Connect water supply hose and
turn on water.
3. Check fuel tank and pump oil
levels.
Page 8
8
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
HOW TO USE THE
DETERGENT INJECTOR
WARNING
SOME DETERGENTS
MAY BE HARMFUL IF
INHALED OR
INGESTED.
1. Pull injector quick coupler collar back and secure on
discharge nipple. Injector valve body arrow should
point in direction of flow.
2. Connect high pressure hose to injector nipple securing quick coupler.
3. Start machine as outlined in Operating Instructions.
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.
The machine can siphon and mix detergents with the use of Shark's detergent injector kit.
4. Place detergent pick-up tube into container of detergent solution.
5. Turn pressure control handle counterclockwise on
the variable pressure wand. This lowers the pressure by directing the water flow through the soap
nozzle and allows the detergent injector to siphon
soap.
6. Open trigger spray gun. Water detergent ratio is
approximately 15 to 1.
7. When you finish washing, rinse by simply turning
the variable pressure wand control handle clockwise
to increase pressure.
NOTE: The detergent injector will not siphon with
water flowing through the high pressure nozzle at
the end of the wand.
8. For clean up, place detergent pick-up tube into container of clear water and follow steps 5 and 8 to prevent detergent deposits from damaging the injector.
Adjustable
Thermostat
Brass Soap
Nozzle
Rupture Disk
Discharge Nipple
Detergent Injector
Injector Discharge Nipple
Collar
Quick Coupler
Spray Gun
Trigger
Nozzle Quick
Coupler
Detergent
Pickup Tube
Variable Pressure
Shark STP • 97-6153 • Rev. 7/03
Variable Pressure
Wand (VP)
Control Handle
High Pressure
Hose
Page 9
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
9
PREVENTATIVE MAINTENANCE
1. Use clean fuel - kerosene, No. 1 home hearing fuel or
diesel fuel. Clean or replace fuel filter every 100 hours
of operation. Avoid water contaminated fuel as it will
seize up the fuel pump. De-soot coils monthly. Use
an additive if diesel is being used.
2. Check to see that the attached pressure washer water
pump is properly lubricated.
3. Follow Winterizing Procedures to prevent freeze damage to pump coils.
4. Always neutralize and flush detergent from system
after use.
5. If water is known to be high in mineral content, use a
water softener in your water system or de-scale as
needed.
6. Do not allow acidic, caustic or abrasive fluids to be
pumped through system.
7. Always use high grade quality cleaning products.
8. Never run pump dry for extended periods of time.
9. If machine is operated with smoking or eye burning
exhaust, coils will soot up, not letting water reach
maximum operating temperature. (See section on
Air Adjustments.)
10. Never allow water to be sprayed on or near engine
or burner assembly or any electrical component.
11. Periodically delime coils per instructions.
It is advisable, periodically, to visually inspect the burner.
Check air inlet to make sure it is not clogged or blocked.
Wipe off any oil spills and keep this equipment clean and
dry.
The areas around the Shark washer should be kept clean
and free of combustible materials, gasoline and other flammable vapors and liquids.
The flow of combustion and ventilating air to the burner
must not be blocked or obstructed in any manner.
MAINTENANCE AND SERVICE
Unloader Valves:
Unloader valves are preset and tested at the factory before shipping. Occasional adjustment of the unloader may
be necessary to maintain correct pressure. Call your
local dealer for assistance.
Winterizing Procedure:
Damage due to freezing is not covered by warranty. Adhere to the following cold weather procedures whenever
washer must be stored or operated outdoors under freezing conditions. During winter months, when temperatures
drop below 32°F, protecting your machine against freezing is necessary. Store machine in a heated room. If this
is not possible then mix a 50/50 solution of anti-freeze/
Shark STP • 97-6153 • Rev. 7/03
water into a 5 gallon bucket. Place a short section of
garden hose into bucket and connect it to machine. Elevate
bucket and turn pump on to siphon anti-freeze through
machine. If compressed air is available, an air fitting can be
screwed into the inlet connector and, by injecting compressed air, all water will be blown out of system.
High Limit Hot Water Thermostat:
For safety, each machine is equipped with a high limit
control switch. In the event that the temperature of the
water should exceed its operating temperature, the high
limit control will turn the burner off until the water cools.
Pumps:
Use only SAE 30W non-detergent oil. Change oil after
the first 50 hours of use. Thereafter, change the oil every
three months or at 500 hour intervals. Oil level should be
checked by using the dipstick found on top of the pump
or the red dot visible through the oil gauge window. Oil
should be maintained at that level.
Cleaning of Coils:
In alkaline water areas, lime deposits can accumulate
rapidly inside the coil pipes. This growth is increased by
the extreme heat build up in the coil. The best prevention
for liming conditions is to use high quality cleaning detergents. In areas where alkaline water is an extreme
problem, periodic use of Shark Deliming Powder (part
#9-028008) will remove lime and other deposits before
coil becomes plugged. (See Deliming Instructions for use
of Shark Deliming Powder.)
Deliming Coils:
Periodic flushing of coils is recommended.
1. Fill a container or optional float tank with 4 gallons of
water, then add 1 lb. of deliming powder. Mix thoroughly.
2. Remove wand assembly from spray gun and put spray
gun into container. Secure the trigger on the spray
gun into the open position.
3. Attach a short section (3-5 ft.) of garden hose to
machine to siphon solution from an elevated container. Turn pump switch on, allowing solution to be
pumped through coils back into the container. Solution should be allowed to circulate 2-4 hours.
4. After circulating solution flush entire system with
fresh water. Reinstall wand assembly to spray gun.
Removal of Soot in Heating Coil:
In the heating process, fuel residue in the form of soot
deposits may develop between the heating coil pipe and
block air flow which will affect burner combustion. When
soot has been detected on visual observation, the soot
on the coil must be washed off after coil has been removed using the following steps:
Page 10
10
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
1. Remove the tank head assembly by lifting the tank
head off.
2. Remove the two pipe nipples and associated fittings.
3. Lift the coil out of the outer wrap.
CAUTION: the coil weighs about 80 lbs. Use proper
lifting techniques.
4. Clean, repair and replace the coil by reversing the
above steps.
Coil Reinstallation
Reinstall by reversing the above steps 4 through 1.
Rupture Disk
If pressure from pump or thermal expansion should exceed safe limits, the rupture disk will burst, allowing high
pressure to be discharged through hose to ground. When
the disk ruptures, it will need to be replaced.
Fuel:
Use clean fuel oil that is not contaminated with water and
debris. Replace fuel filter and drain tank every 100 hours
of operation. Use Kerosene No. 1 or No. 2 Heating Fuel
(ASTM D306) or diesel only. NEVER use gasoline in your
burner tank. Gasoline is more combustible than fuel oil
and could result in a serious explosion. NEVER use crankcase or waste oil in your burner. Fuel unit malfunction
could result from contamination.
Ignition Circuit:
Periodically inspect wires, spring contact and electrodes
for condition, security and proper spacing. For transformer
test (CAUTION 10,000 VOLTS) use defect free insulated
screwdriver and keep fingers off blade! Lay blade across
one contact: OK if arc will span 1/2" between end of blade
and other contact (see following illustration).
Electrode Setting: Beckett
5/32" Gap
7/16"
1/16"
Top View
Electrode
Nozzle
Side View
Burner Nozzle:
Keep the tip free of surface deposits by wiping it with a
clean, solvent-saturated cloth, being careful not to plug
or enlarge the nozzle. For maximum efficiency, replace
the nozzle each season.
Fuel Control System:
The STP utilizes a fuel solenoid valve located on the fuel
pump to control flow of fuel to the combustion chamber.
This solenoid is activated by a pressure switch located
on the unloader valve. When an operator releases the
trigger on the spray gun, the pressure drops, allowing the
pressure switch to activate the fuel solenoid. The solenoid then closes, shutting off the supply of fuel to the combustion chamber. Controlling the flow of fuel in this way
gives an instantaneous burn or no burn situation, thereby
eliminating high and low water temperatures, and combustion smoke normally associated with machines incorporating a spray gun. Periodic inspection is recommended
to insure that the fuel solenoid valve functions properly.
This can be done by operating the machine and checking
to see that when the trigger on the spray gun is in the off
position, the burner is not firing.
Fuel Pressure Adjustment:
To adjust fuel pressure, turn the adjusting screw with a
screwdriver (located on the fuel pump) clockwise to increase, counterclockwise to decrease. Do not exceed
200 PSI.
Air Adjustment
Machines are preset and performance tested at the factory — elevation 100' above sea level. A one time correction for your location will pay off in economy, performance and extended service life. If a smoky or eye-burning exhaust is being emitted from the stack, two things
should be checked.
First, check the fuel to be certain that kerosene or No. 1
home heating fuel is being used.
Next, check the air adjustment on the burner. An oily,
black, smoky fire indicates a lack of air and the air band
should be moved to allow the air to flow through the burner.
Sharp, eye-burning fumes indicate too much air flowing
through the combustion chamber. The air band should be
moved to allow less air to flow through the burner.
To adjust: Start the machine and turn burner ON. Loosen
two locking screws found in the air shutter openings (refer to illustration) and close air shutter until black smoke
appears from burner exhaust vent. Note air band position. Next slowly open the air shutter until white smoke
just starts to appear. Turn air shutter halfway back to the
black smoke position previously noted. Tighten locking
screws.
Shark STP • 97-6153 • Rev. 7/03
Page 11
STP SERIES PRESSURE WASHER
FUEL AIR ADJUSTMENT
Air Shutter
Locking Screw
Air Shutter
Air Band
OPERATOR’S MANUAL
11
Air Shutter
Locking Screw
Air Band
Locking Screw
If the desired position cannot be obtained using only the
air shutter, lock the air shutter in as close a position as
can be obtained, then repeat the above procedure on the
air band setting.
Shark STP • 97-6153 • Rev. 7/03
Page 12
12
STP SERIES PRESSURE WASHER
STP SERIES
EXPLODED VIEW LEFT SIDE
OPERATOR’S MANUAL
49
(Reversed View
51
50
of Label)
82
63
78
48
83
80
47
79
62
81
44
56
44
55
46
45
42
19
19
43
44
54
84
40
53
52
39
41
35
36
37
38
42
(Reversed
View of Label)
58
For
Detail See
Control
Panel
Illus.
66
64
64
65
10
67
11
To Fuel
Tank
2
1
1
Shark STP • 97-6153 • Rev. 7/03
68
To
Fuel
Tank
59
60
2
69
11
57
70
61
73
74
76
3
71
75
Page 13
STP SERIES PRESSURE WASHER
STP SERIES
EXPLODED VIEW RIGHT SIDE
33
23
OPERATOR’S MANUAL
27
28,29
13
To Fuel
Filter
13
11
20
To
Burner
12
9
7
22
20
11
21
14
21
31
77
26
25
16
17
18
24
4
6
5
77
Enlarged
View
Overload
Button
3
72
2
1
32
30
15
15
8
7
34
Shark STP • 97-6153 • Rev. 7/03
1
4
3
2
Page 14
14
STP SERIES PRESSURE WASHER
STP SERIES
EXPLODED VIEW PARTS LIST
OPERATOR’S MANUAL
ITEM PART NO. DESCRIPTION QTY
1 90-20041 Collar, 5/8" Bore Shaft (3010) 4
2 4-0307 Wheel & Tire Assy, 6" Steel Rim
w/Tube 4
3 90-4005 Washer, 5/8", Flat, SAE 4
4 95-07104723 Axle, Rod 5/8" x 27.80" L 2
5 2-0115090 Tank, Fuel 6 Gal. Blank 1
6 2-01167 Cap, Fuel Tank, Plastic H60-AV 1
7 2-010061 Bushing, Rubber, Nitrile 2
8 2-10866 Hose Barb, 1/4" Barb x 3/8" Barb,
Double 1
9 2-30057 Valve, 1/4" Shut-Off 1
10 2-1085 Hose Barb, 1/4" Barb x 1/4" ML
Pipe 1
11 2-9040 Clamp, Hose, UNI .46 - .54 4
12 4-02100000 Hose, 1/4" Push-On,
Fuel Line 1 ft.
13 4-02100000 Hose, 1/4" Push-On,
Fuel Line 13"
14 2-30062 Valve, Anti-Siphon, Watts 8B 1
15 2-10942 Swivel, 1/2" MP x 3/4" GHF
w/Strainer (Legacy) 1
2-10943 Swivel, 3/8" MP x 3/4" GHF
w/Strainer (General) 1
16 2-1024 Elbow, 1/2" Street, Brass
(Legacy) 1
2-1023 Elbow, 3/8", Street (General) 1
17 2-00601 Elbow, 1/2" JIC x 3/8" Fem, 90° 1
18 2-30082 Pump Protector, 1/2 PTP
(Legacy) 1
2-300816 Pump, Protector, 3/8" PTP
(General) 1
19 2-000891 Nipple, 1/2" x 2-1/2", Galv.
SCH 80 2
20 90-1016 Bolt, 3/8" x 1", NC HH 4
21 90-4002 Washer, 3/8" SAE, Flat 4
22 5-1614 Pump, Legacy WMH-2021
(231007, 201507) 1
5-1621 Pump, Legacy WMH-2035-F
(352007) 1
5-23003 Pump, General T-9051-EBF
(231001, 201501) 1
5-2303 Pump, General, TT-2035 EBF
(352001) 1
ITEM PART NO. DESCRIPTION QTY
23 6-021720 Switch, Pressure, N/O, 1/4" NPT
SS 1
24 5-10462 Motor, 1.5 HP 115V 1725 RPM
(2310) 1
5-1073 Motor, 2HP 1PH 115V 1725 RPM
(2015) 1
5-1053 Motor, 5HP 1PH 230V 3450 RPM
(3520) 1
25 90-4001 Washer, 5/16", Flat, SAE 4
26 90-2001 Nut, 5/16", ESNA, NC 4
27 6-0104 Cord, Service, SOWA, 12/3
(2310, 2015) 2 ft
6-0108 Cord, Service, SEO, 10/3 (3520)
28 6-051595 Strain Relief, STRT, LQ TITE 3234
Large 1
29 6-05181B Locknut, 3/4" 8465 1
30 5-3151 Unloader, APR.S 3000,
5.3 @ 3000 (352007) 1
5-3024 Unloader, PA 6.5 GPM @ 2600
(231001, 201501, 352001) 1
5-3150 Unloader, APR.S 2300,
5.3 @ 2300 (231007, 201507) 1
31 2-1046 Plug, 1/4" Countersunk
(231007, 201507, 352007) 1
2-1044 Plug, 1/8" Countersunk
(231001, 201501, 352001) 1
32 15-070042532 Cap, Valve with 1/4" Gauge Port
w/O-Ring (231007, 201507,
352007) 1
1-190031 Cap, Valve, with 1/4" Gauge Port
(231001, 201501, 352001) 1
33 4-02047725 Hose, 3/8" x 25", 2 Wire,
Pressure Loop 1
34 10-020110 Label, Use Only Kerosene 1
35 95-07101225 Block, Discharge,
Brass 3/8" x 1/2" 1
36 2-3408 Disk, Rupture Assy, 8000 PSI 1
37 2-90041 Clamp, Screw, #16 Micro 1
38 4-02130050 Hose, 7/8" Push-On,
Conduit 1.66 ft
39 2-2007 Nipple, 3/8" x 3/8" NPT ST Male1
40 2-0031 Elbow, 3/8", Street 1
41 10-09004 Label, Hot Water Outlet 1
Shark STP • 97-6153 • Rev. 7/03
Page 15
STP SERIES PRESSURE WASHER
STP SERIES
EXPLODED VIEW PARTS LIST (CONTINUED)
OPERATOR’S MANUAL
15
ITEM PART NO. DESCRIPTION QTY
42 11-013 Label, Shark Logo Die Cut 2
43 95-07200129 Wrap, Outer Coil, Red 1
44 90-19710 Screw, 1/4" x 3/4" HH NC,
Whiz Loc 9
45 90-2022 Nut, Cage, 1/4" x 16 GA 5
46 95-07121218 Coil, Dura, 14.5" DIA, SCH 80 1
47 11-1043 Label, Warning, Text 1
48 10-02025A Label, Hot/Caliete w/Arrows
Warning 1
49 95-07290029 Tank Head Assy,
16" DIA x 8" Stack 1
50 7-014832 Insulation, Tank Head,
16" OD x 8" ID 1
51 90-50045 Clip, Retaining U-Type 4
52 2-00602 Elbow, 1/2" JIC x 1/2" Fem, 90° 1
53 95-07290053 Retainer, Burner Insulation 1
54 90-19960 Screw, 3/8" x 1-1/4" Whiz Loc 4
55 7-01482 Insulation, Tank Bottom,
1" Blanket 1
56 95-07104955 Assembly, Frame, MS 1
57 90-19711 Screw, 1/4" x 1/2" HH NC,
Whiz Loc 8
58 4-05088 Thermostat, Adjustable, 302°F 1
59 95-07290007 Tab, Outer Wrap 4
60 90-20231 Nut, Cage, 1/4" x 12 GA 8
61 90-2020 Nut, Cage, 3/8" x 12 GA 4
62 7-00028 Burner, Beckett, 230V AFG
(3520) 1
7-00009 Burner, AFG, 120V, F4 Cone 1
63 7-0101 Nozzle, Burner, 1.75 B 90°
(3520) 1
7-01244 Nozzle, Oil, HOL 1.00 A, 90° 1
64 90-20040 Nut, 3/8" Flange, Whiz Loc, NC 4
ITEM PART NO. DESCRIPTION QTY
65 6-01011 Cord, Service, SEO, 16/4,
Coleman 55"
66 6-0516 Strain Relief, 1/2" Metal,
Two Screw 1
67 2-1010 Nipple, 1/4" x 2-1/2", Brass 1
68 2-99050 Filter, Parker Fuel/Oil/H
(10 Micron), Generic 1
69 2-1089 Hose Barb, 1/4" Barb x 1/4" Pipe,
90° 1
70 10-9003 Label, Cold Water Inlet 1
71 10-08016 Label, Intended for Indoor Use 1
72 10-99078 Label, Motor Overload Reset,
Lexan 1
73 2-017 Bushing, .875 1
74 6-01062 GFCI, 120V 15A, w/36'
12-3 Cord (2310) 1
6-01060 GFCI, 120V 20A, w/36'
12-3 Cord (2015) 1
6-01059 GFCI, 240V 1PH 30A, w/36'
10-3 Cord (3520) 1
75 10-08018 Label, Warning, Service Cord 1
76 10-9999 Label, Clear Lexan,
2-1/4" x 4-1/2" 1
77 6-05134 Cable, TY, 48" 2
78 95-04106032 Bracket, Brake 1
79 95-07104828 Bracket, Brake Pad 1
80 95-07104829 Linkage, Brake 1
81 90-100472 Bolt, Carriage 4
82 90-2000 Nut, 1/4" ESNA 4
83 90-4000 Washer, 1/4" 12
84 7-01487 Insulation, Blanket, 18" x 52",
Fiberglass 1
O
2
Shark STP • 97-6153 • Rev. 7/03
Page 16
16
STP SERIES PRESSURE WASHER
CONTROL PANEL
EXPLODED VIEW
OPERATOR’S MANUAL
2
5
6
4
1
3
17
10
7
18
To
Thermostat
19
14
15
13
To Power
Source
To Pressure
Switch
11
12
13
12
To Burner
Motor
To Motor
ITEM PART NO. DESCRIPTION QTY
1 4-05088 Thermostat, Adjustable, 302°F 1
2 6-020201 Switch, 3 PS, 115V-230V, 1PH 1
3 95-07104957 Cover, Electric Box 1
4 11-0319 Label, Electric Box 1
5 90-1991 Screw, 10/32" x 1/2" BHSOC
Blk 8
6 10-08014 Label, Made in the USA 1
7 90-2018 Nut, Cage, 10/32" x 16 GA 8
8 See Page 17 Nozzle 4
9 2-0103 Grommet, Rubber,
Nozzle Holder 4
10 95-07104956 Box, Electric 1
11 6-05181A Locknut, 1/2" 2
12 6-05152 Stain Relief, STRT,
LQ TITE 3231 Small 2
7
5
8
9
16
2
20
ITEM PART NO. DESCRIPTION QTY
13 6-0516 Strain Relief, 1/2" Metal,
Two Screw 2
14 6-01270 Conduit, Corrugated, Tubing,
1/4" (14") 1
15 2-01403 Bushing, Snap, 5/8" 1
16 11-0317 Label, Control Panel 1
17 90-017 Nut, 10/32" Keps 3
18 90-1999 Screw, 10/32" x 3/4" BH
SOC CS 1
19 11-1042 Label, Ground 1
20 95-07104959 Panel, Control 1
90-1007 ▲ Bolt, 5/16" x 1", NCHH 4
90-4001 ▲ Washer, 5/16" Flat 8
90-2001 ▲ Nut, 5/16" ESNA 4
▲ Not Shown
1
Shark STP • 97-6153 • Rev. 7/03
Page 17
STP SERIES PRESSURE WASHER
HOSE AND SPRAY GUN ASSEMBLY
OPERATOR’S MANUAL
8
1
17
7
6
5
ITEM PART NO. DESCRIPTION QTY
1 2-2002 Coupler, 3/8" Female 1
2-0121 ▲ Quick Coupler O-Ring LG 1
2 4-02093450BC Hose, 50' x 3/8", 1 Wire, Blue,
w/Coupler 1
3 4-01246 Spray Gun, Shutoff, AP 1000 1
4 4-0111341A Wand, VP Zinc 1/4"
w/Coupler, w/Soap Nozzle 1
83-SSVPKIT ▲ AL Wand Repair Kit,
Stainless Seat 1
5 4-06540 Brass Soap Nozzle Only, 1/8" 1
6 2-2001 Coupler, 1/4" Male 1
2-0119 ▲ Quick Coupler O-Ring Sm 1
7 4-12803000 Nozzle SAQMEG 0003, Red
(2015) 1
4-12803015 Nozzle, SAQMEG 1503, Yellow
(2015) 1
4-12803025 Nozzle SAQMEG 2503, Green
(2015) 1
4-12803040 Nozzle, SAQMEG 4003, White
(2015) 1
2
4
3
ITEM PART NO. DESCRIPTION QTY
7 4-12804000 Nozzle, SAQMEG 0004, Red
(2310) 1
4-12804015 Nozzle, SAQMEG 1504, Yellow
(2310) 1
4-12804025 Nozzle, SAQMEG 2504, Green
(2310) 1
4-12804040 Nozzle, SAQMEG 4004, White
(2310) 1
4-12805000 Nozzle, SAQMEG 0005, Red
(3520) 1
4-12805015 Nozzle, SAQMEG 1505 Yellow
(3520) 1
4-12805025 Nozzle, SAQMEG 2505, Green
(3520) 1
4-12805040 Nozzle, SAQMEG 4005, White
(3520) 1
8 4-011184 Detergent Injector Assy,
3-5 GPM, 0.83 (3520) 1
4-011183 Detergent Injector Assy,
2-3 GPM, 0.70" (2015, 2310) 1
▲ Not Shown
Shark STP • 97-6153 • Rev. 7/03
Page 18
18
STP SERIES PRESSURE WASHER
DOWNSTREAM INJECTOR ASSEMBLY
OPERATOR’S MANUAL
1
3
4
2
ITEM PART NO. DESCRIPTION QTY
1 3-12021 Injector, Detergent,
Non-Adjust #3 (3520) 1
3-1202 Injector, Detergent,
Non-Adjust #2 (2015, 2310) 1
2 2-9040 Clamp, Hose, UNI .46 - .54 2
3 4-02080000 Tube, 1/4" x 1/2", Clear Vinyl /ft.6
4 2-1904 Strainer, 1/4", Hose Barb 1
Shark STP • 97-6153 • Rev. 7/03
Page 19
STP SERIES PRESSURE WASHER
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
OPERATOR’S MANUAL
19
BURNER WILL NOT
LIGHT
Disconnected or short in electrical
wiring
Burner motor thermal protector
tripped
ON-OFF switch defective Check continuity through burner switch.
Heavy sooting on coil and burner,
can cause interruption of air flow and
shorting of electrodes
Improper electrode setting Clean and test according to diagram in
Fuel not reaching combustion
chamber
Fuel solenoid malfunction Check by placing screwdriver inside coil then
Clogged burner nozzle Replace.
Water not turned on Turn on water to activate burner pressure switch.
Pressure switch malfunction Remove, test for continuity and replace as
All wire contacts should be clean and tight. No
breaks in wire.
If tripped, check voltage, connections and
extensions for cause. Check fuel pump shaft
rotation for binding, causing motor to overheat.
Clean as required.
operator's manual.
Check fuel pump for proper flow. Check solenoid
valve on machines with spray gun control for
proper on-off flow switch.
turn machine on, open spray gun and check for
magnetic pull.
needed.
MACHINE SMOKES
Improper fuel or water in fuel Drain tank and replace contaminated fuel.
Low fuel pressure Adjust fuel pump pressure to specifications.
Air leaks in fuel lines Check fuel lines for leaks or air bubbles. Tighten
or replace as needed.
Plugged or dirty burner nozzle Replace.
Faulty burner nozzle spray pattern Replace nozzle.
Heavy accumulation of soot on coils
and burner assembly
Misaligned electrode Realign electrodes to specifications.
Fuel filter partially clogged Replace as needed.
Obstruction in smoke stack Check for insulation blockage or other foreign
Soot build up on coils Clean coils with soot remover.
Lime build up in coils Clean inside of coils using coil cleaner.
Remove coils and burner assembly. Clean
thoroughly.
objects.
Shark STP • 97-6153 • Rev. 7/03
Page 20
20
STP SERIES PRESSURE WASHER
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
OPERATOR’S MANUAL
LOW WATER
TEMPERATURE
WATER
TEMPERATURE
TOO HOT
Improper fuel or water in fuel Drain fuel tank and replace with proper fuel.
Low fuel pressure Increase fuel pressure.
Weak fuel pump Check fuel pump temperature. Replace pump
if needed.
Fuel filter partially clogged Replace as needed.
Soot build up on coils Clean coils with soot remover.
Lime build up on coils Clean inside of coils usings coil cleaner.
Improper burner nozzle Call technical service for proper size.
Incoming water to machine warm or
hot
Fuel pump pressure too high Lower fuel pressure.
Fuel pump defective Replace fuel pump.
Detergent line sucking air Tighten all clamps. Check detergent line for
Defective high limit switch (thermostat) Replace.
Incorrect fuel nozzle size Call technical service for proper size.
Insufficient water supplied Check GPM to machine.
Lower incoming water temperature.
holes.
Restricted water flow Check nozzle for obstruction, proper size.
Shark STP • 97-6153 • Rev. 7/03
Page 21
STP SERIES PRESSURE WASHER
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
DETERGENT NOT
DRAWING
PUMP RUNNING
NORMALLY BUT
PRESSURE LOW ON
INSTALLATION
FLUCTUATING
PRESSURE
PUMP NOISY
Shark STP • 97-6153 • Rev. 7/03
Faulty pressure gauge Install new gauge.
Insufficient water supply Use larger garden hose; clean filter washer at water
inlet.
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 (where applicable)
Worn packing in pump Install new packing kit.
Fouled or dirty inlet or discharge
valves in pump
Worn inlet or discharge valves Replace with valve kit.
Air leak Tighten all clamps. Check detergent lines for holes.
Valve in the injector head may be
blocked, dirty or damaged
Filler screen on detergent suction
hose plugged
Dried up detergent plugging
metering valve
High viscosity of detergent Dilute detergent to specifications.
Hole in detergent line(s) Repair hole.
Low detergent level Add detergent if needed.
Discharge water temperature
above 180
Pump sucking air Check water supply and possibility of air seepage.
Valves sticking Check and clean or replace if necessary.
Unloader valve seat faulty Check and replace if necessary.
Nozzle incorrectly sized Check and replace if necessary (See serial plate for
Worn piston packing Check and replace in necessary.
Valves worn Check and replace if necessary.
Blockage in valve Check and replace if necessary.
Pump sucking air Check water supply and air seepage at joints in
Worn piston packing Check and replace if necessary.
Air in suction line Check water supply and connections on suction line.
Broken or weak inlet or discharge
valve springs
Excessive matter in valves Check and clean if necessary.
Worn bearings Check and replace if necessary.
o
F.
Adjust unloader for proper pressure. Install repair kit
when needed.
Clean inlet or discharge valves.
Clean or replace valve in injector.
Clean or replace.
Disassemble and clean thoroughly.
Lower discharge water temperature.
proper size).
suction line.
Check and replace if necessary.
OPERATOR’S MANUAL
21
Page 22
22
STP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
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 maintenance procedures will assist in preserving the performance of your equipment. Contact your Shark Pressure Washers dealer for maintenance. Regular preventative maintenance will add many hours to the life of your pressure
washer. Perform maintenance more often under severe conditions.
MAINTENANCE SCHEDULE
Replace Fuel Lines Annually
Pump Oil Inspect Daily inspect the oil level
Change After first 50 hours, then every 500 hours or annually
Clean Burner Filter Monthly (More often if fuel quality is poor)
Remove Burner Soot Annually
Burner Adjustment/Cleaning Annually
Descale Coil Annually (More often if required)
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects Annually
Clean Water Screen/Filter Weekly
Clean Float/Supply Tank Every 6 months
Replace HP Hose Annually if there is any sign of wear
Grease Motor Every 10,000 hours
Replace Burner Nozzle Annually
OIL CHANGE RECORD
Estimated Operating
Date Oil Changed
Month/Day/Year
Hours Since Last
Oil Change
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Shark STP • 97-6153 • Rev. 7/03
Page 23
STP PRESSURE WASHER
WARRANTY
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 manufacturers’ 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 specifications 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 PARTICULAR PURPOSE. SHARK does not authorize any other party, 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
Shark STP • 97-6153 • Rev. 7/03
Page 24
N.W. Pacific Rim Blvd. • Camas, WA 98607 • 1-800-771-1881
Form #97-6153 • Revised 7/03 • Printed in U.S.A.
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