Shark 925A, 925SS Operating Instructions And Parts Manual
MODEL 925A/925SS
OPERATING INSTRUCTIONS
Shark
Read instructions carefully before attempting to assemble, install, operate or service this pressure
washer. Failure to comply with instructions could result in personal injury and/or property damage!
R
SPECIFICATIONS
● Pump Volume At Pump Head: 3.0 GPM/180 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 239,000 BTU/Hr.
● Burner Fuel Pressure: 130 PSI
● Machine Power: 9.0 HP Gasoline Engine, Manual Start
● Machine Weight: 385 Lbs.
● Shipping Weight: 415 Lbs.
● Burner Exhaust Vent: 8"
● Machine Dimensions: Length = 47", Width = 31", Height = 45"
AND PARTS MANUAL
Output specifications are based on engine power curves at 100
meters above sea level and 25
dance with SAE J1349.
o
C ambient temperature in accor-
SHARK PRESSURE WASHERS
SERIAL NUMBER: 21 INVERNESS WAY EAST
ENGLEWOOD, CO 80112
1-800-771-1881
DATE PURCHASED:
FOR SALES AND SERVICE, PLEASE CONTACT:
WARNING
Read and observe to prevent severe personal injury or property damage.
● Check hoses, fittings, wand, trigger gun and
fuel connections daily for signs of wear,
cracks and looseness, and replace as
required.
● Keep all electrical components on
machine dry.
● Do not point wand or trigger gun at your-
self or at any person. Bodily injury may
result from water under high pressure.
● Do not block or tie trigger gun in open
position.
● Wear eye, ear, hand, foot, and skin protec-
tion at all times while operating pressure
washer.
● Do not place hands or feet on non-insu-
lated areas of the pressure washer when
starting gasoline engine.
● Do not fill engine fuel tank while engine is
running or hot. Let engine cool before
refueling or spontaneous fire may result.
Fuel spillage or vapors could ignite if
engine is hot.
● Disconnect spark plug and battery prior to
performing any maintenance.
● Do not store flammable liquids (gasoline,
diesel fuel, solvents, etc.) near pressure
washer or in non-ventilated areas.
● Use extreme caution when moving pres-
sure washer over rough or uneven surfaces.
● For permanent installation consult local
building codes for installation requirements. Licensed contractor may be
required.
● Troubleshoot machine prior to using
reset buttons or replacing blown fuses.
See Troubleshooting Guide.
● Pressure washers produce a kickback. To
prevent personal injuries due to falls use
auxiliary safety equipment.
● When applying detergents follow the
safety rules on the detergent label.
● Use detergent from a covered D.O.T.
approved container.
● Cleaning area should be provided with
adequate slopes and drainage. This will
reduce the possibility of a fall due to slippery surface.
● Avoid contact with non-insulated areas of
pressure washer to prevent the possibility
of severe burns.
● Do not allow machine to run unattended.
● Unauthorized machine modification or use
of non-approved replacement parts may
cause personal injury and/or property
damage and will void the manufacturer
warranty.
● Do not run machine indoors or in an
enclosed area, as exhaust fumes may be
hazardous to your health.
● This machine has been provided with
Warning and Instruction decals for the
safety of the operator. If these decals are
● Do not operate machine in areas where
flammable vapors, (gasoline, solvents, etc.)
may be present, as this machine may
removed or become damaged they should
be replaced. Contact your dealer for
replacement decals.
ignite the vapors.
Page 2 Shark 925A/925SS
DETERGENT
NOZZLE
DUAL LANCE WAND
TRIGGER GUN
PRESSURE
NOZZLE
PRESSURE HOSE
RELIEF VALVE BURNER EXHAUST VENT
NOZZLE HOLDERS
ENGINE
DETERGENT
INJECTOR
COIL DRAIN PLUG
OIL BURNER
BATTERY BOX
BURNER SWITCH
THERMOSTAT
CONTROL BOX
GARDEN HOSE
CONNECTOR
OIL BURNER
FUEL TANK
PUMP
DETERGENT INLET LINE
Figure 1 - Machine Component Layout
Page 3Shark 925A/925SS
ASSEMBLY
+
-
2. Assemble wand components as shown in Figure 3.
Unpacking
Unpack carefully. Wear safety glasses or goggles while
unpacking, assembling, or operating pressure washer. If
there are missing components or hidden damage,
immediately contact carrier concerning discrepancies.
1. Cut strapping band from pressure washer and pallet.
2. Remove pressure washer from pallet.
Parts Included
• Pressure Washer
• Pressure Hose
• Trigger Gun
• Dual Lance Wand
• Pressure Nozzle (3 ea.)
• Battery Terminal (2 ea.)
• Operating Instructions/Parts Manual
• Gasoline Engine Manual
Tools Required
• 1/2" Open End Wrench
• Flat Blade Screwdriver
DUAL LANCE WAND
TRIGGER GUN
Figure 3 - Trigger Gun/Dual Lance Wand
3. Make sure all plumbing connections are tight.
Battery
WARNING: Wear eye, hand and skin protection when
handling or connecting battery.
WARNING: Batteries generate explosive gases during normal battery operation. Do not expose the battery to flame or sparks as these gases may ignite.
Pressure Hose, Trigger Gun and Wand
1. Install the pressure hose on the pressure washer as
shown in Figure 2.
RELIEF VALVE
PRESSURE HOSE
WARNING: Battery fluid is highly acidic. If battery fluid
contacts skin or clothing, wash immediately with soap
and water. If battery fluid enters eye, immediately flood
eye with running cold water for at least 15 minutes
and get immediate medical attention.
1. Place battery in battery box (battery not included).
Use a standard 12 volt automotive battery. Select a
battery similar to the one in Figure 4 for proper fit
and installation.
8-3/4”
MAX
10-1/2”
MAX
6-3/4”
MAX
Figure 4 - Battery Dimensions
Figure 2 - Pressure Hose Installation
Page 4 Shark 925A/925SS
2. Install the provided battery terminals as shown in
Figure 5.
3. To reduce the possibility of sparking attach the wires
to the battery in the following order. Refer to Figure 5.
First attach the red wire from the voltage regulator
and the red wire from the control box to the positive
“+” terminal of battery. Next, attach the black wire from
the control box and the black wire from the voltage
regulator to the negative “-” terminal of the battery. To
disconnect the battery remove the wires in the opposite order as installed. Install battery box cover and
fasten in place.
be made between the wash area and the pressure washer
to prevent direct spray from the wand from coming in
contact with the pressure washer. Moisture reaching the
equipment will reduce the pressure washer’s service life.
All installations must comply with the local codes covering
such installations.
Venting
DANGER: Do not run machine indoors or in an
enclosed area, as exhaust fumes may be hazardous
to your health.
BOX STRAP
RED WIRE FROM
CONTROL BOX
RED WIRE
FROM VOLTAGE
REGULATOR
12 VOLT BATTERY
BATTERY BOX
BLACK WIRE
FROM VOLTAGE
REGULATOR
BLACK WIRE
FROM
CONTROL BOX
BATTERY
TERMAINAL
BATERY BOX
Figure 5 - Battery Connections
INSTALLATION
Getting Started
IMPORTANT: Proper initial installation of equipment
will assure more satisfactory performance, longer service life, and lower maintenance cost.
IMPORTANT: The use of a backflow preventer on the
water supply hose is recommended and may be
required by local code.
The pressure washer should be run on a level surface
and in a protected area where it is not readily influenced
by outside forces such as strong winds, freezing
temperatures, rain, etc. The pressure washer should be
located to assure easy access for filling of fluids,
adjustments and maintenance. Normal precautions should
be taken by the operator to prevent moisture from reaching
the pressure washer. It is recommended that a partition
DANGER: Do not operate machine in areas where
flammable vapors (gasoline, solvents, etc.) may be
present, as this machine may ignite the vapors.
CAUTION: All venting must be in accordance with
applicable federal and state laws, and local ordinances. Consult local heating contractors.
If the pressure washer is to be used in an enclosed area,
a flue must be installed to vent burner and engine exhaust
to the outside atmosphere. Be sure the flue is the same
size as the burner exhaust vent on the pressure washer.
See Figure 1 for location. Poor draft will cause the
pressure washer to soot and not operate properly. When
selecting the location for installation, beware of poorly
ventilated locations or areas where exhaust fans may
cause an insufficient supply of oxygen. Proper 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 the machine in a poorly ventilated
area, outside fresh air may have to be piped to the burner
and a fan installed to bring sufficient air into the machine.
Locate the pressure washer so that the flue will be as
straight as possible and protrude through the roof at a
proper height and location to provide adequate draft. This
oil fired pressure washer must have a draft regulator
installed in the flue (available from most heating
contractors). A draft regulator will permit proper upward
flow of exhaust flue gases.
In addition, the pressure washer should never be operated
in an enclosed area where high ambient temperatures
exist. High ambient temperatures (above 100
cause engine oil failure and will greatly reduce the engine’s
performance.
o
F) can
Gasoline Engine
This gasoline engine is preset for operation at altitudes
below 3000 feet above sea level. If operated at higher
altitudes, it may be necessary to install a high altitude
main jet in the carburetor. Contact an authorized engine
sales and service center for details.
Page 5Shark 925A/925SS
Oil Burner
Burner Air Adjustment: The oil burner on this
machine is preset for operation at altitudes below 3000
feet. If operated at higher altitudes, it may be necessary
to adjust the air band setting. Adjust the air band for a #1
or #2 smoke spot on the Bacharach scale.
To adjust, start machine and turn burner ON (refer to
Operation for details). Loosen locking screw (refer to
Figure 6) and close air band until black smoke appears
from burner exhaust vent. Note air band position. Next,
slowly open the air band until white smoke just starts to
appear. Turn air band halfway back to the black smoke
position previously noted. Tighten locking screw.
OIL BURNER
AIR BAND
LOCKING SCREW
Figure 6 - Burner Adjustment
CAUTION: If white smoke appears from burner
exhaust vent during start-up or operation, discontinue
use and readjust air bands.
3. Fill oil burner fuel tank. Use kerosene, #1 grade home
heating oil, #1 or #2 diesel fuel. DO NOT USE GASO-
LINE, CRANKCASE OIL DRAININGS, OR WASTE
OIL.
WARNING: Do not fill engine fuel tank while engine
is running or hot. Let engine cool before refueling or
spontaneous fire may result. Fuel spillage or vapors
could ignite if engine is hot.
4. Fill the engine fuel tank. Do not overfill, fill to the bot-
tom of filler neck only. Use lead free gasoline minimum 86 octane, or lead free gasoline containing no
more than 15% MTBE. DO NOT use gasoline con-
taining more than 5% methanol or more than 10%
ethanol. Refer to the provided gasoline engine
manual for additional details.
5. Check pump and engine oil levels.
6. If detergents are to be used, only use detergents
intended for pressure washers. Follow instructions on
the detergent container.
IMPORTANT: Before installing pressure nozzle on
initial start-up, turn on the water supply and allow
water to run from the end of the wand until clear to
prevent the nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the pressure nozzle from the end of the wand and turn on
water supply. Allow water to run from the end of the
wand until clear.
7. Install the proper pressure nozzle for your cleaning
needs on end of wand, refer to Figure 7.
PRESSURE NOZZLE
NOTE: If a flue is installed, have a professional serviceman adjust your burner for a #1 or #2 smoke spot
DUAL LANCE WAND
on the Bacharach scale.
OPERATION
TRIGGER GUN
Before Starting
1. Read all manuals provided with this pressure washer.
Become familiar with location and function of all
operating and safety controls.
Figure 7 - Nozzle Installation/Trigger Lock
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, and replace as required.
2. Connect water supply hose to the garden hose connector located on pump. The water faucet and supply
hose must be capable of providing a minimum of 3.0
gallons per minute (GPM).
IMPORTANT: The trigger gun provided with this pressure washer is equipped with a manual trigger lock
to prevent accidental operation of the trigger gun,
refer to Figure 7. The trigger lock should be used
whenever the trigger gun is not in use.
Page 6 Shark 925A/925SS
TRIGGER LOCK
To Start
DANGER: Do not point wand or trigger gun at yourself or at any person. Bodily injury may result from
water under high pressure.
WARNING: Wear eye, ear, hand, foot and skin protection at all times while operating pressure washer.
IMPORTANT: The water must be turned on before
starting. Running the pump dry will cause damage
and void warranty.
IMPORTANT: Do not allow the machine to run with
trigger of the trigger gun released for more than
10 minutes at any one time or damage to pump may
occur.
1. Turn ON water supply.
2. Hold wand firmly, release trigger of trigger gun.
3. Turn engine ON/OFF switch to ON position.
4. Turn fuel shut-off valve to ON position (if so equipped).
Move choke lever to FULL CHOKE position, (choke
may not be needed on warm engine). Move throttle
lever to HALF THROTTLE position.
5. Pull the rope starter slowly until resistance is felt, then
pull briskly. Do not allow the rope starter to snap back
against the engine. Return it gently to prevent damage to the starter.
6. When the engine starts, move choke lever until
engine runs smoothly. Move throttle lever to FULL
THROTTLE position. When engine warms, move
choke lever to NO CHOKE position.
IMPORTANT: To allow for proper battery cha rging the
throttle control must be kept in the full throttle position during operation.
NOTE: If engine fails to start, refer to Troubleshooting Guide in this manual.
7. Squeeze trigger of trigger gun and allow air to purge
from system.
8. If HOT water is desired, adjust the thermostat to the
proper temperature and turn burner switch ON. The
burner will light immediately with a small puff of smoke.
You may need to initially adjust your burner for peak
performance. See Oil Burner section under Installation. If smoke continues, contact Customer Service
at 1-800-771-1881. When the trigger of the trigger
gun is released or when the thermostat temperature
setting is reached, the burner will automatically turn
off.
To Clean
DANGER: Do not place hands or fingers in front of
high pressure spray. Bodily injury may result.
1. Insert detergent inlet line into container of mixed
detergent. Squeeze the trigger of the trigger gun.
Open detergent control handle on the dual lance wand,
refer to Figure 8. The output pressure is automatically reduced for detergent application. Allow
detergent to reach end of wand before proceeding to
step 2.
DUAL LANCE WAND
OPEN CLOSE
DETERGENT CONTROL HANDLE
Figure 8 - Dual Lance Wand Operation
2. Wash from the bottom to the top, using side to side
motions. This washes away heavy dirt and allows the
detergent to soak as you work toward the top.
3. Do not wash at a 90
This will allow water to splash back at you and
reduces your cleaning power. Wash at a 30
angle to the work. This will allow the water to splash
away from you and the water will wash the dirt away
faster and easier.
4. Use the full width of the spray pattern to wash in
a wide path. Overlap spray paths for complete
coverage. Wash from side to side, using slow, steady
motions.
5. The nozzle should be 12" to 24" from work, closer for
tough areas. Be careful on painted or delicate surfaces, the pressure may damage surface if nozzle is
too close.
6. Small parts should be washed in a basket so the pressure does not push them away. Larger, lightweight
parts should be clamped down so the pressure does
not push them away.
7. Close the detergent control handle on the dual lance
wand to permit high pressure rinse, refer to Figure 8.
Rinse from top to bottom to prevent detergent from
dripping onto rinsed area.
o
angle to work (straight at it).
o
to 60
To Stop
1. If detergents were used, draw clear water through the
detergent inlet line to purge detergent. Failure to do
so may clog detergent injector valve.
2. If burner was used, turn OFF burner switch and
allow pump to run cold water through coil for several
minutes.
3. Move throttle lever to idle position.
4 Turn engine ON/OFF switch to the OFF position.
5. Close fuel shut-off valve.
6. Turn water supply OFF.
7. Squeeze trigger of trigger gun to relieve system
pressure.
o
Page 7Shark 925A/925SS
STORAGE
DANGER: Do not store flammable liquids (gasoline,
diesel fuel, solvents, etc.) near pressure washer, or
in non-ventilated areas.
Protect from freezing by storing in a heated area, or by
flushing the system with antifreeze (use an automotive
engine antifreeze or windshield washer solvent to
antifreeze). To flush the system with antifreeze, the
following steps are to be followed:
1. Open detergent control handle on dual lance wand,
refer to Figure 8.
2. Connect the water supply hose to the garden hose
connector located on the pump. Turn on water supply.
3. Place the detergent inlet line into a container of antifreeze.
4. Hold wand firmly, release trigger of trigger gun.
5. Start engine. Place throttle lever in FULL THROTTLE
position.
6. Squeeze trigger of trigger gun and allow water to flow
from the end of the wand. Watch for antifreeze to be
drawn through the detergent inlet line. Allow the antifreeze to be drawn into the system for 5 to 10 seconds.
7. Release the trigger of the trigger gun and stop
engine.
8. Turn off water supply and disconnect water supply
hose from the pump.
9. Attach a short length of hose (approximately 3 feet
long) to the garden hose connector located on the
pump. Install a funnel in the other end of the hose as
shown in Figure 9.
FUNNEL
10. Hold wand firmly, release the trigger of the trigger
gun.
11. Start engine. Place throttle lever in the idle position.
12. Squeeze trigger on trigger gun.
13. Slowly pour antifreeze into the funnel. Continue to add
antifreeze until antifreeze flows from the end of the
wand.
14. Squeeze and release the trigger of the trigger gun
several times to antifreeze the unloader system.
15. Release the trigger of the trigger gun. Stop engine.
16. Squeeze the trigger of the trigger gun to relieve system pressure.
For added protection, after antifreezing, disconnect the
pressure hose from the machine and remove the coil drain
plug (refer to Figure 1 for location.) After coil has drained,
replace pressure hose and coil drain plug. If the pressure
washer is not to be used for an extended length of time, it
is recommended that the system be flushed with
antifreeze for rust protection. Refer to the Gasoline
Engine Manual for engine storage information.
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
Pump
Lubrication: To lubricate pump, use 10W30 non-
detergent oil for pump crankcase. Crankcase must be filled
to red dot on oil gauge found on the rear of the pump,
refer to Figure 10. During the break-in-period, make sure
the oil is changed after the first 50 hours of operation.
After that, replace oil every 3 months or 500 hours of
operation, whichever comes first.
OIL GAUGE
GARDEN HOSE
CONNECTOR
OIL DRAIN
OIL FILL / DIPSTICK
Figure 9 - Winterizing
Figure 10 - Pump Lubrication
Page 8 Shark 925A/925SS
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