Hotsy HHD 5/30 G User manual

9.808-131.0 - D (03/21)
OPERATOR’S MANUAL
High Pressure Cleaner
Combustion engine - Cold Water
For the Hotsy Dealer nearest you,
consult our web page at
www.hotsy.com
MODELS:
HHD 5/30 G
1.107-377.0
HHD 6/30 G
1.107-378.0
HHD 8/35 G
1.107-379.0
HHD 3.4/30 D
1.107-382.0
English..... 3
Español....33
Français....65

3
CONTENTS
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ___________________________
The model and serial numbers will be found on a decal attached
to the pressure washer.You should record both serial number and
date of purchase and keep in a safe place for future reference.
9.808-131.0 Manual Operator High Flow Hotsy
Important Safety Information ..............................................................4 - 6
Component Identification......................................................................... 7
Assembly Instructions.............................................................................. 8
Operating Instructions.......................................................................9 - 10
Installation.............................................................................................. 10
Maintenance .......................................................................................... 11
Detergent and General Cleaning Techniques........................................ 12
Shut Down and Clean-Up...................................................................... 13
Storage .................................................................................................. 13
Preventive Maintenance (Models: HHD 5/30 G, HHD 6/30 G,
HHD 8/35 G, HHD 3.4/30 D)..............................................................14
Troubleshooting (Models: HHD 5/30 G, HHD 6/30 G,
HHD 8/35 G, HHD 3.4/30 D).......................................................15 - 17
Oil Change Record ................................................................................ 17
Spare Part List................................................................................18 - 32

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
4
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer.Warning information
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 com-
prehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement parts.
This machine is to be used only by trained operators.
IMPORTANT SAFETY
INFORMATION
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
WARNING:To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read owner's manual thor-
oughly.Failure to follow instructions
could cause malfunction of the
machine and result in death, seri-
ous bodily injury and/or property
damage.
2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING: Keep wand, hose, and
water spray away from elec-
tric wiring or fatal electric
shock may result.
4. All installations must comply
with local codes. Contact your
electrician, plumber, utility
company or the selling distribu-
tor for specific details.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING: This machine ex-
ceeds 85 db appropriate ear
protection must be worn.
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fly at high speeds. To avoid
personal injury, eye, hand and
foot safety devices must be
worn.
5. Eye, hand, and foot protec-
tion must be worn when using this
equipment.
6. Keep operating area clear of all persons.
RISK OF EXPLOSION:
OPERATE ONLY WHERE
OPEN FLAME OR TORCH
IS PERMITTED
WARNING
WARNING: Flammable liquids
can create fumes which can
ignite, causing property
damage or severe injury.
WARNING: Risk of explosion —
Operate only where open flame
or torch is permitted.
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
WARNING: Risk of fire — Do not
add fuel when the product is
operating or still hot.
WARNING: Do not use gasoline
crankcase draining or oil con-
taining gasoline, solvents or
alcohol. Doing so will result in fire
and/or explosion.
WARNING: Risk of fire — Do not Spray flammable
liquids.

Manual Operator High Flow Hotsy 9.808-131.0
5
PRESSURE WASHER OPERATOR’S MANUAL
12. Never make adjustments on machine while in op-
eration.
13. Be certain all quick coupler fittings are secured
before using pressure washer.
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
WARNING: High pressure devel-
oped by these machines will
cause personal injury or
equipment damage. Keep
clear of nozzle. Use caution
when operating. Do not di-
rect discharge stream at
people, or severe injury or
death will result.
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine from
freezing.
14. To keep machine in best
operating conditions, it is
important you protect machine
from freezing.Failure to protect
machine from freezing
could cause malfunction of the
machine and result in death,
serious bodily injury, and/or property damage. Fol-
low storage instructions specified in this manual.
15. Inlet water must be clean fresh water and no hotter
than 90°F.
WARNING
RISK OF
ASPHYXIATION. USE
THIS PRODUCT ONLY IN
A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation.
Use this product only in a
well ventilated area.
16. Running this product indoors
can result in death due to
carbon monoxide, a poison
gas you cannot see or smell.
Never operate indoors, even if
windows and doors are open.
Only use outdoor and far away
from windows, doors, and openings or vents.
17. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.
18. The best insurance against an accident is precau-
tion and knowledge of the machine.
WARNING
RISK OF INJURY FROM
FALLS WHEN USING
LADDER.
WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos-
sibility of a fall due to slippery
surfaces.
IMPORTANT SAFETY INFORMATION
WARNING:This product contains chemicals known
to the state of California to cause cancer and birth
defects or other reproductive harm. Operation of
this equipment may create sparks that can start
fires around dry vegetation. A spark arrestor may
be required. The operator should contact: Local
fire agencies for laws or regulations relating to fire
prevention requirements.
7. Allow engine to cool for 1-2 minutes before refuel-
ing. If any fuel is spilled, make sure the area is dry
before testing the spark plug or starting the engine.
(Fire and/or explosion may occur if this is not done.)
Gasoline engines on mobile or portable equipment
shall be refueled:
a. outdoors;
b. with the engine on the equipment stopped;
c. with no source of ignition within 10 feet of
the dispensing point; and
d. with an allowance made for expansion of the
fuel should the equipment be exposed to a
higher ambient temperature.
In an overfilling situation, additional precautions are
necessary to ensure that the situation is handled
in a safe manner.
8. When in use , do not place machine near flammable
objects as the engine is hot.
9. Do not store or use gasoline near this machine.
WARNING
RISK OF INJURY.
HOT SURFACES
CAN CAUSE BURNS
WARNING: Risk of injury. Hot
surfaces can cause burns.
Use only designated grip-
ping areas of spray gun and
wand. Do not place hands or
feet on non-insulated areas
of the pressure washer.
10. Transport/Repair with fuel tank
EMPTY or with fuel shut-off
valve OFF.
11. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS
WARNING
WARNING: Grip cleaning wand
securely with both hands
before starting. Failure to
do this could result in injury
from a whipping wand.

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
6
19. Do not allow acids, caustic or abrasive fluids to pass
through the pump.
WARNING: If connection is
made to portable water sup-
ply, a back flow device must
be provided.
20. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
21. Machines with shut-off spray gun should not be
operated with the spray gun in the off position for
extensive periods of time as this may cause dam-
age to the pump.
22. Protect discharge hose from vehicle traffic and
sharp objects. Inspect condition of high pressure
hose before using or bodily injury may result.
23. Before disconnecting discharge hose from water
outlet, open the spray gun to relieve pressure.
24. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
25. Do not operate this machine when fatigued or under
the influence of alcohol, prescription medications,
or drugs.
26. WARNING : Wear eye, hand and skin protection
when handling or connecting battery.
Batteries generate explosive gases during normal
battery operation.
DO NOT expose the battery to flame or sparks as
these gases may ignite.
Battery fluid is highly acidic. If battery fluid con
tacts 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.
Follow the maintenance instructions
specified in the manual.
IMPORTANT SAFETY INFORMATION
IF CONNECTED
TO A POTABLE
WATER SUPPLY,
PROTECT AGAINST
BACKFLOW.

Manual Operator High Flow Hotsy 9.808-131.0
7
PRESSURE WASHER OPERATOR’S MANUAL
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.
Unloader valve — Safety device which allows pressure
tu be released when spray gun is closed
Detergent Injector — Allows you to siphon and mix
detergents. (Not included with machine)
Wand — 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 1-2 minutes, water will leak from valve. Warm
water will discharge from pump protector onto foor.
This system prevents internal pump damage.
COMPONENT IDENTIFICATION
ON/OFF
Trigger
Spray Gun
High Pressure
Hose
Straight
Through Wand
Pressure
Nozzle
Unloader
Detergent
Bucket
(not included)
Hose
Detergent
ENGINE
PUMP
Detergent
Injector
Pump

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
8
STEP 1: Attach the high pressure
hose to the spray gun using teflon
tape on hose threads.
STEP 4: Release the coupler collar
and push the nozzle until the collar
clicks. Pull the nozzle to make sure
it is seated properly.
STEP 5: Connect the high pressure
hose to the discharge nipple. Push
coupler collar forward until secure.
STEP 2: Attach wand to spray gun
using teflon tape on wand threads. STEP 3: Pull spring-loaded collar
of the wand coupler back to insert
your choice of pressure nozzle.
STEP 6: Connect garden hose to
the cold water source.
STEPS 8 and 9 for Electric Start Machines
ASSEMBLY INSTRUCTIONS
STEP 7: Connect the water supply
hose to pump water inlet. CAU-
TION: Do not run the pump with-
out water or pump damage will
result.
STEP 8: Place battery in battery box. Use a 12 V battery
with a minimum capacity of 24AH.
STEP 9: To reduce the possibility of sparking, attach the
wires to the battery in the following order. Refere to
image aside.First attach the red wire to the positive “+"
terminal of battery and the black wire 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.
Safety
Latch
Spray
Gun
High
Pressure Hose
Wand
Spray
Gun/Wand
Wand
Coupler
Pressure
Nozzle
Pressure
Nozzle
Wand
Coupler
Coupler
Collar
Discharge
Nipple
High
Pressure
Hose
Cold
Water
Source
Garden
Hose
Pump
Water Inlet
Garden
Hose
Coupler Collar
Box Strap
Battery
Box Lid
Red Wire From the
motor starter
12 Volt
Battery
Battery
Terminal
Battery Box
Black Wire From
ground

Manual Operator High Flow Hotsy 9.808-131.0
9
PRESSURE WASHER OPERATOR’S MANUAL
STEP 3: Remove shipping cap and
install oil dipstick. Check pump oil
level by using dipstick or observe oil
level in oil window (if equipped).Use
10W-40 non detergent oil.
Dipstick
Oil Window
STEP 1: Check engine oil level. Oil level should be level with the bottom
of the oil filler neck. Be sure the machine is level when checking the oil
level. (Refer to the engine's operating manual included with machine.) We
recommend that the oil be changed after the first 20 hours of use, then
once every 100 hours. Note: Improper oil levels will cause low oil sensor
to shut off engine. IMPORTANT! Do not run engine with high or low
oil levels as this will cause engine damage.
STEP 4: Connect garden hose to
the cold water source and turn water
on completely. Never use hot water.
STEP 5: Trigger the spray gun to
eliminate trapped air then wait for a
steady flow of water to emerge from
the spray nozzle.
OPERATING INSTRUCTIONS
STEP 2: Fill the fuel tank with the
appropriate fuel (unleaded gasoline
or diesel as noted on the tank). Do
not use leaded gasoline.
STEP 6: Pull the choke lever out to the "Choke" position
(on a warm engine, leave the choke lever in, in the run
position). Push the choke lever to the "Closed" position.
To restart a warm engine, leave the choke lever in the
"Open" position.
Cold
Water
Source
Garden
Hose
Fuel
Tank
Choke
Lever
STEP 7: Turn the engine switch to "ON" position.
On-Off
Switch
Oil
Dipstick

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
10
WARNING! Never replace
nozzles without engaging the
safety latch on the spray gun
trigger.
WARNING! Starter cord kickback (rapid retraction) can result in
bodily injury. Kickback will pull hand and arm toward engine faster
than you can let go. ALWAYS relieve spray gun pressure before
pulling starter cord. Pull starter cord slowly until resistance is felt,
then pull rapidly.
The four color-coded quick connect nozzles provide a wide array of spray
widths from 15° to 40° and are easily accessible when placed in the con-
venient rubber nozzle holder, which is provided on the front of the machine.
NOTE: For a more gentle rinse, select the white 40° or green 25° nozzle.
To scour the surface, select the yellow 15° nozzle. To apply detergent,
select the black nozzle.
NOZZLES
Safety
Latch
OPERATING INSTRUCTIONS
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 backflow preventer on the
water supply hose is recommended and may be
required by local code.
IMPORTANT: DO NOT run machine indoors or in an
enclosed area where high ambient temperatures
exist. High ambient temperatures (above 100° F)
can cause engine oil failure and will greatly reduce
the engine’s performance.
VENTING
CAUTION: All venting must be in accordance with
applicable federal and state laws, and local ordi-
nances. Consult local heating contractors.

Manual Operator High Flow Hotsy 9.808-131.0
11
PRESSURE WASHER OPERATOR’S MANUAL
INSTALLATION
MAINTENANCE
If the pressure washer is to be used in an enclosed area,
a flue must be installed to vent engine exhaust to the
outside atmosphere. Poor draft will cause the pressure
washer 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 will have to
be supplied to 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 regu-
lator installed in the flue (available from most heating
contractors).A draft regulator will permit proper upward
flow of exhaust flue gases.
WATER SUPPLY
Your water supply must provide water to the equipment
that exceeds the Gallon Per Minute (GPM) rate of your
machine.You can check your GPM by using a 5 gallon
bucket and a timer. If your machine is 5 GPM or less
and the bucket fills in less than a minute you have ad-
equate supply.Some water supply systems are affected
by things like washing machines, livestock watering
systems and flushing of toilets. Be sure the supply is
still adequate when these operations are taking place.
The water temperature cannon exceed 145 Degrees
Fahrenheit on the standard models and 180 degrees
Fahrenheit on the high temperature models and the
pressure should not exceed 60 PSI. Failure to secure
adequate water supply to your commercial pressure
washer will result in pump damage.
¡DO NOT RUN PUMP DRY!
PUMP
DO NOT:
1. Pump acids.
2. Fail to winterize in freezing temperatures.
3. Allow pump to run dry.
4. Allow machine to run with trigger gun closed for
more than 3 minutes at any one time or damage
to pump may occur.
BEFORE STARTING
Connect the water supply hose to the water inlet (stan-
dard garden hose connector). The water faucet and
supply hose must be capable of providing (GPM) rate
of your machine.
DO:
1. Use a water softener on the water system if
known to be high in mineral content.
2. Use only high quality detergents and follow
manufacturer's mix recommendations.
3. Immediately after using detergent solutions the
system should be flushed thoroughly with clear
water.
4. Clean strainer screen on detergent line
periodically.
Recommendation to lift the machine.
Do not lift the machine. Refer to image. Can cause
damage to the gas tank.

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
12
WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau-
sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.
STEP 1: Connect the optional detergent injector to
discharge nipple on machine. Connect high pressure
hose to injector with quick coupler. (Check to make
sure locking coupler sleeves are in proper position
before applying water pressure).
STEP 2: Use detergent designed
specifically for pressure washers.
Household detergents could damage
the pump. Prepare detergent solution
as required by manufacturer. Fill a
container with pressure washer de-
tergent. Place filter end of detergent
suction tube into detergent container.
STEP 3: With safety latch on spray gun engaged, se-
cure black detergent nozzle into quick
coupler. NOTE: Detergent cannot
be applied using yellow, green or
white nozzles.
STEP 4: With the engine running,
pull trigger to operate machine.Liquid
detergent is drawn into the machine
and mixed with water. Apply detergent to work area.
Do not allow detergent to dry on surface.
IMPORTANT: You must flush the detergent injec-
tion system after each use by placing the suction
tube into a bucket of clean water, then run the
pressure washer in low pressure for 1-2 minutes.
THERMAL PUMP PROTECTION
If you run the engine on your pressure washer for 1-2
minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach high tempera-
tures. When the water reaches this temperature, the
pump protector engages and cools the pump by dis-
charging the warm water onto the ground.This thermal
device prevents internal damage to the pump.
CLEANING TIPS
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not al-
low detergent to dry on surface. If surface appears to
be drying, simply wet down surface with fresh water. If
needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweep-
ing motion keeping the spray nozzle approximately
1 foot from cleaning surface. Use overlapping strokes
as you clean and rinse any surface. For best surface
cleaning action spray at a slight angle.
Recommendations:
• Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
• If painted surfaces are peeling or chipping, use
extreme caution as pressure washer may remove
the loose paint from the surface.
• Keep the spray nozzle a safe distance from the
surface you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no damage is found, continue to pressure washing.
CAUTION - Never use:
• Bleach, chlorine products and other corrosive
chemicals
• Liquids containing solvents (i.e., paint thinner,
gasoline, oils)
• Tri-sodium phosphate products
• Ammonia products
• Acid-based products
These chemicals will harm the machine and will dam-
age the surface being cleaned.
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun. Remove black soap
nozzle from the quick coupler. Select and install the
desired high pressure nozzle.NOTE: You can also stop
detergent from flowing by simply removing detergent
siphon tube from bottle.
WARNING
DETERGENT AND GENERAL CLEANING TECHNIQUES
Soap Nozzle
Discharge
Nipple
Strainer
Quick
Coupler
High
Pressure
Hose
Detergent
Injector
(Not included)

Manual Operator High Flow Hotsy 9.808-131.0
13
PRESSURE WASHER OPERATOR’S MANUAL
13
PRESSURE WASHER OPERATOR’S MANUAL
SHUTTING DOWN AND CLEAN-UP
STEP 1: Remove detergent suc-
tion tube from container and insert
into one gallon of fresh water. Slide
nozzle forward for low pressure or
to connect black detergent nozzle.
Pull trigger on spray gun and siphon
water for one minute.
STEP 2: Turn off the engine. STEP 3:Turn off water
supply.
STEP 5: Disconnect the garden
hose from the water inlet on the
machine.
STEP 6: Disconnect the high
pressure hose from discharge
nipple.
STEP 7: Engage
the spray gun safe-
ty lock.
STEP 4: Press trig-
ger to release water
pressure.
CAUTION: Always store your pressure washer in a
location where the temperature will not fall below
32°F (0°C).The pump in this machine is susceptible
to permanent damage if frozen. FREEZE DAMAGE
IS NOT COVERED BY WARRANTY.
1. Stop the pressure washer, squeeze spray gun trig-
ger to release pressure.
2. Detach water supply hose and high pressure hose.
3. Turn on the machine for a few seconds, until re-
maining water exits. Turn engine off immediately.
4. Drain the gas and oil from the engine.
5. Do not allow high pressure hose to become kinked.
6. Store the machine and accessories in a room which
does not reach freezing temperatures.
CAUTION: Failure to follow the above directions will
result in damage to your pressure washer.
When the pressure washer is not being operated or is
being stored for more than one month, follow these
instructions:
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 exhaust valves to prevent rusting of cylinder.
4. Cover 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 formula-
tion of fuel deposits during shortage. Such additives
may be added to the gasoline in the fuel tank of the
engine, or to 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 conditions
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 mainte-
nance of the engine.
STORAGE
Pump
Water Inlet Discharge Nipple
Safety
Latch
On-Off
Switch

Manual Operator High Flow Hotsy 9.808-131.0
PRESSURE WASHER Troubleshooting Guide
14
MAINTENANCE SCHEDULE
Engine Oil
SAE 10W-30
Inspect Daily
Change First month or 20 hours.
Every 100 hours or every 6 months after first month
Filter Every 50 hours
Air Cleaner/Filter
Inspect or check Daily or each use
Clean Every 6 months or 100 hours
Replace Every 2 years or 500 hours (Replace the paper filter
element only)
Engine Fuel Filter Replace Every year or 300 hours
Spark Plug Maintenance 300 hours or annually
Clean Fuel Tank(s) Annually
Replace Fuel Lines Annually
Pump Oil
(Non foaming)
SAE 10W-40
Inspect Oil level Daily or Each use
Change After first 50 hours, then every 500 hours or annually
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects/O-Rings Annually/As needed
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)
PREVENTATIVE MAINTENANCE
For Models: HHD 5/30 G, HHD 6/30 G, HHD 8/35 G, HHD 3.4/30 D
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 preventa-
tive maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer
for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer.
Perform maintenance more often under severe conditions. Check pump oil and engine oil level before first use
of your new pressure washer.
*When servicing belts, don't exceed 14 lb-ft on pump mounting screws. Failure to do so will cause pump
thread damage.
NOTE: Read engine manual for any maintenance or service questions.

9.808-131.0 Manual Operator High Flow Hotsy
15
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
For Models: HHD 5/30 G, HHD 6/30 G, HHD 8/35 G, HHD 3.4/30 D
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE Faulty pressure gauge Install new gauge.
Insufficient water supply. Closed
faucet. Inlet hose kinked
Use larger supply hose; clean filter at water
inlet. Open faucet.
Clogged inlet hose strainer Check plumbing system for leaks. Retape
leaks with teflon tape.
Old, worn or incorrect spray nozzle Match nozzle number to machine and/or
replace with new nozzle.
Belt slippage Tighten or replace; use correct belt.
Plumbing or hose leak Check plumbing system for leaks. Re-tape
leaks with teflon tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed.
Worn packing in pump Install new packing kit. Call Dealer Customer
Support.
Fouled or dirty inlet or discharge
valves in pump Clean inlet and discharge valves.
Machine has been stored in
freezing temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Worn inlet or discharge valves Replace with valve kit.
Obstruction in spray nozzle Remove obstruction.
Leaking pressure control valve Rebuild or replace as needed.
Slow engine RPM Set engine speed at proper specifications.
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.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Call local distributor.
Nozzle is obstructed Blow out or remove debris with fine needle.
Pump sucking air, inlet hose
leaking
Check that all hoses and fittings are airtight.
Turn off machine and trigger spray gun until
a steady flow of water emerges through the
nozzle.
Insufficient water supply Turn water on full force. Check garden hose
for kinks, leaks or blockage.
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.
Out of gas Fill fuel tank.
Water in gasoline Drain gas tank; fill with clean fuel.

Manual Operator High Flow Hotsy 9.808-131.0
PRESSURE WASHER Troubleshooting Guide
16
TROUBLESHOOTING
For Models: HHD 5/30 G, HHD 6/30 G, HHD 8/35 G, HHD 3.4/30 D
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high engine
RPM
Adjust engine throttle to lower RPM.
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 local distributor.
ENGINE OPERATES
FOR 15 MINUTES
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.
ENGINE LACKS
POWER
Dirty air filter Replace air filter.
ENGINE FALTERS Choke is opened too soon Move choke to halfway position until engine
runs smoothly.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING
FROM UNDER PUMP
Oil seal worn or damaged Call local distributor.
WATER LEAKING
FROM PUMP
PROTECTOR
Spray gun closed with machine
running 5 minutes or longer
Open spray gun or turn off machine.
NO DETERGENT Detergent suction tube not properly
connected to machine
Check connection.
Detergent is too thick Dilute detergent. For best results, use
manufacturers detergent.
Detergent filter valve is at lowest
setting
Set detergent filter valve to a higher setting.
Filter on detergent suction tube is
clogged
Run warm water through filter to remove
debris.
Damaged or clogged detergent suc-
tion tube
Remove obstruction or replace detergent
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with fine needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose fittings Tighten fittings.
Missing/worn rubber washer Insert new washer.

9.808-131.0 Manual Operator High Flow Hotsy
17
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
For Models: HHD 5/30 G, HHD 6/30 G, HHD 8/35 G, HHD 3.4/30 D
PROBLEM POSSIBLE CAUSE SOLUTION
SPRAY WAND
LEAKS
Spray wand not properly attached Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY Pump is sucking air Check that hoses and fittings are air tight.
Turn off machine and purge pump by
squeezing trigger gun until a steady flow of
water emerges through nozzle.
Date Pump Oil
Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Date Engine 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.
Pump oil: Check level daily before first use of your new Power Washer. Change pump oil after first 50 hours
every year or 500 hours thereafter. Use SAE 10W-40 non foaming.
Engine oil: Check daily before first use of your new Power Washer. Change engine oil after first 20 hours
and every 100 hours thereafter. Use SAE 10W-30.
NOTE: Read engine manual for any maintenance or service questions.

9.808-131.0 Manual Operator High Flow Hotsy
OPERATOR’S MANUAL PRESSURE WASHER
18
ITEM PART NO. DESCRIPTION QTY
1 8.925-132.0 Hose, 3/8" X 50' 2W 6000PSI SW/SO/CPL
(HHD 5/30 G, HHD 6/30 G) 1
8.925-134.0 Hose, 1/2" X 50' 2W 5000PSI SW/SO/CPL (HHD 8/35 G) 1
8.925-130.0 Hose, 3/8" X 50' 1W 4000PSI SW/SO/CPL (HHD 3.4/30 D) 1
2 8.750-247.0 Gun, M407 (HHD 5/30 G, HHD 6/30 G) 1
8.710-384.0 Gun, ST-1500, 5000 PSI, 10.4 GPM (HHD 8/35 G, HHD 3.4/30 D) 1
3 8.783-040.0 Wand 44" Zinc Plated, Handle & Coupler (all models) 1
4 Quick Connect Nozzle Kit (6.0) (HHD 5/30 G)
8.712-362.0 ▲Nozzle, SAQCMEG 1506, Yellow 1
8.712-363.0 ▲Nozzle, SAQCMEG 2506, Green 1
8.712-364.0 ▲Nozzle, SAQCMEG 4006, White 1
8.712-398.0 ▲Nozzle kpl., QCEM-6540 Mess. (CHEM) 1
Quick Connect Nozzle Kit (7.0) (HHD 6/30 G)
8.712-370.0 ▲Nozzle, SAQCMEG 1507, Yellow 1
8.712-371.0 ▲Nozzle, SAQCMEG 2507, Green 1
8.712-372.0 ▲Nozzle, SAQCMEG 4007, White 1
8.712-398.0 ▲Nozzle kpl., QCEM-6540 Mess. (CHEM) 1
Quick Connect Nozzle Kit (9.0) (HHD 8/35 G)
8.708-463.0 ▲1/4' QC WASHJET #9 x 15 1
8.708-464.0 ▲1/4' QC WASHJET #9 x 25 1
8.708-465.0 ▲1/4' QC WASHJET #9 x 40 1
8.712-398.0 ▲Nozzle COMPL, QCEM-6540 Brass (Chem) 1
Quick Connect Nozzle Kit (4.0) (HHD 3.4/30 D)
8.712-346.0 ▲Nozzle, SAQCMEG 1504, YELLOW 1
8.712-347.0 ▲Nozzle, SAQCMEG 2504, GREEN 1
8.712-348.0 ▲Nozzle, SAQCMEG 4004, WHITE 1
8.712-398.0 ▲Nozzle, COMPL, QCEM-6540 BRASS (Chem) 1
ACCESSORIES ASSEMBLY
ACCESSORIES ASSEMBLY PARTS LIST
1
2
9
5
7
3
4
6
8

Manual Operator High Flow Hotsy 9.808-131.0
19
PRESSURE WASHER OPERATOR’S MANUAL
ACCESSORIES ASSEMBLY PARTS LIST
ITEM PART NO. DESCRIPTION QTY
5 9.802-170.0 Coupler, 3/8"plug, female, steel/zinc (all models) 1
6 9.802-216.0 Injector, Chem, 0.083 (HHD 5/30 G, HHD 3.4/30 D) 1
8.757-724.0 Injector Chem Non Adj 2.3 5-9GPM (HHD 6/30 G, HHD 8/35 G) 1
7 6.388-216.0 Hose DN 5 (HHD 5/30 G, HHD 3.4/30 D) 1M
8 5.731-652.0 Filter with weight (HHD 5/30 G, HHD 3.4/30 D) 1
9 9.802-169.0 Coupler, 3/8" Socket, Male, Brass (all models) 1
  ▲Not Shown

Manual Operator High Flow Hotsy 9.808-131.0
OPERATOR’S MANUAL PRESSURE WASHER
20
15
5
3
8
4
6
14
9
13
7
10
11
12
13
2
1
FRAME ASSEMBLY HF SKID
FRAME ASSEMBLY HF SKID PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 8.928-612.0 Cage High Flow 1
2 8.928-607.0 Base High Flow 1
3 8.928-692.0 Wand Holder HF 1
4 8.757-432.0 Bolt, 1/4-20 X 3/4,Carriage ST CL5 ZNPLT 8
5 9.197-010.0 1/4-20" Nylon Insert Lock Nut With Flange 8
6 8.757-629.0 Bolt 3/8-16 X 1.5"Carriage Zinc Plt Cl5 8
7 9.802-067.0 Bumper Pad, Engine 8
8 8.928-605.0 Support Strap Gas Tank 2
9 9.198-004.0 3/8 USS F/W Zinc 8
10 8.928-954.0 Skid Feet Welded 4
11 9.802-066.0 Pad Soft Rubber 4
12 9.802-817.0 Washer, 3/8" X 1" 8
13 9.197-003.0 3/8-16 Ne Nylon Insert L/N ZC 5UM White 12
14 9.802-722.0 Bolt, 3/8 X 1-1/4", NC HH 4
15 Handle See exploded view