Mi-T-M HHB Series User manual

Operator's Manual 1
©Copyright 2006 Form #37-0890-E/F/S-030514
CAUTION
RISK OF INJURY!
READ MANUAL BEFORE OPERATING!
This manual is an important part of the pressure washer and must
remain with the unit when you sell or rent it!
OPERATOR'S MANUAL FOR
HHB and HHS-SERIES
HOT WATER
PRESSURE WASHERS

2 Operator's Manual
TABLE OF CONTENTS
INTRODUCTION.......................................................................................................................3
IMPORTANT SAFETY INSTRUCTIONS .............................................................................. 4-7
RISK OF ELECTRIC SHOCK OR ELECTROCUTION.................................................4
RISK OF EXPLOSION OR FIRE..................................................................................5
RISK OF ASPHYXIATION ...........................................................................................5
RISK OF INJECTION OR SEVERE CUTTING INJURY...............................................6
RISK OF BURNS..........................................................................................................6
RISK OF BURSTING....................................................................................................6
RISK FROM MOVING PARTS......................................................................................6
RISK OF BODILY INJURY............................................................................................7
FEATURES ...........................................................................................................................8-9
INSTALLATION & PREPARATION ..................................................................................10-13
ATTIRE .......................................................................................................................10
SETUP........................................................................................................................10
OPTIONAL STACK ADAPTER-VENTILATION INSTRUCTIONS...............................10
POWER CORD CONNECTION..................................................................................11
BURNER FUEL TANK ................................................................................................11
ADJUSTABLE PRESSURE DUAL LANCE.................................................................12
DUAL LANCE CONNECTION ....................................................................................12
WATER SUPPLY.........................................................................................................12
UNLOADER................................................................................................................12
THERMAL RELIEF VALVE .........................................................................................13
PRE-START INSPECTION PROCEDURES...............................................................13
OPERATING INSTRUCTIONS .........................................................................................14-17
FLUSHING THE SYSTEM..........................................................................................14
START-UP/COLD WATER OPERATION....................................................................14
HOT WATER OPERATION.........................................................................................14
OPTIONAL STEAM OPERATION...............................................................................15
CLEANING WITH DETERGENTS..............................................................................16
SHUTDOWN...............................................................................................................17
OPTIONS....................................................................................................................17
STORAGE & MAINTENANCE.......................................................................................... 18-21
MAINTENANCE CHART.............................................................................................18
DAILY..........................................................................................................................19
3 MONTHS .................................................................................................................20
6 MONTHS .................................................................................................................21
12 MONTHS ...............................................................................................................21
SEASONAL-WINTERIZING........................................................................................21
TROUBLESHOOTING......................................................................................................22-24
STATEMENT OF WARRANTY ...............................................................................................25
WARNING
WARNING: THIS PRODUCT CAN EXPOSE YOU TO
CHEMICALS INCLUDING LEAD, WHICH IS KNOWN TO THE
STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM. FOR MORE
INFORMATION GO TO WWW.P65WARNINGS.CA.GOV/

Operator's Manual 3
INTRODUCTION
Congratulations on the purchase of your new HHS-Series hot water pressure washer! You can be assured your hot
water pressure washer was constructed and designed with quality and performance in mind. Each component has been
rigorously tested to ensure the highest level of acceptance.
This operator's manual was compiled for your benet. By reading and following the simple safety, installation, operation,
maintenance and troubleshooting steps described in this manual, you will receive years of trouble free operation from
your new hot water pressure washer. The contents of this manual are based on the latest product information available
at the time of publication. The manufacturer reserves the right to make changes in price, color, materials, equipment,
specications or models at any time without notice.
! IMPORTANT !
Theseparagraphsaresurroundedbya"SAFETYALERTBOX". Thisboxisusedtodesignateand
emphasize Safety Warnings that must be followed when operating this pressure washer.
Accompanying the Safety Warnings are "signal words" which designate the degree or level
of hazard seriousness. The "signal words" used in this manual are as follows:
DANGER: Indicates an imminently hazardous situation which, if not avoided, WILL
result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, COULD
result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided MAY
result in minor or moderate injury.
The symbols set to the left of this paragraph are "Safety Alert Symbols". These symbols
are used to call attention to items or procedures that could be dangerous to you or other
persons using this equipment.
ALWAYS PROVIDEA COPY OF THIS MANUAL TO ANYONE USING THIS EQUIPMENT. READ
ALL INSTRUCTIONS BEFORE OPERATING THIS PRESSURE WASHER AND ESPECIALLY
POINT OUT THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF PERSONAL
INJURY TO THE OPERATOR.
Once the unit has been uncrated, immediately write in the serial number of your unit in the space provided below.
SERIAL NUMBER_________________________________
Inspect for signs of obvious or concealed freight damage. If damage does exist, le a claim with the transportation
company immediately. Be sure that all damaged parts are replaced and that the mechanical and electrical problems
are corrected prior to operation of the unit. If you require service, contact your customer service.
Please have the following information available for all service calls:
1. Model Number
2. Serial Number
3. Date and Place of Purchase

4 Operator's Manual
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using this product, basic precautions should always be observed, including the following:
READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER
POTENTIAL CONSEQUENCE PREVENTION
Seriousinjuryordeathcouldoccurif
the pressure washer is not properly
grounded. Your pressure washer
is powered by electricity and may
causeelectricshockorelectrocution
if not used properly.
Electrical shock may occur from
electrical cord.
Electrical shock may occur if
pressure washer is not operated
properly.
Serious injury or death may occur if
electrical repairs are attempted by
unqualied persons.
This product must be grounded. Make sure
the pressure washer is equipped with a GFCI
built into the power supply cord. If this is not
available, the pressure washer must be plugged
into a receptacle that is protected by a GFCI.
Disconnect when not in use.
If your unit is equipped with a GFCI, DO
NOT drop the GFCI as damage could
result. If the GFCI is accidentally dropped,
be certain to test the GFCI before using
to ensure it is working properly. (Follow
instructions on GFCI for test procedures.)
Always be certain the unit is receiving proper
voltage. Before plugging the unit into a
compatible power source, be certain the
switch is in the "OFF" position. Disconnect
when not in use.
Do not modify the electrical plug. If it will not
t the outlet, have a proper outlet installed by
a qualied electrician. Do not use any type
of adapter.
Check power cord for signs of crushing, cutting
or heat damage. If replacement of plug or
cord is needed, use only identical replacement
parts.
Do not use extension cords with this pressure
washer.
Keep all connections dry and off the ground.
Do not allow electrical cords to lay in water or
in such a position where water could come
in contact with them. Do not touch plug with
wet hands.
Do not pull on the electrical cord to disconnect
from the outlet.
DO NOT direct spray on or into electrical
installationsofanykind! Thisincludeselectrical
outlets, light bulbs, fuse boxes, transformers,
the unit itself, etc.
DO NOT allow metal components of the
pressure washer to come in contact with live
electrical components.
Neveroperatethepressurewasherwithsafety
guards/covers removed or damaged.
Anyelectricalwiringorrepairsperformedonthis
pressurewashershouldbedonebyAuthorized
ServicePersonnelinaccordancewithNational
and Local electrical codes.
Before opening any electrical enclosure, always
shut off the pressure washer, relieve pressure
andunplugthepressurewasherfromthepower
source. Allow the pressure washer to cool
down. Never assume the pressure washer is
safetoworkonjustbecauseitisnotoperating.
It could restart at any time! Service in a clean,
dry, at area.
RISK OF
ELECTRIC SHOCK
OR
ELECTROCUTION
HAZARD

Operator's Manual 5
POTENTIAL CONSEQUENCE PREVENTION
IMPORTANT SAFETY INSTRUCTIONS
READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER
RISK OF
EXPLOSION OR FIRE Serious injury or death may occur
from normal sparks in the multiple
ignition sources or burner exhaust.
Seriousinjuryordeathmayoccuras
a result of improper fueling.
Serious injury or death may occur
if system safety's are not properly
maintained.
Always operate pressure washer in a well
ventilated area free of ammable vapors,
combustible dust, gases or other combustible
materials.
Do not store the pressure washer near an
open ame or any equipment such as a stove,
furnace, water heater, etc., which utilizes a pilot
light or sparking device.
Do not use this pressure washer to spray
ammable material!
Do not smoke while lling burner fuel tank.
Never ll the burner fuel tank while the pressure
washer is running or hot. Allow to cool two
minutes before refueling.
Do not refuel in a poorly ventilated area.
Always refuel slowly to avoid the possibility of
spilled fuel which may cause a risk of re.
Burner Fuel Tank:
Use No. 1 or No. 2 fuel oil/diesel or
kerosene.
Do not use gasoline, crankcase drainings or
oil containing gasoline or solvents.
Do not operate the unit if fuel is spilled. Wipe
the pressure washer clean and move it away
from the spill. Avoid creating any ignition until
the fuel has evaporated.
This pressure washer has a Safety Relief
device which should never be altered, modied,
removed or made inoperative. If the device
fails, replace immediately with only genuine
manufacturer replacement part.
HAZARD
Serious injury or death may occur
from inhaling burner exhaust or
dangerous vapors.
Never operate this pressure washer in an
enclosed area. Always make certain there
is adequate ventilation (fresh outside air) for
breathing and combustion. This will prevent
the build up of dangerous carbon monoxide
gases. Beware of poorly ventilated areas, or
areaswith exhaustfans whichcancause poor
air exchange.
Follow all safety instructions provided with the
materialsyouarespraying. Useofarespirator
may be required when working with some
materials. Do not use this pressure washer
to dispense hazardous detergents.
RISK OF
ASPHYXIATION

6 Operator's Manual
RISK OF BURNS
RISK FROM MOVING PARTS
Serious injury may occur from touching
the heat exchanger. This area can
remain hot for some time after the
pressure washer is shutdown.
Serious injury may occur from a
pressure washer malfunction or
exploding accessories if incorrect
system components, attachments or
accessories are used.
Serious injury or death may occur
if attempting to start the pressure
washer when the unit pumping system
is frozen.
Serious injury may occur to the
operator from moving parts on the
pressure washer.
Never make adjustments to the factory set
pressures.
Never exceed manufacturers maximum allowable
pressure rating of attachments.
Do not allow any hoses to make contact with heat
exchanger to prevent the possibility of bursting.
Avoid dragging the hoses over abrasive surfaces
such as cement.
Use only manufacturer recommended repair parts
for your pressure washer.
In freezing temperatures, the unit must always be
warm enough to ensure there is no ice formation
in the pump. Do not start the pressure washer if
it has been transported in an open or underheated
vehicle without rst allowing the unit pumping
system to thaw.
RISK OF BURSTING
Do not operate the unit without all protective
covers in place.
Follow the maintenance instructions specied in
the manual.
Never make adjustments to the unit while it is
connected to the power source.
Never allow any part of your body to contact the
heat exchanger.
Do not leave unit unattended after shutdown until
it is completely cooled down as described in the
"SHUTDOWN" procedures listed on page 18 of
this manual.
POTENTIAL CONSEQUENCE PREVENTION
IMPORTANT SAFETY INSTRUCTIONS
READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER
Serious injury or death could occur
from high pressure spray penetrating
the skin.
Keep clear of nozzle and spray! Never put your hand,
ngers or body directly over the spray nozzle.
Never point the high pressure discharge spray at
yourself or anyone else.
Thisproductistobeused only by trained operators.
Close supervision is necessary when used near
children.
Always keep operating area clear of all persons.
DO NOT allow children to operate this unit.
SEEK EMERGENCY MEDICAL CARE if the spray
appears to have penetrated the skin! DO NOT
TREAT AS A SIMPLE CUT!!
High pressure hoses and fuel lines should be
inspected daily for signs of wear. If evidence of
failure exists, promptly replace all suspect hoses
and fuel lines to prevent the possibility of injury
from the high pressure spray. If a hose or tting is
leaking, NEVER PLACE YOUR HAND DIRECTLY
ON THE LEAK.
NEVER operate the gun with the trigger wired in
the open position. To prevent accidental discharge,
the trigger gun should be securely locked when not
in use.
Before removing the spray nozzle or servicing the
unit, ALWAYS shut off the unit and trigger the gun
to release trapped pressure. (Even after you shut
off the unit, there is high pressure water left in the
pump, hose and gun until you release it by triggering
the gun.)
RISK OF INJECTION
OR
SEVERE CUTTING INJURY
HAZARD

Operator's Manual 7
RISK OF BODILY INJURY
IMPORTANT SAFETY INSTRUCTIONS
READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER
Serious injury or death may occur
from detergents contacting the skin.
Serious injury can occur from loose
debris being propelled at a high speed
from the spray gun.
Injury may occur if the operator loses
his balance caused by the thrust of
water traveling through the spray
nozzle.
Injury may occur from the pressure
washer.
SEEK EMERGENCY MEDICAL CARE if you are
using cleaning agents and the spray appears to
have penetrated the skin! DO NOT TREAT AS
A SIMPLE CUT! Be prepared to tell a physician
exactly what kind of detergents you were using by
reading the Material Safety Data Sheet (MSDS)
provided with your detergent.
Neveruseanysolventsorhighlycorrosivedetergents
or acid type cleaners with this pressure washer.
Protective equipment such as rubber suits, gloves
and respirators are advisable, especially when using
cleaning detergents.
Keep all detergents out of the reach of children!
ALWAYS wear protective goggles when operating
the unit to shield the eyes from ying debris and
detergents.
DO NOT direct spray toward fragile materials such
as glass because shattering could occur.
This pressure washer is equipped with an Auto
start/stop feature, the unit will shutdown until
the gun is triggered. To prevent accidental high
pressure discharge, do not leave unit unattended
while in this mode.
Stayalert-watchwhatyouaredoing. Donotoperate
the unit when fatigued or under the inuence of
alcohol or drugs.
NEVER squeeze the trigger unless securely
braced.
DO NOT overreach or stand on unstable support.
Wet surfaces can be slippery, wear protective foot
gear and keep good footing and balance at all
times.
NEVER trigger the gun while on a ladder or roof.
ALWAYS hold on rmly to the gun/lance assembly
whenstartingandoperatingtheunit. Failuretodoso
can cause the lance to fall and whip dangerously.
Know how to stop the pressure washer and bleed
pressures quickly. Be thoroughly familiar with
controls.
DONOTleavepressurizedunitunattended. Shutoff
the pressure washer and release trapped pressure
before leaving.
DO NOT operate the unit if you see any fuel, oil or
water leaks from the machine. DO NOT resume
operation until the unit has been inspected and
repaired by a qualied service person.
Place unit in a clean, dry, at area for servicing.
Before servicing the unit: turn the unit off, relieve
the water pressure from the trigger gun, and allow
the unit to cool down. Service in clean, dry, at area.
Engage the brake to prevent unit from moving.
Do not move the unit by pulling on the hose.
POTENTIAL CONSEQUENCE PREVENTION
!SAVE THESE INSTRUCTIONS!
HAZARD

8 Operator's Manual
HHS FEATURES
FEATURES HHS_HHB 021714 RJA

Operator's Manual 9
FEATURES LISTING
1. Flat Free Wheels
2. Brake
3. Access Panel
4. Wand Holder
5. Water Inlet
6. Water Float Tank
7. Push/Pull Handle w/Rubber Grip
8. Stack Adapter Kit (Optional)
9. Heat Exchanger Exhaust
10. Burner Air Adjustment
11. Fuel Filter/Water Separator
12. Protective Cage for Fuel Tank & Burner
13. Pump Motor
14. High Pressure Pump
15. Pressure Switch-Burner Control
16. Unloader
17. Water Outlet
18. Safety Relief Valve
19. Detergent Strainer
20. Decal-Data Plate
21. Power Cord (w/GFCI on 1002/1003 & 2004-1E2G)
22. Burner Fuel Tank
23. Control Panel
24. Switch-Pump
25. Switch-Burner
26. Switch-Main
27. Adjustable Thermostat
28. Water Strainer
29. Detergent Metering Valve
30. High Pressure Hose
31. Trigger Gun
32. Trigger Safety Lock
33. Insulated Lance
34. Adjustable Pressure Dual Lance
35. High Pressure Nozzle
SPECIFIC UNIT INFORMATION
FRAME: Solid steel axles, push/pull handle with rubber grip.
PORTABILITY: Four pneumatic tires for easy mobility.
FINISH: Powder coated chassis with stainless steel heat exchanger.
HIGH PRESSURE HOSE: 3/8" x 50'.
TRIGGER GUN ASSEMBLY: Trigger controlled, safety lockoff,
insulated lance.
DUAL LANCE: Insulated, with adjustable pressure.

10 Operator's Manual
SETUP:
1. Thisunitshouldonlybeplacedonalevelsurfacetoensureproperlubrication
for the water pump while operating. NEVER spray water directly on the
unit.
2. Do not use unit in an area:
a. with insufcient ventilation.
b. where there is a combustible cealing, unless suitable stack venting is
installed.
c. where there is evidence of oil or fuel leaks.
d. where ammable gas vapors may be present.
3. Be certain to engage the brake to prevent the unit from moving while
operating. Allow sufcient clearances around unit for accessibility.
4. Do not allow the unit to be exposed to rain, snow or freezing temperatures.
If any part of the unit becomes frozen, excessive pressure may build up in
the unit which could cause it to burst resulting in possible serious injury to
the operator or bystanders.
5. Pump oil level should be checked before each use. Make certain the oil is
on the "Full" mark on the dipstick or in the center of the oil sight glass. If
the level appears to be low, ll with SAE20 or 30 non-detergent pump oil.
ATTIRE:
Proper attire is essential to your safety. It is advised to utilize whatever means
necessary to protect eyes, ears, and skin. Additional safety attire (such as
respiratory mask) may be required when using detergent cleaning agents with
this washer.
OPTIONAL STACK ADAPTER – VENTILATION INSTRUCTIONS
1. Installation of this unit, in an indoor or enclosed environment, should be
performed by a qualied HVAC technician. Additionally, venting must
conform to all local, state, and federal codes. Refer to NFPA 31 and CAN/
CSA B139-M91, where applicable.
2. Exhaust gases must not be vented into a wall, a ceiling, or a concealed
space of a building.
3. 8” ue pipe must be used to match the size of the stack adapter accessory.
The ue pipe should be kept as short as possible and be installed so that it
has a continuous rise to the chimney. Elbows must be kept to an absolute
minimum to maintain the forced air draft in the system and ensure good
burn quality.
4. If the unit is being installed in an enclosed room, an adequate air supply
must be provided to burner by installing openings near the oor. These
openings should be at least one square inch per 1000 BTU input of the
machine. Also, a ventilation opening must be installed near the ceiling.
This opening should be at least the same size as the supply opening near
the oor. Refer to NFPA 31 and CAN/CSA B139-M91, where applicable.
5. If the burner is located in a tightly constructed building where there is
inadequate outside air inltration, outside combustion air must be supplied by
some other means. One method to accomplish this is through a permanent
opening, or openings, in an exterior wall. The total free area of the opening(s)
must not be less than one square inch per 5,000 BTU input. All appliances
must be taken into consideration. Refer to NFPA 31 and CAN/CSA B139-
M91, where applicable.
INSTALLATION & PREPARATION
WARNING
RISK OF ASPHYXIATION!
USE THIS PRODUCT ONLY IN
WELLVENTILATEDAREAS! THE
EXHAUST CONTAINS CARBON
MONOXIDE, A POISONOUS,
ODORLESS AND INVISIBLE
GAS. BREATHING THIS GAS
CAN CAUSE SERIOUS INJURY,
ILLNESS & POSSIBLE DEATH.
DANGER
RISK OF EXPLOSION OR FIRE!
DO NOT PLACE UNIT IN AN
AREA WHERE FLAMMABLE
GASVAPORSMAYBEPRESENT.
A SPARK COULD CAUSE AN
EXPLOSION OR FIRE!
RISK OF UNIT BURSTING!
DO NOT STORE/OPERATE UNIT
IN FREEZING ENVIRONMENTS!