Mi-T-M HAE Series User manual

Operator's Manual 1
©Copyright 2016 Form #37-1377-E/F/S-022723
OPERATOR'S MANUAL FOR
STATIONARY
ELECTRIC DRIVEN/BELT DRIVE
ELECTRIC HEATED
HOT WATER PRESSURE WASHER
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 it!
3012903
PARTS LIST

2 Operator's Manual
NATIONAL CODES:
NFPA NO. 70 (NEC) NATIONAL ELECTRICAL CODE.
CSA C22.1 CANADIAN ELECTRICAL CODE PART 1.
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
WARNING
TABLE OF CONTENTS
TABLE OF CONTENTS........................................................................................................................... 2
INTRODUCTION ..................................................................................................................................... 3
! IMPORTANT ! ........................................................................................................................................ 3
SAFETY WARNINGS...........................................................................................................................4-8
FEATURES .............................................................................................................................................. 9
INSTALLATION ................................................................................................................ 10
LOCATION AND PLACEMENT:...................................................................................... 10
ELECTRICAL: .................................................................................................................. 10
INSTALLATION.......................................................................................................................................11
WATER SUPPLY:..............................................................................................................11
HIGH PRESSURE CONNECTION:.................................................................................11
PRE-OPERATION CHECKLIST:..................................................................................... 12
PREPARATION...................................................................................................................................... 13
ATTIRE: ............................................................................................................................ 13
PRE-START:..................................................................................................................... 13
UNLOADER:..................................................................................................................... 13
QUICK-CONNECT NOZZLES: ..................................................................................... 14
NOZZLE CONNECTION: ................................................................................................ 14
DUAL LANCE ASSEMBLY WITH ADJUSTABLE PRESSURE:.................................... 15
PRE-START INSPECTION PROCEDURES:................................................................. 15
OPERATING INSTRUCTIONS ................................................................................................17
FLUSHING THE SYSTEM: ............................................................................................ 17
COLD WATER OPERATION:.......................................................................................... 17
HOT WATER OPERATION:............................................................................................. 18
CLEANING WITH DETERGENTS: ............................................................................... 18
SHUTDOWN:.................................................................................................................... 19
MAINTENANCE ......................................................................................................................20
PREVENTIVE MAINTENANCE:..................................................................................... 20
WINTERIZING:............................................................................................................ 21-22
PREVENTIVE OPERATOR MAINTENANCE CHART .................................................. 23
DEALER MAINTENANCE CHART................................................................................. 23
TROUBLESHOOTING ........................................................................................................24-25
WARRANTY........................................................................................................................................... 26
NOTES ...................................................................................................................................27
WARNING: This product can expose you to
chemicals including carbon monoxide, which is
known to the State of California to cause birth
defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
WARNING

Operator's Manual 3
INTRODUCTION
Congratulations on the purchase of your new pressure washer! You can be assured your 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 pressure washer. The contents of this manual are based on the latest product information available at the time
of publication. Manufacturer reserves the right to make changes in price, color, materials, equipment, specications or
models at any time without notice.
! IMPORTANT !
Theseparagraphs aresurrounded bya"SAFETYALERTBOX." Thisboxisused to designate and
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 PROVIDE A 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 removed from the box, 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 Customer Service Representative at 1-800-648-8478.
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
POTENTIAL CONSEQUENCE PREVENTION
SAFETY WARNINGS
WARNING: When using this product, basic precautions should always be observed, including the following:
READ ALL SAFETY WARNINGS BEFORE INSTALLING AND USING PRESSURE WASHER
HAZARD
RISK OF
EXPLOSION OR FIRE
Never leave operating machine unattended.
Do not use this pressure washer to spray
ammable liquids! Flammable liquids can
create fumes which can ignite.
This pressure washer has multiple safety
devices which should never be altered,
modied, removed or made inoperative. If
a device fails, replace immediately with only
genuine manufacturer replacement part.
Serious injury or death may
occur if system safety's are not
properly maintained.
Serious injury or death may
occur from improper installation. Installation of this unit must comply with all local, state and national codes.

Operator's Manual 5
POTENTIAL CONSEQUENCE PREVENTION
HAZARD
RISK OF
ELECTROCUTION
OR
ELECTRIC SHOCK
Serious injury or death could occur if
the pressure washer is not properly
grounded. Your pressure washer
is powered by electricity and may
cause electric shock or electrocution
if not used properly.
Installation of this unit including all
electrical connections must comply
with all local, state and national codes.
(Standards to be followed include NFPA
No. 70/NEC National Electrical Code.
In Canada; Refer to the CSA C22.1
Canadian Electrical Code Part 1)
This unit must be connected to a
grounded, permanent wiring system; or
an equipment-grounding conductor must
be run with the circuit conductors and
connected to the equipment-grounding
lead on the unit.
Make sure the pressure washer is
connected to a properly grounded source
which provides correct voltage and
adequate fuse protection. Disconnect
from power source when not in use or
when making repairs.
Never operate pressure washer with
electrical enclosures open, removed or
damaged.
Do not touch machine while standing in
water or with wet hands. Never let the
electrical supply or any connections lay
in the water.
DO NOT direct spray on or into electrical
installations of any kind! This includes
electrical 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.
Any electrical wiring or repairs performed
on this pressure washer should be
done by authorized service personnel
in accordance with local and national
electrical codes.
Before opening any electrical enclosure,
always shut o󰀨 the pressure washer,
relieve pressure and disconnect the
pressure washer from the power source.
Allow pressure washer to cool down.
Never assume the pressure washer is
safe to work on just because it is not
operating. It could restart at any time!
Electrical shock may occur if
pressure washer is not operated
properly.
Serious injury or death may occur
from contact with electricity.
Serious injury or death may occur if
electrical repairs are attempted by
unqualied persons.
Serious injury or death could result
from improper installation.
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE INSTALLING AND USING PRESSURE WASHER

6 Operator's Manual
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
stream at persons.
This equipment is to be used only by
trained operators.
Always keep operating area clear of all
persons.
To reduce the risk of injury, close
supervision is necessary when using this
equipment near children. 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!
Be prepared to tell a physician exactly what
kind of cleaning agents you were using
by reading the Material Safety Data Sheet
(MSDS) provided with your detergent.
High pressure hoses should be inspected
daily for signs of wear. If evidence of
failure exists, promptly replace all suspect
hoses 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.
Before using pressure washer, or when
quick connecting high pressure hoses and
spray nozzles, be certain the "collar" on the
female quick connect is locked securely to
prevent accidental discharge and that all
quick coupler ttings are secure.
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 o󰀨 the
unit and trigger the gun to release trapped
pressure. (Even after you shut o󰀨 the
unit, there is high pressure water left in the
pump, hose and gun until you release it by
triggering the gun.)
POTENTIAL CONSEQUENCE PREVENTION
HAZARD
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE INSTALLING AND USING PRESSURE WASHER
RISK OF INJECTION
OR
SEVERE CUTTING INJURY

Operator's Manual 7
RISK OF BURNS
RISK OF BURSTING
RISK FROM MOVING PARTS
Serious injury may occur from
touching the heat exchanger.
These areas can remain hot for
some time after the pressure
washer is shutdown.
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 the 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 unit. Do not
start the pressure washer without rst
allowing the unit to thaw.
Never allow any part of your body to
contact the heat exchanger.
POTENTIAL CONSEQUENCE PREVENTION
HAZARD
Serious injury may occur to the
operator from moving parts on the
pressure washer.
Do not operate the unit without all
protective covers in place or make any
adjustments without shutting o󰀨 the
pressure washer, relieving pressure
and disconnecting the pressure washer
from the power source. Allow pressure
washer to cool down. Never assume
the pressure washer is safe to work on
just because it is not operating. It could
restart at any time!
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 is frozen.
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE INSTALLING AND USING PRESSURE WASHER

8 Operator's Manual
RISK OF BODILY INJURY
Serious injury or death may occur
from detergents contacting or
penetrating the skin.
SEEK EMERGENCY MEDICAL CARE if
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 cleaning agents you were using
by reading the Material Safety Data Sheet
(MSDS) provided with your detergent.
Never use any solvents or highly corrosive
detergents 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 for shattering could
occur.
Stay alert-watch what you are doing. Do
not operate 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 when starting and operating the
unit. Failure to do so 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.
DO NOT leave pressurized unit
unattended. Shut o󰀨 the pressure washer
and release trapped pressure before
leaving.
DO NOT operate the unit if you see any
oil or water leaks from the machine. DO
NOT resume operation until the unit has
been inspected and repaired by a qualied
serviceman.
Never make adjustments on the machine
while in operation.
Before servicing the unit: shut o󰀨 the
pressure washer, relieve pressure and
disconnect the pressure washer from the
power source. Allow pressure washer to
cool down. Never assume the pressure
washer is safe to work on just because it is
not operating. It could restart at any time!
POTENTIAL CONSEQUENCE PREVENTION
HAZARD
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.
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE INSTALLING AND USING PRESSURE WASHER
SAVE THESE INSTRUCTIONS

Operator's Manual 9
1. Heat Exchanger
2. High Pressure Hose
3. Pressure Relief Valve
4. Fork Truck Access
5. Ventilation Openings
6. Mounting Bracket
7. Heat Dump Valve
8. High Pressure Pump
9. Pressure Trapping Unloader
10. Electrical Enclosure
11. Electric Motor
12. Electrical Junction Box
13. Plumbing Service Panel
14. Hour Meter
15. Pump Switch w/Indicator Light
16. Access Panel Knobs
17. Nozzle Storage
18. High Pressure Hose
19. High Pressure Water Inlet
20. High Pressure Water Outlet
21. Water Inlet with Strainer
22. Burner Switch w/Indicator Light
23. Adjustable Thermostat
24. Electrical Enclosure
25. High Pressure Hose
26. Trigger Safety Lock
27. Trigger Gun
28. Insulated Lance
29. Adjustable Pressure Dual Lance
30. Quick Connect Nozzle
FEATURES

10 Operator's Manual
1. This unit should be installed indoors by a qualied serviceman in a non-
freezing, dry environment away from damaging winds and rain. 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. Normal precautions should be taken so that excess moisture
does not reach the electrical controls or the power unit.
2. This unit should only be placed on a level surface to ensure proper lubrication
for the water pump while operating. NEVER spray water directly on the unit.
INSTALLATION
ELECTRICAL:
1. Installation of this unit should be performed by a qualied serviceman and
all electrical installation must conform to all local, state and national codes,
including NFPA No. 70 (NEC) National Electrical Code. In Canada; Refer
to the CSA C22.1 Canadian Electrical Code Part 1.
2. This unit comes to you with the wires terminating in a junction box inside
the cabinet. See illustration below, point A. You must supply the incoming
power source.
3. Ensure electrical supply is identical to the specications listed on the pressure
washer data plate.
4. The motor/pump housing cord must be routed through points "B" and "C" in
illustration below, then into the power block in accordance to the wire diagram
provided with the machine (located on the inside of the front service panel).
5. Ensure all connections are secure and covers are replaced.
LOCATION AND PLACEMENT:
RISK OF ELECTROCUTION!
THISUNITMUSTBECONNECTED
TO A PROPERLY GROUNDED
OUTLET.
WARNING
A
B
C

Operator's Manual 11
INSTALLATION
HIGH PRESSURE CONNECTION:
Connect the high pressure discharge hose by connecting one end to the
pressure washer and the other end to the gun assembly. Make certain the
quick connects are securely locked together. (See illustration #2 and #3)
ILLUSTRATION #2
HIGH PRESSURE HOSE CONNECTION
ILLUSTRATION #3
QUICK CONNECT
ILLUSTRATION #1
HOSE CONNECTION
WATER SUPPLY:
1. Select a water supply hose which is a quality grade of garden hose
measuring at least 3/4" ID and no longer than 50'. (See illustration #1)
2. Connect one end of the water supply hose to the water inlet of the unit.
Connect the other end of the hose to your pressurized water supply.
NOTE: If there is a high mineral content in your water, it is recommended
that a water softener be used to prevent the possibility of excessive
scale buildup inside the heat exchanger coil.
3. Be certain all connections are securely tightened.
a. Water supply hose to the Water Inlet on the unit.
b. Water supply hose to the Pressurized Water Supply.
4. Follow the incoming water requirements listed below:
a. Water pressure must be between a minimum of 20 pounds per
square inch (PSI) and a maximum of 65 PSI.
b. Incoming GPM must be approximately one gallon more than
the outgoing GPM stated on the pressure washer I.D. Plate.
(You can check GPM by timing how long it takes to ll a 5 gallon
container.)
c. Incoming water temperature must not exceed 175°F. Excessive
pump damage may result if the water temperature exceeds this
acceptable level.
NOTE: If the water supply is inadequate or the hose is kinked, the unit will
run rough and the heat exchanger will not re.
5. Never allow the unit to operate without the incoming water line attached
and the water supply completely turned on.

12 Operator's Manual
INSTALLATION
FRONT
25.30
33.68
49.61
40.43
INLET
4.40
INLET
1.75
INLET
3.86
OUTLET
21.96
OUTLET
34.30
1.27
1.84
28.00
1.00
29.72
13.64

Operator's Manual 13
QUESTIONS
CODES:
1. Does the electrical supply meet respected codes?
LOCATION:
1. Is the unit installed indoors on a level surface in a dry area protected
from excessive wind, rain and moisture?
ELECTRICAL:
1. Is the unit properly grounded?
2. Do all electrical components used meet requirements shown on
the unit I.D. Plate and is the voltage correct?
GENERAL:
1. Have all operators usingthis unit read the Installation and Operator's
Manual and understood all safety warnings?
2. Has the unit been installed by qualied service people who followed
the Installation and Operator's Manual instructions?
3. Is there ample water supply?
YES NO
PRE-OPERATION CHECKLIST:
Before starting the unit, answer the questions in this checklist:
IF NO WAS MARKED FOR ANY OF THESE QUESTIONS, CORRECT THE
SITUATION BEFORE OPERATINGT.
PREPARATION
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 pressure washer.
PRE-START:
1. Check to ensure the voltage is on.
2. Pump oil level should be checked before each use. Check the oil level with
the dipstick on top of the pump crankcase. (See illustration #4.) The proper
oil level should be at the notch on the dipstick. If the level appears low, use
pump oil SAE20 or 30 non-detergent.
ILLUSTRATION #4
PUMP-REAR OIL GAUGE

14 Operator's Manual
PREPARATION
QUICK-CONNECT NOZZLES:
Various nozzles may be quick connected into the end of the adjustable
pressure dual lance to change the spray pattern. The detergent nozzle has
been pre-installed at the factory. When using Quick- connects (Q.C.), be
certain the connection is securely locked. (See illustration #5). If not, the
high pressure water may shoot the nozzle from the lance, causing severe
injury or serious damage. To determine spray fan, (see illustration #6) refer
to the actual number stamped on the nozzle. The rst two digits indicate the
spray fan in degrees, i.e., 00=0°, 15=15°, 25=25°, 40=40°.
1. The 0° nozzle (RED): This is a blasting nozzle. It delivers a very
concentrated stream of water. Be cautious when using the straight narrow
stream. It is not recommended for use on painted or wood surfaces or
items attached with adhesive backings. Uses: Removing weeds from
sidewalk cracks, stubborn stains from concrete, masonry, aluminum and
steel, caked mud from equipment, and cleaning lawn mower undersides.
2. The 15° nozzle (YELLOW): This is a chiseling nozzle. The spray should
be directed at a 45° angle to the surface and used like a scraper to
remove paint, grease and dirt. Uses: Surface preparation (removing
mildew stains and paint chips).
3. The 25° nozzle (GREEN): This is a ushing nozzle. This pattern is best
suited for ushing dirt, mud, and grime. Uses: Wet sweeping leaves from
walk, curbs and driveways, cleaning stable oors, washing swimming
pool bottoms, degreasing engines.
4. The 40° nozzle (WHITE): This is a wash nozzle. This wide spray pattern
disperses the water pressure over a large area and is recommended
for moderate washing. Uses: Washing down aluminum siding, cleaning
windows, washing vehicles, spraying sidewalks, driveways, and patios.
ILLUSTRATION #5
QUICK CONNECT
ILLUSTRATION #6
Q.C. NOZZLES
1. Ensure the trigger gun is locked in the OFF position. (See illustration
#7)
2. The quick-connect nozzle should be disconnected from the adjustable
pressure dual lance at this time. As shown in illustration #8, retract the
locking ring on the quick-connect tting to remove the nozzle.
ILLUSTRATION #8
NOZZLE CONNECTION
NOZZLE CONNECTION:
WARNING
RISK OF INJECTION CAUSING
SEVERE INJURY!
THE TRIGGER GUN SHOULD
ALWAYSBELOCKEDINTHEOFF
POSITION WHEN NOT IN USE!
NEVER LOOK DIRECTLY AT
THE NOZZLE UNLESS IT IS
DISCONNECTED FROM THE
TRIGGER GUN/DUAL LANCE
ASSEMBLY!
ILLUSTRATION #7
GUN LOCK
UNLOADER:
The unloader has been preset at the factory and should only be adjusted by
a trained serviceman.

Operator's Manual 15
PREPARATION
1. This unit features a dual lance assembly with adjustable pressure which
allows the user to select a high or low pressure "fan" spray. Simply rotate the
adjustable grip on the dual lance to achieve the desired pressure selection.
a. Selection of high pressure can be achieved by turning the adjustable
grip on the dual lance counterclockwise as shown in illustration #9.
b. Selection of low pressure can be achieved by turning the adjustable
grip on the dual lance clockwise as shown in illustration #9. If using
the detergent injector accessory, once the pressure is low enough, this
injector will draw detergent into the system. A water/detergent mixture
exits from both the spray nozzle and detergent nozzle.
1. Before starting the unit, perform the following procedures:
a. Check all hose connections to ensure they are securely tightened.
b. Inspect for system water and oil leaks.
c. Inspect high pressure hoses for kinking, cuts and leaks. If a cut or leak
is found, DO NOT USE HOSE! Replace hose before starting unit. See
"Risk of Injection" warnings. Be sure that all damaged parts are replaced
and that the mechanical problems are corrected prior to operation of the
unit. If you require service, contact your Customer Service Represena-
tive.
ILLUSTRATION #9
DUAL LANCE
DUAL LANCE ASSEMBLY WITH ADJUSTABLE PRESSURE:
PRE-START INSPECTION PROCEDURES:

16 Operator's Manual
WARNING
THE FOLLOWING PAGES CONTAIN OPERATING AND
MAINTENANCE INSTRUCTIONS.
DO NOT ATTEMPT TO OPERATE THIS PRESSURE
WASHERUNTILYOU HAVEREADANDUNDERSTOOD
ALL SAFETY PRECAUTIONS AND INSTRUCTIONS
LISTED IN THIS MANUAL. FOLLOW THE MAINTENACE
INSTRUCTIONS SPECIFIED IN THE MANUAL.
INCORRECT OPERATION OF THIS UNIT CAN CAUSE
SERIOUS INJURY!!
DO NOT ALTER OR MODIFY THIS EQUIPMENT
IN ANY MANNER!

Operator's Manual 17
OPERATING INSTRUCTIONS
Once your unit has been installed by a qualied serviceman and you have
completed the PRE-OPERATION CHECKLIST on pg. 13, you are ready for
operation. The following steps will help you operate your machine safely.
1. This unit has a stainless steel coil which, after setting, may cause the water
remaining in the coil from the previous usage to turn brown or black. This
water must be ushed from the system before start-up. This procedure
should be performed without the gun and adjustable pressure dual lance
installed.
a. Verify the water supply is on.
b. Move the pump switch to the "ON" position to start the pumping unit.
c. Run the unit for 3-5 minutes.
d. Turn o󰀨 machine.
e. Once the system is ushed, connect the trigger gun and
adjustable pressure dual lance to the high pressure hose.
1. Refer to the "Safety Precautions" pgs. 4-8 before starting the unit.
2. Locate the Safety Decals on your unit and heed their warnings.
3. Ensure that the heat exchanger switch is in the "OFF" position.
4. Pointing the trigger gun in a safe direction, unlock the trigger gun and
squeeze the trigger. Brace yourself for possible gun kickback when the
pump starts.
5. Move the pump switch to the "ON" position to start the pumping unit.
6. Once the unit has started, perform the following procedures with the gun
open:
a. Inspect for system water and oil leaks.
b. Inspect high pressure hoses for leaks. If a leak is found, DO NOT TOUCH
HOSE AT LEAK!!! TURN UNIT OFF IMMEDIATELY! Replace hose
before using the unit. See "Risk of Injection" warnings, pg. 7. Be sure
that all damaged parts are replaced and that the mechanical problems
are corrected prior to operation of the unit.
7. At this point, the unit is operating as a cold water pressure washer. Trigger
the gun several times and try adjusting the water pressure by rotating the
grip on the dual lance. NEVER place hand or ngers in front of the nozzle
or look directly into the nozzle! High pressure water creates a risk of severe
injury!
8. Do not allow unit to operate in bypass mode (with trigger closed) for
more than three minutes without triggering the gun. Failure to follow this
simple rule can cause premature failure of pump packing seals, resulting in
costly pump repair.
9. Your pressure washer can deliver high pressure spray and a variety of spray
patterns using cold water. If you wish to use the hot water application or
cleaning with detergents, see pg. 19 for the correct procedures.
RISK OF UNIT DAMAGE!
BE CERTAIN THE GUN
& DUAL LANCE ASSY. ARE
NOT CONNECTED TO THE
UNIT WHILE FLUSHING THE
SYSTEM. FLUSHING ALLOWS
MINERAL DEPOSITS TO BE
RELEASEDFROMTHESYSTEM
WHICH WOULD OBSTRUCT
OR DAMAGE THE GUN AND
NOZZLEASSEMBLYRESULTING
IN COSTLY REPAIRS.
RISK OF INJECTION CAUSING
SEVERE INJURY!
KEEPCLEAROFNOZZLE!NEVER
PLACE HAND OR FINGERS IN
FRONT OF NOZZLE!
DO NOT DIRECT DISCHARGE
STREAMATPEOPLEOR PETS!
RISK OF DAMAGE!
DONOTALLOWSPRAYPATTERN
TO REMAIN ON A FIXED AREA
FORANEXTENDEDPERIOD OF
TIME. POSSIBLE DAMAGEMAY
OCCUR TO THE AREA.
FLUSHING THE SYSTEM:
COLD WATER OPERATION:
CAUTION
DANGER
CAUTION

18 Operator's Manual
OPERATING INSTRUCTIONS
HOT WATER OPERATION:
1. Follow the steps outlined for "COLD WATER OPERATION."
2. Move the heat exchanger switch to the ON position. On initial start-up,
water will begin turning hot in approximately 60 seconds and will reach
maximum temperature in approximately 3-5 minutes, provided the trigger
remains squeezed. The heat exchanger will stop ring when the trigger
is released.
3. Set thermostat to the desired setting.
At this point, the unit is operating as a hot water pressure washer. Be certain
to be extremely cautious when adjusting the pressure and controlling the
trigger gun/dual lance assembly to avoid the possibility of burns.
This feature is designed for use with mild detergents only. Do not use
corrosives as they will cause extensive damageas well as pose a considerable
safety hazard.
1. Refer to "Detergent Cleaning Precautions" pg. 8 before working with
detergents. Be certain to wear protective safety attire as stated on pg.
14.
2. Quick connect the detergent injector between the unit outlet and the high
pressure hose.
3. Prepare detergent solution according to label directions. (Never pump
acids, alkalines, abrasive uids or solvents through the unit.)
4. Fully immerse the strainer end of the clear vinyl detergent hose into the
detergent solution.
5. Adjust the amountof detergent desired byturning the detergentadjustment
knob to the desired setting.
6. Turn the pressure control handle on the dual lance assembly
counterclockwise to lower pressure and divert water ow through the
detergent nozzle.
NOTE: This injection system is designed to apply detergents under low
pressure only. It will not allow detergent solutions to be introduced
into the system in high pressure mode.
7. To apply solution, unlock the trigger gun and squeeze the trigger. In a few
moments a detergent/water mixture will exit the nozzle. Start spraying
the lower portion of the surface being cleaned and move up, using long
overlapping strokes. Applying from the bottom up helps avoid streaking.
Allow to soak briey. Avoid working on hot surfaces or in direct sunlight
to minimize the chances of the detergent drying, which may result in
damaging surfaces. Be certain to clean a small section at a time.
8. When you nish washing, rinse by simply turning the variable pressure
control handle clockwise. It will take about 30 seconds to purge all
detergent from the line. For best rinsing results, start at the top and work
down.
9. Siphon a gallon of water through the detergent system after each use.
This prevents the possibility of corrosion or detergent residue causing
mechanical problems during the next use.
RISK OF BURN!
THE WATER TEMPERATURE
COULD BECOME VERY
HOT DURING HOT WATER
OPERATION. BE CAUTIOUS
WHENADJUSTING PRESSURE
ORCONTROLLINGTHETRIGGER
GUN/DUALLANCEASSEMBLY.
CLEANING WITH DETERGENTS:
WARNING

Operator's Manual 19
OPERATING INSTRUCTIONS
SHUTDOWN:
1. If the heat exchanger switch is still on, turn it o󰀨.
2. Squeeze the trigger and discharge the water for a period of 3-5 minutes to
cool the heat exchanger and high pressure hose. (Insu󰀩cient cool down
period of the high pressure hose will cause excessive wear and eventual
rupturing of the hose.)
3. Move the pump switch to the "OFF" position to stop the pumping unit.
If machine has the time-delay shut-down option, wait for timer to time-
out and shut machine o󰀨. See below for more information on time-delay
shutdown.
4. Trigger the gun momentarily to relieve trapped pressure.

20 Operator's Manual
PREVENTIVE MAINTENANCE:
LEAKS:
Promptly eliminate any leaks found in the pumping system by
removing suspect parts, applying thread sealant to the threads
and reinstalling.
NOTE: If using teon tape, be certain no tape gets inside any plumbing to
prevent the possibility of a plugged spray nozzle.
QUICK COUPLERS:
There are o-ring seals inside the couplers which will deteriorate.
To replace, simply install a replacement o-ring to correct the leak.
(See illustration #10) (Additional o-rings can be purchased from
your dealer.)
NOZZLE:
Water ow through the spray nozzle will erode the orice,
making it larger, resulting in a pressure loss. Nozzles should be
replaced whenever pressure is less than 85% of the maximum.
The frequency of replacement will depend upon such variables
as mineral content in the water and number of hours the nozzle
is used.
PUMP:
1. Change the pump oil after the rst 50 hours of operation.
After initial change, every 3 months or 250 hour intervals are
recommended. If oil appears dirty or milky, changes may be
required in greater frequency.
2. Locate the pump oil drain hose.
3. Use an empty container to catch the oil and remove the plug
from the drain line. (See illustration #11)
4. Let all the oil drain from the pump and replace drainplug. Dispose
of used oil according to local, state and national regulations.
5. Fill the pump crankcase to the notch on the dipstick with pump
oil SAE20 or 30 non-detergent. Do not overll.
BELT TENSION:
Ensure unit is o󰀨. Remove the side panel or lift lid to inspect the v-belt
for wear and tightness. If the v-belt needs to be replaced or tightened,
follow the procedures listed below and see illustration #12.
REPLACEMENT:
1. Loosen the four pump mounting bolts (A).
2. Loosen the two alignment nuts approximately one inch on the
alignment bolts (B1 & B2).
3. Slide the pump toward the motor to loosen belts.
4. Remove and replace belt.
TIGHTEN: (If v-belt was not replaced, you will need to loosen the
nuts on the alignment bolts B1 and B2 before proceeding.)
1. Tighten B2 alignment bolt. The pump will shift to the left until
there is tension on the belt. Then tighten B2 nut.
2. Tighten B1 alignment bolt, until sheaves are straight. (Use a
straightedge for alignment.)
3. Push on the v-belt to check belt deection for tension. There
should be 1/4" to 1/2" deection for correct tension.
4. If sheaves are straight and tension is correct, tighten B1 nut and
the four pump mounting bolts (A).
5. If tension is not correct, repeat steps 6 and 7 until correct
alignment and tension is achieved. Tighten the four mounting
bolts (A) when completed.
6. Loosen B2 nut, tighten B2 bolt, tighten B2 nut.
7. Loosen B1 nut, tighten B1 bolt, tighten B1 nut.
MAINTENANCE
ILLUSTRATION #10
QUICK COUPLERS
ILLUSTRATION #12
BELT TENSION ADJUSTMENT
ILLUSTRATION #11
PUMP OIL DRAIN