Prochem BLAZER PLUS User manual

F
980073
11/26/03
P PR RO OC CH HE EM M
B
BL LA AZ ZE ER R P PL LU US S
Operating Instructions (ENG)
MODELS: BLAZER PLUS
Read
instructions before operating the machine.
Mobile Cleaning Unit

MACHINE DATA LOG/OVERVIEW
BLAZER 980073 09/16/02
1
Welcome…and congratulations on your purchase of the BLAZER PLUS Mobile Cleaning Unit. This instruction
manual is a guide for operating and servicing your PROCHEM unit. Read this manual completely before
installing or operating this unit.
This unit offers you personal convenience. All of your instrumentation and controls have been positioned to give
you easy access for operation and daily maintenance.
Proper operation and service are essential to the efficient functioning of this unit. When maintained correctly, this
unit will have a long, trouble-free life.
The service methods described in this manual are explained in such a manner that servicing may be performed
accurately and safely. Proper service varies with the choice of procedure, the skill of the mechanic, and the tools
or parts available. Before attempting any repair, make certain that you are thoroughly familiar with this equipment
and are equipped with the proper tools. Any questions pertaining to operating or servicing this unit should be
directed to your nearest PROCHEM dealer.
THIS UNIT MUST BE INSTALLED BY THE DEALER FROM WHOM YOU PURCHASED IT IN ACCORDANCE
WITH PRESCRIBED PROCHEM INSTALLATION PROCEDURES.
MAKE CERTAIN THAT THE WARRANTY CARD IS FILLED OUT BY THE DISTRIBUTOR FROM WHOM YOU
PURCHASED THIS UNIT AND RETURNED TO PROCHEM!
This operation and service manual is written specifically for the PROCHEM BLAZER PLUS Mobile Cleaning
Units which are manufactured by:
PROFESSIONAL CHEMICALS CORPORATION
325 SOUTH PRICE ROAD
CHANDLER, ARIZONA 85224
Information in this document is subject to change without notice and does not represent a commitment on the part
of Professional Chemicals Corporation.
YOUR DEALER
Name: __________________________________________________________________________________________________
Address: _______________________________________________________________________________________________
Phone Number: _________________________________________________________________________________________
MODEL _______________________________________
DATE OF PURCHASE __________________________
SERIAL NUMBER ______________________________
SALES REPRESENTATIVE # _____________________
DEALER NAME ________________________________
OPERATIONS GUIDE NUMBER ___________________
PUBLISHED __________________________________________

TABLE OF CONTENTS
BLAZER 980073 09/16/02
2
Machine Data Log/Overview..........................1
Table of Contents...........................................2
HOW TO USE THIS MANUAL
How to use this Manual..................................1-1
SAFETY
Safety Instructions.........................................2-1
Hazard Intensity Level...................................2-3
INSTALLATION & OPERATION
Technical Specifications................................3-1
Receiving Your Unit.......................................3-2
Installation Requirements..............................3-3
Fuel.................................................................3-3
Engine Oil.......................................................3-3
Chemicals & Water........................................3-4
Water Pumping System.................................3-5
Heat Transfer System....................................3-6
Vacuum System.............................................3-9
Chemical System........................................3-10
Water Supply connection............................3-11
Filling Auxiliary Water Tank........................3-11
High Pressure Hoses..................................3-11
Vacuum Hose.............................................3-13
Starting Unit (Cleaning Mode)....................3-13
Chemical Pump Priming.............................3-13
Waste Pump...............................................3-14
Cleaning......................................................3-14
Upholstery Cleaning....................................3-14
Stair Tool Cleaning......................................3-14
Shutdown & Daily Maintenance..................3-15
Freezing Protection.....................................3-16
Removing Anti-freeze..................................3-17
MAINTENANCE & SERVICE
Maintenance
Maintenance Schedule............................4-1
Engine......................................................4-2
Vacuum Pump.........................................4-3
Water Pump.............................................4-4
Strainer Basket (Waste Tank).................4-4
BypassManifold......................................4-4
Drive Belts, Pulleys And Hubs................4-5
Float Valve, Water Pump Inlet Filter.......4-5
Vacuum Inlet Filter...................................4-5
Outlet Y-Strainer, Check Valve...............4-6
Chemical Pump, Chemical &
Heat Bypass Valves ................................4-6
Nitrogen Accumulator..............................4-6
PressureRegulator..................................4-6
Vacuum Hoses ........................................4-6
Battery.....................................................4-7
Engine Exhaust Heat Exchanger............4-7
General Service Adjustments
Engine Speed..........................................4-8
Vacuum Relief Valve...............................4-8
Vacuum exhaust Heat Exchanger..........4-8
High Pressure Hoses..............................4-8
Vacuum Pump Drive Belts......................4-9
Water Pump Drive Belt............................4-9
Float Valve...............................................4-9
BypassManifold......................................4-10
CheckValve............................................4-10
Chemical Pump.......................................4-10
Packing Nut Adjustment,
Chemical Metering & Selector Valves ....4-11
PressureRegulator..................................4-11
Waste Tank to Console Connection.......4-12
Fire Extinguisher......................................4-12
Battery Replacement...............................4-12
Auxiliary Water Tank Connection............4-13
Troubleshooting.......................................4-15

TABLE OF CONTENTS
BLAZER 980073 07/05/03
3
PARTS LIST
Front Panel.........................................5-1
Framework.........................................5-3
Engine................................................5-5
Vacuum Pump...................................5-9
Water Pump.......................................5-11
Chemical Pump..................................5-15
BypassManifold.................................5-19
Bypass Solenoid................................5-21
Water Inlet..........................................5-23
Water Box ..........................................5-25
Vacuum Exhaust Heat Exchanger....5-27
Vacuum Heat Exchanger...................5-29
Waste Tank........................................5-31
Automatic Pumpout............................5-33
Hose Accessories ..............................5-37
Wand-Tri-Jet......................................5-39
Wand-Dual-Jet...................................5-41
Stair Tool............................................5-43
Upholstery Tool..................................5-45
Shelf Assembly..................................5-47
Water Tank, Dual
With Demand Pump...........................5-49
Demand Pump...................................5-51
Hose Reel..........................................5-53
Water Box With
Auxiliary Water Tank..........................5-55
Waste Tank With
Auxiliary Water Tank..........................5-57
Wiring Diagram..................................5-59
Warranty ............................................5-60

HOW TO USE THIS MANUAL
BLAZER 980073 09/16/02
1-1
This manual contains the following sections:
-HOW TO USE THIS MANUAL
-SAFETY
-OPERATIONS
-MAINTENANCE
-PARTS LIST
The HOW TO USE THIS MANUAL section will tell
you how to find important information for ordering
correct repair parts.
Parts may be ordered from authorized dealers.
When placing an order for parts, the machine model
and machine serial number are important. Refer to
the MACHINE DATA box which is filled out during
the installation of your machine. The MACHINE
DATA box is located on the inside of the front cover
of this manual.
The model and serial number of your machine is on
the lower front panel of the machine.
The SAFETY section contains important information
regarding hazard or unsafe practices of the
machine. Levels of hazards is identified that could
result in product or personal injury, or severe injury
resulting in death.
The OPERATIONS section is to familiarize the
operator with the operation and function of the
machine.
The MAINTENANCE section contains preventive
maintenance to keep the machine and its
components in good working condition. They are
listed in this general order:
-Engine
-Vacuum Pump
-Drive Belts, Water Pump, Pulleys &
Hubs
-Chemical Pumps
-Hoses
-Exhaust Heat Exchanger
-General Service Adjustments
-Troubleshooting
The PARTS LIST section contains assembled parts
illustrations and corresponding parts list. The parts
lists include a number of columns of information:
-REF – column refers to the reference
number on the parts illustration.
-PART NO. – column lists the part
number for the part.
-DESCRIPTION – column is a brief
description of the part.
-SERIAL NO. FROM – column indicates
the first machine the part number is
applicable to. When the machine design
has changed, this column will indicate
serial number of applicable machine.
The main illustration shows the most
current design of the machine. The
boxed illustrations show older designs. If
column has an asterisk (*), call
manufacturer for serial number.
-NOTES – column for information not
noted by the other columns.
NOTE: If a service or option kit is installed on your
machine, be sure to keep the KIT INSTRUCTIONS
which came with the kit. It contains replacement
parts numbers needed for ordering future parts.
MODEL _____________________________________
DATE OF PURCHASE ________________________
SERIAL NUMBER ____________________________
SALES REPRESENTATIVE # ___________________
DEALER NAME ______________________________
OPERATIONS GUIDE NUMBER __________________
PUBLISHED ________________________________
CONDENSED OPERATING INSTRUCTIONS

BLAZER 980073 09/16/02 2-1
IMPORTANT SAFETY INSTRUCTIONS
When using this machine, basic precaution
must always be followed, including the following:
READ ALL INSTRUCTIONS BEFORE USING THIS MACHINE.
Read the operator's manual before installing or starting this unit. Failure to adhere to instructions
could result in severe personal injury or could be fatal.
Operate this unit and equipment only in a well-ventilated area. Exhaust fumes contain carbon
monoxide which is an odorless and deadly poison that can cause severe injury or fatality. DO NOT run
this unit in an enclosed area. DO NOT operate this unit where the exhaust may enter any building
doorway, window, vent, or opening of any type.
Gasoline is extremely flammable and its vapors can explode if ignited. Store gasoline only in
approved containers, in well-ventilated, unoccupied buildings away from sparks or flames. Never carry
any gasoline or flammable material in the vehicle. Fumes may accumulate inside the vehicle and ignite,
causing an explosion.
DO NOT store any type of flammable material in the vehicle.
This unit must be operated with the vehicle or trailer doors open in order to ensure adequate
engine ventilation.
DO NOT operate engine if gasoline is spilled. Avoid creating any ignition until the gasoline has been
cleaned up. Never use gasoline as a cleaning agent.
DO NOT place hands, feet, hair, or clothing near rotating or moving parts. Avoid any contact with
moving parts! Rotating machinery can cause injury or fatality.
Never operate this unit without belt guards. The high speed moving parts, such as belts and pulleys,
should be avoided while this unit is running. Severe injury, damage, or fatality may result.
DO NOT service this unit while it is running. The high-speed mechanical parts as well as high
temperature components may result in severe injury or severed limbs.
Never touch electrical wires or components while the engine is running. They can be sources of
electrical shock.
Engine components can get extremely hot from operation. To prevent severe burns, DO NOT touch
these areas while the engine is running or immediately after the engine is turned off.
DO NOT touch the exhaust diverter valve or any part of the exhaust system while this unit is
running. Severe burns may result.
Before servicing this unit, allow it to "cool down." This will prevent burns from occurring.
Water under high pressure at high temperature can cause burns, severe personal injury, or
fatality. Shut down machine, allow to cool down, and relieve system of all pressure before
removing valves, caps, plugs, fittings, filters, and bolts.
These symbols mean WARNING or CAUTION. Failure to follow warnings and
cautions could result in fatality, personal injury to yourself and/or others, or
property damage. Follow these instructions carefully!

BLAZER 980073 09/16/02
2-2
DO NOT leave the vehicle engine running while operating this unit.
Dangerous Acid, Explosive Gases! Batteries contain sulfuric acid. To prevent acid burns, avoid contact
with skin, eyes and clothing. Batteries produce explosive hydrogen gas while being charged. To prevent a
fire or explosion, charge batteries only in well ventilated areas. Keep sparks, open flames, and other
sources of ignition away from the battery at all times. Keep batteries out of the reach of children. Remove
all jewelry when servicing batteries.
Before disconnecting the negative (-) ground cable, make sure all switches are OFF. If ON, a spark will
occur at the ground cable terminal which could cause an explosion if hydrogen gas or gasoline vapors are
present. When disconnecting the battery, ALWAYS disconnect the negative (-) terminal FIRST.
DO NOT smoke around the unit. Gas fumes may accumulate and be ignited. The battery is also
extremely flammable. This will prevent possible explosions.
DO NOT damage the vehicle in any manner during installation. When routing fuel lines DO NOT
place the hose in any location where damage may occur to the hose or vehicle. Avoid any contact with
moving parts, areas of high temperature, brake lines, fuel lines, muffler, catalytic converter, or sharp
objects.
DO NOT cut or splice any of the vehicle fuel lines during fuel line installation. This may result in fuel
leaks and potentially dangerous conditions. There is no fuel solenoid shut off on this unit. Use only the
provided abrasion resistant fuel hose for fuel lines. When traversing the vehicle floor with fuel lines,
always use a bulkhead adapter. This will prevent leakage and ensure that the hose is not punctured by
vehicle vibration abrasion.
DO NOT exceed your vehicle's weight limit. The console with waste tank and accessories weighs
approximately 670 lbs. Make certain that the vehicle has the correct axle rating. This will prevent unsafe
vehicle driving conditions.
We require high-back seats on all vehicles in which units are to be installed for head and neck
protection. We recommend using a metal partition between the seats and equipment.
DO NOT operate this unit without the water supply attached and turned on. The water pump and
other vital components may be seriously damaged if this unit is permitted to operate dry without water.
This unit is equipped with a low pressure shutdown device. DO NOT bypass or operate this unit without
the low pressure shut-down switch.
Keep your vehicle work area clean. Wands, stair tools, and other accessories must be securely
fastened before driving the vehicle.
All high pressure hoses must be rated for 3000 PSI at 250°F. Thermoplastic hoses do not meet these
specifications and should not be used. Severe burns and injury may result if the hoses do not meet these
requirements.
The winterizing loop hose assembly, Part #10-805380, is for winterizing use only. If used
improperly, live steam may escape from this hose, causing it to whip around. Burns or injury may result.
Make certain that you receive complete training by the distributor from whom you purchased this
unit.
This unit uses high pressure and temperature. Improper or irresponsible use may result in serious
injury.
Do not modify this unit in any manner. Improper modification can cause severe personal injury or
fatality.
CALIFORNIA PROPOSITION 65 WARNING: Engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth defects, or other reproductive harm.

HAZARD INTENSITY LEVEL
BLAZER 980073 09/16/02 2-3
The following WARNINGLABELS are found on your BLAZER PLUS console. These labels
point out important Warnings andCautions which should be followed atalltimes. Failure to
follow warnings and cautions could result in fatality, personal injury to yourself and/or others, or
property damage. Follow these instructions carefully! DO NOT remove these labels.
Order Part #48-941212 to get a complete set of decals (safety and instrumentation) for your
BLAZER PLUS cleaning unit. The following decals must be placed in a prominent spot on the
vehicle that your unit is to be installed in where access is given to operate the unit. See next
page for suggested locations for these decal.
Decal, Fuel Clean-Up Decal, Carbon Monoxide
Part #48-941317 Part #48-941316

HAZARD INTENSITY LEVEL
BLAZER 980073 09/16/02
2-4
The decals should be placed in a prominent spot on
the vehicle where access is given to operate the
unit. The illustrations above suggest the location
and placement of the decals.
When placing the decals, be sure the area is clean
of any dirt and possible wax build-up. Place the
decal by starting at on edge and smoothing the
decal over to the other edge. This will help eliminate
air bubbles and allow the decal to adhere better.
After a time the decals may become damaged or
worn. If they become unreadable, they should be
replaced.

OPERATION
BLAZER 980073 09/16/02 3-1
TECHNICAL SPECIFICATIONS
ITEM DIMENSION/CAPACITY
Engine speed 3200 rpm (high speed)
1400 rpm (idle speed)
Water pump rpm 1480 rpm
Vacuum pump rpm 3200 rpm
Water flow rate 3.5 GPM
Water pump pressure 1000 PSI (maximum)
Vacuum relief valve 13” Hg
Waste tank capacity 52 gallons (at shut off)
Console weight 486 lbs.
Console weight (with waste tank & accessories) 670 lbs (1103 lbs. If waste tank is full)
TORQUE VALUES
Engine hub 264 inch lbs 22 foot/lbs
Vacuum pump hub 192 inch/lbs 16 foot/lbs
JET SIZING:
Prochem recommends floor tool tip sizing not exceed a total of “.04”. Using larger jet sizes on your BLAZER
PLUS may reduce cleaning temperatures.
Example: Dual jet wand uses two 11002 jets. (110° spray angle w/ 02 orifice)
02 x 2 = 04
Upholstery tool jet size: 80015 Stair tool jet size: 9502

OPERATION
BLAZER 980073 07/29/03
3-2
RECEIVING YOUR UNIT AND
DEALERS RESPONSIBILITY
The PROCHEM dealer from whom you purchased
this mobile cleaning unit is responsible for the correct
installation of this machine. The dealer is also
responsible for initial training of your operators and
maintenance personnel in the proper operation and
maintenance of this unit.
ACCEPTANCE OF SHIPMENT
Every part of your PROCHEM BLAZER PLUS
cleaning unit was carefully checked, tested, and
inspected before it left our manufacturing plant. Upon
receiving the unit, make the following acceptance
check:
1. The unit should not show any outward signs of
damage. If damaged, notify the common carrier
immediately.
2. Check your equipment and packing list. The
standard PROCHEM BLAZER PLUS unit should
arrive equipped with the following items (unless
otherwise specified) and any optional
accessories which were ordered:
EQUIPMENT LIST:
1. PROCHEM BLAZER PLUS console.
2. Operation and service manual with engine,
water pump, and vacuum pump manuals.
3. Installation bolting kit.
4. Installation mounting plates
5. Hose clamps for vacuum hoses.
6. Carpet wand.
7. Waste tank w/float switch.
8. Waste tank filter and strainer basket.
9. 100 ft. vacuum hose.
10. 1 vacuum hose connector.
11. 100 ft. of 1/4" high pressure hose with quick
connects.
12. 50 ft. water supply hose with quick connect.
OPTIONAL EQUIPMENT:
15. Winterizing loop hose. Part #10-805380.
16. Upholstery tool and stair tool.
17. Extra wands.
18. Hose reel.
19. Extra vacuum hoses. Part #10-805060.
20. Extra vacuum hose connectors.
Part #12-800078.
21. Extra high pressure water hoses.
Part #10-805122.
22. Dual auxiliary water tanks with demand pump.
Part #66-945260.
23. Automatic waste pump kit. Part #66-945530.
24. Galvanized drip tray. Part #56-501607.
25. Van storage unit. Part #65-950392.
26. Water softener. Part #66-945430.

OPERATION
BLAZER 980073 09/16/02 3-3
INSTALLATION REQUIREMENTS
NOTE: Your distributor from whom you
purchased this mobile cleaning unit is
responsible for the correct installation of this
machine. The dealer is also responsible for
initial training of your operators and
maintenance personnel in the proper operation
and maintenance of this unit.
1. The unit should NOT be mounted in any motor
vehicle of less than 1/2 ton capacity.
The console with waste tank and accessories
must NOT exceed the vehicle's axle weight limit.
2. If mounting in a trailer, make certain that the
trailer is rated for the total weight of the UNIT
AND TRAILER. Electric or hydraulic brakes
should be provided, and a strict compliance with
any State and Federal vehicle laws must be
maintained.
3. The vehicle tires should have a load rating
above the combined vehicle and unit weight.
4. We do not recommend using flooring materials
that absorb water. This could result in rust and
corrosion of the vehicle floor and equipment.
5. Padding under rubber floor mats should be
removed before installing this unit.
6. We highly recommend using a galvanized drip
tray under the console (Part #56-501607).
7. If using a trailer, the BLAZER PLUS console
should be positioned so that it balances properly
with respect to the axle. Ten percent (10%) of
the overall unit weight (without accessories or
water) should be on the tongue.
Example: If loaded trailer weight is 2,000 lbs.,
tongue weight needs to be a minimum of 200
lbs. to tow properly.
FUEL REQUIREMENTS
Use unleaded gasoline ONLY. DO NOT use any
gasoline additives. We recommend the use of clean,
fresh, unleaded gasoline intended for automotive
use. High octane gasoline should NOT be used with
the engine on this unit.
ENGINE OIL REQUIREMENTS
Use high quality detergent oil of API (American
Petroleum Institute) service class SF or SG. Select
the viscosity based on the air temperature at the
time of operation as shown in the following table.
NOTE: Using other than service class SF or SG
oil or extending oil change intervals longer than
recommended can cause engine damage.
NOTE: Refer to Engine Manufacturers owners
Manual for oil use requirements.

OPERATION
BLAZER 980073 09/16/02
3-4
CHEMICAL REQUIREMENTS4.
C
The PROCHEM BLAZER PLUS, due to its chemical
injection pump design, can be used with a variety of
water-diluted chemical compounds (either acidic or
alkaline), depending on the job to be done. However,
to obtain optimum results with this unit, we
recommend using the PROCHEM line of chemicals.
For information on using the cleaning compounds,
refer to the PROCHEM chemical manual.
WATER REQUIREMENTS
Hard water deposits will adversely affect the
plumbing and heat exchange systems on this unit.
The map below will give you an idea of where areas
of high water hardness may occur. However, any
water supply obtained from a well is almost always
hard water and a water softener will be needed to
protect your equipment.
NOTE: Equipment malfunction or component
failure caused by hard water scaling is NOT
covered under the warranty.
If you are operating this unit in an area where the unit
will be using water in which the hardness exceeds
3-1/2 grains, we highly recommend a suitable water
softener be installed. If using a water softener, it must
have a five (5) GPM (or greater) flow capacity without
any hose constrictions.
Using a water softener will reduce maintenance and
decrease down time caused by hard water scaling. It
will also allow cleaning chemicals to be more
effective in lower concentrations.
If you require a water softener, PROCHEM has a
model to meet your needs. Please contact your
nearest distributor for information, price, and
availability.

OPERATION
BLAZER 980073 09/16/02 3-5
WATER PUMPING SYSTEM
See Figures 1 and 2.
Cold water enters the console through the water
inlet connection located on the lower front panel.
The water flows to the water box through a float
valve, which shuts off water flow when the water box
is full.
Water then flows from the water box, through a
strainer, into the water pump where it is pressurized.
This pressurized water is pumped to the pressure
regulator which provides and maintains the desired
pressure setting.
Any volume of water not used in the cleaning
process flows from the pressure regulator to the
vacuum exhaust heat exchanger.
Water flows through the pre-heat radiator-type heat
exchanger where heat is transferred from the
vacuum pump exhaust. The heated water then
returns from the vacuum exhaust heat exchanger to
the water box.
If the temperature in the water box exceeds 180°F,
a temperature relief valve will open and bleed a
small amount of hot water into the waste tank,
allowing cool water to flow into the water box.
When the operator opens the tool valve, water flows
through the engine exhaust heat exchanger coils,
where it is heated from engine exhaust flowing
through it.
Next, the hot water flows from the engine exhaust
heat exchanger, through a check valve and
Y-strainer, to the outlet manifold. This is where
chemical injection occurs. The hot solution then
flows into the cleaning tool.
A small amount of hot water constantly bleeds
through the bypass manifold, which contains a small
orifice, to the water box.
A temperature switch on the heat exchanger outlet
will shut down the engine if the water temperature
exceeds 275°F. If this occurs, consult the
Troubleshooting section of this manual to determine
the cause of overheating before restarting your unit.
HEAT TRANSFER SYSTEM
See Figures 1 and 2.
Water is heated through a two stage heat exchange
system which utilizes engine exhaust and vacuum
pump exhaust.
Water flows through an inlet hose to the water box
and then to the water pump where it is pressurized.
It then travels to the pressure regulator manifold.
This manifold contains a nitrogen-charged
accumulator which helps reduce pressure
fluctuations and dampen water pump pulsations.
Any volume of pressurized water not used in the
cleaning process bypasses from the pressure
regulator manifold to the vacuum exhaust heat
exchanger.

OPERATION
BLAZER 980073 09/16/02
3-6
The vacuum exhaust heat exchanger utilizes
vacuum pump exhaust as it is leaves the vacuum
pump. The warm air flows through a radiator-type
heat exchanger prior to discharging out to the
atmosphere. The water is heated as it flows through
this heat exchanger. From the vacuum exhaust heat
exchanger, the warm water flows back to the water
box.
When the operator opens the tool valve, the
water flows through the engine exhaust heat
exchanger where it is heated by extremely hot
engine exhaust.
The primary heat exchanger is an engine exhaust
chamber containing a stainless steel heating coil.
Water flows through the coil and is heated by the
engine exhaust as it leaves the engine. The water,
still under pressure and hot, is piped to the outlet
manifold where chemical is injected, and then the
mixture flows to the cleaning tool.

OPERATION
BLAZER 980073 09/16/02 3-7
FIGURE 1

OPERATION
BLAZER 980073 09/16/02
3-8
FIGURE 2

OPERATION
BLAZER 980073 09/16/02 3-9
VACUUM SYSTEM
Vacuum flow is initiated by the vacuum pump, with
air and water being drawn into the vacuum inlet at
the front of the console.
The mixture then flows through a strainer basket into
the waste tank. Air exits the waste tank through a
100-mesh filter, and then flows into the vacuum
pump. A vacuum pump relief valve has been
provided for vacuum pump protection.
The air is discharged from the vacuum pump
through the stage one heat exchanger where the
heated vacuum exhaust blows across a
radiator-type heat exchanger before discharging into
the atmosphere.
A level sensor switch located near the top of the
waste tank will shut the unit down before the waste
tank reaches its full capacity. This protects the
vacuum pump from water damage.
Use of a DEFOAMER will help prevent damage to
the unit by a build-up of foam in the waste tank,
which may be caused by some chemicals (foam
build-up will not activate float switches).

OPERATION
BLAZER 980073 09/16/02
3-10
CHEMICAL PUMPING SYSTEM
The chemical is drawn from the chemical container
through a strainer into the flow meter. The flow
meter indicates the rate of chemical flow.
The chemical then flows through a check valve into
a pulse-powered chemical pump.
Next, the chemical pump injects the chemical
through a check valve to the 3-way selector valve on
the control panel. This valve may turn the chemical
flow ON, OFF, or PRIME the chemical pump.
The chemical then flows through a metering valve to
the solution outlet. This valve controls the rate of
flow of chemical injection into the cleaning solution
which is indicated on the flow meter.

OPERATION
BLAZER 980073 09/16/02 3-11
Operate this unit and equipment only in a well-
ventilated area. Exhaust fumes contain carbon
monoxide which is an odorless and deadly
poison that can cause severe injury or fatality.
DO NOT operate this unit where the exhaust may
enter any building doorway, window, vent, or
opening of any type.
CHECK FOR ADEQUATE FUEL
Check the fuel tank to be certain there is adequate
fuel to complete the job. This unit uses
approximately 1.0 gallons of fuel per hour at the full
RPM cleaning speed.
REMOVE TOOLS FROM VEHICLE
Remove any toolsor hosesfrom the van which you
will require.
WATER SUPPLY CONNECTION
NOTE: Before connecting your water hose to the
supply faucet, flush out the faucet until the water
is free of any debris. Flush out any debris which
may be in your water inlet hose.
1. Connect the water supply hose to the water
inlet quick-connect at the front of the unit.
Connect the hose to the water supply faucet.
NOTE: Never use your waste pump outlet hose
as a water inlet hose. Use only clean hoses for
water inlet.
2. Turn the water supply faucet on. The water
will fill the water box.
FILLING AUXILIARY WATER TANK
Your cleaning unit may be equipped with an auxiliary
water tank mounted underneath the console. To fill
the auxiliary water tank:
1. Attach supply hose (part #10-805295) to supply
faucet.
2. Connect supply hose to auxiliary tank quick
connect on the right side of tank.
3. Turn on water supply. Fill tank.
4. Turn supply faucet off and remove supply hose.
HIGH PRESSURE HOSE
Before starting the unit, connect the pressure hose
to the outlet connection at the front of the unit.
Connect the cleaning tool to the pressure hose.