WerkMaster Stealth User manual

OPERATOR’S MANUAL
IMPORTANT:
Read before using your new WerkMaster Burnisher
WerkMaster Grinders and Sanders Inc.
6932 Greenwood Street, Burnaby, BC V5A 1X8
tel: [phone] | toll free: 1.866.373.WERK | fax: [phone]
www.werkmaster.com | email: [e-mail]

!!LIABILITY LIMITATIONS
The remedies of the user set forth under provisions of warranty outlined at
the end of this manual are the exclusive and total liability of WerkMaster
Grinders and Sanders Inc, herein referred to as WerkMaster. with the
respect to their sale of the equipment and service furnished hereunder, in
connection with the performance or breach thereof, or from the sale,
delivery, installation, repair or technical direction covered by or furnished
under the sale, whether based on contract, warranty, negligence,
indemnity, strict liability, or otherwise shall not exceed the purchase price
of the unit of equipment upon which such liability is based.
WerkMaster will not in any event be liable to the user, any successors in
interest or any beneficiary or assignee relating to this sale for any
consequential, incidental, indirect, special or punitive damages arising out
of this sale or any breach thereof, or any defects on, or failure of, or
malfunction of the equipment under this sale based upon loss of use, lost
profits or revenue, interest, lost goodwill, work stoppage, impairment of
other goods, loss by reason of shutdown or non-operation, increased
expenses of operation of the equipment, cost of purchase or replacement
power of claims of users or customers of the user for service interruption
whether or not such loss or damage is based on contract, warranty,
negligence, indemnity, strict liability, or otherwise.
WerkMaster reserves the right to modify, alter and improve any part or
parts without incurring any obligation to replace any part or parts
previously sold without such modified, altered or improved part or parts.
No person is authorized to give any other warranty or to assume any
additional obligation on WerkMaster’s behalf unless made in writing and
signed by an officer of WerkMaster.
USE ONLY GENUINE WERKMASTER PARTSANDACCESSORIES
FOR YOUR OWN SAFETY, THE SAFETY OF OTHERS AND THE LIFE
OF YOUR MACHINE.
!
OPERATOR’S MANUAL
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CONTENTS
Introduction...........................................................................................................3
Machine Descriptions...........................................................................................4
Specifications .......................................................................................................4
Safety Precautions................................................................................................5
Danger...................................................................................................................5
Warning.................................................................................................................7
Caution..................................................................................................................7
Operator Responsibilities......................................................................................8
Propane Safety Information.................................................................................9
Facts About Liquid Propane Gas (LPG)................................................................9
Facts About Propane Tanks..................................................................................9
Recommended Purge Procedures....................................................................... 9
Filling Propane Tanks..........................................................................................10
Storing Propane Tanks........................................................................................11
Storing Machine...................................................................................................11
Transporting Machine..........................................................................................11
Engine Emissions and Carbon Monoxide Safety.............................................12
CO Exposure Limits.............................................................................................12
Methods To Reduce the Risks of CO Poisoning..................................................12
Machine Components.........................................................................................13
Controls and Instruments.....................................................................................13
Engine Ignition Switch.........................................................................................14
Stealth ACCU-Sense Emissions Monitoring System...........................................15
Spectre AUTO-Sense Emissions Monitoring System..........................................17
Hour Meter/Tachometer.......................................................................................18
EZ Bak Tilt Operation...........................................................................................19
Fuses...................................................................................................................20
Machine Operation..............................................................................................21
Pre-Operation Checklist.......................................................................................21
Installing the Propane Tank..................................................................................21
Starting the Machine............................................................................................22
Burnishing............................................................................................................23
Idling and Stopping the Machine.........................................................................24
Maintenance.........................................................................................................24
General................................................................................................................24
Inspecting the Oil Level.......................................................................................24
Changing the Oil..................................................................................................25
Replacing the Oil Filter.........................................................................................26
Inspecting and Replacing the Spark Plug............................................................27
Inspecting and Replacing the Oil Filter................................................................27
Inspecting and Replacing the Fuel Hose.............................................................28
Changing the Engine Dust Filter..........................................................................29
Maintaining the Cooling Fin.................................................................................29
Inspecting and Changing the Pad and Pad Holders............................................30
Maintaining the Belt.............................................................................................30
Maintaining the Battery........................................................................................31
Adjusting the Wheels...........................................................................................32
Cleaning the Dust Bag STEALTH ONLY..............................................................32
Maintenance Schedule........................................................................................33
Troubleshooting...................................................................................................34
Limited Warranty..................................................................................................36
Warranty...............................................................................................................37
Safety Awareness Form for Propane Machines................................................39
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NTRODUCTION
Congratulations on your purchase of a WerkMaster Propane Burnisher.
WerkMaster machines allow professional surface prep, polishing,
grinding, edging, buffing and restoration of virtually any surface material,
concrete, terrazzo, and stone. This manual is provided to assist you in the
operation and maintenance of your WerkMaster machine.
WerkMaster is dedicated to our customers, their safety, and to providing
information, services, and products that meet their needs.
Read this manual and all safety precautions before attempting to
operate or perform service on your WerkMaster machine. Failure to
follow the safety precautions may result in damage to the machine,
severe personal injury or death.
If you or your operator cannot read English, have this manual explained
fully before attempting to operate the machine.
It is the owner/operator’s responsibility to ensure the air exchange system
installed in any location where a propane burnisher is being operated is of
sufficient capacity and quality to support the use of such a machine.
OSHA/WCB and other county, state, federal or provincial agencies publish
guidelines on the subject that are usually found in the in the possession of
the respective owners and/or parent companies of any location or chain of
locations. Failure on the part of the owner/operator to ensure that a
propane grinder/polisher can be operated safely in a given location may
lead to sickness or even loss of life.
This Operator’s Manual has been prepared for instructional purposes
only. WerkMaster does not claim or assume any responsibility for the
operator’s action or safety.
To be completely aware of what local authorities require, contact the
OSHA or WCB agency in your community.
IMPORTANT
OPERATOR’S MANUAL
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MACHINE DESCRIPTIONS
WerkMaster Propane Burnishers include the Stealth and the Spectre
models. The WerkMaster family of machines include the Scarab, Termite
XT, Viper XT, Raptor XT, TITAN XT and the COLOSSOS XT models. To
see the complete family of WerkMaster machines, informational videos,
tooling guide, chemicals and accessories visit our website at
www.werkmaster.com.
STEALTH
■Accu-Sense™ Emissions Monitoring System with ClearSKY
Technology
■Ergonomic design improves form and function
■Catalytic muffler exceeds EPAand OSHAminimum requirements
■Adjustable handle and soft tread wheels for optimal comfort and
results
■Easy access battery and oil reservoir for no fuss maintenance
■EZ Bak™ action allows for easy pad change
■Improved engine dust filter reduces filter cleaning by 50%
■Bail throttle with electric clutch for easy start-up and smooth
operation
■DustMizer™ centrifugal dust collection system
■American made aluminum castings with durable steel skirt
■Featuring an 18HP 603cc engine from Kawasaki with a 2 Year
Warranty
SPECTRE !
■Auto-Sense™ Emissions Monitoring System with ClearSKY
Technology
■Catalytic muffler exceeds EPAand OSHAminimum requirements
■Adjustable handle and soft tread wheels for optimal comfort and
results
■Easy access battery and oil reservoir for no fuss maintenance
■EZ Bak™ action allows for easy pad change
■American made aluminum castings with durable steel skirt
■Standard electric clutch
■Featuring an 18HP 603cc engine from Kawasaki with a 2 Year
Warranty
SPECIFICATIONS
MODEL
STEALTH
21”
STEALTH
28”
SPECTRE
21”
SPECTRE
28”
Dimensions
(l x w in)
(l x w cm)
58 x 24.5
148 x 62.25
65.6 x 31.5
167 x 80
56 x 24.5
142.25 x 62.25
61.5 x 31.5
156 x 80
Weight (lb/kg)
242 / 110
262 / 119
215 / 97
234 / 106
Pad Size (in/cm)
21 / 53
28 / 71
21 / 53
28 / 71
Pad Speed (RPM)
2000
1700
2000
1700
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SAFETY PRECAUTIONS
Failure to read this manual and all safety precautions before attempting
operate your WerkMaster machines may result in severe personal injury
or death.
This machine is manufactured for commercial use only.
This machine is designed and manufactured for indoor use in burnishing
hard floor surfaces. WerkMaster does not recommend use of this machine
in any environment other than an indoor environment. The machine is
designed to burnish most modern types of flooring including composition
tile, stone, marble, terrazzo, and resilient floor covering, and some coated
wood floors. Even though NFPA 11.13.2.3 (b) says,”the use of floor
maintenance machines in buildings frequented by the public, including the
times when such buildings are occupied by the public, shall require the
approval of the authority having jurisdiction” WerkMaster suggests usage
when occupancy of a given work area is minimal.
DO NOT use:
•In occupied nursing homes, hospitals, daycare centers, etc.
•By unqualified or untrained personnel
•Unless properly maintained and adjusted
•On areas with obstructions such as thresholds, floor outlet boxes,
etc.
•In areas where loose debris or other objects are present
•In rooms and areas without proper ventilation
DANGER indicates severe bodily injury or death may occur to you or
other persons if safety precautions are ignored or not adhered to.
Read and observe all DANGER statements found in the Operator’s
Manual and on the machine.
‣Operate this machine in a well-ventilated area. It is the responsibility of
the machine operator, machine owner, and the site manager to ensure
that the air exchange system where the machine is to be used is in
compliance with local building codes and is operated properly. Failure to
operate the machine in a well-ventilated area could lead to sickness,
injury, or death from carbon monoxide (CO) exposure
‣This machine emits CO, a colorless, odorless, non-irritating gas. The
first symptoms of CO exposure include headache, drowsiness,
dizziness, and nausea. If you should experience any of these symptoms
while operating this machine, shut off the machine and move to a well-
ventilated area. Have the machine tested for CO emissions by a
qualified service technician before using it again.
IMPORTANT
DANGER
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‣Prolonged or high exposure to CO may result in vomiting, confusion,
and collapse in addition to loss of consciousness and muscle
weakness. If such symptoms occur, call 911 for emergency medical
attention. If you have experienced these symptoms DO NOT operate
this machine or any other propane machine until cleared by a physician.
Excessive exposure to CO may result in death.
‣Propane is highly flammable. If you smell propane, immediately shut the
machine off and take it outside the building.
DO NOT:
• Use the machines again until a qualified service technician
has corrected the propane leak.
• Use an ignition source such as a cigarette lighter near the
propane machine.
• Smoke near the propane machine.
• Vent a propane tank inside a building.
• Store propane tanks inside a building.
‣The machine has parts, including the pad assemblies, that can cause
severe injury if touched while they are moving.
DO NOT:
•Allow any part of the body or clothing to come into
contact with the machine while parts are moving
•Try to change attachments while the machine is running
•Allow other people to come near the machine while it is in
operation
•Allow the machine to run attended
•Leave the machine in a place where unauthorized or
untrained personnel could use the machine
•Run the machine with the pad center damaged or missing
•Operate the machine if the machine has loose parts
•Run the machine with unsecured guards or shields
‣Federal law and California State law prohibits the following acts or the
causing thereof:
1) the removal or rendering inoperative by any person other than
for purposes of maintenance, repair, or replacement of any
device or element of design incorporated into any new engine for
the purpose of emission control prior to its sale or delivery to the
ultimate purchaser or while it is in use, or
2) the use of the engine after such device or element of design
has been removed or rendered inoperative by any person.
Among the acts presumed to constitute tampering involve the
parts/systems listed below:
•Throttle body and internal parts
•Spark plugs
•Magneto or electronic ignition system
•Air cleaner elements
•Crankcase
•Cylinder heads
•Breather chamber and internal parts
•Intake pipe and tube
•Regulator
•Fuel lock-off
•Carburetor and internal parts
•Fuel filter element
NOT an all-inclusive list.
OPERATOR’S MANUAL
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DO NOT tamper with the original emission related parts.
Tampering with the Emission Control System is prohibited and will
VOID THE WARRANTY.
WARNING indicates injury may occur to you or other persons if
safety precautions are ignored or are not adhered to. Read and
observe all WARNING statements found in the Operator’s manual
and on the machine.
‣Modifications or alterations to the machine can lead to personal
injury or damage to the machine. DO NOT make unauthorized
modifications or alterations to the machine; this VOIDS ALL
WARRANTIES.
‣The muffler and engine become hot while in operation and remain
hot long after the machine is shut off; this can cause severe burns.
DO NOT touch these parts of the machine until they have
cooled.
‣To avoid injury safety goggles, safety shoes and safety clothing are
recommended while operating the machine.
‣Continuous exposure to high noise levels can cause hearing loss.
Hearing protection is recommended while the machine is in operation.
‣Machine vibration may cause tingling or numbness in the fingers or
hands. Gloves are recommended to reduce machine vibration. If tingling
or numbness persists, shut off the machine. If the vibration is caused by
loose parts, adjust or tighten these parts before using the machine
again.
CAUTION indicates damage may occur to the machine or to other
property if safety precautions are ignored or are not adhered to. Read and
observe all CAUTION statements found in the Operator’s manual and on
the machine.
‣NEVER overfill the propane tank. ONLY fill to 80%. Overfilling the
propane tank is the number one cause of problems with a propane
machine. Overfilling may cause the engine to run poorly or not at all.
‣A dirty engine filter can cause overheating. Check and replace following
recommended maintenance schedule page .
‣Overheating can be caused by dirty or insufficient or low levels of oil.
Check oil before each use, and fill or change as needed.
WARNING
CAUTION
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‣NEVER overfill the engine with oil. Overfilling can cause irreparable
damage to the engine.
‣DO NOT engage starter for more than 5 seconds. Allow a 10 section
cool down for second failed start-up attempt.
‣Perform all recommended scheduled maintenance. Regular
maintenance of your propane powered floor machine is necessary to
keep it safe working condition.
‣Before starting machine ensure all safety devices are in place and
functioning properly. Before starting machine do a maintenance and
safety check. See page .
‣When using machine, go slowly on inclines and slippery surfaces. Use
care when operating machine in reverse.
‣When servicing machine, stay clear of moving parts. DO NOT wear
loose clothing when working on machine. Block machine wheels before
raising or jacking up machine. Use hoist stands that will support the
weight of the machine. Wear eye and ear protection when using
pressurized air or water. Disconnect battery connections before
servicing machine. Only use replacement parts supplied by WerkMaster
or a WerkMasterAuthorized Distributor or Service Center.
DO NOT operate this machine before carefully reading and understanding
the operation manual.
The operator is responsible for performing the recommended daily
maintenance and checkups of the machine to keep it in good working
condition. The operator must inform the service mechanic or supervisor
when recommended maintenance procedures are required as described
in the MAINTENANCE section of this manual.
We recommend taking advantage of a service contract from your
WerkMasterAuthorized Distributor or Service Center. Order parts and
supplies only from an Authorized WerkMaster Distributor.
During and after operation, perform the recommended daily and hourly
procedures outlined in the Maintenance Chart.
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Operator
Responsibilities

PROPANE SAFETY INFORMATION
As a fuel, propane gas is unmatched for both safety and dependability. It
has been used a a domestic household fuel for over half a century, and for
over thirty years as an internal combustion engine fuel.
Propane is a highly flammable fuel that is contained under pressure as a
liquid. Vaporized gas has a similar explosive force to gasoline and
mixtures as low as 2% LP gas to air may be ignited in a closed
environment. Care should be exercised to avoid escaping vapor as it can
freeze skin and cause frost bite. Vaporized fuel is heavier than air and will
collect in the lowest confined space available.
Propane tanks are constructed according to ASME or Federal DOT
#4ET20 pressure safety codes. Including the tank, all valves and fittings
are UL listed. Propane gas is noncorrosive and will not rust the inside of a
tank. Should the tank exterior become damaged or rusted, discontinue
use. DO NOT tamper with the tank gauges or safety relief valves. NEVER
use a tank not intended for use with a propane burnisher. DO NOT
substitute tanks that are used with a barbecue grill, etc. WerkMaster
recommends having propane tanks tested once a year by an authorized
National LP GasAssociation propane dealer.
The fuel tank is supplied directly from the manufacturer and is void of fuel.
The tank must be purged at the time of the first fill. Local propane fuel
vendors should be familiar with this operation and will provide this service.
DO NOT attempt to repair the tank. Return the tank to your propane if
necessary.
!!!!!
New containers may contain vapor, air, or other contaminants. It is
essential that these be removed before filling the container and putting it
into service. Air in the container will cause abnormally high pressure, with
the result that the pressure relief valve may open. Air in the system is also
likely to cause a lean mixture, making ignition difficult. If a tank is
suspected of being depressurized or open to the atmosphere for a period
of time, it must be re-purged.
See an authorized propane dealer for proper purging of your new tank.
Symptoms of a non-purged propane tank:
•Relief valve opens due to over-pressurized propane tank creating
hazardous situation
•Moisture in the propane tank
•Burnisher operates initially but shuts down when the fuel mixture
becomes too lean.
WARNING
OPERATOR’S MANUAL
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Facts About
Liquid Propane
Gas (LPG)
Facts About
Propane Tanks
Recommended
Purge Procedures

ALWAYS have an authorized propane dealer fill your tank.
NEVER OVERFILL THE PROPANE TANK. ONLY FILL TO 80%.
OVERFILLING PROPANE TANKS IS HAZARDOUS. EXPANSION
MUST BE ALLOWED FOR.
FILL THROUGH THE SERVICE VALVE ONLY.
These machines use a 20 lb (9.1 kg) capacity aluminum or steel cylinder,
which meets the DOT4E240 standards. These standards are also listed
by UL. In addition, the steel cylinder meets meets European TPED
specifications and is CE compliant.
The engine and the fuel system on your WerkMaster machine are
designed to run on vapor propane NOT liquid propane. Liquid propane
and vapor propane are NOT interchangeable. Interchanging the fuel will
VOID THE WARRANTY.
Use a vapor withdraw cylinder NOT a liquid withdraw cylinder on this
machine. The use of a liquid withdraw cylinder on a vapor withdraw
system could freeze the regulator and create a fire hazard.
If the regulator freezes, stop the burnisher and take the tank outside and
inspect. Use gloves or pliers to open the bleeder valve and purge the tank
until only vapor is escaping.
Pressure Liquid Level
Relief Gauge Sight Gauge
Bleeder Service Valve Service Valve
Valve
ONLY authorized, trained personnel should have access to propane tanks
and machines.
WARNING
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Filling Propane
Tanks

Propane tanks should NOT be stores in buildings used by employees, the
public or frequented by anyone passing through.
When not in use tanks should always be stored outside in an upright position
in a secure, tamper-proof, steel mesh storage cabinet. The cabinet may be
located next to the building, but with at least five (5) feet (1.5 m) of space
between the cabinet and the nearest building opening (door or window).
NEVER store spare propane tanks in an enclosed van or trailer, or near
an open flame or heat-producing device..
PROPANE TANKS SHOULD ALWAYS BE INSTALLED, USED.
TRANSPORTED AND STORED IN AN UPRIGHT POSITION.
The National Fire Protection Association (NFPA) Standard for Storage and
Handling of LP Gas is the appropriate authority for safe propane use.A
copy of this publication is available through the National Fire Protection
Association (1.800.344.3555) or www.NFPA.org.
Store the machine in a dry location, temperature not to exceed 120º F
(50º C), away from objects that may fall and damage it, and away from
open flames or heat-producing devices.
NEVER store machine with propane tanks installed.
Make sure the machine is properly cleaned before storing.
When transporting a propane-powered machine with the propane tank
installed, the tank should be securely fastened and the service valve
closed. Any propane tanks not installed should be upright and securely
fastened to avoid movement and damage.
Check the propane tanks for over-filling BEFORE transporting; If over-
filled, use the bleeder valve to vent the excess propane outside in a safe
area.
When loading onto or unloading off of a truck or trailer, turn the machine
OFF.
ONLY use a truck or trailer that will support the weight of the machine.
Block the wheels and tie the machine securely to the truck or trailer.
OPERATOR’S MANUAL
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Transporting
Machine
Storing Machine
Storing Propane
Tanks

ENGINE EMISSIONS AND CARBON MONOXIDE SAFETY
All engines powered by by LPG (Liquid Propane Gas), including this engine,
Carbon Monoxide (CO). it is a FATAL POSION gas that is colorless, odorless,
tasteless, and non-irritating. It is produced by incomplete combustion of
carbonaceous material such as LPG.
Failure to provide for proper venting of CO produced during the operation
of combustion powered engines may result in SERIOUS INJURY OR
DEATH to the operator and those in the contaminated area.
The effects of CO can experienced at different exposure levels,
depending on the health of the individual. Conditions that affect the
tolerance of the individual are smoking, age, temperature, humidity, and
other conditions.
Symptoms include lightheadedness, confusion, headaches, vertigo,
drowsiness, dizziness and nausea.
If the operator experiences any of these symptoms STOP USING THE
MACHINE IMMEDIATELY. Move to a well-ventilated area. If symptoms
persist, get medical attention.
Prolonged or high exposure to CO may result in vomiting, confusion, and
collapse in addition to loss of consciousness and muscle weakness; call
911 for emergency medical attention. If you have experienced these
symptoms DO NOT operate the machine or any other propane machine
until cleared by a doctor. Excessive exposure to CO may result in death.
All distributors, owners, and operators should be aware of the potential
effects of CO and the methods used to prevent over-exposure.
Please refer to OSHA, WCB or local workplace industry guidelines for CO
exposure limits.
Air Exchange and CO Diffusion
CO does not mix with air on its own. Air currents can “stir” the CO and
dilute the concentration values by mixing it with the available air. Stirring
can occur by walking around and with the use of fans and ventilation
systems.
Application Considerations
Consider the operation you are performing and the size of the area to be
worked. A low movement operation in a smaller area will increase the
build-up of the CO, while a much quicker operation over the same area
may not have the same potential for CO build-up.
Stirring or CO mixing MUST be forced by the use of fans in order to
reduce the high concentration of CO when activity is concentrated to a
smaller area while performing a low movement operation.
DANGER
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Methods to Reduce
the Risks of CO
Poisoning
CO Exposure
Limits

Air Quality Monitoring
Use of a monitor/detector is essential for the safe operation of any
equipment that has the potential to produce CO. See local regulations for
the approved monitors/detectors and their correct methods of use.
Room Size and Time Estimations
The concentration and volume of CO production, the size of the area, and
the amount of air exchange are factors involved with determining safe
time limits for operation in a specific room size.
The smaller the work area and the slower the movement, the greater the
build-up of CO. Fans MUST be used to stir the air and reduce the
concentration of CO.
Maintenance of Equipment
LPG engines are dependent on engine tune-ups and air filter
replacements. CO concentration (production) increases when the air to
fuel ration becomes fuel rich. Follow the recommended Maintenance
SChedule for the engine.
CO Safety Equipment Available
WerkMaster propane machines are equipped with a catalytic muffler and
an ACCU-Sense monitoring system on the Stealth and an AUTO-Sense
monitoring system on the Spectre to reduce the CO emissions and
promote a safer work environment.
MACHINE COMPONENTS
For the STEALTH:
Bail Throttle Hour Meter Key Switch
Handle Pivot Knob ACCU-Sense Light Display
For the SPECTRE:
AUTO-Sense
Emissions
Monitoring
System
!!!!!!! Engine
Throttle
!
OPERATOR’S MANUAL
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Controls and
Instruments

The STEALTH and SPECTRE feature a key switch ignition.
For the STEALTH:
•START: Turn the key clockwise to START to engage the engine starter
motor. Once the engine starts release the key. ALWAYS start the
machine with the bail throttle in the SLOW IDLE position.
•RUN: This is the position of the key when the engine is running.
•OFF: Turn the ignition key to the OFF position to stop the engine.
ALWAYS close the propane tank valve to stop the engine, then turn
the ignition switch OFF.
DO NOT try to start machine with the bail throttle in the operating position.
After the engine has started, pull the bail throttle to the operating position.
The clutch will engage automatically and the engine will throttle to the
right speed. DO NOT pull the bail throttle with the burnishing head to the
floor.
Release the bail throttle; the clutch will automatically disengage and the
engine speed will return to idle.
WARNING
OPERATOR’S MANUAL
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Engine Ignition
Switch

For the SPECTRE:
•START: Turn the key clockwise to START to engage the engine starter
motor. Once the engine starts release the key. ALWAYS start the
machine with the engine throttle in the SLOW idle position.
•RUN: This is the position of the key when the engine is running.
•OFF: Turn the ignition key to the OFF position to stop the engine.
ALWAYS close the propane tank valve to stop the engine, then turn
the ignition switch OFF.
The engine throttle controls the engine speed. To increase the engine
speed, move the hand lever forward. For the idle position pull the lever
back.
The Stealth ACCU-Sense is an emissions monitoring device that monitors
the exhaust emissions and will shut the engine down if the emission levels
are too low or too high.
After engine starts, the YELLOW alert light will flash for a 3 minute warm-
up cycle of the ACCU-Sense system. The machine may be operated
during the warm-up period. After the warm-up cycle, the alert light will go
out. None of the ACCU-Sense lights will be illuminated as long as the
machine is running safely.
Any light that is on when the engine stops will remain illuminated for 20
seconds to indicate the reason for the machine shut down.
OPERATOR’S MANUAL
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STEALTH
ACCU-Sense
Emissions
Monitoring System

OIL: The light will come on when there is low oil pressure. If the engine
looses oil pressure, the engine shuts down until the condition is corrected.
The light comes on each time the engine is stopped.
TILT/IDLE: The light will come on when the machine is tilted to the pad
change position and the engine shuts down. If the machine is allowed to
idle for more than 4 minutes, the light flashes for 1 minute, then the
engine shuts down.
RED ACCU-SENSE SERVICE: If carbon monoxide levels exceed a pre-
set level, the light will flash. The machine will shut down after the light
flashes continuously for 1 minute. If the machine does not operate
normally after the engine air filter is checked and cleaned, it must be
serviced by a qualified technician.
YELLOW ACCU-SENSE ALERT: If the light comes on during normal
operation, check and clean the engine air filter. Check the carburetor air
filter for holes, tears, or punctures and replace if damaged. If the light still
remains on, the machine must be serviced by a qualified technician.
OXYGEN SENSOR: If light comes on during normal operation, check the
oxygen sensor wire for a snug fit into the harness and for a snug fit of the
harness into the ACCU-Sense board. If the light still remains on, the
machine must be serviced by a qualified technician.
TURN GAS OFF: Light comes on to remind the operator to turn off the
gas after the engine shuts down.
BATTERY: The light comes on when the battery voltage is low indicating
the need to service the charging system.
The oxygen sensor must reach operating temperature before it will start to
send signals to the ACCU-Sense module. This warm-up period is
approximately 3 minutes. After the initial 3 minutes, the module will start
evaluating the signal from the oxygen sensor. If the module receives an
abnormal reading for a period of 1 minute, the unit will shut down.
If the machine is also allowed to idle for more than 4 minutes, an indicator
light will flash for 1 minute and then the engine will shut down. If this
happens, turn the key to the OFF position for several seconds to clear the
ACCU-Sense module and restart the machine.
Once the engine has started, advance the bail throttle to operating
position and start the operation. With the engine at full throttle, under load,
the signal from the oxygen sensor should be within the normal operating
ranges for safe operation.
If the engine’s air intake filter needs to be serviced, or an over-filled
propane tank has been installed by mistake, or there is a problem with the
fuel system that causes the oxygen sensor’s signal to be out of range,
ACCU-Sense will shut the unit down after 1 minute. The unit can be re-
started after clearing the module by turning the key switch OFF. If
corrections have not been made to the unit, ACCU-Sense will continue to
shut the unit down until the problem is corrected.
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Engines tend to go to a lean burn if allowed to idle for even short periods.
Even at high idle speeds most engines will continue to lean downward. it
is always best to shut the engine off when it is not being used to do work.
Remember, the engine is always creating emissions as long as it is
running.
The best manner to operate a unit equipped with ACCU-Sense is as
follows:
•With the bail throttle in the idle position, turn the key switch to the
START position. Once the engine starts, advance the bail throttle to
the operating position.
•When ready to stop operation, release the bail throttle. If the unit will not
be used within 45 seconds, turn the key switch to the OFF position, or
if the unit will not be returned to service within a few minutes it is best
to turn the gas valve on the tank off first and let the engine consume
all fuel that is in the lines. Once the engine dies, turn the key switch to
the OFF position.
•When ready to restart, open the gas valve on the tank and turn the key
switch to the START position. Once the engine has started, move the
bail throttle to the operating position and return to operation.
The Spectre AUTO-Sense is an emissions monitoring device that
monitors the exhaust emissions and will shut the engine down if
the emission levels are too low or too high.
The monitor must receive a signal from the oxygen sensor in order to
function. The oxygen sensor must reach operating temperature before
it will start to send signals to the AUTO-Sense module. This warm-up
period is approximately 3 minutes. After the initial 3 minutes, the
module will start evaluating the signal from the oxygen sensor. If the
module receives an abnormal reading for a period of 1 minute, the
unit will shut down.
If the machine is also allowed to idle for more than 4 minutes, an indicator
light will flash for 1 minute and then the engine will shut down. If this
happens, turn the key to the OFF position for several seconds to clear the
AUTO-Sense module and restart the machine.
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SPECTRE
AUTO-Sense
Emissions
Monitoring System

Once the engine has started, advance the bail throttle to operating
position and start the operation. With the engine at full throttle, under load,
the signal from the oxygen sensor should be within the normal operating
ranges for safe operation.
If the engine’s air intake filter needs to be serviced, or an over-filled
propane tank has been installed by mistake, or there is a problem with the
fuel system that causes the oxygen sensor’s signal to be out of range,
AUTO-Sense will shut the unit down after 1 minute. The unit can be re-
started after clearing the module by turning the key switch. If corrections
have not been made to the unit, AUTO-Sense will continue to shut the unit
down until the problem is corrected.
Engines tend to go to a lean burn if allowed to idle for even short periods.
Even at high idle speeds most engines will continue to lean downward. it
is always best to shut the engine off when it is not being used to do work.
Remember, the engine is always creating emissions as long as it is
running.
The best manner to operate the machine is:
With the engine throttle in the SLOW position, turn the key switch to the
START position. Once the engine starts, advance the throttle to full
throttle FAST.
When ready to stop the machine, move the engine throttle to the SLOW
position. If the machine will not be used within 45 seconds, turn the key
switch to the OFF position, or if the machine will not be used within a few
minutes, it is best to turn the gas valve off first and let the engine consume
all fuel that is in the lines. Once the engine dies, turn the key switch to the
OFF position.
When ready to restart, open the gas valve on the tank, put the engine
throttle in the SLOW position and turn the key switch to the START
position. Once the engine has started, move the engine throttle to the
FULL position and return to operation.
The hour meter/tachometer records the number of hours the machine has
been powered ON. The hour meter reading is used to mark the
recommended maintenance intervals. It also displays the engine speed.
The meter displays hours when the machine is turned OFF and the
engine speed when the machine is turned ON.
STEALTH SPECTRE
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Hour Meter/
Tachometer

The handle on both the STEALTH and the SPECTRE is designed to be
positioned upright to allow for the machine to be tilted back.
STEALTH SPECTRE
For the STEALTH:
1. Close the valve on the propane tank. Allow the engine to stop and turn
the machine OFF.
2. Remove the propane tank.
3. Loosen the handle pivot knobs so that the handle can slide.
4. Pull the handle out until it stops.
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EZ Bak Tilt
Operation