Minuteman Mirage M220021K17 Guide

Mirage®
Propane
Burnisher
OPERATION SERVICE PARTS CARE
M220024KA
M220028KA
M220021N14
M220024N20
M220028N20
Revised 11/98
Model:
M220021K17
M220021K17C
M220024K17
M220024K17C
M220028K17
M220028K17C

TABLE OF CONTENTS
Page
1 Unpacking Instructions, User Tips
2 - 4 General Warning Information
5 - 6 Engine Set-Up
7 Operation
8 - 10 General Maintenance Information
11 - 12 Trouble Shooting
13 - 23 Engine Specifications
24 Warranty Information
Back Cover Warranty

1
•Always check fuel system for leaks with soapy water.
(Hoses, regulators, connections)
•Never smoke while operating or working on propane buffer.
•Do not attempt to change a pad while buffer engine is
running.
•Keep hands, feet, hair, clothing, etc. away from buffing
pad, pulleys, and any other moving parts on equipment.
•If you smell gas, do not touch any electric switch,
extinguish any open flame and contact your gas supplier,
and open windows.
•If there is any smell of propane fuel, check immediately
for leaks.
•Do not store any other flammable liquids or vapors in the
vicinity of propane storage area, machine storage area or
any other appliance.
•Do not place flammable objects such as matches, fuel,
etc., close to the engine while it is running.
•Never attempt to repair a propane fuel tank by yourself.
Tanks can only be repaired by a Department of
Transportation authorized facility.
•For repairs or adjustments on your Propane Buffer use
only an authorized Minuteman Service Center.
Visible escaping gas vapor is extremely
cold (ICE). Degrees (-44) avoid contact.
Propane gas is heavier than air. The gas
will settle to the lowest possible area and build upwards.
Build-up of propane vapor in any enclosed
area, can cause an explosion if ignited. Operate only in
well-ventilated areas.
CAUTION
!
CAUTION
!
USER TIPS
•Allow only qualified and trained personnel to operate a
Minuteman Propane Buffer.
•Always maintain your Minuteman Propane Buffer, follow
operating and maintenance instructions.
•Always check oil level before starting.
•Always keep accurate records of maintenance and service
in a maintenance log book.
•Never overfill a propane fuel tank. Be sure to follow safety
instructions for venting overfilled tanks in safety section
in this manual.
•Never leave machine unattended with engine running.
•Never change or alter fuel system unless authorized by
Minuteman International Inc. Service Department.
•Always keep nuts and bolts tightened and hose
connection snug.
•Always clean recoil dust filters after 1 hour of use, and
keep propane buffer clean.
•Always store propane tank outside in an approved,
secured, and tamper proof enclosure to provide safety
from vandalism and accidents.
•Never use a non-UL listed fuel tank on your propane buffer.
•Always operate your propane buffer, with exhaust (muffler)
pointed away from merchandise, furniture, etc. Heat from
exhaust may cause damage.
•Never use a spray buff product over top of the engine.
This could cause damage to engine if product got into
cooling system.
•For all engine repairs refer to the engine manual included
with this parts and instruction book.
•Engine will not start if rego coupling is crossed, (fuel line
connection) make sure fuel line connection is properly
done.
CAUTION
!
INSPECTION
Carefully unpack and inspect your Burnisher for shipping damage. Each unit is tested and thoroughly inspected before
shipment and any damage is the responsibility of the delivering carrier who should be notified immediately.
ENGINES
Engines are shipped with oil & coolant. Refer to engine manual for correct weight and quantity. Briggs V-twin 16 hp,
Briggs 14 hp single cylinder, Kawasaki. Before starting engine check all levels. Do not overfill.
PROPANE TANK
The tank supplied with this equipment is a vertical vapor withdrawal 20 lb. tank. Do not overfill. Fill tank to 80% of rated
capacity. Safety fill, Aluminum unpolished, polished, and steel. All propane tanks are equipped with this special warning
sticker. Please read.
UNPACKING INFORMATION
WARNING: Vapor withdrawal tank weight fill only! Failure to weight fill tank will void
warranty and cause damage to propane components! Tare weight is stamped
on the tank.

2
SAFETY PRECAUTIONS
FUEL SYSTEM
•DO NOT fill fuel tanks while engine is running.
•DO NOT smoke or use an open flame in the vicinity of
the engine or fuel tank. Internal combustion engine fuels
are highly flammable.
•Fuel line must be LP approved, adequately secured, and
free from leaks. Piping at the engine should be approved
flexible line. Do not use copper piping for flexible lines as
copper will work harder and become brittle enough to
break.
•Be sure all fuel supplies have a positive shut-off valve.
PROTECT AGAINST MOVING PARTS
•Do not wear loose clothing in the vicinity of moving parts,
such as PTO shafts, flywheels, blowers, couplings, fans
belts, etc.
•Keep your hands away from moving parts.
EXHAUST SYSTEM
•Exhaust products of any internal combustion engine are
toxic and can cause injury, or death if inhaled. When
operating the engine in a confined area, make sure the
ventilation system is operating properly.
•DO NOT use exhaust gases to heat a compartment.
•Make sure that your exhaust system is free of leaks.
Make sure that exhaust manifolds are secure and are
not warped by bolts unevenly torqued.
EXHAUST GAS IS DEADLY!
Exhaust gases contain carbon monoxide, a poisonous gas
that can cause unconsciousness and death. It is an
odorless and colorless gas formed during combustion of
hydrocarbon fuels. Symptoms of carbon monoxide
poisoning are:
Before operating the engine, read the Operator’s Manual
and become familiar with it and the equipment. Safe and
efficient operation can be achieved only if the equipment is
properly operated and maintained.
The following symbols, found throughout this manual, alert
you to potentially dangerous conditions to the operator,
service personnel, or the equipment.
This symbol warns of immediate
hazards that will result in severe personal injury or
death.
This symbol refers to a hazard or unsafe
practice that can result in severe personal injury or
death.
This symbol refers to a hazard or unsafe
practice that can result in personal injury or product or
property damage.
Fuels, electrical equipment, batteries, exhaust gases and
moving parts present potential hazards that can result in
severe personal injury. Take care in following these
recommended procedures. All local, state and federal codes
should be consulted and complied with.
GENERAL
•Provide appropriate fire extinguishers and install in
convenient locations. Use an extinguisher rated ABC by
NFPA.
•Make sure that all fasteners on the engine are secure
and accurately torqued. Keep guards in position over fans,
driving belts, etc.
•If it is necessary to make adjustments while the engine
is running, use extreme caution when close to hot
exhausts, moving parts, etc.
•Used engine oils have been identified by some state or
federal agencies as causing cancer or reproductive
toxicity. When checking or changing engine oil, take care
not to ingest, breathe the fumes, or contact used oil.
•Do not work on this equipment when mentally or
physically fatigued, or after consuming any alcohol or
drug that makes the operation of equipment unsafe.
BATTERIES
•Before starting work on the engine, disconnect batteries
to prevent inadvertent starting of the engine.
•DO NOT SMOKE while servicing batteries. Lead acid
batteries give off a highly explosive hydrogen gas which
can be ignited by flame, electrical arcing or by smoking.
•Verify battery polarity before connecting battery cables.
Connect negative cable last.
CAUTION
!
WARNING
!
DANGER
!
•Dizziness
•Headache
•Weakness and Sleepiness
•Throbbing in Temples
•Vomiting
•Muscular Twitching
If you experience any of these symptoms, get out into fresh
air immediately, shut down the unit and do not use it until it
has been inspected.
The best protection against carbon monoxide inhalation is
proper installation and regular, frequent inspections of the
complete exhaust system. If you notice a change in the
sound or appearance of exhaust system, shut the unit down
immediately and have it inspected and repaired at once by
a competent mechanic.
KEEP THE UNIT AND SURROUNDING AREA CLEAN
•Make sure that oily rags are not left on or near the engine.
•Remove all unnecessary grease and oil from the unit.
Accumulated grease and oil can cause overheating and
subsequent engine damage and present a potential fire
hazard.

3
SAFETY INFORMATION
Accidental Starts!
Before servicing the engine or
equipment, always disconnect
the spark plug lead to prevent
the engine from starting accidently.
Ground the lead to prevent sparks that
could cause fires.
On engines equipped with a 12-volt
battery and/or electric start, disconnect
the battery cables from the battery.
Always disconnect the negative (-) cable
first.
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
fuel vapors are present.
WARNING: Over-speed is
Hazardous!
Never tamper with the govenor
components or settings to increase the
maximum speed. Severe personal injury
and damage to the engine or equipment
can result if operated at speed above
maximum ratings.
Explosive Fuel
LPG is extremely flammable and is
heavier than air and tends to settle in
low areas where a spark or flame could
ignite the gas. Do not start or operate
this engine in a poorly ventilated area
where leaking gas could accumulate
and endanger the safety of persons in
the area.
To insure personal safety, installation
and repair of LPG fuel supply systems
must be performed only by qualified LPG
system technicians. Improperly installed
and maintained LPG equipment could
cause fuel supply system or other
components to malfunction, causing gas
leaks.
Observe federal, state and local laws
governing LPG fuel and systems.
CAUTION: High Voltage!
Never touch electrical wires or
components while the engine is running.
They can be sources of electrical shock
which could cause severe injury or
burns.
!
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.
For Your Safety!
These safety precautions should be followed at all times. Failure to follow these safety precautions could result in
injury to yourself and others.
!

4
Lethal Exhaust Gases!
Engine exhaust gases contain
poisonous carbon monoxide. Carbon
monoxide is odorless, colorless, and
can cause death if inhaled. Avoid
inhaling exhaust fumes, and never run
the engine in a closed building or
confined area.
Rotating Parts!
Keep hands, feet, hair, and clothing
away from all moving parts to prevent
injury. Never operate the engine with
covers, shrouds, or guards removed.
Hot Parts!
The crankcase, cylinder head, exhaust
system, and other components can
get extremely hot from operation. To
prevent severe burns, do not touch
these areas while the engine is running
- or immediately after it is turned off.
Never operate the engine with heat
shields or guards removed.
SAFETY INFORMATION CONTINUED

5
ENGINE SET-UP
Refer to Engine Owners Manual for the crankcase oil
capacity.
Single-grade oil is preferable when temperatures are
consistently -over 30°F (0°C). Multigrade oils are best when
wide temperature variations are anticipated.
Crankcase pressure can blow out hot
oil, that can cause severe personal injury. Do not check
the oil level while the engine is running.
Excess oil can cause high oil
consumption, high operating temperatures, and oil
foaming. Do not overfill the crankcase.
WARNING
!
CAUTION
!
PRE-START CHECKS
Inspect the engine visually. Check for loose or missing parts
and any damage that may have occurred in shipment.
Starting the engine without oil will
result in severe engine damage. Add oil prior to starting
the engine.
CRANKCASE OIL RECOMMENDATIONS
Use premium quality motor oil with the API (American
Petroleum Institute) designation SG on the container. Figure
1 shows the recommended oil weight for the temperature
range that the engine will be operated in. Make sure the
engine oil weight is correct for the expected temperature
range.
CAUTION
!
TABLE 1 FIGURE 1

6
PROPANE BURNISHER SET-UP
STARTING AND OPERATION PROCEDURE
CAUTION: NEVER ALLOW MACHINE TO RUN FOR MORE THAN
10 SECONDS IN ONE SPOT OR DAMAGE WILL OCCUR TO
THE FLOOR!
1. Check oil and fuel levels. Make sure oil and propane tank
is not overfilled.
2. Check and clean recoil dust filter and carburetor filter.
Make sure air filter is free of dust and debris. Never run
buffer for more than 1 hour without cleaning air filter.
Change filters when necessary.
3. Check pad and pad assembly, to make sure pad is
centered and clean, and look for any problems with pad
driver. To do this turn machine over on its right side.
4. Check belt tension, again turn machine over on its right
side and squeeze belt together. Belt should depress
between 1/4 and 1/2 inch. To change see maintenance
instructions. (Page 13)
5. Open propane service valve, turn counter-clockwise to
open.
6. Tilt machine backward with pad off the floor, move throttle
to SLOW/IDLE position. Never start machine with pad on
the floor.
7. With Battery start machine, turn the key-switch to the start
position for approximately 5 seconds. If machine fails to
start, return ignition switch to the run position, do not turn
off. Allow approximately 30 seconds between tries, never
engage starter more than 10 seconds at a time.
a. Never start buffer with pad on the floor, this will
cause the starter to burn out prematurely!
b. Never use starting fluids or any other forms of
flammable substance to assist the engine in
starting!
8. Allow engine to warm up and run at normal operating
speed before engaging pad with floor. Make sure pad is
off the floor before engaging the clutch. Once machine is
at normal operating speed and clutch is engaged, start
walking and slowly lower the machine to the floor and
begin burnishing the floor. NOTE: Catalytic mufflers work
more efficiently when they are hot, emissions may be
higher when muffler is cold. Direct drive machines have
no clutch. Pad is moving when engine starts. Once
engine starts you are ready to burnish.
9. Machines with mechanical clutches: NOTE: Never engage
clutch with pad on floor. Once machine has reached
normal operating speed clutch is engaged automatically
at 2400 engine RPM and start burnishing. Start burnishing
when pad has reached top speed.
10. Always burnish on the right hand, so exhaust fumes are
blown to the inside of the aisle. Be careful exhaust fumes
and muffler are extremely hot and will damage
merchandise. NOTE: Do not expose skin to muffler or
manifold - extreme heat, will burn.
11. For normal stops of the machine, turn propane service
valve clockwise, to starve the engine of its fuel. Do not
stop machine by using the throttle or ignition key, you can
trap fuel in the lines, which can cause a backfire and cause
damage to the engine. NOTE: In case of emergency
always turn ignition key off. NOTE: Machines without
clutch, the pad starts to rotate immediately when engine
starts. Pad stops rotating when engine is off! No clutch!
CHECK OIL
Refer to engine manual for the type of oil, and instructions for
checking oil. It is important to note engine manufacturers differ
in the way oil is checked. Add oil if needed. Refer to Page 12.
HANDLE ADJUSTMENT
Adjust handle by loosening wing nuts on each side of handle.
Rotate handle to desired position and reinstall wing nuts.
PROPANE TANK INSTALLATION
Buffer is supplied with 20 lb., 5 gallon capacity D.O.T. and U.L.
listed tank. DO NOT OVERFILL. Overfilling will cause regulator
to freeze. This could cause damage to your equipment. Hold
tank in place by clamping the toggle assembly to the tank
band around the tank. Adjustments to the toggle assembly are
made by screwing toggle in or out on the toggle clamp. Connect
fuel hose to the tank valve by turning coupling to the right
(clockwise). Hand tighten only, making sure not to cross thread
the coupling.
REMOVING TANK
To loosen turn coupling to the left (counter clockwise). Undo
the tank strap, remove tank and store in approved area. Do not
store tank with machine in the janitor’s closet.
CONNECTING THE BATTERY (for battery start machines only)
Connect the RED positive cable first, then connect the black
negative cable last.
INSTALLATION/CHANGING PAD
1. With engine off, turn the machine over on the operator’s
RIGHT side (starter side) for the Briggs & Stratton models.
This can be easily done by pushing down on the right side
of the handle with some force while the machine is tilted
back.
2. Remove the center cup retainer and carefully pull old pad
off the pad driver assembly.
3. Inspect the pad holder for cracks or damage. Replace if
necessary. NOTE: A DAMAGED PAD HOLDER ROTATING
AT HIGH SPEEDS MAY BE AN EXTREME HAZARD IF IT
SHOULD COME APART.
4. Pull center from new pad, enter pad on pad holder and
secure with center cup retainer.
5. Press pad on to the pad driver assembly making sure
pad fits inside the lip of the pad driver assembly, to prevent
pad from elongating, attach center cup retainer.
6. Return machine to the upright position.
TRANSPORTATION
When transporting a propane powered floor machine with the
fuel cylinder attached, the cylinder should be securely fastened
with service valve closed and coupling not attached. The
machine should be secured to the vehicle to avoid movement.
Tanks separate from the machine should be secured to avoid
movement. NEVER STORE MACHINES WITH TANKS IN AN
ENCLOSED VAN OR TRAILER. ALWAYS CHECK TANKS FOR
OVERFILL BEFORE TRANSPORTATION.

7
OPERATION INFORMATION
Engine break-in as a result of proper care during the first
hours of operation of a new or rebuilt engine results in the
ideal fitting of all internal moving metal parts, which is
essential for top engine performance. For controlled engine
break-in.
1. Operate the equipment as it is intended to be operated.
However, for the first 3 hours, if possible, operate the
equipment at about half the available engine power,
occasionally operating at full engine power for brief
periods. Also, if possible, avoid prolonged low-speed,
low-power operation during engine break-in.
2. Proper engine oil is especially critical during break-in
because of the higher engine temperatures that can be
expected. See RECOMMENDED ENGINE OIL.
Change the oil if it is not appropriate for the ambient
temperatures during the break-in periods. See Table 1,
Figure 1 Page 6.
3. Check the oil level twice a day or after every 4 hours of
operation during the first 24 hours of operation.
4. Change the oil and oil filter after the first 5 hours of
operation.
OPERATION IN DUSTY CONDITIONS
1. Keep the engine cooling fins and flywheel air inlet screen
and precleaner (filter) clean.
2. Perform air cleaner maintenance more often than
normal - as required.
3. Change the engine oil and oil filter more often than
normal. See Table 2, Page 10.
OPERATION IN HOT WEATHER
Pay particular attention to the following items when
operating the engine in temperatures above 100°F (38°C):
1. Keep the engine cooling fins and flywheel air inlet screen
and precleaner (filter) clean: See to it that nothing
obstructs air flow to and from the engine.
2. Check the oil level more frequently.
3. Change the oil and oil filter more often than normal.
See Table 2, Page 10.
4. Make sure the engine oil viscosity is appropriate for
the ambient temperature and change the oil if
necessary. See Table 1, Figure 1 page 6.
OPERATION IN COLD WEATHER
Pay particular attention to the following items when
operating the engine in temperatures below freezing.
Make sure the engine oil viscosity is appropriate for the
ambient temperatures and change the oil if necessary. See
Table 1. If the temperature drops before you have the chance
to change the oil, warm up the engine by moving the
equipment into a heated space before attempting to start
the engine or change oil.
After engine has reached operating temperature while pad
is still off the floor. Before lowering burnishing head, adjust
throttle to operating speed. After slowly lowering machine
to floor, place hands lightly on the handle and allow the
machine to create the floor pressure. Bearing down and
pushing hard will lead to premature belt problems and
operator fatigue. For smoother turns and greater
maneuverability, buff aisles from the right side first.
CAUTION: DO NOT RUN MACHINE FOR MORE THAN 15
SECONDS IN ONE SPOT OR BURNING WILL OCCUR.
IDLING AND STOPPING THE MACHINE
If for any reason the machine needs to be idled for short
periods, simply tilt machine back on its rear caster and
shift throttle back (toward operator) into Idle Position.
Machine will now idle safely. (CAUTION: DO NOT IDLE
BUFFER ON REAR CASTER FOR MORE THAN TWO
MINUTES. This will raise the emissions level.)
To stop machine tilt back on rear caster, turn valve on
propane tank off, and allow fuel in the lines to be used up.
FOR EMERGENCY SHUT OFF ONLY. Battery start models:
turn off ignition switch. Electric start models: use emergency
stop switch on right side of control panel.
STORAGE
Only authorized and properly trained personnel should have
access to propane tanks and machine.
Making sure tank valve is closed, remove tank from buffer.
Local Fire Codes may require storing tank in separate
location. We recommend this, as well as following
Local Fire Codes.
Store machine and tank away from objects that may fall
and damage them.
Never store tank or buffer near open flame or heat producing
devices.
Make sure machine is cleaned properly before stored.
To prevent damage pad holder, the pad SHOULD remain on
machine during storage.
EMERGENCY STOP
Turn ignition key to OFF position.
Units with emission control device and clutch. Release bail
on handle to activate kill switch. (Model M220028KA).
IGNITION SWITCH
Battery models only. Do not cold crank for more than 10
seconds.
ENGINE BREAK-IN

8
MAINTENANCE SCHEDULE
Following the maintenance schedule and using the engine
properly will result in longer engine life, better performance
and safer operation. Perform each maintenance procedure
after the number of operating hours indicated. These service
intervals are recommended for normal operating conditions.
For operation in hot or dusty conditions, service the
enginemore frequently. Neglecting routine maintenance can
result in premature engine failure.
For any abnormalities in operation, unusual noises from
the engine or accessories, loss of power, overheating, etc.,
contact your nearest Engine Service Center.
Refer to the following Maintenance Procedures section for
routine maintenance procedures.
1 - Check for fuel leaks. With engine running, visually and audibly check exhaust system for leaks.
2 - Perform more often when running under severe operating conditions.
3 - Required for initial break-in only.
4 - Required for initial 100 hours, 200 hour interval thereafter. For detailed maintenance, refer to the Engine Service Manual.
Breathing exhaust gases can result in severe personal injury or death. Do not use air cleaner,
exhaust elbow, or connecting parts as a supporting step. Damage to these and connecting parts can cause an
exhaust leak.
WARNING
!
TABLE 2. PERIODIC MAINTENANCE SCHEDULE
AFTER EACH CYCLE OF INDICATED HOURS
SERVICE THESE ITEMS 1 8 25 50 100 200
Recoil Dust Filter
Inspect Engine Generally
Check Oil Level
Service Air Cleaner Element and Element Wrapper
Change Crankcase Oil
Replace Oil Filter (Onan, Kawaski Models)
Clean Cooling Fins
Clean Spark Arrester
Check Valve Clearance
Replace Air Cleaner Element
Check or Replace Spark Plug
X1
X
X
X2
X3
X3
X2
X
X4X
X2
X
X
X
PERIODIC MAINTENANCE SCHEDULE

9
Accidental starting of the engine can
result in severe personal injury or death. Disconnect
the 110 VAC power cord from the starter switch junction
box or disconnect the negative (-) battery cable on 12
VDC starter models. Also disconnect the spark plug
wire while servicing the engine, controls, or associated
equipment.
HOURLY CHECK
Due to the large amount of dust that can be encountered in
floor care applications, the recoil dust filter should be
checked after each hour of operation. Remove and clean
the filter.
DAILY CHECKS
The operator should make a complete visual and audible
inspection of the engine daily. Check the following before
starting the engine for the first time each day.
1. Check all fuel lines and fitting for possible leakage.
2. Check crankcase oil level with the engine off. If engine
has been run, allow a minimum of 10 minutes for the
oil to drain down before checking. Check oil level with
machine in operating position. Do not operate engine
with the oil level below the ADD mark or above the FULL
mark.
3. Inspect exhaust system for possible leakage and
cracks. Locate leaks in muffler and piping while the
engine is operating. Repair leaks immediately.
4. Inspect air cleaner system for leaks. Make certain all
clamps and fittings are tight and free of potential leaks.
5. Check the engine cooling system to make sure the
cooling fins and ducting area are clean. Remove dust,
dirt or oil from the cooling surfaces.
DAILY (8 HOUR) MAINTENANCE
The operator should check the following before the first
start of the day and after every eight hours of operation:
1. Inspect fuel lines and fittings for leaks. Repair leaks
immediately.
2. Look and listen for exhaust system leaks while the
engine is running. Look for cracks and severe rusting
in the muffler and tailpipe. Have all leaks repaired before
continuing to operate the equipment.
Hot exhaust parts can cause severe
burns. Allow the engine time to cool before
servicing the exhaust system.
3. Check the engine for dirt and debris and clean the
flywheel air inlet screen and cylinder cooling fins as
necessary. On floorcare equipment engines, remove
the cooling air precleaner element every 4 to 8 hours of
operation and wash it in warm water and mild detergent.
Rinse it thoroughly and let it dry before reusing it. Do
not oil the element.
A clogged flywheel air inlet precleaner
or screen or dirty cooling fins can cause overheating
and engine damage. Keep the cooling fins and air inlet
screen clean.
MAINTENANCE PROCEDURES
4. Check the engine oil level. The equipment must be
parked on a level surface and the engine stopped. To
get an accurate reading, wait a minute or so to allow
the oil to settle in the crankcase if the engine has been
running.
ENGINE MAINTENANCE
1. Cooling Fin Maintenance: Remove the blower housing
and other cooling shrouds. Clean the cooling fins as
necessary using compressed air or pressure washer.
Reinstall all housings and shrouds.
2. Head Bolt Maintenance: Refer to Engine Manufacturer’s
Service manual.
BELT MAINTENANCE
NOTE: To inspect the belt it is necessary to turn the machine
over. The machine should be turned to the operator’s right
side for all Briggs & Stratton models. If the belt is badly
cracked or worn, it should be replaced. To check for the
proper tightness, squeeze the belt together. The belt should
depress between 1/4 and 1/2 inch. To change belt follow
these instructions:
•Turn burnisher over on the right side.
•Remove the pad holder by holdng the end of the
shaft on the top of the machine with a 3/4 inch
wrench and turn the pad holder counter-clockwise.
•Using the 3/4 inch wrench to turn the end of the
spindle shaft on the top of the machine while
removing the old belt from the spindle pulley.
•Check engine pulley for correct alignment with the
spindle pulley. Check hardware attaching pulleys
for correct tightness.
•Install the new belt onto the engine pulley.
•Reinstall the new belt onto the spindle pulley using
the 3/4 inch wrench to turn the spindle clockwise.
Make sure the belt is correctly placed on the idler
pulley.
•Check belt for correct operation.
•Check all hardware for correct tightness.
WARNING
!
CAUTION
!
CAUTION
!
FUEL SYSTEM
The fuel system works from vacuum created by the engine
running. Turning the cylinder service valve on pressurizes
the system for flow to the carburetor once the engine starts
to crank.
1. Engine Dust Filter: FAILURE TO MAINTAIN A CLEAN
ENGINE FILTER MAY CAUSE THE EXHAUST
EMISSIONS TO ELEVATE TO DANGEROUS LEVELS.
ALSO, IT WILL CAUSE THE ENGINE TO OVERHEAT,
AND EVENTUALLY DAMAGE THE ENGINE. The
engine dust filter should be cleaned each hour and
after each use by shaking out the dust and then rinsing
with soapy water. Allow filter to air dry, do not wring
out water, this could damage the filter, (squeeze out).
2. Fuel System Adjustment:The carburetor and regulator
have been pre-set at the factory and do not require any
modification. Only authorized, trained personnel should
work on the fuel system of a propane buffer.

10
MAINTENANCE PROCEDURES
OIL FILL CAP AND DIPSTICK
NOTE: N.F.P.A. rule 58 8-1.4 states, “In the interest of
safety, each person engaged in installing, repairing,
filling, or otherwise servicing an LP-Gas engine fuel
system shall be properly trained in the necessary
procedures”.
3. Hose and Fuel Connections: Inspection: Check for gas
leaks by using a soapy water solution around all
connections with service valve turned on so the fuel
system is pressurized. Inspect all hoses for abrasions
and other signs of wear. Replace all damaged and worn
hoses. Fixing Leaking Joints: Uncouple bad joint, clean
joint and apply pipe sealing compound (use a Loctite
Pipe Sealant with Teflon or equivalent) to clean joint.
Re-couple the joint, tighten plus 1/2 turn. Recheck for
leaks.
4. Carburetor Air Filter: NOTE: Failure to service and clean
carburetor air cleaner may produce excessive carbon
monoxide emissions.
•Remove cover from the air cleaner.
•Remove foam pre-cleaner and use the same
procedure for cleaning the foam pre-cleaner.
•Rinse in mild detergent and squeeze out excess
water, do not wring out.
•Clean filter seal, making sure no dust is allowed
in the carburetor inlet.
•Inspect paper element. Replace if dirty, bent or
damaged.
•Install the clean paper element, pre-cleaner, and
attached air cleaner cover.
OIL CHANGE
Hot crankcase oil can cause burns if it
contacts the skin. Wear protective clothing and keep
fingers and hands clear when draining oil.
Used oil is harmful to the environment. Pour used oil into a
sealed container and deliver it to the nearest recycling
center or automotive service station.
CHANGING THE OIL
1. Run engine for 5 minutes to warm oil, then stop engine
by closing the service valve on the tank. Turn the key
to the off position (if battery start).
2. Locate the oil drain pipe located the right side of the
engine at its base. Remove the cap on the oil drain
tube by turning counter clockwise with a wrench.
3. Allow oil to drain completely into the receptacle.
4. Replace the cap by turning clockwise.
5. Remove oil fill cap. Always refer to the Engine Manual
for recommended oil and amount.
6. Check oil level with dip stick in oil fill cap. Add additional
oil if necessary. NOTE: TO CHECK OIL ON THE
BRIGGS & STRATTON MODELS, SCREW THE CAP
IN AND OUT AGAIN. ALWAYS MAKE SURE THE
MACHINE IS SITTING LEVEL WHEN CHECKING OIL.
Ref. to Page 14.
7. Replace fill cap. Hand tighten only.
CAUTION
!
If the oil level is low, add API Class SG or SH oil (also SG/
CD, SG/CE, SH/CD or SH/CE) having an SAE viscosity
grade appropriate for the expected temperatures, as
indicated by Table 1.
DO NOT FILL TO A LEVEL ABOVE THE FULL MARK ON
THE DIPSTICK. Drain the excess oil if too much has been
added.
Too much oil can cause high oil
consumption, high operating temperatures and oil
foaming. Too little oil can cause severe engine damage.
Keep the oil level between the Full and Add marks on
the dipstick.
Reinstall the dipstick and cap after checking or adding oil,
turning it clockwise until it is secure.
WARNING
!

11
Table 3 provides basic troubleshooting guidance. If you fail to
resolve the problem after taking the corrective actions
suggested, contact the equipment or engine dealer.
Many troubleshooting procedures present
hazards that can result in severe personal injury or death.
Only qualified service personnel with knowledge of fuels,
electricity, and machinery hazards should perform service
procedures. Review Safety Precautions.
Hot engine parts can cause severe burns.
Always allow the engine time to cool before performing any
maintenance or service.
TABLE 3. TROUBLESHOOTING
Problem Corrective Action
1. The engine fails to crank a. Clean and tighten the positive (+) and negative (-) battery cable connections
at the battery and the engine if equipt.
b. Recharge the battery. Refer to the equipment or battery manufacturer’s
recommendations.
2. The engine cranks slowly. a. Clean and tighten the positive (+) and negative (-) battery cable
connections at the battery and the engine if equipt.
c. Recharge the battery. Refer to the equipment or battery manufacturer’s
recommendations.
c. Change engine oil to oil having the proper viscosity for the ambient
temperature. See Table 1.
3. The engine cranks but fails a. Check the fuel tank or LPG container and fill as necessary.
to start. b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Open any closed fuel shut-off valve.
d. Check engine oil level and add oil as necessary.
e. Service the air cleaner.
f. Clean the air precleaner (floorcare engines).
g. Replace the spark plugs.
4. The engine runs and a. Check the fuel tank or LPG container and fill as necessary. On cold days
then stops. the LPG container may have to be kept at least half full to provide the rate
of vaporization necessary to keep up with the engine fuel demand.
b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Check the engine oil level and add oil as necessary. Drain excess oil if the
level is above the dipstick FULL mark.
5. The engine exhausts a. Service the air cleaner.
black smoke.
6. The engine misfires. a. Replace the spark plugs.
TROUBLESHOOTING
WARNING
!
WARNING
!

12
ENGINE WILL NOT START
CAUSES:
No fuel, blown head gasket, ignition coil, dirty air cleaner,
wires broken or disonnected, engine overload, insufficient
vacuum, bag spark plug, fuel system out of adjustment.
SOLUTION:
Refer to engine manual for servicing and instruction.
HARD TO START
CAUSES:
Dirty fuel line, dirty air filter, bad spark plug, blown head
gasket, low oil, engine overload, carburetor needs
adjustment, regulator needs adjustment, insufficient
vacuum, timing, coil or valves need adjusting.
SOLUTION: Refer to engine manual for servicing and
instruction.
ENGINE LACKS POWER
CAUSES:
Head gasket leaks, governor needs adjustment, check air
filter, insufficient vacuum, bad spark plug, no compression
worn rings, improper valve clearance, fuel line dirty, improper
oil level.
SOLUTION:
Refer to engine manual for servicing and instruction.
SMELL OF BURNED RUBBER
CAUSE:
Belt out of adjustment.
SOLUTION:
Refer to Maintenance Procedures.
EXCESS VIBRATION
CAUSE:
Engine overload, loose bolts on engine or deck of unit, no
fuel or dirt in fuel, dirty air filters, faulty spark plug, pad not
centered.
SOLUTION:
Refer to engine manual for servicing and instruction.
MACHINE PULLS TO ONE SIDE
CAUSE:
Bent wheel bracket, wheel is wearing too much on one
side.
SOLUTION:
Check for bent bracket or worn wheel.
MACHINE “BOGS DOWN” WHEN IN USE
CAUSE:
Too much pressure or operator is bearing down too hard.
Dirty air filters.
SOLUTION:
Follow proper operating instructions, let machine operate
on its own weight, do not apply upward pressure to handle
of machine.
ENGINE STOPS RUNNING
CAUSE:
Out of fuel, faulty spark plug, low oil, dirty air filters, high
exhaust emissions.
SOLUTIONS:
Refer to engine manual for servicing and instruction.
HIGH FUEL CONSUMPTION
CAUSE:
Dirty air filters, dirty air cleaners.
SOLUTION:
Keep engine and air filters clean.
TROUBLE SHOOTING

13
ENGINE 16HP KAWASAKI

14
Item Part No. Qty. Description
1 360108 1 Handle Sleeve
2 711430 1 Nut, Tinnerman (M220028KA)
3 740029 1 Switch (M220028KA)
4 711104 6 SCR-ST-A 10 x .50
5 220116 1 Switch Box (M220028KA)
6 710207 2 SCR-MC 6-32 x .87 (M220028KA)
7 712638 2 Nut-Hex 10-24 Nyloc
8 83-25-B-36 1 Throttle Cable Assy.
9 711503 14 WSR-Flat #10
10 515-10-24 2 SCR-RD HD 10-24 x 1 1/2
11 712099PLT 2 BLT-SHLDR 1/2 x 1/2
12 260287 2 Wing Bolt 1/2-13
13 711353 2 Nut-Acorn 5/16-18
14 711545 2 WSR-Helical 5/16
15 220036 1 Pivot Bracket - Left
16 81-166-A 2 Special Washer
17 710200 2 SCR-FH 5/16-18 x .375
18 741056 1 Keyswitch w/Ground
19 220131 1 Buckle TB2-61
20 220393 1 Battery Cover Weldment
21 713007 4 BLT-HH 1/4-20 x 2.00
22 711505 16 WSR-Flat 1/4
23 220056 3 Felt 2 x 10
24 956725 1 Battery 12V
25 711377 8 Nut-Nyloc 1/4-20
26 713000 4 BLT-HH 1/4-20 x 1/2 #5
27 711544 6 WSR-Helical 1/4
28 220117 1 Propane Tank Polished
29 711354 1 Nut-Acorn 3/8-16
30 711507 8 WSR-Flat .37 x 1.12 x .06
31 711380 6 Nut-Nyloc 3/8-16
32 430029 1 Caster
33 713168 8 SCR-FH SC 5/16-18 x 1.25
34 711374 8 Nut-Nyloc 5/16
35 220053 2 Wheel Bracket Weldment
36 220049 2 Bushing .381 x .5 x 1.75
37 430138-1 2 Wheel 6” w/Ballbearing
38 713049 2 BLT-HH 3/8-16 x 2.75
39 220182 1 Spacer
40 220185 1 Clutch
41 713007 4 BLT-HH 1/4-20 x 2.00
42 220181 1 Key 1/4 x 1/4 x 2.69
43 82-138-B-3 1 Special Washer
44 350242 1 Belleville Washer 7/16
45 60-716-24 1 BLT-HH 7/16-20 x 1.5
46 712112 1 BLT-HH 1/2-13 x 2.75
47 220040 1 Rotary Tensioner
48 77-81-A 1 Spacer
49 220041 1 Belt Idler w/Bushing
50 711334 1 Nut-Hex 1/2-13
51 220010 1 Belt Tensioner Assy.
52 220097 1 V Belt BX44T (M220024KA)
52A 220180 1 V Belt BX50T (M220028KA)
53 220019 6 Gimbal Spacer Disc
54 711506 12 WSR-Flat 5/16
55 760401 1 Center Cup
56 760402 1 Center Cup Retainer
57 220051 1 Metal Spinning (M220024KA)
57A 220061 1 Metal Spinning (M220028KA)
58 220020 12 BLT-Special Elevator
59 220018 1 Gimbal Disc
60 220022 1 Adapter
61 220152 1 Pad Driver Assy. (M220024KA)
61A 220153 1 Pad Driver Assy. (M220028KA)
62 220045 1 Split Tapered Bushing
63 220044 1 Pulley (M220024KA)
63A 220179 1 Pulley (M220028KA)
64 711719 2 Retaining Ring - Ext. 1.00
65 220003 1 Key-Woodruff 5/16 x 1
66 220002 1 Drive Shaft
Item Part No. Qty. Description
67 762093 2 Bearing
68 220023MCH 1 Bearing Housing
69 220026 1 Pulley Assy. (M220024KA)
69A 220178 1 Pulley Assy. (M220028KA)
70 220120 1 Skirt (M220024KA)
70A 220062 1 Skirt (M220028KA)
71 220121 1 Skirt Retainer (M220024KA)
71A 220122 1 Skirt Retainer (M220028KA)
72 828893 12 Pop Rivet
73 715385 1 Decal - Minuteman
74 220024PTD 1 Casting (M220024KA)
74A 220028PTD 1 Casting (M220028KA)
75 220156 1 Muffler (M220024KA)
75A 220186 1 Muffler (M220028KA)
76 220188 1 Heat Shield (M220024KA)
76A 220189 1 Heat Shield (M220028KA)
77 220210 1 Muffler Bracket (M220024KA)
77A 220195 1 Muffler Bracket (M220028KA)
78 220099 1 Muffler Clamp
79 741081-1 1 Oxygen Sensor Assy.
80 711509 5 WSR-Flat 1/2
81 711547 5 WSR-Helical 1/2
82 713071 5 BLT-HH 1/2-13 x 1 1/2
83 220174 1 Hose Barb 3/8 x 1/4 MPT
84 220154 1 Propane Kit
85 220162 1 Exhaust Manifold
86 220386 1 Finger Guard Weldment
87 220150 1 Engine 16 HP Kawasaki
88 220084 1 Foam Filter
89 220211 1 Filter Cover
90 220169 1 Fuel Hose 3/8 ID x 18”
91 220388 1 Tee Union
92 220170 1 Fuel Hose 3/8 ID x 4”
93 220389 1 Air Bleed Hose
94 220171 1 Hose Barb 1/4 x 1/8 MPT
95 741083 1 Air Solenoid
96 220172 1 Hose Barb 1/4 x 1/8 MPT
97 220165 1 Hose Barb Assy.
98 450076 4 Crimp Clamp
99 62-252-A 1 Connector - Female
100 341201 1 High Pressure Hose
101 80-113-A 1 90°Male El Flared
102 220103 1 Electric Lockoff Assy.
103 220101 1 Regulator
104 741084 1 Air Filter Assy.
105 220176 1 Regulator Bracket
106 711203 2 BLT-HH 1/4-20 x .62
107 711542 2 WSR-Helical #8
108 710329 2 SCR-MC 8-32 x .50
109 220147 1 Tank Frame Weldment
110 741080 1 Emissions Control Unit
111 711350 6 Nut-Hex 10-32 Nyloc
112 741300 1 Terminal Block
113 713043 4 BLT-HH 3/8-16 x 1 1/4 #5
114 715501 1 Decal - Made in USA
115 741082 1 Led Assy.
116 711449 1 Pushnut - 5/16
117 715245 1 Decal - Ignition Switch
118 715192 1 Decal - Dashboard
119 741007 1 Hour Meter
120 715242 1 Decal - Propane Warning
121 220212 2 Key - Ignition Replacement
122 220037 1 Pivot Bracket - Right
123 220137 1 Bail Stop (M220028KA)
124 829052 2 Nylon Bushing (M220028KA)
125 711721 2 Retaining Ring (M220028KA)
126 220112 1 Torsion Spring (M220028KA)
127 220025 1 Handle Tube Weldment
128 220115 1 Switch Bail (M220028KA)
129 715343 1 Decal, Propane Warning
PARTS LIST for 16 HP KAWASAKI

15
ENGINE 17HP AIR COOLED KAWASAKI

16
PARTS LIST FOR ENGINE 17HP AIR COOLED KAWASAKI

17
ENGINE 14 HP ONAN