BETCO PB21-11 User manual

PB24-13
13hp Honda
PB21-11
11hp Honda
PB21-13
13hp Honda
PB24-11
11hp Honda
Operator's Manual
Parts Schematic
Propane Powerered Floor Burnishers
© 2007 Betco Corporation. All Rights Reserved. 1001 Brown Avenue · Toledo Ohio 43607-0127· 888-GO-BETCO · www.betco.com

TABLE OF CONTENTS
COVER PAGE 1
LEFT BLANK INTENTIONALLY 2
TABLE OF CONTENTS 3
WARNING - CARBON MONOXIDE 4
CARBON MONOXIDE - SYMPTOMS AND DETECTORS 5
SAFETY INSTRUCTIONS 6 - 7
TANK USE AND STORAGE 8
BEFORE STARTING THE MACHINE 9
STARTING AND STOPPING THE ENGINE 10
BELT TENSIONING INSTRUCTIONS 11
PAD CHANGING INSTRUCTIONS 12
ENGINE MAINTENANCE 13
DECK, WHEELS, AND MORE - PARTS 14 - 15
HANDLE - PARTS 16 - 17
FLEX LOK PAD DRIVER ASSEMBLY - PARTS 18
CENTRIFUGAL CLUTCH OPTION 19
FUEL SYSTEM - PARTS 20
ELECTRICAL SYSTEM - PARTS 21
TROUBLE SHOOTING 22
WARRANTY 23

WARNING
LETHAL EXHAUST GAS
NEVER RUN THE ENGINE
IN A CLOSED BUILDING
OR CONFINED AREA
Exhaust gases contain poisonous carbon
monoxide. Carbon monoxide is odorless,
colorless, and can cause death if inhaled.
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CARBON MONOXIDE - MUST READ THIS!
Carbon Monoxide Poisoning Symptoms
Train your employees to know the warning signs of carbon monoxide
poisoning.
Mild carbon monoxide poisoning may cause any of the following:
headache, drowsiness, faintness, poor coordination, nausea, and vomiting.
Turn the engine off and immediately get to fresh air if you have any of
these symptoms. Do not run the machine until it is given an emissions test and
repairs made by a Betco Corporation distributor.
Moderate or severe carbon monoxide poisoning causes confusion, unconsciousness,
chest pain, shortness of breath, and coma. Thus, most victims are not able to move
themselves and must be rescued. Severe poisoning is often fatal.
Carbon monoxide is dangerous because a person may not recognize drowsiness as a
symptom of poisoning. Consequently, someone with mild poisoning can go to sleep and
continue to breathe the carbon monoxide until severe poisoning or death occurs. Some
people with long-standing, mild carbon monoxide poisoning caused by furnaces or
heaters may mistake their symptoms for other conditions, such as the flu or other viral
infections.
Carbon Monoxide Detectors
CO detectors are a must for safe operation of your equipment. Various types are
available. A “CO” carbon monoxide detector detects carbon monoxide before it reaches
dangerous levels. Detectors are a must for those who run propane powered equipment.
The CO Detector is for everyone’s protection against Carbon Monoxide Poisoning.
xCarbon Monoxide Detector - Passive
oEffective for 30 days after package has been opened.
oWrite the date opened on the detector.
oMount with self-adhesive strip on the machine handle.
oTrain machine operator to check detector regularly.
oIf the orange disk on the detector changes to gray or black - your Carbon
Monoxide Levels are at a Dangerous Level.
oIf the orange disk changes to gray or black you must turn your buffer off
immediately and return it to your nearest authorized Betco Corporation.
distributor for an emissions test.
oDo Not Restart the machine until the emissions have been checked and
corrected.
oThis is for your protection as well as your customers. CO detectors are a
must for safe operation and maximum efficiency of your equipment.
oFor replacement CO detectors, contact your Betco Corporation distributor.
Ask for the carbon monoxide detector, part E012426.
xCarbon Monoxide Detector - battery operated with alarm
oAvailable from various sources.
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SAFETY
lmportant Safety Information
All LPG (Liquid Propane Gas) powered engines, including this engine,
produce Carbon Monoxide (CO). It is a LETHAL POISON that is colorless,
odorless, tasteless, and non-irritating gas. You must read “Danger: Lethal
Exhaust Gas” information below.
Keep hands, feet, and loose clothing away from all moving parts while the
machine is in operation. The exhaust system gets very hot so keep hands,
clothing and any items that can burn away from the engine, engine manifold, and
muffler.
Betco machines are built tough and durable, however do not abuse the
machine. With proper care and maintenance this unit will give you years of
trouble free operation.
Danger: Lethal Exhaust Gases
Engine exhaust gases contain poisonous carbon monoxide. Carbon
monoxide is odorless, colorless, tasteless, and can cause death if inhaled.
Failure to provide proper venting of CO, failure to properly maintain the
engine, or failure to properly train personnel of the dangers and warning signs of
carbon monoxide exposure may result in SERIOUS INJURY OR DEATH to the
operator and others in the area.
xAny equipment with the potential to produce carbon monoxide presents a
significant hazard when used indoors. They must be used with great caution.
Opening a door or window, or running an exhaust fan will not necessarily
supply adequate ventilation. Avoid inhaling exhaust fumes and never run the
engine in a closed building or confined area without proper ventilation.
xDo not allow engine to run unattended.
xIf you have any indication that the engine is not running properly, immediately
shut the machine off and have it checked over and repaired by qualified
maintenance personnel.
xWorkers should be trained to recognize the hazards of carbon monoxide and
the early symptoms of carbon-monoxide poisoning.
xA carbon-monoxide detector and alarm should be available to alert workers of
emissions.
xHave a carbon monoxide detector attached to machine handle or have
machine operator wear a carbon monoxide detector. (See carbon monoxide
detector page).
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SAFETY
continued from previous page
xUse only as described in this manual.
xUse only manufacturer’s recommended components.
xMaintenance and repairs must be done by qualified personnel.
xOnly trained operators should be allowed to operate propane powered floor
machines.
xIf the machine is not working properly, have it serviced by an authorized
service center.
xInstall fuel cylinder in a well ventilated place.
xBe aware of possible leaks of propane gas if odor is present.
xIf the machine is stored inside a building, remove the fuel cylinder and store
properly outside.
xSecure fuel cylinders when being transported.
xIf tank is left attached to the machine then valve should be OFF.
xNever store fuel cylinders in a vehicle, building, or area where they may
exposed to high temperature.
xDo not operate the machine with any openings blocked.
xKeep openings free of debris that may reduce airflow.
xRemove fuel cylinder and disconnect battery before servicing.
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TANK USE AND STORAGE
We use the Worthington gas cylinders designed for vapor
withdrawal. The fuel lock offs, regulators, and engines are also designed
for vapor withdrawal.
xUse the OPD (Overflow Protection Device) vapor withdrawal type
cylinder. These style tanks have a triangle shaped valve handle.
xDo not overfill - the best gauge is a scale - never allow tank to weigh
over 36 pounds for an aluminum tank and 43 pounds for a steel tank.
xStore tanks outside in a well-ventilated area.
xNever store fuel cylinders in a vehicle, building, or area where they
may exposed to high temperature.
xIf the machine is stored inside a building, remove the fuel cylinder and
store properly outside.
xConnect fuel cylinder to machine in a well ventilated place.
xBe aware of possible leaks of propane gas if odor is present.
xSecure fuel cylinders when being transported.
xIf tank is left attached to the machine then valve should be OFF.
xStore tanks in the upright position (valves up).
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BEFORE STARTING THE MACHINE
Before the machine is operated, you first should read your Engine Operation Manual and your
Owner’s Manual.
xYour machine is shipped ready operation; however there is no fuel in the tank. When having
the tank filled, you must make sure the tank is never over filled.
oThe best way to do this is to tell the filling station to weigh the tank full. On an aluminum
tank, it should weigh no more than 36 pounds and on a steel tank no more than 43
pounds. (See more information at “Tank Storage and Maintenance” page.)
xAdjust the handle for comfortable operation. Remove hairpin cotter pins from clevis pins,
remove pins, and adjust to the hole alignment that gives the most comfortable height.
Replace clevis pins and hairpin cotter pins. Tighten nuts and bolts if needed.
xMake sure pad is not torn, pad is well attached and centering device is tightened.
xCheck Oil Level: Starting the engine without the proper amount of oil will cause severe
engine damage. Always keep the engine oil level between the full and add marks on the
dipstick. Do not loosen oil fill cap or remove dipstick while engine is running.
oPark your burnisher on a level surface.
oTurn the oil fill cap counter clockwise and then lift from the fill tube.
oWipe the dip stick clean and push it back into the oil fill tube until the cap seats and then
withdraw it to check: the oil level. (Do not screw cap on to check oil). Add if necessary. If
the oil level is low, add API Class SM oil having a SAE viscosity grade appropriate for
the expected temperatures as indicated in the Operators Manual (Usually a HD30 or
10W30).
oImportant Note: DO NOT OVERFILL
oReplace oil cap.
xInspect fuel hoses and fittings for wear and leaks. Have all worn hoses and leaks repaired
before operating..
xLook and listen for exhaust leaks. Have all leaks repaired before operating.
xCheck the carburetor filter and air filter for debris. Clean and replace if necessary.
xConnect fuel hose to tank by screwing the hose fitting to tank. You must tighten all the way
down to make fuel connection. Turn tank knob slowly until you hear the flow of fuel into fuel
system.
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STARTING AND STOPPING
THE HONDA ENGINE
STARTING THE HONDA ENGINE
The Honda engine is equipped with a 110 volt AC starter.
1) Install tank.
2) Attach propane hose coupling and fully tighten.
3) Tilt machine back so that pad is off the floor.
4) Open propane tank valve (turn counterclockwise). Hose will fill.
Must not be any leaks.
5) Put throttle cable into the “fast” position.
6) Hook cord to starter connection and plug into wall outlet.
7) Push red start button and hold until the engine starts. Do not
crank for more than 20 seconds at a time and wait at least one
minute between tries when cranking. See troubleshooting guide if
the engine does not start after several tries.
8) After engine starts, unplug cord and return to storage position on
handle.
9) Set throttle to a slow operating speed until the motor warms up.
Can increase engine speed after 3 to 5 minutes.
STOPPING THE HONDA ENGINE
1) Turn propane tank valve to the closed position (turn clockwise)
and allow the engine to continue running until it runs out of fuel.
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