BETCO Big Bertha User manual

Big Bertha Propane Stripping Machine
Operators Manual
Parts Schematic
©Betco Corporation. All Rights Reserved  1001 Brown Avenue  P.O. Box 31 7  Toledo, Ohio 43607 01 7  800 777 9343  www.betco.com
Item #E12327-00

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TABLE OF CONTENTS
PAGE DESCRIPTION
3 Table of Contents
4, 5 Safety Instructions – Very Important – Must Read Both Pages
6 Specifications of the Extreme Vac
7 Features of the Extreme Vac
8 Battery Installation and Charging
9 Battery Maintenance
10 Vacuum Controls
11 Operating Procedures
12 Preventative Maintenance and Operating Tips
13 Squeegee Information and Adjustments
14 View - Rear View of Parts
15 View - Bottom View of Parts
16 View – Inside View of Parts
17 Parts List for the Previous Views
18 Squeegee Lift and Recovery Lid Flap Details
19 Batteries and Charger parts
20,21 Recovery Lid Assembly and Parts
22 Recovery Tank Assembly and Parts
23 Squeegee Mount Assembly and Parts
24,25 Squeegee Assembly and Parts for 34” Squeegee
26,27 Squeegee Assembly and Parts for 41” Squeegee
28 Electrical Components – Diagram of Parts and Connections
29 Vacuum Mount with Vacuum motor and other Electrical Parts
30 Electrical Schematic
31 Trouble Shooting
32 Extreme Vac Limited Warranty
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INTRODUCTION
Thank you for taking the time
to select the best
propane powered floor equipment
being manufactured today.
With the Extreme Strip, we offer the
“Best Built – Best Backed”
propane powered floor stripping
machine available.
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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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SAFETY
General Safety Information
Keep hands, feet, strings and ties 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
while hot.
PowerBuff machines are built tough and durable,
however do not abuse the machine and the machine won’t
abuse you. With proper care and maintenance this unit will
give you trouble free operations for the years to come.
Warning: Lethal Exhaust Gases
Engine exhaust gases contain poisonous carbon
monoxide. Carbon monoxide is odorless, colorless,
tasteless, and can cause death if inhaled. Avoid
inhaling exhaust fumes and never run the engine in a
closed building or confined area without proper
ventilation.
Although LPG burns more efficiently and emits
less carbon monoxide than gasoline, some carbon
monoxide is produced. Avoid inhaling exhaust gases -
especially over prolonged periods of time. Do not
allow engine to run unattended.
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CARBON MONOXIDE DETECTOR
The “CO” carbon monoxide detector detects carbon monoxide before
it reaches dangerous levels. This detector is a must for those who run
propane powered equipment in or around enclosed areas.
• The CO Detector is for everyone’s protection against Carbon
Monoxide Poisoning.
• Effective for 30 days after package has been opened
• Mount with self-adhesive strip on the side of machine handle or
locate it near the operator’s collar.
• If the orange disk on the detector changes to gray or black -
your Carbon Monoxide Levels are at a Dangerous Level. See
(1) & (2)
(1) If the orange disk changes to gray or black you must turn
your buffer off immediately and return it to your nearest
authorized PowerBuff Inc. distributor for an emissions test.
(2) Do Not Restart the machine until the emissions have been
checked and corrected.
This is for your protection as well as your customers. CO detectors
are a must for safe operation and maximum efficiency of your
equipment.
For replacement CO detectors, contact your PowerBuff Inc.
distributor. Ask for the carbon monoxide detector or part P1125.
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Tank Storage and Maintenance
We at PowerBuff Inc., use the Worthington gas
cylinders designed for vapor withdraw. The fuel lockoffs,
regulators, and engines are also designed for vapor
withdrawal. “Fuel freeze-ups” or “frozen regulators” are a
result of liquid propane being introduced into the system. To
prevent these “freeze-ups” from occurring follow this
important procedure:
(1) Do 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.
(2) Store tanks outside in a well-ventilated area.
(3) Store tanks in the upright position (valves up).
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INSTRUCTIONS
BEFORE STARTING THE MACHINE
Before any operation should begin, you first should read your Engine Operation
Manual and your Owner’s Manual.
Your machine is shipped ready for your operation, however there is no fuel in the
tank. When having the tank filled, you must make sure the tank is never over
filled.
The 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.
Adjustable Handle: Adjust the handle for comfortable operation. Use two 3/4”
wrenches and loosen handle. Adjust to comfortable height and re-tighten bolts to
40-50 ft/lbs.
• Check 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.
o Park your PB 17-V-Twin on a level surface.
o Turn the oil fill cap counter clockwise and then lift from the fill tube.
o Wipe 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 SG or SH
oil having a SAE viscosity grade appropriate for the expected
temperatures as indicated in the Operators Manual.
o Important Note: DO NOT OVERFILL
o Replace oil cap.
• Inspect fuel hoses and fittings for leaks. Repair leaks immediately.
• Look and listen for exhaust leaks. Have all leaks repaired before operating.
• Check the carburetor filter and air filter for debris. Clean and replace if
necessary.
• Connect 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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INSTRUCTIONS
STARTING THE ENGINE
The PB 17-V-Twin is equipped with a 12 volt starter and a key switch
start.
(1) Start the Extreme Strip machine with the brushes in the running
position, flat on the floor.
(2) Open propane tank valve (turn counterclockwise).
(3) Put throttle cable into the “slow” position.
Note: If starting is difficult, you can place throttle in the “fast”
position, and after the engine starts, back off to the slow
position before the centrifugal clutch engages.
(4) Turn the ignition - start switch to the “start” position and hold it
there 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.
(5) After engine starts, set throttle so that the centrifugal clutch will
not engage until the engine has warmed up. Do not operate
machine until the engine has warmed up sufficiently. ( 3 to 5
minutes )
STOPPING THE 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.
This can be done with the centrifugal engaged or not engaged.
* * *
2. Turn key to the off position.
***In an emergency, immediately turn
the key to the off position.
Backfiring may occur when using this method.
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INSTRUCTIONS
MACHINE OPERATION AND OTHER INSTRUCTIONS
Machine Operation:
• Prepare the floor as needed for the procedure that you are performing. Be
sure the Extreme Strip is suitable for the task you are planning to use it
for.
• Start the engine as instructed under “Starting the Engine” in the
“Instructions”.
• After the engine is warmed up, engage the centrifugal clutch by moving
the throttle to the run position.
• Push the machine at slow to medium walking speed. Be careful, the floor
is wet and therefore is slick.
• When you need to stop, move the throttle to the slow position, which will
disengage the centrifugal clutch. If you are going to be stopped for more
than a minute, then shut off the engine as directed under “Stopping the
Engine” in the “Instructions”.
• One pass should clean about anything that can be cleaned.
• Do not let the machine run in one place too long.
Transport:
Be careful. The Extreme Strip is very heavy machine.
• A lift gate or ramp is recommended for loading and unloading.
• It can be rolled by tilting back, so that it is balanced on it’s wheels. It may
take two people to tilt it back.
Maintenance:
• To change brushes, lay the machine on it’s side. See the “Brush
Replacement and Belt Tightening” page for more details.
• To tighten belts see the “Brush Replacement and Belt Tightening” page
and other pages for more details.
• Important note: The machine will not stay in the tilted back position, unless
the brush assembly is removed.
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PERIODIC MAINTENANCE
PLEASE REFER TO ENGINE OWNERS MANUAL
FOR MORE INFORMATION
DAILY EVERY
25
HOURS
EVERY
50
HOURS
EVERY
100
HOURS
EVERY
200
HOURS
•Check engine oil level and add if needed
•Check and clean engine bonnet filter
(replacement is P2304)
•General check for loose or lost nuts and
screws, oil leakage, etc...
*
*
*
•Clean air cleaner foam element
•Clean air cleaner paper element
•Check belt tensions
•Check battery electrolyte level
*
*
*
*
•Change engine oil (1) *
•Change oil filter (1)
•Clean dust and dirt from cylinder and
cylinder head cooling fins
•Tighten nuts and screws
•Clean and regap sparkplugs
*
*
*
*
•Replace air cleaner paper element
(F11013-7006)
•Replace air cleaner foam element
(F11013-7001)
•Replace spark plugs
(F92070-7001)
•Check and adjust valve clearance
•Clean combustion chamber
•Clean and lap valve seating surface
*
*
*
*
*
*
IMPORTANT NOTES:
•(1) Change engine oil and filter after first 8 hours of operation
•PLEASE REFER TO ENGINE OWNERS MANUAL FOR MORE INFORMATION
MAINTENANCE SHOULD BE DONE
BY QUALIFIED PERSONNEL ONLY
ENGINE MAINTENANCE
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A B
SYMPTOM: MACHINE PULLS OR PUSHES IN AN UNUSUAL WAY.
NOTE THAT IT IS NATURAL FOR MACHINE TO PULL TO THE LEFT
TO SOME EXTENT. MUCH LIKE A REGULAR BUFFER.
POSSIBLE CAUSE: BRUSH PIVOT YOKE IS NOT LEVEL. THIS CAN BE
CHECKED BY MEASURING THE DISTANCE ON EACH SIDE OF THE
YOKE, SUCH AS AT POSITIONS A and B. IF YOKE IS NOT LEVEL,
PROCEED TO SOLUTION.
SOLUTION: LOOSEN THE BOLTS ON THE FLANGE BEARING AND LEVEL
THE YOKE. TIGHTEN BOLTS AND RECHECK LEVEL.
LEVELING BRUSH DRIVE
MAINTENANCE NOTES
SPACER WASHERS BELOW FLANGE BEARINGS (ABOUT 5 NEEDED)
CONTROL THE DISTANCE FROM TOP OF MOUNTING PLATE FOR
BRUSHES TO THE MACHINE FRAME. THEY ALSO CONTRIBUTE TO HOW
THE LARGE PULLEY LINES UP WITH THE TENSIONER AND CLUTCH PULLEYS.
SPACER WASHERS ABOVE FLANGE BEARINGS
(ABOUT 3 NEEDED) CONTROLS HOW THE LARGE PULLEY
LINES UP WITH THE TENSIONER AND CLUTCH PULLEYS.
USING THE SPACING WASHERS FOR
BRUSH MOUNTING PLATE/DECK SPACING AND PULLEY ALIGNMENT
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THERE ARE 3 SPACING WASHERS UNDER EACH OF THE 4 PULLEYS
(THE THREE 6" OUTER PULLEYS AND THE 4" CENTER PULLEY)
BETWEEN THE PULLEY SHAFT BUSHING AND THE BEARING HUB

BRUSH DRIVE
REMOVAL AND INSTALLATION
21
4
TO REMOVE BRUSH DRIVE
- REMOVE 4 BOLTS (ITEM 1) AND REMOVE FRONT ACCESS COVER (ITEM 2).
- LOOSEN TENSIONER BOLT (ITEM 3) TO RELIEVE CLUTCH BELT TENSION.
- REMOVE CLUTCH BELT (ITEM 6) FROM LARGE PULLEY (ITEM 7).
- REMOVE BOLTS (ITEM 4), 8 TOTAL, 4 EACH SIDE, WHICH WILL RELEASE
THE BRUSH PIVOT MOUNTING BLOCKS.
- THE ENTIRE BRUSH DRIVE CAN NOW BE REMOVED BY TILTING THE
MACHINE BACK.
TO INSTALL BRUSH DRIVE
- ALIGN BRUSH PIVOT YOKE (ITEM 8), SO THAT BRUSH PIVOT MOUNTING
BLOCKS (ITEM 9) ARE IN THE POSITION THEY WILL BE IN WHEN ATTACHED
TO THE MACHINE.
- IMPORTANT: BELT TENSIONER (ITEM 5) MUST BE TOWARD THE REAR OF
THE MACHINE, SO THAT IT DOES NOT HIT THE LARGE PULLEY OR THE PIVOT
YOKE, WHEN MACHINE IS LOWERED ONTO THE BRUSH DRIVE ASSEMBLY.
(SEE NOTE ABOVE AND PAGES 19 & 30 FOR POSITION).
- LOWER MACHINE ONTO THE BRUSH DRIVE, SO FRAME DROPS AROUND
THE BRUSH PIVOT MOUNTING BLOCKS (ITEM 9).
- REPLACE BOLTS (ITEM 4) THROUGH FRAME INTO THE BRUSH PIVOT
MOUNTING BLOCKS (ITEM 9).
- REPLACE AND TENSION CLUTCH BELT AS DETAILED IN "BELT REPLACEMENT
AND TENSIONING - ENGINE CLUTCH BELT" (PAGES 16 & 17).
3
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7
8
9
LARGE PULLEY DOES
NOT HIT IT, WHEN MACHINE IS
LOWERERED ON BRUSH DRIVE
ALSO, SEE PAGES
19 AND 30 FOR
TENSIONER
POSITION
5
6
TENSIONER MUST
BE TOWARD BACK
OF MACHINE, SO THAT

B
A
BRUSH REPLACEMENT
DETAIL A USE 1-1/4" SOCKET
IMPORTANT:
THREADS ARE LEFT HAND THREADS.
TURN CLOCKWISE TO LOOSEN AND
COUNTERCLOCKWISE TO TIGHTEN
(OPPOSITE FROM REGULAR THREADS).
- LAY MACHINE ON IT'S SIDE (MACHINE WILL NOT STAY IN THE UPRIGHT
POSITION WITH THE BRUSH DRIVE IN PLACE).
- OR REMOVE THE BRUSH DRIVE ASSEMBLY AS SHOWN ON "BRUSH
DRIVE - REMOVAL AND INSTALLATION" PAGE (PAGE 14).
- HOLD THE BRUSH SHAFT STILL WITH A 3/4" WRENCH, AS SHOWN IN
DETAIL B.
- USE A 1-1/4 SOCKET ON THE BRUSH TO SHAFT COUPLING, AS SHOWN
IN DETAIL A.
- IMPORTANT: TURN CLOCKWISE TO LOOSEN. THE THREADS ARE
OPPOSITE COMPARED TO REGULAR THREADS.
- REVERSE PROCEDURE TO PUT ON BRUSHES.
BRUSH REPLACEMENT
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DETAIL B
TO HELP REMOVE
BRUSHES USE 3/4"
WRENCH ON SHAFT TO
KEEP FROM TURNING

REACH INSIDE TO HEX
ON TENSIONER BODY
WITH 1" OPEN END
WRENCH.
PULL TOWARD FRONT
OF MACHINE TO
TIGHTEN BELT.
3/4" WRENCH ON
TENSIONER BOLT
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ENGINE CLUTCH BELT
REPLACEMENT AND TENSIONING
FRONT
ACCESS SIDE
ACCESS
REAR
ACCESS
FIGURE 2
BELT ACCESS
FIGURE 3
BELT TIGHTENING
LARGE
PULLEY
CLUTCH
BELT CLUTCH
(MOUNTED
TO ENGINE)
TENSIONER
(MOUNTED
TO FRAME)
FIGURE 1
HIDDEN PARTS

ENGINE CLUTCH BELT
REPLACEMENT AND TENSIONING
BELT REMOVAL
• REMOVE TENSIONER ACCESS PLATE (SHOWN REMOVED AT SIDE ACCESS
IN FIGURE 2).
• REMOVE FRONT ACCESS PANEL.
• LOOSEN TENSIONER BOLT, USING A ¾” WRENCH, WHICH REMOVES
TENSION FROM BELT.
• FROM THE FRONT ACCESS, CLUTCH BELT CAN BE REMOVED FROM LARGE
PULLEY.
• FINISH REMOVING BELT FROM CLUTCH BY WAY OF THE REAR ACCESS.
BELT REPLACEMENT
• FROM THE REAR ACCESS OF THE MACHINE, PLACE THE BELT AROUND THE
CLUTCH AND TENSIONER PULLEY, AND THEN PLACE IT ON TOP OF THE
LARGE PULLEY, AS FAR FORWARD AS POSSIBLE.
• FROM THE FRONT ACCESS, PUT THE BELT ON THE LARGE PULLEY.
BELT TENSIONING
EASILY DONE WITHOUT REACHING UNDER THE MACHINE
• PUT A 1” OPEN END WRENCH THROUGH THE TENSIONER ACCESS SLOT,
ONTO THE HEX ON THE TENSIONER BODY. START THE TIGHTENING
STROKE AT THE REAR OF THE SLOT.
• PULL THE WRENCH FORWARD TO TIGHTEN THE BELT (FIGURE 3) AND
HOLD.
• USING A ¾” WRENCH, SNUG UP THE TENSIONER BOLT TO HOLD TENSIONER
IN PLACE.
• REPOSITION WRENCH ON TENSIONER BODY AND HOLD IN PLACE. LOOSEN
TENSIONER BOLT SLIGHTLY. PULL AND HOLD TENSIONER. RETIGHTEN
TENSIONER BOLT.
• REPEAT AS NECESSARY TO TIGHTEN THE BELT.
• WHEN BELT IS TIGHT, TIGHTEN TENSIONER BOLT SO TENSIONER WILL NOT
SLIP.
• NOTE: OPEN END WRENCHES CAN BE FLIPPED OVER TO GIVE BETTER
ACCESS TO A BOLT.
THIS PROCEDURE IS BROKEN DOWN TO
VIRTUALLY EVERY POSSIBLE STEP.
THIS BELT CAN BE
REMOVED, REPLACED, AND TIGHTENED -
IN LESS THAN 5 MINUTES.
TIGHTENING ONLY - TAKES ABOUT 2 MINUTES.
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BRUSH DRIVE ASSEMBLY
WITH PIVOT ASSEMBLY REMOVED
TO SHOW BELT PATH MORE CLEARLY
PULLEY 1
PULLEY 2
PULLEY 4
PULLEY 3
1" WRENCH
FOR HEX ON
TENSIONER
BODY 3/4 WRENCH
FOR TENSIONER
BOLT ON BOTTOM
- 18 -
BRUSH DRIVE BELT
REPLACEMENT AND TENSIONING
BRUSH DRIVE ASSEMBLY
AS REMOVED FROM MACHINE
- REMOVE BRUSH DRIVE ASSEMBLY AS SHOWN IN "BRUSH DRIVE
REMOVAL AND INSTALLATION".
NOTE: BELT CAN BE REPLACED WITHOUT REMOVING BRUSH DRIVE
ASSEMBLY, BUT IS DIFFICULT TO TIGHTEN PROPERLY.
- LOOSEN TENSIONER BOLT. IT IS ON THE ON BOTTOM AND REQUIRES
A 3/4" WRENCH.
- REMOVE BELT FROM PULLEYS.
- REPLACE WITH NEW BELT. PLACE ON PULLEYS 1, 2, AND 4 FIRST.
- PLACE ON PULLEY 4 LAST.
- USE A 1" WRENCH, ON THE 1" HEX ON TENSIONER BODY, TO TIGHTEN
TENSIONER AGAINST BELT.
- USE THE 3/4" WRENCH ON THE TENSIONER BOLT TO HOLD IN PLACE.
- BELT MUST BE TIGHT.
- BOLT MUST BE TIGHT TO HOLD TENSIONER IN PLACE.
- REPLACE BRUSH DRIVE ASSEMBLY AS SHOWN IN "BRUSH DRIVE
REMOVAL AND INSTALLATION".
BELT REMOVAL, REPLACEMENT, AND TENSIONING
NOTE THAT THE BELT PATH IS
ALSO SHOWN ON THE INSIDE
OF THE FRONT ACCESS PANEL
THE CORRECT BELT PATH IS CRITICAL, FOR THE TENSIONER
TO WORK PROPERLY AND KEEP THE BELT FROM SLIPPING.
IMPORTANT

EXTRA VIEWS
BOTTOM VIEW WITH BRUSH DRIVE
AND PIVOT YOKE REMOVED.
SHOWS BELT PATH AND
TENSIONER POSITION
WIREFRAME VIEW.
SHOWS ALL PARTS
- 19 -

TANK MOUNT AND HANDLE
PAGES 26 & 27
ENGINE AND RELATED PARTS
PAGE 24
REGULATOR AND FUEL SYSTEM
PAGE 25
SPLASH GUARD PARTS
AND HEIGHT ADJUSTMENT
PAGE 29
WHEELS AND AXLE
PAGE 31
ELECTRICAL AND FUEL SYSTEM SCHEMATIC
PAGES 32 & 33
BRUSH DRIVE AND PIVOT YOKE
(INSIDE MACHINE)
PAGES 22 & 23
EXTREME STRIP - OVERVIEW
- 20 -
PARTS NOT LISTED ELSEWHERE
PAGE 21
BATTERY TRAY AND BATTERY COVER
PAGE 28
CLUTCH AND CLUTCH BELT DRIVE PARTS
(INSIDE MACHINE)
PAGE 30