General Information
Service Manual – PBU Propane Floor Burnisher
7
Warning: The proper maintenance of equipment is vital to safe operation. LPG engines
are dependent on engine tune up, and air filter replacement. CO concentration
(production) skyrockets when the air to fuel ratio becomes fuel rich. Follow the
recommended Maintenance Schedule for the engine found in the Engine Operator/
Owner Manual as well as the Maintenance And Adjustments schedule found in the
Propane Floor Equipment Operator’s Manual that were supplied with the equipment.
CO SAFETY EQUIPMENT AVAILABLE BY MANUFACTURER
−
Carb Gard automated emissions monitoring will shut down the engine when high emissions are
detected.
− Three-way type catalytic converter to scrub CO, Hydro Carbons (HC), and Nitrides of Oxygen
(NOx) from the engine exhaust providing the lowest possible emissions
− NOTE: Dead Stop CO Detector provided in Literature Pack. Replacement part number 98758A.
CO SAFETY EQUIPMENT AVAILABLE ON THE MARKET
− Positive or negative pressure high volume ventilation blower capable of exchanging complete
room air volume to maintain CO levels below OSHA exposure limits.
− Digital combustion analyzers for tail pipe emissions monitoring
− OSHA Approved CO Monitor
Caution: Overfilling the propane tank is the number one cause of problems with a propane
machine. This can cause the engine to run poorly or not at all.
In addition, overfilling allows liquid propane to enter the fuel control system, possibly
ruining the lockoff/regulator assembly. This voids the warranty on affected parts of
the machine. To avoid problems, read and understand fully, the section “Filling and
Storing Propane Tanks.”
General Machine Description
The PBU (Propane Floor Burnisher) is manufactured for two applications: a buffer/burnisher and a floor
stripper. Both designs are portable. Buffers operate at high speed to produce high gloss floor surfaces. The
unit is powered by a 4-stroke, air-cooled, v-twin, liquid propane-fueled engine. During operation the unit
buffing wheel contacts the floor to provide buffing action. Operator walking speed behind the unit determines
results. The operator should avoid loose tile, electric outlets, door thresholds and any object which may
come in contact with the pad, other than the floor itself. When equipped, the Carb Gard system is a warning
device that alerts the operator to the need for engine service. Carb Gard monitors an oxygen sensor for an
indication of relative air/fuel mixture. If the mixture exceeds an allowable limit for more than one minute,
Carb Gard will shut down the engine.
