1.10
GENERAL INFORMATION
Glossary of Terms
ABDC:
After bottom dead center.
ACV:
Alternating current voltage.
Alternator:
Electrical generator producing voltage alternating current.
ATDC:
After top dead center.
BBDC:
Before bottom dead center.
BDC:
Bottom dead center.
BTDC:
Before top dead center.
CC:
Cubic centimeters.
Center Distance:
Distance between center of crankshaft and center of driven clutch shaft.
Chain Pitch:
Distance between chain link pins (No. 35 = 3/8" or 1 cm).
CI:
Cubic inches.
Clutch Buttons:
Plastic bushings which aid rotation of the movable sheave in the drive and driven clutch.
Clutch Offset:
Drive and driven clutches are offset so that drive belt will stay nearly straight as it moves along the clutch face.
Clutch Weights:
Rollers in the drive clutch which relative to their weight, profile and engine RPM cause the drive clutch to close
and grip the drive belt.
Crankshaft Run-Out:
Run-out or "bend" of crankshaft measured with a dial indicator while crankshaft is supported between centers
on V blocks or resting in crankcase. Measure at various points especially at PTO.
DCV:
Direct current voltage
CVT:
Centrifugal Variable Transmission (Drive Clutch System)
DCV:
Direct current voltage.
Dial Bore Gauge:
A cylinder measuring instrument which uses a dial indicator. Good for showing taper and out-of-round in the
cylinder bore.
Electrical Open:
Open circuit. An electrical circuit which isn't complete.
Electrical Short:
Short circuit. An electrical circuit which is completed before the current reaches the intended load. (i.e. a bare wire
touching the chassis).
End Seals:
Rubber seals at each end of the crankshaft.
Engagement RPM:
Engine RPM at which the drive clutch engages to make contact with the drive belt.
ft.:
Foot/feet.
Foot Pound:
Ft. lb. A force of one pound at the end of a lever one foot in length, applied in a rotational direction.
g:
Gram. Unit of weight in the metric system.
gal.:
Gallon.
ID:
Inside diameter.
in.:
Inch/inches.
Inch Pound:
In. lb. 12 in. lbs. = 1 ft. lb.
kg/cm²:
Kilograms per square centimeter.
kg-m:
Kilogram meters.
Kilogram/meter:
A force of one kilogram at the end of a lever one meter in length, applied in a rotational direction.
l or ltr:
Liter.
lbs/in²:
Pounds per square inch.
Left or Right Side:
Always referred to based on normal operating position of the driver.
m:
Meter/meters.
Mag:
Magneto.
Magnetic Induction:
As a conductor (coil) is moved through a magnetic field, a voltage will be generated in the windings.
Mechanical energy is converted to electrical energy in the stator.
mi.:
Mile/miles.
mm:
Millimeter. Unit of length in the metric system. 1 mm = approximately .040".
Nm:
Newton meters.
OD:
Outside diameter.
Ohm:
The unit of electrical resistance opposing current flow.
oz.:
Ounce/ounces.
Piston Clearance:
Total distance between piston and cylinder wall.
psi.:
Pounds per square inch.
PTO:
Power take off.
PVT:
Polaris Variable Transmission (Drive Clutch system)
qt.:
Quart/quarts.
Regulator:
Voltage regulator. Regulates battery charging system output at approx. 14.5 DCV as engine RPM increases.
Reservoir Tank:
The fill tank in the liquid cooling system.
Resistance:
In the mechanical sense, friction or load. In the electrical sense, ohms, resulting in energy conversion to heat.
RPM:
Revolutions per minute.
Seized Piston:
Galling of the sides of a piston. Usually there is a transfer of aluminum from the piston onto the cylinder wall.
Possible causes:
1) improper lubrication; 2) excessive temperatures; 3) insufficient piston clearance; 4) stuck piston rings.
Stator Plate:
The plate mounted under the flywheel supporting the battery charging coils.
TDC:
Top dead center. Piston's most outward travel from crankshaft.
Volt:
The unit of measure for electrical pressure of electromotive force. Measured by a voltmeter in parallel with the circuit.
Watt:
Unit of electrical power. Watts = amperes x volts.
WOT:
Wide open throttle.
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Содержание R09VA17AA
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