KEEWAY ARN125, Service And Maintenance Manual

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B A S I C T E R M S O F E N G I N E
A. DEAD CENTER
DEAD CENTER IS THE TWO LIMITED
POINTS, WHERE PISTON MOVES UP
AND DOWN IN LINE.
TOP DEAD CENTER
－
WHICH IS FARTHEST
AWAY FROM THE ROTATION CENTER OF
CRANKSHAFT.
BOTTOM DEAD CENTER
－
WHICH IS NEAREST
AWAY FROM THE ROTATION CENTER OF
CRANKSHAFT.
B. B. B. B. CYLINDER DIAMETER CYLINDER DIAMETER CYLINDER DIAMETER CYLINDER DIAMETER
INNDRE DIAMETER OF CYLINDER IS CALLED CYLINDER DIAMETER.
C.
C. C. C. JOURNEY JOURNEY JOURNEY JOURNEY
JOURNEY IS THE DISTANCE THAT PISTON
TRAVELS. WE USUALLY CALL ONE JOURNEY FROM
TOP DEAD CENTER TO BOTTOM DEAD CENTER.
D. WORKING CAPACITY OF THE CYLINDER
THE SPACE VOLUME OF PISTON WORKING
PATH, WHICH PISTON MOVES FROM TOP DEAD
CENTER TO BOTTOM DEAD CENTER IS CALLED
WORKING CAPACITY OF CYLINDER. USUALLY THE UNIT OF CYLINDER WORKING
VOLUME IS CC(CM
³
), SUCH AS 75CC, 125CC, WHICH IS DIFFERENT FOR WITH DIFFERENT
ENGINE MODEL.
E. TORQUE
TORQUE IS THE FORCE OF WHIRLING OR ROTATING.
WHEN WE LOOSEN OR SCREW NUTS/ SCREWS, WE HAVE
PUT TORQUE ON IT.
IN ORDER TO DRIVE THE WHEELS, THE ENGINE PUT TORQUE,
WHICH MAY STRENGTHEN LARGER FORCE ON WHEELS
WHEN CLIMBING SLOPE.
THE TORQUE IS EQUAL THAT THE FORCE MULTIPLIES THE