APRILIA TUONO R FACTORY 2007 Service Station Manual page 109

TUONO R_FACTORY
•
Triangular-toothed profile (7) of the
chain pinion;
•
The grooves for seeger rings (8) on the
secondary and main shafts must be
sharp-edged.
CAUTION
SMALL GREY SPOTS AND NOT VERY DEEP RECESSES
ARE ADMISSIBLE UP TO 0.5% OF THE SIDE SURFACE
MAXIMUM.
Check the secondary and main shaft seats for
wear:
•
Wear limit (9) Min. diam. 29.965 mm
(1.17972 in);
•
Wear limit (10) Min. diam. 24.972 mm
(0.98315 in);
•
Wear limit (11) Min. diam. 29.030 mm
(1.14291 in);
•
Wear limit (12) Min. diam 24.978 mm
(0.98338 in);
Allowed eccentricity (13) Max. diam. 0.02 mm (0.0008 in).
•
Check the inside diameter of the neutral gears of the 3rd, 4th and 6th gears.
Wear limit (14) Max. diam. 29.022 mm (1.14181 in).
•
Check the bushings of the neutral gears of the 2nd and 5th gears for rolling marks and
grooves. Measure the inside diameter of the gears.
•
Check the bushings of the free wheels (13-14) for rolling marks and grooves. Measure the
inside diameter of the bearings.
Wear limit Max. diam. 29.125 mm (1.14665 in).
•
Check that the lubrication hole of the secondary shaft is clean.
CAUTION
REPLACE THE GEAR PAIR WHEN THE SIDES OF THEIR TEETH ARE WORN OUT.
WHEN THE COUPLING TEETH OR HOLES ARE WORN OUT, REPLACE THE CORRESPONDING
ENGAGING GEARS.
Engine
ENG - 109