ENGINE 3-75
TOOTH CONTACT
After backlash adjustment is carried out, the tooth contact must
be checked. Pay attention to the following procedures:
• Remove the rear output shaft from the left crankcase.
• Clean and degrease several teeth of the drive and driven
bevel gears.
• Apply a coating of machinist’s layout dye or paste to several
teeth of the rear output shaft driven bevel gear.
• Install the rear output shaft.
• Rotate the rear output shaft driven bevel gear several turns in
both directions.
• Remove the output shaft and inspect the coated teeth of the
rear output shaft drive bevel gear. The tooth contact pattern
should be as shown in
1
,
2
and
3
.
• If tooth contact is found to be correct (example
2
), go to the
FINAL ASSEMBLY section on page 3-76 to complete installation.
1
Incorrect (contact at tooth top)
2
Correct
3
Incorrect (contact at tooth root)
• If tooth contact is found to be incorrect (examples
1
and
3
),
the shim thickness between the rear output shaft drive bevel
gear and bearing must be changed and the tooth contact
re-checked until correct.
#
Make sure to check the backlash after the tooth con-
tact has been adjusted, since it may have changed.
Adjust t he tooth contact and backlash until they ar e
both within specification. If the correct tooth contact
cannot b e m aintained w hen ad justing t he ba cklash,
replace t he rear ou tput shaft d rive an d d riven bevel
gears.
Tooth contact
Shim adjustment
Contact at tooth top
1
Increase shim thickness
Contact at tooth root
3
Decrease shim thickness
Part No.
Shim thickness
For rear output shaft drive bevel gear (
!!!!
3-92)
24935-19B00-025: 0.25 mm (0.0098 in)
24935-19B00-030: 0.30 mm (0.0118 in)
24935-19B00-035: 0.35 mm (0.0138 in)
0.30+0.30=0.60 mm (0.0236 in)
0.30+0.35=0.65 mm (0.0256 in)
0.25+0.25=0.50 mm (0.0197 in)
0.25+0.30=0.55 mm (0.0217 in)
0.35+0.35=0.70 mm (0.0276 in)
0.25+0.25+0.25=0.75 mm (0.0295 in)
0.25+0.25+0.30=0.80 mm (0.0315 in)
0.25+0.25+0.35=0.85 mm (0.0335 in)
Combined shim
Summary of Contents for LT-A450X
Page 2: ...SUPPLEMENTS LT A450XK9 09 MODEL LT A450XK8 12 13 WIRING DIAGRAM 14 ...
Page 47: ...PERIODIC MAINTENANCE 2 29 ...
Page 48: ...2 30 PERIODIC MAINTENANCE ...
Page 63: ...ENGINE 3 7 Remove the engine mounting nuts Remove the engine from the right side ...
Page 215: ......
Page 315: ...7 24 COOLING AND LUBRICATION SYSTEM ENGINE LUBRICATION SYSTEM To cylinder head OIL PUMP ...
Page 316: ...COOLING AND LUBRICATION SYSTEM 7 25 EXHAUST SIDE INTAKE SIDE ...
Page 317: ......
Page 332: ...8 14 CHASSIS REAR CARRIER Remove the rear carrier REAR BOX Remove the rear box 1 ...
Page 417: ......
Page 452: ...9 34 ELECTRICAL SYSTEM HEADLIGHT INSTALLATION Head light coupler Head light R Adjusting point ...
Page 484: ...10 26 SERVICING INFORMATION Rear box Rear fender Right mud guard Left mud guard ...
Page 510: ......
Page 514: ......