Yamaha YFM4FAR, Service Manual

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DRIV
FRONT CONSTANT VELOCITY JOINTS AND
DIFFERENTIAL GEAR
3.Check:
●
Differential gear operation
Unsmooth operation
→
Replace the
differential gear assembly.
Insert the double off-set joint into the
differential gear, and turn the gear back and
forth.
MEASURING AND ADJUSTING THE
DIFFERENTIAL GEAR LASH
Measuring the differential gear lash
1.Secure the gear case in a vise or another
supporting device.
2.Remove:
●
Drain plug
●
Gasket
3.Install:
●
A bolt of the specified size
1
(into the drain plug hole)
CAUTION:
Finger tighten the bolt until it holds the ring
gear. Otherwise, the ring gear will be
damaged.
4.Attach:
●
Gear lash measurement tool
1
●
Dial gauge
2
a
Measuring point is 25 mm (0.98 in)
5.Measure:
●
Gear lash
Gently rotate the gear coupling from
engagement to engagement
.
NOTE:
Measure the gear lash at four positions. Rotate
the shaft 90° each time.
Gear lash measurement tool:
P/N. YM-01475, 90890-01475
Differential gear lash:
0.10 ~ 0.50 mm
(0.004 ~ 0.020 in)