Checking The Differential Gears; Checking The Differential Gear Motor - Yamaha YFM7FGPW Service Manual

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FRONT CONSTANT VELOCITY JOINTS AND
È
2
DIFFERENTIAL GEAR
EBS00166

CHECKING THE DIFFERENTIAL GEARS

1. Check:
• gear teeth
Pitting/galling/wear → Replace.
• bearing
Pitting/damage → Replace.
• oil seal
• O-ring
Damage → Replace.
2. Check:
• front drive shaft splines
• differential drive pinion gear splines
Wear/damage → Replace.
• spring
Fatigue → Replace.
Move the spring up and down.
3. Check:
• front drive shaft
Bends → Replace.
WARNING
_
Do not attempt to straighten a bent shaft;
this may dangerously weaken the shaft.
CHECKING THE DIFFERENTIAL GEAR
3V
MOTOR
1. Check:
• differential gear motor
1
M
MMM
M MMM
a. Connect two C size batteries to the gear
motor terminals 1 (as shown in illustration).
CAUTION:
• Be sure to check the motor operation
after removing it from the differential gear
case assembly.
• Do not use a 12 V battery to operate the
pinion gear.
È Check that the pinion gear 2 turns counter-
clockwise.
7 - 11
DRIV
M
M MMM
M
M MMM
M
M MMM
M
M MMM
M
MMM

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Yfm7fgpw 2007

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