8-70
Shimming (counter rotation model)
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TIP:
• After installing the handle holder, pull the
drive shaft upward to remove any free play.
• Do not press the spring more than 5.0 mm
(0.197 in). Otherwise, too much torque will
be required to turn the drive shaft, making it
difficult to obtain correct measurements.
10. Install the special service tool “1” onto
the drive shaft at the lowest possible
position where the shaft diameter is
22.4 mm (0.881 in), and then set up the
special service tools “2”, “3”, and “4”.
11. Turn the drive shaft slowly clockwise and
counterclockwise, and then measure the
backlash between where the drive shaft
stops in each direction.
TIP:
• The resistance of the spring increases the
force required to turn the drive shaft. There-
fore, to obtain correct measurements, con-
sider the spring resistance force when
turning the drive shaft.
• Do not turn the drive shaft using too much
force. Otherwise, the forward gear will turn,
leading to incorrect measurements.
• When turning the drive shaft, hold it using a
little force. A knocking sound may be heard
when the drive shaft is rotated, but this is
the sound of the pinion contacting the
reverse gear and does not affect the back-
lash measurement.
12. Turn the drive shaft 180° clockwise, and
then measure the backlash again.
TIP:
• Measure the backlash at 4 points: “a”, “b”,
“c”, and “d”, turning the drive shaft 180°
clockwise after each measurement.
• Write down the measurement data in the
shimming check sheet.
Spring “1”: 90501-450A2
Handle holder “2”: EU0-23814-30
Setting height “a”:
3.0–5.0 mm (0.118–0.197 in)
Backlash indicator “1”: 90890-06706
Magnet base plate “2”: 90890-07003
Dial gauge set “3”: 90890-01252
Magnet base B “4”: 90890-06844
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