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No. 2D730-148E*O
3.27.2
Cleaning procedures for the new-type palm switch
(1)
Fit the dial unit attaching/detaching
tool (service part) into the groove on the top of the dial
unit. Rotate the tool counterclockwise
to remove the dial unit.
(2)
(3)
Remove the ball from the palm switch.
Clean the detection shafts and 45" bearing (shaded sections in the figure) with a piece of
gauze.
(4)
Clean out the inside of the case using the air spray.
Take appropriate
measures to prevent dust from flying out. Check for foreign matter inside
the case.
(5)
(6)
Clean the gap between the dial and the cover (circumference)
using the air spray.
Clean the ball and place it back into the palm switch. Fit the cover locking tabs into the
slots taking care not to allow the ball to interfere with the cable.
(7)
Fit the dial unit attaching/detaching
tool into the groove on the top of the dial unit. Rotate
the tool clockwise to securely mount the dial unit. (Rotate the dial unit attaching/detaching
tool until it locks into place with an audible click.)
(8)
Confirm that there are no abnormalities
in ball rotation and dial rotation.
Rotate the dial unit attaching/
detaching tool in this direction
to remove the dial unit.
Slot position for
releasing the
Dial unit attaching/
detaching tool
ial unit-
Slot position for
locking the dial unit
Rotate the dial unit attachina/
detaching tool in this direction
to mount the dial unit.
3-85
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