Operation Manual

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7-2
７
Turn off the main power source before starting maintenance.
Otherwise, an electric shock or injury may result.
Set the Safety Switch for Stopping the Scanner to cents [OFF].
Otherwise, an accidental contact with the rotating scanner may
result in injury.
Otherwise, an electric shock may result.
WARNING
7.2 MAINTENANCE ON EACH UNIT
Scanner NKE-1079/1075/1089/1087･････････････････････････
After finishing the maintenance work, set the safety switch for stopping the scanner to
“ON”.
Precautions on Mounting the Cover
When the cover is removed for regular checkup and replacement of parts and refitted
after such work, the procedures of fastening bolts shall be taken with the following
precautions:
(a) The proper fastening torque of the fitting bolts (M8) is 1176 to 1470 N•cm (120 to 150
kgf•cm) (which makes the inside water-tight and protects the packings against
permanent compressive strain).
The packings start producing from the cover at the torque of approximately 1470
N•cm (150 kgf•cm) or more.
Do not fasten the bolts with a torque exceeding the specified value. Otherwise, the
screws may be broken.
(b) Use an offset wrench of 11 mm × 13 mm or a double-ended wrench of 13 mm × 17
mm (not longer than 200 mm).
(c) Screw all the bolts by hand first to prevent them playing, then fasten them evenly in
order not to cause one-sided fastening. (Fasten the bolts with 25% of the required
torque at the first step.)
*: Fasten the bolts in the diagonal order.