9-15
9.3 Main Control Unit
9
Removal
1. Remove the main control unit
2. Remove the two screws.
3. Remove the left-hand cover by pulling it slightly
toward the rear.
Reinstallation
Reinstallation is essentially in the reverse order of
removal.
To avoid damaging the electronic parts due to
discharge of static electricity, be sure to wear the
grounding wristband before replacing the parts.
Grounding the frame of the main control unit is not
necessary.
1. Remove the left-hand cover
2. Temporarily install the cover screw to the frame as
shown.
3. Wear the grounding wristband on the left wrist.
4. Connect the grounding wire to the screw.
9.3.2
Main Control Unit Left-hand Cover Removal/Reinstallation
Z
2
540
Left-hand Cover
Screws (2)
9.3.3
Connecting Grounding Wristband
Z
2
541
Wristband
Grounding Wire
Cover Screw
CAUTION
!