Hitachi GR4000 Series Installation Manual page 200

GR4000 Installation Guide Version 1.00 - Preliminary
Step 3
do this supporting the basic control unit from its under surface using your hand.
Figure 5.5-3 Basic control unit removed
!
182
Remove the basic control unit from the device by pulling it towards you. Also,
Caution: The basic control unit (BCU) weighs approx. 4kg. Be careful not to drop it
when handling it, otherwise you may be injured.
520-10-014-20X