Hitachi GR4000 Series Installation Manual page 180

GR4000 Installation Guide Version 1.00 - Preliminary
Step 2
replacement.
（See the section 4.5.2, which gives you the instruction related to the
attachment/detachment of the GR4000-160E1 power cable.）
Figure 5.4-8 Power cable removed from the power supply unit
WARNING: WHEN REPLACING A POWER SUPPLY UNIT OR INSTALLING AN
Step 3
Figure 5.4-9 Screws to be removed from the power supply unit
162
Remove the power cable from the power supply unit targeted for
ADDITIONAL ONE, REMOVE THE POWER CABLE FROM THE POWER SUPPLY
UNIT TO BE REPLACED. EVEN IF THE POWER SWITCH IS TURNED OFF,
ELECTRICITY IS STILL PRESENT IN THE CABLES CONNECTED TO THE
DEVICE, WHICH CAN CAUSE A FIRE OR ELECTRIC SHOCK.
Loosen the screws of the power supply unit.
Power cable
Screws
520-10-014-20X