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2-4. Replacement of Main Parts
2-4. Replacement of Main Parts
2-4-1. General Information for Parts
Replacement
Periodic Replacement
It is recommended to replace the parts described in the
table below periodically.
And, it is recommended to clean the filters periodically.
Part Name
Fan motor unit
Filter of front panel A
Filter of front panel (lower)
Tightening Torque
Tighten the screw at the standard tightening torque below
when securing the parts.
Screw Size
Standard Tightening Torque
M 2.6
0.5 to 0.6 N.m {5 to 6 kgf.cm}
M 3.0
0.7 to 1.0 N.m {7 to 10 kgf.cm}
M 4.0
1.2 to 1.6 N.m {12 to 16 kgf.cm}
2-6 (E)
Recommended Replacement
Cycle
Five years
Same time of the fan motor
replacement
Same time of the fan motor
replacement
2-4-2. Power Supply Unit Replacement
When the POWER A or POWER B indicator on the front
panel flashes in red, any trouble occurs in the power supply
unit.
In such a case, check that the power cord is connected
tightly.
If indicator flashes in red though the power cord is con-
nected, replace the power supply unit corresponded to the
flashing indicator. The power supply unit on the left is
POWER A, and the power supply unit on the right is
POWER B.
n
The status of the power supply unit can be checked on the
menu "Service : Device". (For the menu operations, refer
to the operation manual.)
. "Rdy" : Legal status
. "Err" : Illegal status
. "Non" : Not mounted
>Exit
Service : Device
Device
Power Supply A
Power Supply B
When two power supply units are installed in the MAV-70,
either one of two power supply units can be replaced
during the power on.
n
When replacing the power supply unit during the power
on, the following precautions should be followed.
. Be sure to put on the earth-band to establish a ground. If
not, this may cause malfunction.
. Be careful not to give any shock to HDD.
. Replace the power supply unit within three minutes in
consideration of air cooling effect.
Replacement part
Please order the BKMA-PS70 (Redundant Power Supply
Unit).
n
The parts in a power supply unit cannot be replaced. Be
sure to replace the whole power supply unit.
STS Hours (h)
Rdy
2400
Err 3200
MAV-70
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