3-1 (E)
MAV-555
Section 3
Parts and Board Replacement
3-1. Cautions before Servicing
The hard disk drives (HDD) are installed in the MAV-555.
The HDD is a precision part. The causes such as shock, vibration and static electricity to the unit, and the
conditions of temperature and humidity may damage HDD or its data.
Before servicing, read the following cautions carefully, and perform the servicing with extra care.
Cautions about Shock and Vibration
When transporting and moving
.
Pack the unit using the packaging materials specified by the manufacturer.
.
Use a proper cart.
.
Put a cushion
*
on the cart.
.
Avoid rough routes, and manage the cart gently.
When placing on a floor or table
.
Put a cushion
*
on stable and horizontal place, and put the MAV-555 on it gently.
.
Do not place the unit near vibrating equipment.
For the MAV-555 and HDD
.
Never hit the HDD by a tool, and drop it on the MAV-555.
Take extra care
.
Never give vibration or shock to the HDD during the power on, or within about 30 seconds after
turning off the power.
*
Cushion : Polyethylene foam (density : 38 kg/m
3
, surface intrinsic resistance : 10
11
to 10
12
Z
, thickness : 50 mm) or equivalent.
Cautions about Removal/Installation of the MAV-555 from Rack
.
Never give shock to all the rack mounted unit which has a HDD.
.
Be sure to turn off the power of the rack mounted unit which has a HDD.
Cautions about Static Electricity
.
Keep static-producing items such as plastics (air cap and others) away from the working area.
.
When deal with the HDD, must be put on the earth-band to establish a ground.
Cautions about Temperature and Humidity
.
Temperature and humidity of storage and operating conditions must be kept within the correct specified range.
.
Never turn on the power with the cabinet is removed in consideration of the air-cooling effect.
When turn on the power without installing the cabinet, it is essential that the unit should be covered
with the substitute for the cabinet.
Cautions when an Error Appears in HDD
.
Treat the MAV-555 conform to the above cautions, even when an error appeared.
.
Keep the MAV-555 in the condition in which the error appeared, and write down the details of the error.
