Mitsubishi Electronics MDS-D2/DH2 Series Pager User Manual


 
8 - 3
MDS-D2/DH2 Series Instruction Manual
8.1 Periodic Inspections
<For the spindle motor SJ-D Series>
(1) Detaching the cooling fan unit
Remove the cooling fan unit from the spindle motor.
[1] Remove fixing screws (hexagon socket screws at four locations) for the terminal box cover.
[2] Remove the terminal box cover.
[3] Remove the three lead wires (BU, BV, and BW) for the cooling fan from the one-touch terminal block.
[3-1] Applicable flat-blade screwdriver
Always use a flat-blade screwdriver whose blade edge size is 0.6×3.5mm for working.
(SZF1-0.6×3.5 manufactured by Phoenix Contact)
[3-2] Insert the screwdriver into the insertion point (small square hole) of the one-touch terminal block in a diagonal
direction. When the spring touches the blade edge, push the screwdriver down to the position that hits a
conductive plate to the direction of arrow (a), tilting it in the inside direction of the terminal block.
The screwdriver is held if it inserts appropriately.
[3-3] After confirming that the spring is open, slowly unplug the lead wires for the cooling fan to the direction of arrow
(b).
(Note 1) Do not let foreign objects enter the motor. In particular, if conductive objects such as screws or metal
wires, etc., or combustible materials such as oil enter, the motor could be damaged.
Terminal box cover
Hexagon socket screws
at four locations
Spindle motor
Inside the terminal box
One-touch terminal block
(b)
(a)
Cooling fan lead wires
(three pieces)
One-touch terminal block
Screwdriver