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REPLACING FANS
8 - TROUBLESHOOTING & MAINTENANCE
8.8 Replacing Fans
The fans for the S4 drives are only on the Frame/Size 2 drives and up. Frames 0 and 1 do not have fans.
The fans are located on the bottom of the drive and cool off the heatsinks. The fans should be clean from
dust, dirt etc. because cooling off the heatsink is essential.
To replace fan, you must unfasten the screws in the four corners of the fan. Frame size 2, 4, 5 and 6 drives
will have two fans, and the frame size 3 drives will have one fan. Examples shown below.
Frame 2 fans
Frame 3 drive fan
You must now disconnect the fan wires (B, R) from the J1 terminals. Frame 2 will have fan wires (B and
R) connected to the J1 and J9 terminals. There is a grommet that the wires travel through to get to the J1
and J9 terminals. This grommet must be loosened so the wires can get out. After installing new fans, this
grommet must be tightened.
WARNING: DISCONNECT POWER TO DRIVE
BEFORE REPLACING FANS
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