Manual for ION™-M7P/17P (M-cab)
& Subassemblies
Page 40 MF0145A7A_uc_FCC_modif.doc
6.2. REPLACING THE FAN UNIT
Replacement of the fan unit is not required as a preventative measure. Only if an
alarm indicates a malfunctioning of a fan must the unit be exchanged.
Note: Please observe that the fan unit can only be replaced as a whole.
Do not remove the fans separately.
Read the health and safety warnings in section 1.2 as well as
the instructions in
section 6.1 General before starting with the replacement.
1. S
witch off the Remote Unit. Make sure mains is disconnected for the
following replacement procedure. Then, proceed as follows:
2. Loosen the four tallow-drop screws
M4x8 by which the fan plate is
screwed to the cabinet. Remove the
four screws and the corresponding
washers.
3. Remove the fan unit – by putting slight
pressure on the fan plate cover – to a
position that allows access to the fan
connector and the earth-bonding
cable.
4. Unscrew the fan connector and then
disconnect the earth-bonding cable.
Fan-unit connector
Earth-bonding cable
Note: To observe the specified torque of 650 Ncm for an M5 thread, use
an appropriate tool for the following screwing procedures.
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