Maintenance, overhaul and repair
Operating Instructions ET-xx8 / MT-xx8
R. STAHL HMI Systems GmbH / OI_ET_MT-xx8_en_V_01_02_03.docx / 10.03.2021
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12.3 Maintenance
The devices are maintenance-free across their entire lifespan.
12.4 Repair
The display and E-box modules cannot be repaired by the customer.
Any repair on the device is to be performed by R. STAHL only.
The modules may be sent back separately.
The modules must be dismounted by qualified staff only (see chapter
).
12.4.1
Mounting / dismounting the modules
The xx8 SERIES HMIs consist of a display and an E-Box module which are mounted together.
These modules can be replaced for repair purposes.
Dismounting modules:
Disconnect all circuits from the power supply.
Remove cover of terminal boxes.
Disconnect cable and earthing, see Installation Manual "Module exchange xx8
(IM_Module_exchange_xx8)".
Loosen the screws.
Mounting modules:
The steps for mounting the modules are those described in "Dismounting modules" in reverse.
Tightening torque
Screws (in the terminal boxes) connecting the display
and the E-box
10 Nm