Maintenance And Service - Siemens SINUMERIK 840D sl Equipment Manual

Maintenance and Service

Cleaning the device
Use a soft cloth moistened either with water or a mild cleaning agent to clean the housing,
display and operator control elements of the HT 8.
Checking the device
In order to prevent foreign bodies or liquids entering the HT 8, regularly check the device
• that all the housing screws are in place and tight
• for damage to the housing
• for damage to the cable cover or cable entry
Protect the device from environmental effects
Protect the HT 8 against
• direct solar radiation and heat sources
• mechanical vibration and shock
• dust
• moisture, and
• strong magnetic fields
Checking the emergency stop button and the enabling button
Check the emergency stop button regularly to ensure that it functions correctly.
Check the enabling button regularly to ensure that it functions correctly in the enable and
panic position.
Danger of death caused by damaged HT 8
Immediately check the functioning of the emergency stop button and the enabling button if
the device was subject to significant shock (e.g. because it was dropped).
Handheld Terminal HT 8
Equipment Manual, 02/2024, A5E52918633B AA
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