Megger TDS40, Operating Manual, Page: 55 / 71

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7. Repair and Fault Diagnostics
Repair and maintenance work has to be carried out by Megger or authorised service
partners using original spare parts only. Megger recommends having the system tested
and maintained at a Megger service centre once a year.
This test allows, amongst others, checking the gas pressure of the discharge switch and
the state of the HV switch.
Megger also offers its customers on-site service. Please contact your service centre as
needed.
7.1 Replacing Fuses
If the device cannot be switched on, even though it is connected to the mains power
supply, both fuses below the power supply socket must be checked. The fuse holder must
be pulled out to do so.
If the fuses are defective, they must be replaced with suitable microfuses (5 x 20 mm) of
the type T2.5A. Disconnet from the mains before changing a fuse.
If the fuses continue to trip, please get in touch with the Megger service department in
order to have the problem resolved.