Siemens SINAMICS S120 Operating Instructions Manual page 117

1. Cut/release the cable ties that hold the coolant hoses.
2. Release the union nuts of the hose connections
3. Tighten the quick-release locks on the collecting pipes
4. Release the hose clips at the ends of the coolant hoses.
5. Remove the hose couplings by turning and applying a little force.
Installing coolant hoses
Proceed as follows:
1. Shorten the new hoses so they have the same length as the removed hoses.
2. Fit the hose clips.
3. Apply some silicon-free lubricant to the hose bushings. At both ends, insert the hose
couplings into the hose. Insert the hose couplings up to the end stop.
4. Maintain a 10 mm clearance between the hose clamps and the end of the hose. Tighten
the hose clamps with a torque of 4 Nm.
5. Insert the hoses in the converter:
– Use new flat seals for the union nuts.
– Maintain a minimum separation of 25 mm between the busbars and the coolant hoses.
– Do not bend the hoses. To prevent bends in the hoses, choose the same routing path
– Fix the hoses with cable ties.
NOTICE
Damage to the coolant hoses caused by sharp objects
Damage can occur to the coolant hoses if you use sharp objects for the installation. The
coolant hoses can leak. Leaking coolant can damage the converter.
Avoid applying force with pointed objects (e.g. screwdrivers) to the coolant hoses.
Siemens Drives & PLCs
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A
as delivered.
①
at the converter.
②
.
Servicing
8.3 Waiting
117