Checking The Withdrawable Part On The Service Truck / Checking The Switching-Device Truck; Checking The Service Truck - Siemens NXAIR Installation Instructions Manual

Final assembly work
Fig. 294: Bushings in switching-device compartment
To access the 6 bushings in the switching-device compartment (1), open the shutter to the
connection compartment and the shutter to the busbar compartment, see Operating
Instructions with order number 110-0134.9.
Check the grease film on the silver-plated surface (2) of the fixed contacts in the 6 bushings.
The grease film must be uniformly thin, and applied all around.
•
The surface of the bushing tulips (3) must be clean, dry and non-greasy.
•
•
•
Clean the switching-device compartment.
✓
The 6 bushings in the switching-device compartment are ready for service.

12.10 Checking the withdrawable part on the service truck / checking the switching-device truck

Remove foreign objects.
For cleaning the circuit-breaker, see separate operating instructions for circuit-breaker
3AE.

12.11 Checking the service truck

Remove foreign objects.
Clean the service truck.
202
If required, clean the silver-plated surface (2) with a soft, lint-free cloth, and grease:
Apply a uniformly thin film of Longterm 2 plus all around.
If required, clean with a soft, lint-free cloth.
Check all 6 bushings, and clean if required.
Close the shutter to the connection compartment and the shutter to the busbar
compartment, see Operating Instructions with order number 110-0134.9.
NXAIR /
Fig. 295: Detail of bushing
≤
40 kA 110-0084.9 / 15