Maintenance Category B - ABB SF6 LTB 245E1 BLG 1002A Product Manual

Inspection intervals

3.3 Maintenance category B

To be inspected
1.
Ocular inspection
2.
Rating plates
3.
Operation counter
4.
Visual inspection in
operating mechanism
5.
Corrosion inspection
Rust protection
6.
Greasing
10
Inspection interval
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
3-6 years or 2,000 mech. CLOSE/
OPEN operations.
Operating and Maintenance Instructions
Measures / Instructions /
Check external cleanliness, heater
element function, gas pressure, valves
and drainage holes.
No special tools needed.
See Chapter 2.1.3
and 1HSB515409-100 for BLG 1002A
or 1HSB535409-100 for BLK 222.
Make a note of the serial number.
Make a note of the number of
operations.
Look for loose bolts and nuts, oil leaks
from dashpots.
If leakage replace the complete
dashpot.
No tools necessary.
See Manual 1HSB515409-100 for BLG
1002A or 1HSB535409-100 for BLK
222.
Visual inspection.
Rust stains polished off and treated
with rust protection.
See Chapter 2.2.4
Circuit-breaker in open position, closing
springs discharged. Greasing of the
worm gear ( only BLG 1002A) and
shafts in latches in the operating
mechanism with grease "M".
See Chapter 2.1.5 ,Chapter 2.2.3
Manual 1HSB515409-100 for BLG
1002A or 1HSB535409-100 for BLK
222.
1HSB435409-100 en1
Tools
and Chapter 2.1.4
.
and