Siemens 3AH3, Operating Instructions Manual

Page: 54 / 64

Maintenance
54 9229 9860 176 0E
2013-08-22
Special operating conditions
If the vacuum circuit-breaker is operated under unfavourable conditions indoors
(heavy and frequent condensation, dusty air, etc.), we recommend cleaning the
insulating parts and possibly the outer parts of the circuit-breaker at shorter inter-
vals.
For this, only the following agents may be used on the individual functional parts of
the circuit breaker:
Lubricant:
Lubricants are available from the responsible Siemens representative:
Fig. 72 Bearings and sliding surfaces of the pole side
Bearings, sliding surfaces: Isoflex Topas L 32
Bearings and bearings of the auxiliary switch S1
that are inaccessible in terms of greasing: Shell Tellus Oil 32
Order no.
180 g Isoflex Topas L 32 3AX11 33-3H
1 kg Shell Tellus Oil 32 (special oil) 3AX11 33-2D
1 kg Isoflex Topas L 32 3AX11 33-3E

Isoflex Topas L 32
t Bolts of the angle lever
u Bolts and eyebolt of the insulating operating rod
v Contact pressure spring, spring plate and spring bearing
w Spring guide and bolts of the angle lever