L3692
Tmax T8
17/39
Doc N°
Mod.
Apparatus
Scale
Page N°
1SDH000682R0002
L3885
L5757
- If the undervoltage release is installed, disassemble the coil support and unload the springs of the operating mechanism by
closing and opening the circuit-breaker.
Fig. 26
8.4.5. Mechanical operating mechanism
- Clean (use a cleaning product such as Henkel’s 273471 or equivalent if there is a heavy coating of dirt) and lubricate (in the
points indicated in fi gure 27, det. A, as per the First Level) the shafts and opening closing latches with MOBILGREASE 28
(EXXON MOBIL).
- Clean (use a cleaning product such as Henkel’s 273471 or equivalent if there is a heavy coating of dirt) and lubricate the operating
shaft supports, including those on the sides of the circuit-breaker (see fi gure 27, det. B) with MOBILGREASE 28 (EXXON MOBIL).
- Make sure that the opening and closing shafts are free to turn.
det.A
det.B
Fig. 27
- Contact ABB Sace (*) if the springs are deformed or tarnished, if rings are missing or if the control is excessively worn.
(*) ABB may replace spare parts type “A” after having obtained the customer’s approval.
