Transformer (Tf1); Transformers (Tf2, Tf3, Tf4); Overcurrent Relay (Orc) - Hitachi SAMURAI Series Service Manual

3 Servicing
Electrical components

3.4.6 Transformer (TF1)

To have access to electrical transformer TF1, follow the steps described in
Access to electrical components"
1 Remove all the wirings corresponding to TF1. As shown
in the image.
2 Remove the 2 screws that fix the TF1 to the plate

3.4.7 Transformers (TF2, TF3, TF4)

To remove any of the TF2, 3 or 4, simply open left door of the E-box, and follow the next steps according to the
transformer to remove.
1 Remove all the wirings corresponding to the
transformer to remove. (As shown the image)
2 Remove the 2 screws that fix the transformer to the
plate.

3.4.8 Overcurrent relay (ORC)

To remove the overcurrent relay (ORC), open the E-box, and follow the next steps.
1 Remove all the wirings.
2 Remove the 2 screws that fix the ORC to the plate.
83 SMGB0120 rev.0 - 11/2017
"Second level components"
to CN1
Screws (x2)
Screws
to PCN239 to CN56 to PCN238 to CN55
Screws
T2
T1
Ru(Brown) Sv (Black)
in chapter "3.4.4
to CN2A
to PCN240
to CN57
95 NC
96 NC
T3
Tw (Grey)
3