MTU 12V2000Gx6 series Operating Instructions Manual page 202

2. Mark all cables (1) prior to disconnection.
3. Disconnect all cables (1) from solenoid
switch (2).
4. Undo screws (3) on solenoid switch (2) and
remove solenoid switch (2).
5. Install new solenoid switch (2) and tighten
screws (3).
6. Connect up all wires as marked previously.
7. Close the control box and tighten the screws.
Final steps
1. Open shutoff valves in the supply and return line to/from preheater.
2. Disconnect preheater power sources.
3. Switch on preheater.
202 | Preheater | MS15054/03E 2018-07