37 7. Electrical System; 37 7.1 Electrical Connection - Bosch TCE 4460 Instrucciones De Reparacion

7. Electrical system
The integral electrical system has no fuse protection.
In the event of malfunctioning at the motor, switching
mechanism or 2-speed switch, proceed as follows to
check the machine:
1. Disconnect the machine from the mains.
2. Disconnect the cable lugs from the motor.
3. Insulate the cables to prevent short circuit.
4. Re-connect the machine to the mains.
5. Press the pedal to check whether there is still a pas-
sage of current.
6. If there is, despite the motor being disconnected, the
next step is to replace the switching mechanism or the
2-speed switch. If the fault persists, replace the motor.
Refer to circuit diagrams for motor replacement.
7.1 Electrical connection
The mains connector is to be connected by a qualified
electrician on setting up the machine. The type of mains
connector is designed for single-phase or three-phase
supply (optional) in accordance with the official regu-
lations.
Check whether the mains voltage corresponds to the
voltage on the rating plate.
Robert Bosch GmbH
Electrical system | TCE 4460-TCE 4465 | 63
Connection of three-phase connector
Fig. 67: Color code for three-phase connection.
Phase Designation
L1 Phase 1
L2 Phase 2
L3 Phase 3
Protec- Protective conductor
tive con-
ductor
Tab. 7: Color code for three-phase connection
Connection of single-phase connector
Fig. 68: Color code for single-phase connection.
Phase Designation
L1 Phase 1
L2 Phase 2
L3 Protective conductor
Tab. 8: Color code for single-phase connection.
i Provide fuse protection for the
cable national regulations.
en
Wire color
Black
Brown
Grey
Green/yellow
Wire color
Black
Brown
Green/yellow
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1 695 100 278 2013-12-03
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