Twelve-Lead Reconnection - Kohler 7.5EOR Service

L0 (Neutral)
Ground
Load
Side
Line
Side
4 3 2 1
Stator Leads
60 Hz
L0-L1 100-120 Volt
L0-L2 100-120 Volt
L0-L2 200-240 Volt
Figure 10-3 100-120/200-240 Volt
3-Wire Configuration
200-240 Volt Configurations
The 200-240 volt configuration does not use a jumper
lead. If the unit was originally wired for straight 100-120
volt, 3 wire, remove the jumper lead (see Figure 10-1 for
location).
L0 (Neutral)
Ground
Load
Side
Line
Side
4 3 2 1
Stator Leads
60 Hz
L0-L1 not used
Figure 10-4 200-220-240 Volt 2-Wire Configuration
TP-6073 4/06
L0
GRD.
L2
L1
Factory
Two-Pole
Circuit
Breaker
100-120/200-240 Volt,
3 Wire
50 Hz
100-120 Volt
100-120 Volt
200-240 Volt
L0
GRD.
L1
Single-Pole
Circuit
Breaker
Tape to insulate
from ground
200-220-240 Volt
2 Wire
50 Hz
200-220-240 Volt

10.13Twelve-Lead Reconnection

The reconnection procedure that follows details voltage
reconnections only.
frequency changes, adjust the governor and voltage
regulator. See the generator set service manual for
information regarding frequency adjustment.
In all cases, follow National Electrical Code (NEC)
guidelines.
Reconnect the stator leads of the generator set to
change output phase or voltage. Refer to the following
procedure and connection schematics. Follow all safety
precautions at the front of this manual and in the text
during reconnection procedure.
Voltage reconnection. Affix a notice to the generator set after
reconnecting the set to a voltage different from the voltage on
the nameplate. Order voltage reconnection decal 246242
from an authorized service distributor/dealer.
Twelve-Lead Reconnection Procedure
1. Move generator set start/stop switch to the STOP
position.
2. Disconnect engine starting battery, negative (--)
lead first. Disconnect power to battery charger, if
equipped.
3. Use Figure 10-5 to determine generator set
voltage configuration. Note original voltage and
reconnect as needed.
If the generator set requires
NOTICE
Section 10 Wiring Diagrams 73