Toro Workman GTX Electric & Lithium Service Manual page 133

5. Disconnect electrical conductors from SC1: lithium--
ion battery controller and position them away from con-
troller:
A. Remove nut, lock washer, flat washer and cable
connector from battery controller terminals negative,
B--, B+ and positive terminal. (Fig. 67).
B. Carefully unplug the COM and M--S wire harness
connector from battery controller.
C. Position cables and wire harness connector
away from controller.
6. Support battery controller to prevent it from falling.
7. Remove four (4) nuts (7) and carriage bolts (17) that
secure battery controller to controller bracket. Carefully
remove battery controller from vehicle.
Installation (Fig. 66)
1. Position SC1: lithium--ion battery controller to con-
troller bracket and secure with four (4) carriage bolts
(17) and nuts (7). Torque the nuts (7) from 45 to 55 in- -lb
(5 to 6.2 N- -m).
2. Make sure battery controller terminals and cables
are clean (no corrosion) and in good condition.
3. Connect electrical conductors to battery controller:
A. Carefully connect COM and M--S wire harness
connector into traction controller. Make sure that
connector is fully plugged into traction controller
socket.
B. Secure controller cables to controller terminals
negative, B--, B+ and positive terminal with nut, lock
washer and flat washer (Fig. 67). Torque the nuts
from 72 to 88 in- -lb (8 to 9 N- -m).
4. Connect the conductors between the battery pack
and vehicle components (see Opening Battery Circuit in
the General Information section of this chapter). Make
sure to torque hex nuts on battery terminals from 72 to
88 in- -lb (8 to 9 N- -m).
5. After all cable connections are made, apply Toro bat-
tery terminal protector (see Special Tools) to all battery
posts and controller cable connectors to prevent corro-
sion. Make sure that cable terminal boots are positioned
over all connections.
6. Secure rear frame panel cover to vehicle. Lower and
secure cargo box. Install seat base assembly.
7. Before returning vehicle to operation, fully charge
the batteries by connecting the on--board battery char-
ger to an appropriate electrical outlet.
Workman GTX Electric Lithium
IMPORTANT: Do not open the lithium- -Ion battery
controller. There are no serviceable parts on or in
the controller. If you open the controller, you will
void the warranty. The controller is protected by
tamper- -alerting devices.
Note: If the SC1: Lithium--Ion Battery Controller is re-
placed for any reason, the machine software must be
updated; contact an Authorized Toro Distributor for as-
sistance.
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8
1. Negative (- -) terminal (power supply negative (- -) cable)
2. B- - terminal (negative (- -) battery cable)
3. COM terminal (machine wire harness)
4. M- -S terminal (battery interface harness)
5. B+ terminal (positive (+) battery cable)
6. Positive (+) terminal (power supply positive (+) cable)
7. SC1: Lithium- -ion battery controller
8. Contactor
9. SC2: Traction controller
1. Lithium- -Ion battery con-
troller
2. Positive (+) terminal
3. B+ terminal
Page 3B - - 63
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Figure 67
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2
3
4
7
5
6
Figure 68
4. M- -S terminal
5. B- - terminal
6. Negative (- -) terminal
7. COM terminal
Electrical System
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