Contactors
Two contactors are used on eTriFlex machines. Both contactors are located
under the left side cover. The main contactor connects the 48V batteries to the
48V power bus for the lift/lower actuators, cutting unit motors, the optional 3WD
traction motor, and the starter/generator (model 04580). The steering motor is
connected to the 48V power bus at all times and is not controlled by the main
contactor. The main contactor is energized be the logic relay.
The traction motor contactor connects the 48V batteries to the 48V power bus for
the front traction motor controllers. Each front traction motor controller passes
48V power along to its specific traction motor as needed. The traction motor
contactor is energized be the logic relay.
g291504
Figure 87
1.
Main contactor
3.
Left side battery box
5.
Main terminals
2.
Traction motor contactor
4.
Coil terminals
Testing the Contactors
1. Park the machine on a level surface, lower the cutting units, set the key
switch to the O
FF
position and remove the key.
2. Unplug the 48V battery disconnect; refer to
48V Battery Disconnect (page
. On model 04580 machines, disconnect the battery negative (-) cable
at the 12V system battery; refer to
Removing and Installing the 12V System
Battery (Model 04580) (page 5–105)
.
3. Remove the left side cover.
4. Record the wire connector locations on the contactor being tested for
assembly purposes, and disconnect the harness electrical connectors from
contactor. Check the contactor and the harness connectors for damage or
corrosion and clean or repair as necessary.
Greensmaster® eTriFlex 3360 and 3370
Page 5–97
Electrical System: Testing the Electrical Components
19239SL Rev B
