Toro Greensmaster eFlex 1021 Service Manual page 118

Testing the Main Contactor (continued)
Electrical System: Testing the Electrical Components
g339028
1. Main contactor
2. Main contact post
6. Use a multimeter to measure the voltage across the main contactor posts as
follows:
A. Position the rubber boots away from the main contactor posts to get
access to the posts with multimeter probes
B. Connect the multimeter common (-) test probe to the ground connector in
the work light connector (step 5).
C. Ensure that the traction bail is in the NEUTRAL position. Temporarily
connect the battery pack; refer to
(page 5–3)
D. Turn the key switch to the START position to wake up the machine and
then turn the key switch to the RUN position. The main contactor should
click as it is energized.
E. Use the second multimeter test probe, check that all 4 posts on the main
contactor have system voltage (42 V to 64 V @ 100% state of charge)
present (Figure
present, the contactor is damaged. If none of the posts have voltage
present, ensure that common (-) test probe is still connected to the work
light connector and if so, look for electrical issues at other machine
components as the contactor is not being energized correctly.
F. Turn the key switch to the OFF position. The main contactor should click
as it is de-energized.
G. Disconnect the battery pack; refer to
(page 5–3).
7. If testing determines that the main contactor is damaged, ensure that the
battery pack is disconnected and then replace the main contactor.
8. After you complete the main contactor testing, install the battery cover onto
the battery mount. Secure the battery cover with four bolts.
9. Connect the battery pack; refer to
(page 5–3).
Figure 63
3. Coil post
Connecting the Lithium Battery Pack
63). If 1 or more posts do not have system voltage
Connecting the Lithium Battery Pack
Connecting the Lithium Battery Pack
Page 5–38
(Figure 63).
Greensmaster ® eFlex 1021
20248SL Rev A