Contactor Panel; Theory Of Operation; Maintenance; Troubleshooting - prime mover smx45 Master Service Manual

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Contactor Panel

1. Theory of Operation

The main contactor (K10) controls the transmission of battery
power to the drive motor.

2. Maintenance

Visually inspect the contactors for any signs of burning or
physical damage.

3. Troubleshooting

3.1. Resistance Testing

1. Press red OFF button "O" on the keypad. Depress
main ON/OFF switch to the OFF position.
2. Remove truck cover(s) [see
3. Disconnect the wires from the coil contactor.
4. Connect one coil lead of ohmmeter to the coil lead
from contactor. Connect the other lead to the lead
from the contactor.
5. The reading should be between 20 and 40 ohms. If
resistance is outside that range, replace contactor.
Master Service Manual 2004-03-10
F-code Section
PT S5.6
Contactor Panel
Version no T-code
000 SMX
page 84.]
C-code
5436
235