Advance SC901 handleiding
Handleiding
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20Service Manual – SC901 20 - Wheel System, Traction
1-4 Low Battery Voltage
Description .Battery voltage too low
Setting
Conditions
Battery voltage below 17 volts
When Monitored
Always
Possible Causes
• Faulty battery
• Poor connection
Initial Action Make sure the batteries are fully charged
Troubleshooting Steps
If the actual battery voltage is not low, systematically check voltages from the drive controller, back to the
batteries to identify the point of poor connection.
1. Turn the vacuum motor on to load the system.
2. Check the negative power circuit.
a. Place the positive voltage probe directly on the battery positive terminal.
b. Place to negative voltage probe on the B- contact at the drive controller.
– If the voltage is 36 volts, skip to step 3.
– If the voltage is low, continue.
c. Move the negative voltage probe to the Main Grounding Lug in the electrical bay.
– If the voltage is 36 volts, repair or replace the connections/wire leading to the drive controller.
– If the voltage is low, check the connections at the Main Ground lug and main battery terminal.
3. Check the positive power circuit.
a. Place the negative voltage probe at either the battery terminal or main ground lug, whichever is
more convenient. (Both were tested above)
b. Place the positive voltage probe at the B+ contact of the drive controller.
– If the voltage is 36 volts and the error persists, conrm the voltage directly at the drive controller,
and if persistent, replace the drive controller.
– If the voltage is low, continue.
c. Move the positive voltage probe to each of the circuit breaker CB1 terminals.
– If both readings are 36 volts, repair or replace the wire between the circuit breaker and drive
controller.
– If one reading is 36 volts and the other is low, replace the circuit breaker.
– If both readings are low, continue.
d. Move the positive voltage probe to the main terminal of the vacuum contactor (the side with multiple
wires).
– If the voltage is 36 volts, repair or replace the wire between the contactor and CB1.
– If the voltage is low, continue.
e. Move the positive voltage probe to the main terminal of the brush contactor.
– If the voltage is 36 volts, clean the copper busbar and check that the lugs of the two relays are
securely tightened.
– If the voltage is low, repair or replace the wire between the main battery and the K2 contactor.
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Productinformatie
| Merk | Advance |
| Model | SC901 |
| Categorie | Boenmachine |
| Taal | Nederlands |
| Grootte | 46127 MB |
