Fault 97: 48 V Bus Low Voltage - Starter/Generator - Toro Greensmaster TriFlex 3300 Manual

Fault 97: 48 V Bus Low Voltage –
Starter/Generator
Important:
For this fault, the term "key switch" refers to the 48 V logic power circuit, not to the
ignition switch.
Note:
When any individual cutting reel motor is shut off due to a fault, the primary TEC shuts off the other 4
cutting reel motors.
Note:
If multiple machine faults are reported within a few seconds, troubleshooting should begin with the
first cutting reel motor to report a fault.
InfoCenter Display:
Fault Description
This fault is reported when the voltage measured in the 48 V system drops below 36 volts. The PTO and the
generator will be disabled while this fault is active.
Circuit Description
All 3 cutting reel motors share the 48 V power with the motor/generator.
Recommended Service Actions
Step 1: Verify that the fault repeats.
1. Clear the system faults from the InfoCenter. Refer to
2. Operate the machine.
Pass The fault did not repeat. Go to
Note:
If the fault does not repeat, an isolated event has occurred.
Fail The fault repeated. Go to Step 2.
Step 2: Test the 48 V battery voltage.
1. Remove and test each of the batteries in the 48 V array.
2. Follow the procedure outlined in Chapter 6 of the Greensmaster TriFlex 3320/3420 Service Manual.
Pass All of the 12 V batteries in the 48 V battery array tested good. Go to Step 3.
Fail One or all of the 12 V batteries in the 48 V battery array failed testing. Replace all 4 of the 12 V
batteries.
Note:
Replace all of the 12 V batteries at the same time, even if only one of them fails.
_____FAULT #97____
GENERATOR - 48
V POWER BUS
UNDER V
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
238
19).
and follow the steps listed.