Toro Reelmaster 5010-H Diagnostic Manual page 249

Step 7: Inspect the wiring for cutting unit 5.
1. Go to Preparing for Troubleshooting and/or Testing (page 22)
2. Unplug the 48 Vdc battery disconnect to prevent unexpected cutting unit operation. Refer to
and Disconnecting the 48 Vdc Battery System (page
3. Disconnect main harness connectors P44 and P45 from the cutting reel motor cable connectors mounted
on the traction unit.
4. Inspect the 2 cutting reel motor cable connectors and the 2 main harness connectors for damage,
corrosion, debris, and proper alignment of the pins inside the connectors.
Pass The wiring inspection passed. Go to Step 8.
Fail One or more of the inspection checks failed. Repair or replace the worn or damaged parts. Go to
Returning the Machine to Service (page 22)
Step 8: Measure 48 Vdc power in main harness connectors P44 and
P45.
Note:
Connector diagrams are available in Step 9.
1. Verify that the engine is shut off.
2. Disconnect main harness connectors P44 and P45 from the cutting reel motor cable connectors.
3. Rotate the ignition key to the O
4. Measure the voltage between pins 1 and 2 of connector P45. The reading should be 48 Vdc.
5. Measure the voltage between P44 pin 1 and P45 pin 2. The reading should be 48 Vdc.
6. Rotate the ignition key to the O
Pass
The voltage readings were good. Go to Step 10.
Fail The voltage readings were not good. Go to Step 9.
Step 9: Test the power and ground wiring in main harness connectors
P44 and P45.
These are diagnostic steps to help isolate problems identified in Step 8. Use a multimeter to test the resistance
between the following pairs of locations:
Location Harness
1 Main
2 Main
position.
N
position.
FF
Connector Pin
P45 1
P37 3
and follow the steps listed.
19).
and follow the steps listed.
Wire Expected
Color Reading
Red
Less than
2 ohms
Red
249
Connecting
Connector Graphic