Service Manual

Fault
Number
Fault Title
Controller
Affected
Fault Condition/
Circuit
Description
Additional Notes
Service Actions
(Repair or replace any
worn or damaged parts)
84
48V Key Switch
High Voltage –
Cutting Reel Motor
3
Cutting Reel
Motor Controller
Cutting reel motor 3
has detected that the
48 Vdc logic voltage
has exceeded the high
voltage limit. This fault
causes the cutting reel
motor to be disabled.
• For this fault, the term “key
switch” refers to the 48 Vdc
logic power circuit, not to the
ignition switch.
• All 48 Vdc devices are
connected to the same 48
Vdc bus. If this is a system
issue, the TEC-5002
combines all 6 of the 48V
Key Switch Overvolt faults
(faults 82 through 87) into a
single fault (fault 31).
1) Swap cutting reel motors
between cutting units. If the
fault moves with the motor to
the new location, replace the
motor.
2) If the fault remains at cutting
reel unit 3, inspect connectors
P40 and P41 at cutting reel
motor 1 for damage, corrosion,
debris, and proper alignment of
the pins inside the connectors.
3) With the engine off and the key
on, check for 48 Vdc at
connector P41.
4) Test connectors P40 and P41
for continuity in the main
harness and repair any worn or
damaged parts.
85
48V Key Switch
High Voltage –
Cutting Reel Motor
4
Cutting Reel
Motor Controller
Cutting reel motor 4
has detected that the
48 Vdc logic voltage
has exceeded the high
voltage limit. This fault
causes the cutting reel
motor to be disabled.
• For this fault, the term “key
switch” refers to the 48 Vdc
logic power circuit, not to the
ignition switch.
• All 48 Vdc devices are
connected to the same 48
Vdc bus. If this is a system
issue, the TEC-5002
combines all 6 of the 48V
Key Switch Overvolt faults
(faults 82 through 87) into a
single fault (fault 31).
1) Swap cutting reel motors
between cutting units. If the
fault moves with the motor to
the new location, replace the
motor.
2) If the fault remains at cutting
reel unit 4, inspect connectors
P48 and P49 at cutting reel
motor 1 for damage, corrosion,
debris, and proper alignment of
the pins inside the connectors.
3) With the engine off and the key
on, check for 48 Vdc at
connector P49.
4) Test connectors P48 and P49
for continuity in the main
harness and repair any worn or
damaged parts.
Reelmaster 5010-H Diagnostic Fault Code Quick Reference Table Page 23 of 38