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Reelmaster 3550−D Page 5 − 43 Electrical System
Indicator Lights
1. Diagnostic light
2. Glow plug indicator
3. High temp warning
4. Engine oil pressure
5. Charge indicator
Figure 46
5
2
3
4
1
Diagnostic Light
When the ignition switch is moved to the RUN position
and the machine electrical system is functioning pro-
perly, the diagnostic light will be illuminated for approxi-
mately three (3) seconds and then will turn off. The light
should remain off during normal machine operation.
If the machine TEC controller detects an electrical sys-
tem malfunction (fault) during machine operation, the
diagnostic light will flash rapidly (see Diagnostic Light in
the chapter for additional information).
Glow Plug Indicator Light
The glow plug light should come on when the ignition
switch is placed in RUN prior to placing the ignition
switch in START. The light should stay lit for approxi-
mately six (6) seconds while the ignition switch is left in
ON.
The glow plug indicator light is controlled by the TEC
controller (see Glow Relay in this chapter for additional
information).
High Temperature Warning Light
If the engine coolant temperature rises to approximately
220°F (105°C), the high temperature light should come
on and the cutting units will disengage. The high temper-
ature light will remain on and the cutting units will remain
inactive until the engine temperature drops below 220°F
(105°C).
If the engine temperature rises above 240°F (116°C) for
more than 10 seconds the engine will shutdown.
To test the high temperature shutdown light and circuit
wiring, start the engine and ground the blue wire at-
tached to the temperature sender at the engine thermo-
stat housing. Warning light should illuminate.
The high temperature warning light is controlled by the
TEC controller (see Engine Temperature Sensor in this
chapter for additional information).
Figure 47
1. Glow plug indicator
2. High temp warning
3. Engine oil pressure
4. Charge indicator
5. Warning light back
1A (+
)
2A (+
)
2B
1B
4
5
3
1
2
Engine Oil Pressure Light
The oil pressure light should come on when the ignition
switch is in the ON position with the engine not running.
The oil pressure light should come on with the engine
running if the engine oil pressure drops to an unsafe
level. The engine oil pressure light is controlled by the
oil pressure switch (see Oil Pressure Switch in this
chapter for additional information).
IMPORTANT: If the oil pressure indicator light is il-
luminated with the engine running, shut off the en-
gine immediately.
Charge Indicator Light
The charge indicator light should come on when the igni-
tion switch is in ON with the engine not running or with
an improperly operating charging system while the en-
gine is running. The charge indicator light is controlled
by the TEC controller. Test the charging system if neces-
sary (see Charging System Test in this chapter).
Testing Indicator Lights
1. Apply 12 VDC to terminals 1A and 2A.
2. Ground terminals 1B and 2B.
3. Both indicator lights should light.
Electrical
System