Indicator Lights - Toro Reelmaster 3550-D Preliminary Service Manual

Indicator Lights

Glow Plug Indicator Light
The glow plug light should come on when the ignition
switch is placed in ON/PREHEAT prior to placing the
ignition switch in START. The light should stay lit for
approximately seven (7) seconds while the ignition
switch is left in ON.
High Temperature Warning Light
If the engine coolant temperature rises to approximately
o o
220 F (105 C), the high temperature light should come
on and the PTO (cutting units) will disengage.
To test the high temperature shutdown light and circuit
wiring, start the engine and ground the blue wire at-
tached to the temperature sender attached to water
flange on engine. Warning light should illuminate.
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.
Also, it should light with the engine running if the engine
oil pressure drops below 7 PSI (0.5 kg/cm
To test the oil pressure light and circuit wiring, ground the
gray wire attached to oil pressure switch located on right
side of engine near the starter motor. Turn ignition
switch to ON; the oil pressure light should illuminate indi-
cating correct operation of the electrical wiring to the oil
pressure switch.
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 circuit while the en-
gine is running.
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
1. Glow plug indicator
2. High temp warning
3
).
2
4
1. Glow plug indicator
2. High temp warning
3. Engine oil pressure
Page 5 - - 18
3
4
Figure 17
3. Engine oil pressure
4. Charge indicator
5
1B 1A (+)
2B 2A (+)
Figure 18
4. Charge indicator
5. Warning light back
Reelmaster 3550--D
2
1
2
1