Glow Plug Controller - Toro Multi Pro 5800 Service Manual

Glow Plug Controller

The glow plug controller is attached to the electric panel
under the operator seat.
NOTE: Refer to see Chapter 8 -- Foldout Drawings
when troubleshooting the glow plug controller.
Controller Operation
1. When the ignition switch is placed in the ON position,
the controller energizes the glow plugs and illuminates
the glow plug indicator light for approximately six (6)
seconds.
2. When the ignition switch is held in the START posi-
tion, the glow plugs will energize while the switch is held
in START and the glow plug indicator light will not light.
3. When the ignition switch is released from START to
ON, the glow plugs will de--energize and the glow plug
indicator light will remain off.
Controller Checks
1. Make sure there is power from the battery.
2. Disconnect wire harness connector from the fuel
stop solenoid to prevent the engine from starting.
3. Place ignition switch in the ON position. Verify the fol-
lowing while the ignition switch is in the ON position:
A. Glow plug indicator light is on.
B. Glow relay is energized.
C. Glow plugs are energized.
D. Glow plug indicator light goes out and glow plugs
de--energize after approximately six (6) seconds.
4. Place ignition switch in the START position. Verify
the following while the ignition switch is in the START
position:
A. Glow plug indicator light is out.
B. Glow relay is energized.
C. Glow plugs are energized.
D. Power exists at terminal 1 of the glow controller.
NOTE: If there is no power to terminal 1 of the glow con-
troller, verify continuity of the circuitry from the ignition
switch to the controller and perform Step 4 again (see
Chapter 8 -- Foldout Drawings).
Electrical System
5. If any of the conditions in Step 3 are not met or power
to terminal 1 exists and any of the other conditions in
Step 4 are not met:
A. Verify continuity of the circuitry from the battery to
the glow relay and glow plugs (see Chapter 8 -- Fold-
out Drawings).
B. Verify continuity of the circuitry from the battery to
ignition switch, glow controller, glow plug indicator
light, glow relay and ground (see Chapter 8 -- Foldout
Drawings).
C. Repair or replace components as necessary.
6. When testing is complete, connect wire harness con-
nector to the fuel stop solenoid.
2
1. Front wire harness
1
VIOLET
ORANGE
PINK
1. Glow controller top view
Page 5 - - 26
Figure 38
2. Glow plug controller
CONTROLLER
CONNECTIONS
1 4 TEMP (not used)
START
LAMP 2 5 GLOW
6 GROUND
+12V 3
Figure 39
2. Controller end view
1
2
BLK/WHITE
BLACK
Multi Pro 5800