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Groundsmaster 3505--DPage 5 -- 20Electrical System
Glow Controller
The controller is located under the right, lower corner of
the instrument panel.
NOTE: Refer to Chapter 8 -- Electrical Diagrams when
troubleshooting the glow controller.
Controller Operation
1. When the ignition switch is placed in the RUN posi-
tion, the controller energizes the glow plugs and lights
up the glow lamp for 10 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 lamp will not light.
3. When the ignition switch is released from START to
RUN, the glow plugs will de--energize and the glow lamp
will remain off.
Controller Checks
1. Make sure there is power from the battery.
2. Disconnect electrical connector to the fuel stop sole-
noid to prevent the engine from starting.
3. Place ignition switch in the RUN position. Verify the
following while in the RUN position:
A. Glow indicator lamp is on.
B. Glow relay is energized.
C. Glow plugs are energized.
D. Glow indicator lamp goes out and glow plugs de--
energize after 10 seconds.
4. Place ignition switch in the START position. Verify
the following while in the START position:
A. Glow indicator lamp is out.
B. Glow relay is energized.
C. Glow plugs are energized.
D. Power exists at terminal 1 of the glow controller.
NOTE: Ifthere is no power toterminal 1 of theglow con-
troller, verify continuity of the circuitry from the ignition
switch to the controller and perform Step 4 again (see
Chapter 8 -- Electrical Diagrams).
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 -- Elec-
trical Diagrams).
B. Verify continuity of the circuitry from the battery to
ignition switch, glow controller, glow lamp,glow relay
and ground (see Chapter 8 -- Electrical Diagrams).
C. Replace parts as necessary.
6. Connect electrical connector to the fuel stop sole-
noid.
1. Glow controller end view
2. Top view
3. Side view
Figure 27
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