6-13Z Master 597 Diesel Series Service Manual
6
Fig 366 DSC-2545
The glow plug controller is a timer. When voltage is
applied to the glow plug controller, it provides the ground
for the glow plug relay coil, which activates, supplying
current to the engine glow plugs. This is maintained for
approximately 10 seconds in the ignition RUN position.
In the ignition START position the glow plug controller is
continuously on until the ignition switch moves back to
the RUN position.
Fig 365 DSC-2541
The glow plug controller is located under the seat,
behind the battery, fastened to the frame (Fig. 365).
Location
Testing
The glow plug timer (Fig. 366) can be tested as an
individual component. Refer to the next page for proper
testing procedures.
How It Works
ELECTRICAL
Controls the amount of time that voltage is sent to the
glow plugs. The glow plug controller has an internal
timer.
Purpose
GLOW PLUG CONTROLLER
A
C
D
B
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