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Glow Plug Indicator Light
This light comes on when the glow control relay supplies
power to the glow plugs.
1. Disconnect wire clip and pin connector (pins 1 to 7)
from the pre/post heat relay.
2. Jumper from post # 8 (brass) on the glow control
relay to female receptor # 5 (green wire) on the pin con
nector.
3. The light should come on. Remove jumper from
relay post and pin connector.
4. Connect pin connector and wire clip to the glow con
trol relay.
Groundsmaster 3000/3000–D
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Page 6 – 27
BACK OF GAUGE
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Figure 47
SCHEMATIC
Figure 48
Electrical System
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