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Glow Plug Indicator Light
BACK OF GAUGE
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.
A
B
F
E
A B C D E F
Figure 47
SCHEMATIC
B
COOLANT
TEMP
COOLANT
OIL
BATTERY
LOW
PRESSURE
C
A
B
E
IN
FUEL
GLOW
WATER
D
D
E
F
F
A
Figure 48
Electrical
System
Groundsmaster 3000/3000–D
Page 6 – 27
Electrical System
C