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Groundsmaster 4500--D/4700--D Page 5 -- 25 Electrical System
Hour Meter
The hour meter is located on the outside of the console
arm.
1. Connectthe positive(+) terminalof a12 VDCsource
to the positive (+) terminal of the hour meter.
2. Connect the negative (--) terminal of the voltage
source to the other terminal of the hour meter.
3. The hour meter should move a 1/10 of an hour in six
minutes.
4. Disconnect voltage source from the hour meter.
Figure 32
QUARTZ
Hobbs
HOURS
1
0000
1
10
+
BACK
Temperature Gauge
The temperature gauge on the control panel indicates
engine coolant temperature level during machine op-
eration (Fig. 33). The changing resistance of the engine
temperature sender signals the temperature gauge.
The temperature gauge should display the first green
segment when the ignition switch is turned to ON. The
first yellow segment on the gauge should display when
engine coolant temperature is approximately 212
o
F
(100
o
C).
Whenenginecoolanttemperaturerises toapproximate-
ly221
o
F(105
o
C),thetemperaturegauge shoulddisplay
the first red segment.
1. Console arm
2. Temperature gauge
3. High temp indicator
Figure 33
1
2
3
Electrical
System