INSTRUMENTATION SERVICE MANUAL NUMBER 22
Page 4D-10 90-860074--1 FEBRUARY 2002
VOLT METER GAUGE
1. Remove cables from battery and fully charge battery.
2. Remove wires from back of gauge.
3. Connect negative (–) jumper lead from battery to gauge terminal G (GND).
4. Connect positive (+) jumper lead from a 12 Volt power source, or battery, to gauge
terminal I or +12 V.
72750
a
b
a-Volt Meter
b-12 Volt Power Source
5. Check gauge reading; if not indicating battery voltage, as shown, replace gauge.
73290
a
Typical
a- Needle Indicating Battery Voltage
TACHOMETER
1. If the gauge is not accurate, be certain the switch on the back of the tachometer is set
properly. Refer to Special Information - Tachometer.
2. Replace if not within specifications.
Tachometer Type
Allowable Range
5000 rpm maximum + 100 rpm
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