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American-Lincoln Technology
ATS 46/53 Troubleshooting Guide
HOUR METER CIRCUIT
Conditions necessary for circuit to work
1.
Battery Voltage
2.
Key switch on
3.
CB-4 closed
4.
M3 denergized (Oil pressure)
5.
Good ground on hour meter
Check voltage at (+) side of meter (Wire #14A), if no voltage check Terminal 87A on M3 (Wires 3A, 3B) on
back through CB-4 to the key switch.
HORN CIRCUIT
Conditions necessary for circuit to work
1.
Battery Voltage
2.
Horn switch depressed
3.
CB-2 closed
Check for voltage at horn (Wire #6), if no voltage, check horn switch (Wire #5), then CB-2 (Wires #1D, 1E) on
back to the battery.
12V BATTERY
3
3A,3D
3A,3B
14,14A
14A
14
7A,7B
1,1A,1D,9
M3
30
87A
4
KEY SWITCH
CB 4
15 AMP.
BAT.
12V BATTERY
5
6
1D,1E
CB -2
15 AMP.
HORN SW.
HORN
HOUR METER & HORN CIRCUITS (GAS & DIESEL)
T113
T114