Electric Tachometer
Usage:
3N7288 (Faria No. B-1594-2); Use with 3N4430 Sending Unit.
Sending unit turns at 1/2 engine speed.
Range ... 0 to 2500 rpm
Check at normal engine operating speed.
Minimum amount of adjustment (scale reading) ... ± 5%
Maximum external circuit resistance ... 20 ohms
Maximum temperature rating ... 180°F(82°C)
(1) Adjustment screw.
(2) Sealed cap.
(3) Rubber washer.
Caterpillar Information System:
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