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Perkins 4012 - Tachometer and Hour Counter; Three Position Keyswitch; Fuse Holder; Two Point Exhaust Temperature Gauge (Optional)

Perkins 4012
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3
24 User’s Handbook, TSL 4186E, Issue 2
4012/16 Diesel
Tachometer and hour counter (E)
The electrically operated tachometer/hour counter shows the speed of the engine and the actual operating
hours the engine has run.
Three position keyswitch (F)
The hand operated keyswitch with switch lock is moved by a separate key to the following positions:
z Engine Off (F1)
z Engine Running (F2)
z Engine Start (F3)
Fuse holder (G)
To protect the instrument panel a 2 amp fuse is fitted. To remove the fuse unscrew the holder (G1) and
withdraw the fuse (G2).
Two point exhaust temperature gauge (H) (Optional)
The two point gauge measures the exhaust temperature of both banks after the turbochargers.
To switch the reading from one bank to the other operate the switch on the face of the gauge (H1).

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