5 - OPERATING INSTRUCTIONS
92
DIGITAL TACHOMETER
High Idle Speed
At normal operating temperature engine RPM must
be in the range of 2420 to 2510 RPM on the engine
tachometer (1) for the best performance.
High Idle with separator engaged - 2410 RPM. High
Idle with separator disengaged - 2510 RPM.
If the engine RPM falls below the engine alarm
threshold set point and the Feeder or Rotor or Fan
are ON, the audible alarm will be pulsed ON and
OFF and the ENGINE SPEED shall flash. If the
FEEDER ENABLE switch is OFF the Engine Speed
Alarm function is disabled.
Adjusting Engine Alarm
The engine alarm is set to sound when the engine
RPM drops below a speed of 2300 RPM. The alarm
can be adjusted to sound when the engine RPM
drops to a speed as low as 1900.
Adjusting Speed Calibration
The digital tachometer can be calibrated for the size
of the drive wheels being used. This adjustment must
be made for the digital tachometer to show the
correct vehicle speed. See Instrument Calibration in
this manual.
552L94
1
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