RDG603A13
– Issue 19
Page 40 of 97
19. Control Panel
CAUTION
Shire engines are supplied with an engine control panel that shows RPM and hours run (the
Basic Panel does not have this fitted) and include warning lights and a warning buzzer. The
deluxe panels also have additional gauges for the water temp, oil pressure and battery
charging. The panels are designed to be splash proof and are correctly installed with the
gauges vertical. Do not install so that they remain out in the open, or cover up when not on
use.
The control panel engine tachometer is supplied already calibrated to measure correct engine
speed. If a new control panel, tachometer or alternative alternator is fitted, the tacho will
require re-calibrating.
Control Panel Calibration Procedure (not required if a Basic Panel is fitted):
Connect Control panel plug to engine wiring loom plug.
Turn ignition on (do not start engine).
Press and hold black button on rear of tacho until “H-“appears on the digital display at
the bottom of the tacho (on the front).
When pressing and holding the black button on rear of tacho, the value displayed will
increase / decrease until the button is released. Then when pressing again it will
increase / decrease in the other direction. Keep doing this until the digitally displayed
value on the bottom of tacho reaches the correct value, according to the type of
alternator (see below table). This must be set to the alternator with blue and black
wire connected to it.
Confirm settings to tacho meter reader.
An optical tachometer is required to check the reading.
Barrus Alternator (Amps)
Barrus Tacho reading
50
10.50
– 11.00
70
15.00
50 and 70 (Twin Alts)
Only the 50 Amp Alternator requires calibration
Alternative or non-standard alternators will require calibrating and checking by trial and error,
with a hand held tacho until the engine speed and indicated tachometer speed are the same.
