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Instrument Panel - Mech. Cont. “270” Engines
OURGP11,000018E –19–27JUL06–1/2
Instrument Panel (Earlier 4.5 L “270”
Engines)
RG6574A –UN–07JAN03
Instrument Panel and Gauges (Earlier 4.5 L “270” Engines)
A—Tachometer with Hourmeter
B—Coolant Temperature Gauge
C—Oil Pressure Gauge
D—Pre-Heat Indicator Lamp
E—Charge Indicator Lamp
F—Oil Pressure Indicator Lamp
G—Coolant Temperature Indicator Lamp
H—Key Switch
All controls and gauges are optional equipment for John
Deere 4.5 L suffix “270” OEM Engines. They may be
provided by the equipment manufacturer instead of John
Deere.
IMPORTANT: Any time an electric gauge or meter
does not register correctly, replace it
with a new one. Do not attempt to repair
it.
Following is a brief description of the components on a
basic instrument (gauge) panel:
A—Tachometer with Hourmeter - The optional
tachometer with hourmeter indicates engine speed in
revolutions per minute (rpm) and shows the operating
hours of the engine while key switch is in the “ON”
position. The hour meter should be used as a guide for
scheduling periodic service.
B—Coolant Temperature Gauge - The coolant
temperature gauge indicates the engine coolant
temperature. It is connected to a warning lamp to warn
the operator if coolant temperature rises above the preset,
safe operating temperature.
C—Oil Pressure Gauge - The oil pressure gauge
indicates engine oil pressure. It is connected to a warning
lamp to warn the operator if engine oil pressure falls
below a safe operating pressure.
D—Pre-Heat Indicator Lamp - This indicator lamp is
initially turned on when the key switch is turned to the
“HEAT” position to activate the preheater for cold weather
starting. Lamp is connected to a timer that turns the lamp
off after 15 seconds when the key switch is held at
“HEAT” position. When the lamp goes out, start the
engine.
E—Charge Indicator Lamp - Indicates whether the
charging circuit is adequately replacing battery voltage as
it is used by the electrical system. If the lamp is lit while
the engine is running above 1300 rpm, stop engine
immediately and check charging circuit.
18-1
080706
PN=95
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