JLG 544D-10 Operation & Safety Manual page 38

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Section 3 - Controls and Indicators
Cummins Engine
12. Park Brake Indicator: See page 3-6 for details.
13. 4-in-1 Gauge:
e. Engine Coolant Temperature Gauge
f. Engine Oil Pressure Gauge
g. Fuel Gauge
h. Voltmeter indicates alternator output and battery condition.
14. Heater Switch (if equipped): See page 3-12 for details.
15. Diagnostic Indicator: Illuminates when diagnostic system detects an engine
fault.
16. Hourmeter: Indicates total time of engine operation in hours and tenths of
hours.
17. 4x2/4x4 Switch: Engages and disengages rear wheel drive motors. Rear drive
motors are engaged for four wheel drive.
18. Park Brake Switch: See page 3-6 for details.
19. Auxiliary Electrics Switches (if equipped): Enables functions of attachments that
require auxiliary electrics. See Section 5 - Attachments for approved
attachments and control instructions.
20. 4x4 Indicator: Illuminates when four-wheel drive is engaged. The indicator will
not illuminate when park brake is applied.
21. Engine Shutdown Indicator: Illuminates to indicate an engine fault and/or a
parameter is outside the acceptable range. Engine may derate and shutdown.
22. Alternator Indicator: Illuminates when alternator is not charging.
23. Preheat Indicator: Illuminates with ignition in "RUN" position. Light goes out
when start temperature is reached. At temperatures below 32°F (0°C), do not
start until engine is preheated.
3-4
19
16 13 14
15 23 17
F
100
FUEL
OIL
E
0
240
16
TEMP
VOLTS
-
+
100
10
DIAG.LIGHT
WAIT-TO-START
HEATER
LIGHT
ON
OFF
PARK
DRIVE
ENG.
BRAKE
SHUTDOWN
LIGHT
4X4
ON
1/10
OFF
4X2
ALT
18
12
22
21
20
31200172

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