JLG 1850SJ Operator Manual - Manual (Page 50)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-6 – JLG Lift – 3121618
11. Swing
Provides 360 degrees continuous
turntable rotation.
12. Main Telescope
Provides extension and retraction
of the main boom.
13. Boom Control System Test Button
The push button is used to test the
boom control system and confirm
that it is working properly.
Ground Control Indicator Panel
(See Figure 3-2., Ground Control Indicator Panel)
1. No Alternator Output Indicator
Indicates a problem in the charging circuit,
and service is required.
2. Low Engine Oil Pressure Indicator
Indicates that engine oil pressure is below
normal and service is required.
3. High Engine Temperature Indicator
Indicates that engine coolant temperature
is abnormally high and service is required.