JLG 1850SJ Operation And Safety Manual page 53

12. Machine Safety System Override (MSSO) (CE
Only)
Provides emergency override of function
controls that are locked out as in the event
of Load Sense System activation.
13. Swing
Provides 360 degrees continuous
turntable rotation.
14. Main Telescope
Provides extension and retraction
of the main boom.
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SECTION 3 - MACHINE CONTROLS AND INDICATORS
15. Boom Control System Test Button
The push button is used to test the boom con-
trol system and confirm that it is working
properly.
16. Selective Catalyst Reduction (SCR) Button
The Selective Catalyst Reduction (SCR) push
button is used to initiate the Standstill Clean-
ing mode.
– JLG Lift – 3-9