Instruments/Controls
32
4812325557EN
2018-02-19
Exhaust System Cleaning Lamps
High Exhaust System Temperature (HEST) Lamp
May illuminate due to higher-than normal exhaust temperature during
Exhaust System Cleaning. Operator should ensure that the exhaust pipe
outlet is not directed at any flammable or combustible surfaces.
Exhaust System Cleaning Lamp
Illuminates when the exhaust system is unable to complete an
automatic Exhaust System Cleaning event. Operator should ensure the
Exhaust System Cleaning Switch is not in the “STOP” position and
continue working until there is an opportunity, such as at the end of the
work day or shift, to complete a stationary Exhaust System Cleaning.
Exhaust System Cleaning Lamp With Check Engine Lamp
If an Exhaust System Cleaning is not performed in a timely manner after
the Exhaust System Cleaning Lamp is illuminated, the Check Engine
Lamp will illuminate and engine power will be significantly reduced. Park
the equipment when safe to do so, and press the Exhaust System
Cleaning Start Switch. Once the cleaning is complete, full engine power
will be restored.
Exhaust System Cleaning Lamp
Flashes when a stationary Exhaust System Cleaning event is initiated
using the Exhaust System Cleaning Start Switch. This lamp will continue
to flash until the stationary cleaning event is complete. Once the lamp
turns off, the operator can resume normal work activity.
Exhaust System Cleaning Stop Lamp
Illuminates when the Exhaust System Cleaning Switch is in the “STOP”
position, preventing a cleaning event. This switch should be used only
when high exhaust temperatures present a hazard. Excessive use of the
Exhaust System Cleaning Switch in the “STOP” position will result in the
need for more frequent stationary exhaust cleaning events.
