Stationary Exhaust System Cleaning - JLG 642 Operation & Safety Manual

Stationary Exhaust System Cleaning

Selective Catalytic Reduction (SCR) Indicator (2) will illuminate when stationary exhaust
system cleaning is required.
1. Move telehandler to an area free of flammables and people that could be exposed to
hot exhaust.
2. Shift transmission to neutral, retract and lower boom and engage park brake.
3. When exhaust system cleaning begins, the HEST (1) and Do Not Turn Off Engine (3)
indicators will illuminate. Do not turn off engine.
4. Do not press accelerator pedal or other controls during exhaust system cleaning.
5. SCR indicator (2) flashes during cleaning. Stationary exhaust system cleaning takes
approximately 30 to 60 minutes.
Note: Stationary exhaust system cleaning will stop and may be incomplete if any
controls are inadvertently moved or activated. If stationary exhaust cleaning is
interrupted, HEST (1) and Do Not Turn Off Engine (3) indicators will turn off and SCR
Indicator (2) will stop blinking and illuminate solid. To restart stationary exhaust system
cleaning, depress service brake and disengage park brake. Return to step 1 and repeat
process.
6. Stationary exhaust system cleaning is complete after HEST, SCR and Do Not Turn Off
Engine indicators turn off.
EQUIPMENT DAMAGE. If exhaust system cleaning continually fails, SCR (2) and
System Distress (4) indicators will illuminate. Immediately bring machine to a stop and
perform stationary exhaust system cleaning. If exhaust system cleaning is not
completed a torque derate is initiated. Contact the local dealer.
31211031
3
STOP
OD1220
NOTICE
Section 4—Operation
4
OD1160
4-7