OPERATING CONTROLS AND PROCEDURES Exhaust System Cleaning Switch WARNING Extreme Heat Hazard! During the cleaning process the exhaust becomes very hot. Do not park the vehicle near objects that are flammable. Use caution near the exhaust tailpipe as it will also become very hot. The Exhaust System Cleaning Switch (8) (Figure 3-4) is located on the right side of the overhead control panel. This switch is a three position switch, Inhibit Cleaning/Permit Active Cleaning/Initiate Manual Cleaning. Center position enables clean to occur when required, or press this switch to force manual cleaning to begin immediately or to disable cleaning indefinitely: •
Manual Cleaning
•
Inhibit Cleaning
RT540E OPERATOR MANUAL To manually clean, set the crane parking brake, the crane transmission must be in neutral and have the brake and throttle pedals released. Refer to Exhaust System Cleaning (Tier 4 Only), page 7 for cleaning mode definitions and a description of when manual cleaning is needed. Set up a safe area around the crane’s exhaust; remove tools, rags, grease or any debris from the engine exhaust area. With the engine idling push the Cleaning Switch (8) to initiate manual cleaning. Within 5 seconds the engine should rev up to 1000 to 1400 rpm. The engine will continue to run at this speed for up to 45 minutes. As a warning, the light (1, Figure 3-5) above the exhaust pipe (2, Figure 3-5) will blink during exhaust system cleaning. Pressing brake or throttle pedal during cleaning or activating the Inhibit Cleaning Switch will interrupt the manual cleaning process. Make sure the crane and surrounding area are monitored during manual cleaning. If any unsafe condition occurs, shut off the engine immediately.
(7649-10)
(7649-11)
During this period the sound of the engine may change. When manual cleaning is complete the engine will return to it’s normal idle speed.
1
2
8522
3-6
FIGURE 3-5
Published 01-15-2016, Control # 526-01
