RING-BACKUP 2J7767 - Caterpillar

Check the engine crankcase oil level. Maintain the oil level between the "ADD" and "FULL" marks on the "ENGINE STOPPED" side of the oil level gauge.
If necessary, perform minor adjustments. Repair any leaks and tighten loose bolts.
Note the service hour reading. Perform the maintenance that is scheduled in this Operation and Maintenance Manual, "Maintenance Interval Schedule" (Maintenance Section).
Only use antifreeze/coolant mixtures recommended in the Refill Capacities and Recommendations section of this manual. Failure to do so can cause engine damage.
Allow the engine to cool. Check the coolant level.
If freezing temperatures are expected, check the coolant for protection against freezing. The cooling system must be protected against freezing to the lowest expected outside temperature. Add the proper coolant/water mixture, if necessary.
Perform all required periodic maintenance on all driven equipment. Refer to the instructions that are provided by the OEM of the driven equipment.Aftertreatment Purge Cycle
Note: Air supply must remain active while the system purges.Under certain conditions the aftertreatment control system will run the DEF dosing system through a DEF purging cycle. This purge cycle will drain the AUS/DEF line between the dosing cabinet and the DEF injector. The purge cycle is designed to protect the AUS/DEF system, and to prevent the AUS/DEF from freezing. The purge cycle also protects engine exhaust hardware from AUS/DEF leaking from the DEF injector. The system will enter purge mode when the engine speed has dropped below a set threshold. The system will also enter a purge cycle if certain codes are logged during operation.During purge cycle, the AUS/DEF return valve on the AUS/DEF manifold will open and the dosing pump is turned off. The purge cycle will allow the air pressure in the line to force remaining AUS/DEF in the nozzle/line back to the tank inside the dosing cabinet. The purge cycle is a time-based event. The event should take less than 2 minutes.Note: If DC power is turned off before the purge cycle has been completed, the system will display a 3362-31: Aftertreatment #1 DEF Dosing Unit Input Lines upon start up.Shut down Procedure For the Oil Mist Detector
If a shutdown occurs due to excessive oil mist, use the following procedure.Note: Instructions from the Service Manual, "Disassembly and Assembly" module will be necessary in order to perform this procedure.
After the shutdown, inspect the control system for other alarm conditions. Compare the timing of the shutdown to the activation of the alarm. Ensure that the shutdown was initiated by the oil mist detector.
Inform the master engineer that the engine is unavailable.
Inspect the display of the oil mist detector in order to ensure that the shutdown is genuine. The green "Ready" indicator is OFF and the red "Alarm" indicator is FLASHING. Inspect the display for other faults.
After verifying the cause of the shutdown, shut off the air supply to the starting motor. This procedure will prevent accidental starting.
Open the cylinder pressure valves (Kiene valves) for all of the cylinders.
Guards must be in place prior to