MotorVac CarbonClean Dual System MCS 352 - Manual (Page 40)

Diesel Cleaning Procedures
1. Verify that Mixture, Priming, and Diesel Setup Procedures above have been
completed before continuing.
2. Press SERVICE SELECTOR SWITCH to DIESEL FUEL SYSTEM and press the ON/OFF
switch on after turning TIMER past five minutes. NOTE: Alarm will sound until pump
starts.
3. Press and hold the START/RUN switch. The unit will start and the pressure should rise. The
pressure can be checked by observing the FUEL PRESSURE gauge. Check all connections
for leaks and correct as necessary.
4. Once the pressure has stabilized, release the START/RUN switch . Then start the engine.
Check for fuel leaks and correct as necessary.
5. Once the unit and engine are running, the run time can be adjusted. The default run time is 60
minutes.
Soak Mode
Use of the Soak Mode Cycle improves fuel system cleaning results, but it may be
bypassed if a shorter service is desired.
1. After 20 minutes of operation or half of the run time, whichever is less; a Soak Mode can be
initialized.
2. Shut down engine. Then press off the unit’s ON/OFF switch. NOTE: This will shut
down the pump and fuel supply to engine, so it is very important that engine be shut
down first.
3. Let fuel mixture soak in engine for at least 15 minutes. Turn TIMER past five minutes. Turn
the ON/OFF switch on. Press and hold the START/RUN switch to restart the unit and build
pressure.
4. Continue on with the cleaning mode. Reset the TIMER to the time last shown before the
Soak Mode was initialized. Restart the engine. The cleaning cycle will continue for the
remaining run time.
NOTE
Additional Soak Cycles can be initiated by repeating
steps 2 through 4 as many times as needed.