7
DFS 910 Fuel System Operation Manual
Commercial Diesel Engines
Fill the two fluid tanks on the DFS 910 machine with approved
products.
Use Only Induction Fluid DES 928 EGR (2 lit/qt and 4 lit/qt for
larger Diesel engines). Then you
Must
add 2 lit/qt of DES 929 EGR
RINSE to the machine and process it through the engine on both the
intake and exhaust side of the system.
Approved fuel rail cleaner DES 925 (3 lit/qt for larger Diesel
engines)
Caution: Do not mix fluids this could result in Engine failure
•
Disconnect fuel supply line before the diesel fuel pump
•
Connect the required adapter then connect the supply line from the DFS machine
(blue hose)
•
Disconnect the return line, which returns the fuel back to the fuel tank
•
Connect the required adapter- then connect the return line from the
DFS Machine (black hose)
•
Fill the machine with fuel rail fluid pour the fluid into the tank with BLUE cap
•
Connect 12 volt power supply to the vehicle’s battery. The new fluid light will
come on. (NOTE: Before connecting power cord to battery, make sure the
power switch is turned off)
•
Turn on the pump switch, the pump will start circulating the fuel rail cleaning
fuel
•
Check for leaks on vehicle’s return and supply connectors
•
Set the pressure between 6 – 15 psi with the flow valve on the machine
(+ to increase - to decrease)
•
If desired Hook up Induction Adapters and fill the tank with the aluminum cap
marked Air Induction Cleaner Only
•
Start the engine leave at idle (NOTE: If the engine fails to start, bleeding the
fuel system may be necessary) When 15 – 20 minutes are up the cleaning fuel
should almost be depleted the light will go off
•
When the complete service is finished turn vehicle off
•
Turn pump switch off
•
Disconnect the power cord from the battery
•
Uncouple the quick connectors from the hose adapters
•
Disconnect hose adapters from Vehicles supply and return lines
•
Reconnect the vehicle’s supply and return lines
