MAHLE RTI DCS-1 - Manual (Page 2)

1998 and Newer Ford Power Stroke Engines
These engines have individual pumps on each injector rather than one central injector. These individual
injectors are fed with a conventional fuel pump. This pump is typically mounted along the frame rail
located under the front edge of the driver-side door.
Connect the DCS-1 as follows:
! Red hose from inlet of the fuel pump to port with red marking on the bottom of the DCS-1.
! Black hose from junction of the engine return line (by firewall) to the port with black marking on the
bottom of the DCS-1.
! The loop hose does not need to be connected.
The DCS-1 does not need to be pressurized as the cleaner will gravity feed.
10 Start the engine. Immediately open the Air Pressure Release Valve to release any
remaining pressure and allow gravity flow to continue.
11 Turn Power Switch on and turn Timer knob clockwise to set time.
12 Run engine at 1200 RPM.
13 The Timer will go to zero and a buzzer will sound, indicating the service is complete.
If the level of cleaner in the Tank goes low enough, the buzzer will sound to alert that
the process should be stopped soon or the engine will be starved for fuel.
14 Shut engine off when the desired amount of cleaner has been consumed.
15 Close the valve on the bottom of the DCS-1. Do not close this valve with the engine
running as this could cause a vacuum in the engine fuel supply line.
16 Disconnect red and black hoses and remove the DCS-1.
17 Remove adapters and the Loop Hose and reconnect the fuel tank to the engine.
18 Replace engine fuel filter.
19 Start engine and check for any leaks.
Follow manufacturer’s procedure for purging after a filter change if engine will not start.
MAINTENANCE
! The DCS-1 should be wiped clean after every use. Only a mild detergent soap should be used.
! Do not allow hoses to contact moving parts or hot surfaces during use.
! Periodically inspect and clean the two filters under the Fill Cap on the top of the DCS-1. These are
screen filters which can be lifted from the recessed holes as shown below.
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