Launch CNC-603A User Manual page 17

LAUNCH
1- Fuel-return connector; 2- Fuel-return hose from engine; 3-Fuel-inlet hose to engine
5.6.2 Line Connection
There are two cases for the line connection: one is the connection with fuel-return hose and the other is the
connection without the fuel-return hose.
Connection with fuel-return hose
1) Disconnect the fuel supply hoses (C, D) and fuel return hoses (A, B) of the engine fuel system (when
disconnecting the fuel line connectors, cover them with towels). Choose proper connectors and connect them
to the B end and C end separately, and then connect the other ends to corresponding return hose and outlet
hose of the device. See Figure 5.14.
2) Connect the two other disconnected ends (A, D) with a proper hose, or remove the fuel pump fuse, or
disconnect the power cable of engine fuel pump.
1-CNC-603A Injector Cleaner & Tester; 2-Engine; 3- Fuel-return hose from engine; 4- Fuel-inlet hose to engine;
5-Auto filter; 6-Engine fuel supply hose; 7-Engine fuel return hose; 8-Fuel pump; 9-Fuel tank
Connection without fuel-return hose
1) Disconnect the fuel supply hoses (E, F) of the engine fuel system (when disconnecting the fuel line
connectors, cover them with towels), and then choose a suitable connector, connect it to the E end and
reconnect the fuel outlet hose of the device. Hang the fuel return hose. See Figure 5.15.
2) Block the other end of the disconnected end (F) with a stopper (for fuel pump with fuel return function only)
or remove the fuse of fuel pump or disconnect the power cable of engine fuel pump.
Setting interface
Figure 5.13 Installation diagram
to 2 of fig. 5.14
to 3 of fig. 5.14
Figure 5.14 Line Connection 1
CNC-603A Injector Cleaner & Tester User Manual
Timing interface
14