LAUNCH Injector Cleaner & Tester User’s Manual
12
replacement.
I Replacing filter
The equipment filter has been fixed behind the
main unit, if you want exchange it you must
remove the back board and loose the
clamp,
take the filter out and exchange a new one.
Tlamp
Filter
Fig.11
I Replacing fuel pump filter
The fuel pump filter has been fixed in the
pump bottom, if you want exchange it you
must remove the back board and remove the
s
ealing cover for fuel pump then take out fuel pump
sleeve, pull out the pump filter and exchange a new
one.
Fig.12
1-pump; 2- Sealing cover for fuel pump; 3- Fuel pump sleeve;
4-Pump filter; 5-
Cross bulged screw; 6-Tuel tank.
3. Connection Diagram of Driving Board
Fig.13
Description:
No. Part Name No. Part Name
1 Insert piece for power supply marked “-” 8 Socket for solenoid valve control cable
2 Insert piece for fuel pump marked “-” 9 Relay for solenoid valve
3 Insert piece for fuel pump marked “+” 10 Fuse for solenoid valve
4 Insert piece for power supply marked “+” 11 Insert piece for power supply marked “+”
5 Socket for level switch 12 Socket for injector pulse signal cables
6 Power socket 13 Insert piece for power supply marked “-”
7 Extension socket
4. Troubleshooting & Precautions
Troubleshooting
1. The unit does not correspond when it is switched on.
Check the fuse at lower right side of the unit and replace
it (AC 250V/5A) if it is damaged or broken.
2. There is leakage in the fuel distributor coupler.
Check the o-rings and replace it if it is damaged or
unfitted. Do not tighten the two riffle screws too tightly;
otherwise, it may cause leakage.
3. The fuel pressure drops slowly.
The fuel pressure can not drop to zero within 1～2
minutes, slightly turn the overflow valve with inner
hexagonal spanner counterclockwise.
4. The buzzer rings continually when there is no fuel
pressure.
The machine has fuel-lack warning function and it will
ring when the liquid in the fuel tank is lack, and then
automatically switch off the fuel pump and injectors and
returns to the stop state. Supply the detergent or test
liquid to stop ringing. At this time, pressing [RUN] key is
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