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Air Bleeding by Priming Pump
In case air is not bled due to malfunction of the solenoid
fuel pump, operating the priming pump only can bleed air.
1. Check that fuel cock (1) on the bottom of the fuel tank is
opened.
2. Loosen air bleed plug (2) on the fuel main filter.
3. Supply fuel by reciprocating priming pump (3).
After no air bubbles are spouted through air bleed plug
(2), tighten air bleed plug (2).
4. After tightening air bleed plug (2), reciprocate priming
pump (3) approx. 150 strokes.
5. Wipe off any spilled fuel.
6. Start the engine. Check that no fuel leaks are present. If
the engine does not start, repeat the above procedures
from step 1.
Wrench size: 10 mm
If Air Mixed After Common Rail
In case air mixed in the fuel system due to lack of fuel and
the engine is difficult to start, release air by following the
procedure given below.
1. Bleed air until the engine supply pump entrance enough
according to the above-mentioned procedures.
2. Operate starter motor for long cranking within 20
seconds. If engine falls to start, return key switch to OFF.
Wait more than about 60 seconds, and then try again.
MAINTENANCE
3
7-56
1
3
M1U4-07-042
ZX135US-5B
MDAA-07-007
Main Filter
2
M1GR-07-010
M81U-07-030
ZX225US-5B,
225USLC-5B
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