Yanmar 4LHA-STZP Specifikace Strana 53

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Do not pour in a large amount of
blower wash at one time (pour it in
gradually) as this can damage the
blower blades and get water
hammer in the combustion chamber
leading to accidents.
[NOTICE]
(6) Washing the Turbocharger Blower
When engine speed seems sluggish or the
exhaust color poor, the blades of the turbocharg-
er blower may be dirty. Wash the blower in the
following manner.
Have ready blower wash (liquid detergent),
fresh water, and a small pitcher.
Blower Wash (4L)
Parts Code : 974500-00400
Remove the precleaner.
Put the clutch in neutral and run the engine
at high speed (25003000rpm).
Slowly pour approximately 50cc of blower
wash into the turbocharger suc tion inlet over a
period of about 10 seconds.
After about 3 minutes, pour in approximately
50cc of fresh water in the same manner over a
period of about 10 seconds.
After under load operating the engine for about
10 minutes, check the boost pressure and
power output. If there is no improvement
after washing the blower, repeat the washing
process several times.
Reattach the precleaner. If the precleaner
is excessively dirty, wash with detergent and
dry before reattaching. If the precleaner is
damaged, replace it.
If there is still no improvement consult your
local Yanmar dealer.
Blower wash
Turbocharger
Air inlet
Precleaner
(7) Inspection and Adjustment of Intake/Exhaust Valve Clearance (1st Time)
Inspection and adjustment must be made to correct opening/closing timing lags of the intake/
exhaust valves which might arise due to initial parts wear. This inspection requires specialized
knowledge and techniques. Consult your Yanmar dear or distributor.
(8) Inspection and Adjustment of Fuel Injection Valve (1st Time)
lnspection and adjustment are necessary to obtain optimal fuel injection to ensure the good
engine performance. This inspection requires specialized knowledge and techniques. Consult
your Yanmar dealer, or distributor.
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