Yanmar 6LYA-STP Mode D'emploi page 44

⑤Run the engine at load for about 10 minutes to dry the turbocharger and check that engine
output has recovered.
If the output has not recovered, repeat the above cleaning cycle 3 or 4 times.
If the output still has not recovered, consult your Yanmar dealer or distributor.
⑥Clean the pre-cleaner with detergent, dry it
and install it to the blower air inlet.
Replace the pre-cleaner(filter), if broken.
Blower wash agent (4 )
Yammar P/N
（6）Replacing the Fuel Filter Element
Replace the fuel filter element periodically
before there is clogging and the fuel flow is
reduced.
①Close the fuel cock of the fuel tank.
②Remove the drain plug and discharge the
fuel oil in the fuel filter. (put a pan under the
drain to catch the fuel)
③Loosen center bolt of the filter, remove the
lower case, and replace the element.
④Bleed air the fuel system. (See 3.2.1(2))
Fuel filter element
Yammar P/N
（7）Inspecting and Replacing
Anticorrosive Zinc
The timing for replacing anticorrosive zinc varies
depending on the characteristics of the sea-
water and operational conditions.
Inspect the zinc periodically and remove the
corroded area on the surface.
Replace the anticorrosive zinc when it has
decreased to less than 1/2 of the original
volume. If replacement of zinc is neglected and
operation is continued with a small volume of
anticorrosive zinc, corrosion of the seawater
cooling system will occur and water leakage or
parts breakage will result.
974500-00400
41650-550810
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41
[ NOTICE ]
Do not pour a large quantity of
blower cleaning agent or fresh
water in at once. The blower may
be broken or water-hammer may
occur.
Center bolt
Rubber packing
Sticker
ZINC
The label shown in the figure is stuck on
the plugs which have the anticorrosive
zinc.
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Fuel oil filter
Drain plug
Element
Center bolt
Anticorrosive
zinc
Plug