WÄRTSILÄ Vasa R22, Instruction Manual

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3 Check the indicator for pressure drop
over the lubricat-
ing oil filters. Too large pressure drop indicates clogged filter
cartridges, which results in reduced oil filtration when the
by-pass valve is open. Reduced oil filtration results in in-
creased wear. Vent filters and, if no improvement, change the
cartridges.
4 Check the oil level in the oil sump/oil tank. Estimate the
appearance and consistence of the oil. A simple control of the
water content: A drop of oil on a hot surface (about 150°C), e.g.
a hot-plate. If the drop keeps “quiet”, it does not contain water;
if it “frizzles” it contains water. Compensate for oil consump-
tion by adding maximum 10 % fresh oil at a time.
5 Check that the ventilation (de-aerating) of the engine
circulating water system (the expansion tank) is working.
Check that the leakage from the gossip hole of the circulating
water pump and the raw water pump is normal (slight).
6 Check the quantity of leak-fuel from the draining pipes.
7 Check that the drain pipes of the air coolers are open.
8 Check that the gossip holes of the oil coolers and the
circulating water coolers are open.
9 Clean the compressor side of the turbocharger by in-
jecting water. See the instruction manual of the turbocharger.
10 Drain the fuel day tank of water and sediments, if any,
and drain the starting air receiver of water.
11 Marine engines (propulsion and auxiliary engines): On a
stopped engine, prime the engine and turn the crankshaft
into a new position. This reduces the risk of crankshaft and
bearing damage due to vibrations.
03.3.2 Every second week or after every 250 run-
ning hours
1 Clean the centrifugal lubricating oil filters. If the depos-
its are thicker than 20 mm, reduce the cleaning interval to
retain filtering efficiency. Maximum deposit capacity is 40 mm.
2 Keep the injection pump racks clean (free from sticky
deposits), check that the parts of the fuel control shaft system
move easily. Is to be done on a stopped engine.
3 Clean the turbine side of the turbocharger by injecting
water. See chapter 15 and the instruction book of the turbo-
charger.
03.3.3 Once a month or after every 500 running
hours
1 Check content of additives in the circulating water.
03 Start, Stop and Operation 22-9632
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