Preservation
Long term preservation
A3.09.02.00
M20-M601C
en / 30.10.2000 BA000122 1/3
Ĺ
Heavy preservation (long term preservation)
1. Required tools, preservation, cleaning and auxiliary means
1.1 spray gun, injection pipe, brush, cloth
1.2 preserving oil that can be sprayed and does not dry (e.g. Aral Konit SAE 30)
1.3 a viscous, sticking and drying preservative (e.g. Valvoline Tectyl 506)
1.4 non-drying corrosion-inhibiting grease (e.g. Shell ALVANIA 3)
1.5 governor oil (e.g. Hydrol DO 46)
1.6 clean turbine or hydraulic oil (A4.05.08.nn)
1.7 slovent-free cleaning and/or washing agent
1.8 plastic plugs (e.g. Kapsto unisersal protective plugs GPN)
Attention:
The engine finish may not be etched by cleaning and/or washing agent!
Use only suitable washing agents!
Keep to the operation, safety and sanitation instructions of the manufacturer!
2. Preservation measures engine
In case shut down of the engine for longer than 2 months, following work is to be carried out
beside the measures stated under A3.09.01.nn.
2.1 Combustion chambers and cylinder liners
• Open indicator valves.
• Turn the piston of one cylinder in the normal direction of rotation to BDC with opened
exhaust valve.
• Spray preserving oil (see 1.2) through the indicator passage into the combustion chamber
by means of spray gun and injection pipe.
• Then, rotate to the engine in nominal direction of rotation to TDC and spray the inlet valves
as well with preservation oil (see 1.2).
• Repeat this operation for the other cylinders.
• Close the indicator valves.
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