Doosan 7/73-10/53, Operation And Maintenance Manual

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MAINTENANCE 33
7/73 - 10/53
This procedure describes the proper method for the long-term (more
than 6 months) storage of an engine that is currently in running
condition. This procedure applies to this engine either remaining in
chassis -or being removed out of chassis upon completion of the steps
below.
Prepare the Engine for Long Term Storage
• Operate the engine at high idle until the coolant temperature is 70°C
[158°F].
• Turn the engine off.
• Drain the oil.
• Install the drain plugs.
• Fill the engine oil pan sump to the high mark using TectylTM 910 or
equivalent engine preservative oil. This will provide long term
engine rust protection. The oil must meet military specification MIL-
PRF-21260, Type P-10, Grade 2, SAE 30.
Internal Preservation of the Fuel System with Mechanically and
Electronically Actuated Injectors
• Disconnect the fuel lines to the engine fuel filter and the injector
return line.
• Use Diesel Pump and Injector calibration fluid that meets ISO 4113
standard, SAE J967d standard and Bosch VS 15665-0L standard.
Alternatively you can use the diesel fuel with 0 percent bio components
content for Internal Preservation of the Fuel System.
• Start the engine.
• After the engine is operating smoothly, transfer the fuel supply line
to the container of calibration fluid or the container of diesel fuel with
0 percent bio components content.
• Let the engine run for approximately 25 minutes at low idle in order
to ensure that the engine preservative oil (TectylTM 910 E or
equivalent) is distributed around the engine and its internal
components and that the calibration fluid or the diesel fuel with 0
percent bio components content flows out of the injector return line.
• Turn the engine "OFF".
• Connect the fuel lines to the fuel filter and the injector return line.
• Drain all the preservative oil from the engine oil pan sump, the air
compressor (if applicable), and drain all the oil filters and all the fuel
filters.
• Install the drain plugs.
• If the engine is being stored as a loose engine, drain the engine
coolant and cover all cooling system openings with plastic and tape.
• If the engine is not being removed from chassis and the engine has
an extended life coolant with rust inhibitor, then coolant does not
need to be drained.
• If the engine will remain in storage for over 24 months, the engine
cooling system
must be drained and flushed with a suitable solvent
or a hot, lightweight mineral oil. Repeat after each 24-month period.
• Remove the intake and exhaust manifolds.
• Spray preservative oil into the intake and exhaust ports in the
cylinder heads and in the exhaust manifolds
only . Do not use
preservative oil on the intake manifold or any fuel system
components as this may permanently damage sensors or valves.
• Spray preservative oil in the inlet port on the air compressor (if
applicable).
• Remove the rocker lever covers.
• Spray the rocker levers, the valve stems, the springs, the valve
guides, the crossheads, and the push rods with preservative oil.
• Install the rocker lever covers, intake and exhaust manifolds.
• Brush or spray the preservative oil on all the exposed metal
surfaces that are
not painted. Preservative oil should not be
applied to any plastic, rubber, or similar surfaces. Make sure to coat
the flywheel, flywheel housing and all other unpainted machined
surfaces with this preservative oil. Use a rust preservative oil
compound that meets military specification MIL-C-16173C, type P-
2, Grade 1 or 2.
• For components containing exposed bearings that are not easily
accessible e.g. Fan Hubs, remove the component to aid access.
Brush or spray preservative oil on all surfaces that are
not painted
and refit the component. Use a rust preservative oil compound that
meets military specification, MIL-C-16173C, type P-2, Grade 1 or 2.
• Cover all the openings (engine and components) with heavy paper
and tape to prevent dirt and moisture from entering the engine.
Cover the entire engine with plastic.
• Put a warning tag on the engine. The tag must indicate:
-
Do not operate the engine.
-
Do not bar the crankshaft.
-
The engine has been treated with preservatives.
-
The coolant has been removed.
-
The date of treatment.
-
The date of the 6 week inspection if required.
• Remove any external drive belts to prevent localized stretching and
deformation.
• If the engine can be stored inside a designated storage facility
isolated from the external environment, ignore the following step.
• Excluding the crankshaft, ensure that all external dynamic engine
components are rotated every 6 weeks. Ensure parts are free from
corrosion, debris and water ingress. Record and date this on the
engine tag created.
WARNING: Coolant is toxic. Keep away from children and pets.
If not reused, dispose of in accordance with local environmental
regulations.
CAUTION: After 24 months in storage, the engine cooling system
must be drained and flushed with a suitable solvent or a hot,
lightweight mineral oil. Repeat flushing procedure a second time
before being put back into service.
CAUTION: DO NOT use diesel fuel containing bio components for
internal preservation of fuel system for engine storage. Fuel
properties degradation may cause damages and lead to premature
failure of fuel system components.
NOTE: Using calibration fluid allows storage for up to 12 months.
After 12 months the engine fuel system must be drained and flushed
again with fresh calibration fluid. Repeat after each 12-month period.
NOTE: Using diesel fuel with 0 percent bio components content
allows storage for up to 6 months. After 6 months, the engine fuel
system must be drained and be flushed again with fresh diesel fuel
with 0 percent bio components content. Repeat after each 6-month
period.
CAUTION: Before starting another Internal Preservation of the Fuel
System procedure again (after passing a storage period) it is required
to fill the engine oil pan sump to the high mark using TectylTM 910 or
equivalent engine preservative oil.
CAUTION: The engine must be stored in an area that is dry and has
uniform temperature.