Komatsu 830E-AC Shop Manual page 80

Engine Storage- (Long Term)
6 Months to 24 Months
This procedure describes the proper method for the
long term storage of an engine.
Prepare the Engine for Long Term Storage
1. Operate the engine at high idle until the coolant
temperature is 160° F (70° C).
2. Turn engine off.
3. 3. Drain the oil. Install the drain plugs. Use Shell
66202 or equivalent, preservative oil. The oil
must meet Military Specification MIL-L-21260,
Type P-10, Grade 2, SAE 30. Fill the engine to
the "HIGH" mark.
4. Disconnect the fuel lines to the engine fuel filter
and the injector return line.
5. Use Daubert Chemical NoxRust No. 518, or an
equivalent preservative oil. The oil must meet
Military Specification MIL- L- 644 Type P9.
6. Fill two (2) containers: one with diesel fuel, the
second with preservative oil. Put both fuel lines
in the container of diesel fuel.
7. Start the engine.
8. After the engine is operating smoothly, transfer
the fuel supply line to the container of preserva-
tive oil. Operate the engine until the preserva-
tive oil flows out of the injector return line.
9. Turn the engine off. Connect the fuel lines to
the fuel filter and the injector return.
10. Drain the preservative oil from the engine oil
pan sump, the air compressor and the oil filters.
11. Remove the intake and exhaust manifolds.
Spray preservative oil into the intake and
exhaust ports in the cylinder heads and in the
manifolds.
12. Spray preservative oil in the intake port on the
air compressor.
13. Use a rust preventative compound that meets
Military Specification MIL-C-16173C, Type P-2,
Grade 1 or 2. Brush or spray the compound on
all of the exposed surfaces that are not painted.
14. 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 covers.
15. Cover all the openings with heavy paper and
tape to prevent dirt and moisture from entering
the engine.
A7-12
Put a WARNING tag on the engine. The tag must
indicate:
• The engine
preservatives.
• Do not bar turn the crankshaft.
• The coolant has been removed.
• The date of treatment.
• Do not operate the engine.
16. Store the engine in an area that is dry and has a
uniform temperature.
Remove the Engine from Long Term Storage
1. Use clean diesel fuel. Flush the fuel system
until all of the preservative oil is removed.
2. Remove the plug from the main oil rifle pas-
sage. Use a hot, lightweight mineral oil. To flush
all of the preservative oil from the engine: Bar
the engine crankshaft three to four revolutions
during the flushing procedure.
3. Fill the oil pan sump, oil filters, and fuel filters.
4. Drain the rust preventative compound from the
cooling system. Fill the cooling system with
coolant.
5. Prime the lubricating system. Refer to Cummins
Engine Shop Manual, (Section 14-01, Engine
Run-in-Period).
6. Adjust the injector and the valve clearance.
Refer to Cummins Engine Shop Manual, (Sec-
tion 00-02, Engine Assembly).
7. Tighten the intake manifold mounting cap
screws.
Storage Procedures
has been treated
A07006
with