Warm Up Operation; Checking Engine Oil Pressure; External Inspection During Warm Up - Mitsubishi Heavy Industries L-Series Operation & Maintenance Manual

Warm up operation

Do not approach rotating parts during operation. Entanglement by rotating parts can cause serious injury.
After the engine starts, operate the engine in a no load condition at low idling speed for 5 to 10 minutes to warm up
the engine.

Checking engine oil pressure

During warm up operation, check if the oil pressure is
in the range of standard value (0.15 MPa {1.5 kgf/cm
[21 psi] or more).
Also, make sure the oil pressure gauge is operating
properly.
Note: The oil pressure gauge may indicate a higher
level than normal level immediately after the en-
gine starts, due to the low oil temperature. The
pressure gradually lowers to the normal level as
the oil temperature rises.
External inspection during
warm up
Visually check the external view of the engine for fuel,
engine oil and coolant leakage, or exhaust gas leak-
age from joints.
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Chapter 3 OPERATION
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