Preparation Of Cooling System; Fig. 3-9 Coolant Expansion Tank Cap - Mitsubishi S12R-T2MPTK Operation & Maintenance Manual

Preparation of Cooling System

Coolant Expansion Tank Cap - Open/Close
Never open the coolant expansion tank cap during
the operation or immediately after stopping. Stop the
engine and, after coolant has sufficiently cooled
down, open the cap.
To open the coolant expansion tank cap, place a
waste cloth over the cap, and loosen it about a quar-
ter-turn to release the internal pressure.
The coolant is hot while the engine is running and im-
mediately after stopping. If the cap is opened while
the coolant is hot, hot coolant steam that can burn
you will burst out. To avoid a steam burn, wear thick
rubber gloves or wrap a cloth around the cap.
When tightening the coolant expansion tank cap, be
sure to tighten securely.
Chapter 3 OPERATION
1/4 turn to reliese
pressure.

Fig. 3-9 Coolant Expansion Tank Cap

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