8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
162
Pub. No. 291Y1-40720 Revision: 5
â– Coolant - Refill
1 Close the coolant drain cock of (1) on
the engine securely.
Fig. 8-103 Coolant Drain Cock on Engine Body
2 Close the coolant drain cock (2) on
the water pump securely.
Fig. 8-104 Coolant Drain Cock on Water Pump
3 Open the coolant filler cap and
slowly refill the specified quantity of
coolant.
• For the specified quantity of coolant,
refer to "
SPECIFICATIONS - CHECK"
(→ Page 12).
• For mixing coolant, refer to "
Coolant -
Mix" (→ Page 113).
• Refill slowly to prevent air included in
the coolant.
4 Wait approx. 30 minutes until the
coolant to circulate all parts of the
coolant system, then check the
coolant quantity again.
5 Check the heat exchanger and other
part in the coolant system for
coolant leaks.
• If a leak is found, contact your MHIET
dealer "
CONTACT LIST" (→ Page
10) to arrange the repair.
6 Close the coolant filler cap properly.
7 Bleed air from the fuel system
"
Cooling System - Bleed Air" (→ Page
163).
(1)
(2)
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