8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
161
Pub. No. 291Y1-40720 Revision: 5
7 Prepare a container for receiving
drained tap water and place it under
the coolant drain cock on the water
pump.
Fig. 8-98 Container to Receive Tap Water
• The customer is required to prepare
the container.
8 Open the coolant drain cock (1) and
(2) on the engine body and water
pump.
ï‚®The tap water poured in Step 1 will be
drained.
Fig. 8-99 Coolant Drain Cock on Engine Body
Fig. 8-100 Coolant Drain Cock on Water Pump
9 Close the coolant drain cock (1) and
(2) on the engine body and water
pump.
Fig. 8-101 Coolant Drain Cock on Engine Body
Fig. 8-102 Coolant Drain Cock on Water Pump
10 Discard tap water in the container in
Step 5 and Step 7 properly.
11 Repeat Step 1 to 10 until clean water
is drained.
12 Remove the plastic tube connected
to the coolant drain cock on the
water pump in Step 6.
13 Discard water in the container or
cleaning solution properly.
(1)
(2)
(1)
(2)
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