Mitsubishi S12R Service Manual

8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
160
Pub. No. 291Y1-40720 Revision: 5
10 Close the coolant drain cock (1) and
(2) on the engine body and water
pump.
Fig. 8-95 Coolant Drain Cock on Engine Body
Fig. 8-96 Coolant Drain Cock on Water Pump
11 Remove the plastic tube connected
to the coolant drain cock on the
water pump in Step 7.
12 Discard cleaning solution in the
container in Step 6 and Step 8
properly.
■ Cooling System - Flush
After cleaning the cooling system, flush the cooling
system.
1 Pour tap water through the coolant
filler cap.
2 Operate the start switch of the
generator "
Starting and Stopping
Devices Installed during
Manufacturing the Generator" (→
Page 86) to start the engine.
3 Operate the engine at the rated
speed for about 10 minutes.
4 Operate the stop switch of the
generator "
Starting and Stopping
Devices Installed during
Manufacturing the Generator" (→
Page 86) to turn off the engine.
5 Prepare a container for receiving
drained tap water and place it under
the coolant drain cock on the engine
body.
• The customer is required to prepare
the container.
6 Connect a clear plastic tube to the
coolant drain cock on the water
pump and fix with a band.
Fig. 8-97 Coolant Drain Cock on Water Pump
• Prepare a plastic tube (5 mm [0.20
in.] in diameter, approx. 1 m [39.37
in.] long) and a band.
(1)
(2)

Mitsubishi S12R Specifications

General

Brand	Mitsubishi
Model	S12R
Category	Engine
Language	English