Inspect And Clean Hydraulic Oil Cooler; Remove And Install Charge Air Cooler - Yanmar BY Series Service Manual

COOLING SYSTEM
11. Check level of power steering fluid or marine
gear oil and add if necessary.
Inspect and Clean Hydraulic Oil
Cooler
(1)
Figure 7-11
1. Loosen clamps (Figure 7-11, (1)) and remove
seawater pipe (Figure 7-11, (2)).
2. Remove any loose debris from inside cooler.
3. Visually inspect cooling tubes for evidence of
debris, corrosion, or damage.
If the cooling tubes are plugged, remove cooler
and thoroughly backflush with water. NEVER
clean using a wooden dowel or wire brush.
Damage or inability to clean sufficiently will
require repair by a radiator shop or replacement
of oil cooler.
4. Install seawater pipe (Figure 7-11, (2)) and
tighten clamps (Figure 7-11, (1)).
5. Start engine and check for water leaks.
7-14
Remove and Install Charge Air
Cooler
( 1 )
( 2 )
0003655A
1. Drain seawater system. See Drain Seawater
2. Disconnect seawater pipe between hydraulic oil
3. Disconnect seawater pipe between charge air
4. Disconnect pipe between charge air cooler and
5. Remove pipe between charge air cooler and
6. Remove two bolts (Figure 7-12, (5)) that attach
7. Remove four lower bolts (Figure 7-12, (6)) that
8. Disassemble and repair as necessary. See
9. Install charge air cooler and start all bolts.
10. Tighten mounting bolts to 46 N·m (40 ft-lb).
11. Install pipe between intake manifold and charge
12. Connect seawater pipes to each end of charge
( 5 )
(3)
(1)
( 6 )
Figure 7-12
Cooling System on page 7-10.
cooler and charge air cooler (Figure 7-12, (1)).
cooler and heat exchanger (Figure 7-12, (2)).
turbocharger (Figure 7-12, (3)).
intake manifold (Figure 7-12, (4)).
heat exchanger to charge air cooler.
attach charge air cooler. Remove charge air
cooler assembly from engine.
Disassemble and Assemble Charge Air Cooler
on page 7-15.
air cooler.
air cooler.
BY Service Manual
Repair
( 4 )
( 2 )
0003659D