Yanmar 4LHA-HTP - Lube Oil Cooler

Chapter 5 Lubrication System
5. Lube Oil Cooler
.4LHA Serie
5. Lube Oil Cooler
Lube oil cooler
Lube oil filter
4LHA-HTE/-HTZE
-HTP/-HTZP
4LHA-STE/STZE
-STP/STZP
4LHA-DTE/DTZE
-DTP/DTZP
Cooling area
0.442m
2
0.739m
2
Cooling water
discharge volume
6000 i/h
Lubrication oil
discharge volume
(3300rpm)
2600 £/h
3700 É/h
5-2 Inspecting the lube oil cooler
(1) Clean the inside of the sea water pipes with a wire brush
to prevent the build-up of scale.
(2) If the rubber hose connection or welds are corroded,
repairor replace the cooler.
(3) Apply the following water pressures to the sea water and
lube oil lines to check for any leakage. Repair or replace
the cooler if there are any leaks..
Test pressure
Lubricating oil circuit
1.47MPa(15kgf/cm
2
)
Sea water circuit
0.39MPa (4kgf/cm
2
)
5-9