19.1.6 Monitoring
Local thermometers
•
HT before and after engine
•
HT after turbocharger
•
LT before charge air cooler
•
LT before lube oil cooler
•
LT after lube oil cooler
The temperatures mentioned in chapter 01., section 01.2 should
be followed.
The manometers (5) and (6) on the instrument panel indicate
HT- and LT-pressures after the pumps. The pressures depend on
the speed and the installation. Guidance values, see chapter 01.,
section 01.2.
The HT-water outlet after the engine is provided with an alarm
switch and a stop switch. Main engines are provided with alarm
switches for low HT- and LT-pressure. For further information,
see chapter 23.
19.2
Maintenance
19.2.1 General
The installation — including expansion, venting, preheating,
pressurizing — should be carried out strictly according to the
instructions of the engine manufacturer to obtain correct and
trouble free service.
The cooling water should be treated according to the recommen-
dations in chapter 02., section 02.3 to prevent corrosion and
deposits.
If risk of frost occurs, drain all cooling water spaces. Avoid
changing the cooling water. Save the discharged water and use it
again.
19.2.2 Cleaning
In completely closed systems fouling will be minimal if the cooling
water is treated according to our instructions in chapter 02.,
section 02.3. Depending on the cooling water quality and the
efficiency of the treatment the cooling water spaces will foul more
or less in course of time. Deposits on cylinder liners, cylinder
heads and cooler stacks should be removed as they may disturb
the heat transfer to the cooling water and thus cause serious
damage.
The need of cleaning should be examined, especially during the
first year of operation. This may be done by overhauling a cylinder
liner and check for fouling and deposits on liner and block. The
22-9601
Cooling Water System
19
VASA 22
19 - 3
Summary of Contents for Vasa R22
Page 14: ...Appendix B Welding Precautions 200147 00 4...
Page 42: ...02 Fuel Lubricating Oil Cooling Water 22 9601 02 22 VASA 22...
Page 60: ...03 Start Stop and Operation 22 9632 03 12 VASA 22...
Page 72: ...04 Maintenance Schedule 22 9845 III 04 12 MD HF...
Page 92: ...06 II Adjustments Clearances and Wear limits 22 9601 06 6 VASA 22...
Page 116: ...08 Operating Troubles Emergency Operation 22 9601 08 8 VASA 22...
Page 144: ...11 Crank Mechanism 22 9601 11 18 VASA 22...
Page 156: ...12 Cylinder Head with Valves 22 9601 12 12 VASA 22...
Page 164: ...13 Camshaft Driving Gear 22 9601 13 8 VASA 22...
Page 172: ...14 Valve Mechanism and Camshaft 22 9601 14 8 VASA 22...
Page 183: ...22 200520 Turbocharging and Air Cooling 15 VTR Turbocharger 15 11...
Page 189: ...15 III Turbocharging and Air Cooling 22 8604 15 6 VTR 161 251 Turbochargers...
Page 209: ...17 Fuel system 22 9601 17 8 VASA 22...
Page 229: ...18 Lubricating Oil System 22 9601 18 20 VASA 22...
Page 247: ...19 Cooling Water System 22 9601 19 18 VASA 22...
Page 261: ...21 Starting Air System 22 9601 21 10 VASA 22...