9 Mount all screws (18), (30) and (35) of the air cooler,
see Fig 15-6 and Fig 15-7, and tighten these according to
chapter 07. Remove the lifting tool.
10 Mount the studs
and lift the air inlet box (16) into posi-
tion, see Fig 15-5.
11 Mount the air inlet box (17),
but do not tighten it before
all the nuts (15) are hand tightened.
12 Tighten the nuts (14) and (15) on the air inlet boxes
to
torque according to chapter 07.
13 Tighten the screws (13).
14 Mount the electrical equipment.
15 Fill the cooling system with water
16 Vent the air cooler
and check the tightness of the seal-
ings at engine start-up.
15.5.6 Charge air pressure difference over air cooler
The charge air cooler maintains the thermal load of the diesel
engine at a correct level. This is very important for keeping fuel
consumption and operating costs down.
An increasing pressure drop (
D
p) over the charge air cooler (on
the “air side”) causes an increasing thermal load and increasing
fuel oil consumption.
By constant measuring of the
D
p over the charge air cooler, the
condition of the charge air cooler can be evaluated, and the air cooler
can be cleaned or changed to a spare air cooler at the right time.
D
p over clean charge air cooler [mmH
2
O]/[mbar]
Engine type
Single stage
cooler
Two stage
cooler
Alarm limit
6L and 12V
215/21
255/25
765/75
8, 9L, 16V and 18V
490/48
530/52
765/75
The pressure difference over the air cooler can be measured by
using an u-tube manometer, see Fig 15-12.
1 Disconnect pipes
from the pressure difference
transducer (PDT 623).
2 Connect the water filled u-tube
to the pipe unions.
3 Measure the pressure difference
by using a measuring
tape.
15
Turbocharging and Air Cooling
32-200549-10
15 - 18
WÄRTSILÄ 32
Summary of Contents for PAAE051728
Page 4: ......
Page 18: ...Appendix B Welding Precautions 200640 00 6...
Page 26: ...01 Main Data Operating Data and General Design 32 200634 01 01 8 W RTSIL 32...
Page 60: ...Appendix A Environmental Hazards 200507 02A 10...
Page 68: ...Page 7 7 Document No 4V92A0645 Rev j...
Page 84: ...03 Start Stop and Operation 32 200402 04 03 12 W RTSIL 32...
Page 98: ...04 Maintenance Schedule 32 200623 01 04 14 W RTSIL 32...
Page 154: ...07 Tightening Torques and Use of Hydraulic Tools 32 200643 01 07 30 W RTSIL 32...
Page 162: ...08 Operating Troubles Emergency Operation 32 200402 01 08 8 W RTSIL 32...
Page 164: ...Specific Installation Data 2005 01 09 2...
Page 178: ...10 Engine Block with Bearings Oil Sump and Cylinder Liner 32 200150 10 14 W RTSIL 32 34SG...
Page 216: ...Appendix A Testing of cylinder tightness 32 200142 A 4 W rtsil 20 32 34...
Page 226: ...13 Camshaft Driving Gear 32 200546 02 13 10 W RTSIL 32...
Page 254: ...15 Turbocharging and Air Cooling 32 200549 10 15 20 W RTSIL 32...
Page 274: ...16 Injection System 32 200627 01 16 20 W RTSIL 32...
Page 280: ...Fuel System 32 200508 07 17 6 W RTSIL 32...
Page 314: ...19 Cooling Water System 32 200050 19 14 W RTSIL 32...
Page 394: ...23 Instrumentation and Automation 32 200115 II 23 60 W RTSIL 32...