As a precaution the engine cannot be started when the turning
gear is engaged. Starting air to the distributor is led through a
blocking valve (9), mechanically blocked when the turning gear
is engaged, thus preventing start.
The starting air system is equipped with the safety valve (19),
which protect the system and the components in possible fault
situations.
Note!
Before any maintenance steps are taken, make sure that the
starting air shut-off valve located before the starting valve is
closed and the engine starting air system is drained.
21.2
Main starting valve
21.2.1 Description
Inlet pressure is led through drillings to a small pilot valve with a
pilot piston (22). This valve can be manually operated by the push
button (21) or pneumatically operated by a solenoid valve for remote
or automatic start. When opening the valve, the air flows through
drillings (23) to the power piston (24), which exerts its thrust through
a valve stem (25) directly on to the main valve and opens this against
the load provided by a return spring (26) and inlet pressure. The inlet
pressure acts under the main valve and so helps to maintain a tight
seal with the valve in closed position.
The standard valve is arranged to open when energized.
Main starting valve
21. Bush button
22. Pilot piston
23. Drilling
24. Power piston
25. Valve stem
26. Spring
27. Flange
21
25
22
23
24
26
27
Fig 21-2
402101200020
21
Starting Air System
32-200202-01
21 - 2
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...