LT thermostatic valve
19.4.2.1 Maintenance
Normally, no service is required. Too low water temperature
depends on a defective thermostat, too high temperature may
depend on a defective thermostat, leaking O-rings, although, in
most cases, it depends on a dirty central cooler.
During normal overhaul, i.e. when changing the thermostat
element, there is no need to remove the control- cylinder (5) or
piston (6).
1 Drain the cooling water circuit.
2 Release the spring force
by opening the adjusting screw
(13), see Fig 19-5.
3 Remove the cover (11)
by opening the screws (12).
4 Remove the plug (1)
and push the control piston (6)
against the spring force until the retainer ring (2) can be
removed.
5 Remove the element holder (7)
with element, springs
(4) and washer (3).
6 Remove the control piston (6)
with the control cylinder
(5). Use extractor tools 800131 and 800063.
7 Remove the retainer ring (9)
and the thermostat ele-
ment (8).
1. Plug
2. Retainer ring
3. Washer
4. Springs
5. Control cylinder
6. Control piston
7. Element holder
8. Thermostat element
9. Retainer ring
10. Guiding pin
11. End flange
12. Screw
13. Adjusting screw
1
2
4
5
6
7
8
10
9
12
11
3
13
Fig 19-5
4019029601
32-200050
Cooling Water System
19
WÄRTSILÄ 32
19 - 9
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...