REPAIR INSTRUCTIONS, PART 2
Page 391
COOLING SYSTEM SERVICE
PROCEDURES (IN-CHASSIS)
Thermostat Replacement
[215 NU, NG & LD]
The EGR mixer tube must be removed to gain
access to the thermostat housing for replacement
of the thermostats. Once the mixer tube is
removed, proceed as follows:
Allow the cooling system to cool completely
before attempting to remove the thermostat or
thermostat housing. To avoid injury when
removing the pressure cap from the surge
tank, turn the cap counterclockwise to the
first stop, but do not depress. Allow pressure
to dissipate completely, and then press on the
cap downward and continue turning to
remove.
THERMOSTAT HOUSING REMOVAL
[215 NG & NU]
1. Loosen the hose clamp for the surge tank
port at the side of the thermostat housing.
Allow the surge tank to drain into an
approved container and save the coolant for
reuse.
2. Loosen the hose clamps and disconnect the
bypass and radiator hoses at the front of the
thermostat housing (Figure 465).
465
Figure 465 — Thermostat Housing Hose Connections
3. Remove the cab heater and optional fuel
heater coolant return hoses from the
thermostat housing (if applicable). The cab
heater and optional fuel heater coolant
return hoses were relocated from the
thermostat housing to the radiator lower
tube in mid-2004.
4. Loosen and remove the three mounting
capscrews from the thermostat housing.
1. Bypass Hose
2. Radiator Hose Port
3. Surge Tank Port
5-111.bk Page 391 Monday, July 10, 2006 2:26 PM
Summary of Contents for ASET AC
Page 6: ...TABLE OF CONTENTS Page iii TABLE OF CONTENTS 5 111 bk Page iii Monday July 10 2006 2 26 PM...
Page 14: ...INTRODUCTION Page 1 INTRODUCTION 5 111 bk Page 1 Monday July 10 2006 2 26 PM...
Page 23: ...Page 10 NOTES 5 111 bk Page 10 Monday July 10 2006 2 26 PM...
Page 96: ...COMPONENT LOCATOR Page 83 COMPONENT LOCATOR 5 111 bk Page 83 Monday July 10 2006 2 26 PM...
Page 99: ...Page 86 NOTES 5 111 bk Page 86 Monday July 10 2006 2 26 PM...
Page 100: ...TROUBLESHOOTING Page 87 TROUBLESHOOTING 5 111 bk Page 87 Monday July 10 2006 2 26 PM...
Page 140: ...MAINTENANCE Page 127 MAINTENANCE 5 111 bk Page 127 Monday July 10 2006 2 26 PM...
Page 153: ...Page 140 NOTES 5 111 bk Page 140 Monday July 10 2006 2 26 PM...
Page 383: ...Page 370 NOTES 5 111 bk Page 370 Monday July 10 2006 2 26 PM...
Page 479: ...Page 466 NOTES 5 111 bk Page 466 Monday July 10 2006 2 26 PM...
Page 480: ...SPECIFICATIONS Page 467 SPECIFICATIONS 5 111 bk Page 467 Monday July 10 2006 2 26 PM...
Page 505: ...Page 492 NOTES 5 111 bk Page 492 Monday July 10 2006 2 26 PM...
Page 513: ...Page 500 NOTES 5 111 bk Page 500 Monday July 10 2006 2 26 PM...
Page 519: ...Page 506 NOTES 5 111 bk Page 506 Monday July 10 2006 2 26 PM...
Page 520: ...APPENDIX Page 507 APPENDIX 5 111 bk Page 507 Monday July 10 2006 2 26 PM...
Page 528: ...INDEX Page 515 INDEX Index fm Page 515 Monday July 10 2006 2 48 PM...
Page 535: ...Page 522 NOTES Index fm Page 522 Monday July 10 2006 2 48 PM...