SECTION 05: COOLING SYSTEM
Section 05 Updated Sept.2016 X3-45 Commuter PA1593 DOB 2400-2489 1
CONTENTS
1. DESCRIPTION............................................................................................................................... ............... 3
2. MAINTENANCE...........................................................................................................................................4
2.1 GENERALRECOMMENDATIONS...............................................................................................................................4
2.2 MTAVEHICLESEQUIPPEDWITHVOLVOD13ENGINE.................................................................................................4
3. HOSES........................................................................................................................................................4
3.1 CONSTANT‐TORQUEHOSECLAMPSONCOOLANTLINES–VOLVOD13..................................................................5
3.1.1 Installation.............................................................................................................................................5
3.1.2 Maintenance..........................................................................................................................................5
3.2 CONSTANT‐TORQUEHOSECLAMPSONCHARGEAIRCOOLER(CAC).....................................................................5
3.2.1 Maintenance..........................................................................................................................................6
4. THERMOSTATOPERATION..........................................................................................................................6
4.1 THERMOSTATREPLACEMENT........................................................................................................................6
4.2 CHECKINGTHERMOSTAT...................................................................................................................................6
5. COOLANT ...................................................................................................................................................6
5.1 COOLANTLEVELVERIFICATION..............................................................................................................................6
5.2 COOLANTLEVELSENSOR......................................................................................................................................7
5.3 THAWINGCOOLINGSYSTEM..................................................................................................................................7
5.4 COOLINGSYSTEMRECOMMENDATIONS...................................................................................................................7
5.5 COOLANTRECOMMENDATIONSFORMTACOACHESEQUIPPEDWITHVOLVOD13ENGINE.................................................7
6. DRAININGCOOLINGSYSTEM......................................................................................................................8
7. FILLINGCOOLINGSYSTEM..........................................................................................................................9
8. FLUSHING................................................................................................................................................... 9
8.1 COOLINGSYSTEMDESCALERS.............................................................................................................................10
8.2 REVERSEFLUSHING...........................................................................................................................................10
9. SPIN‐ONCOOLANTFILTER.........................................................................................................................10
10. RADIATOR.............................................................................................................................................11
10.1 MAINTENANCE.................................................................................................................................................11
10.2 RADIATORREMOVAL&INSTALLATION............................................................................................................11
11. CHARGEAIRCOOLERLEAKAGE...............................................................................................................14
12. COOLINGFANDRIVEMECHANISM.........................................................................................................14
12.1 DRIVEPULLEYANDUNIVERSALJOINTSHAFT............................................................................................................14
12.2 IDLERREPLACEMENT..........................................................................................................................................15
13. VARIABLESPEEDCOOLINGFAN..............................................................................................................15
13.1 LOCKINGRADIATORFANFOREMERGENCYOPERATION..............................................................................................16
13.1.1 ElectricalLocking.................................................................................................................................16
13.1.2 MechanicalLocking.............................................................................................................................16
13.2 MAINTENANCE.................................................................................................................................................17
13.3 INSPECTION.....................................................................................................................................................17
13.4 FANREMOVAL/INSTALLATION............................................................................................................................17
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