25,000 Mile [40,000 Km] PM 37
Air Cartridge 33
Air Cartridge Assembly, lubrication 33
Air Cartridge Retaining Ring 33
Air Chamber Seal, disassembly 33
Air Chamber Seal, positioning 34
Air Chamber Seal, replacing 34
Air Chamber, inspecting 30
Air filter, cleaning 37
Air leak, bleed hole 39
Air leaks, checking for 37
Air pressure 38
Bearing/Cartridge Kit 26
Bearing Nut, replacing 33
Bearings, checking 38
Bearings, chevron markings 32
Bearings, removal 32
Bearings, spacers 32
Belt, tensioning 36
Button Head Screws, removal 35
Cage Nut, removal 35
Cage Nut, tightening 30
CAUTION notices 3
Clutch Pack Kit 26
Control Components 6
Control System 5
DANGER notices 3
Disassembling The Fan Drive 28
ECM 8
ECM Sensors 9
Electrical Control Systems (ECM) 8
Electrical Control Systems (NON-ECM) 10
Electrical wiring, checking 38
Electronic Control Module (ECM) 8
Engine Coolant Thermal Switch 6
Engine Coolant Thermal Switch, setpoint 6
Face Seal 34
Face Seal, inspection 31
Fan Drive Control Components 14
Fan Drive engaged, engine hot 41
Fan Drive engagement, checking 38
Fan Drive engagement, fails to 40
Fan Drive, removal 27
Fan Drive System 4
Fan Drive, cycles frequently 41
Fan Mounting Disc, inspection 29
Fan Mounting Disc, reassembly 35
Fan Mounting Disc, removal and inspection 28
Fan Mounting Disc, removal, cautions 28
Final Test 48
Float Seal Tip, cleaning 34
Friction Disc Kit 25
Friction Liner Kit 25
Friction Liner, inspection 38
Friction Liner, premature failure 39
Friction Liner, removal 30
Friction Liner, replacement 35
General Information 3
Jack Bolt, removal 28
Jack Bolt, tightening 35
Kits, repair 23
Lab Activity - Fan Drive Control Components 14
Lesson 1: Fan Drive System 4
Lesson 2: Control Components 6
Lesson 3: Electrical Control Systems (ECM) 8
Lesson 4: Electrical Control Systems (NON-ECM) 10
Lesson 5: Drivemaster Parts And Repair Kits 22
Lesson 6: Removing The Fan Drive 27
Lesson 7: Disassembling The Fan Drive 28
Lesson 8: Rebuilding The Fan Drive 32
Lesson 9: Reinstalling The Fan Drive 36
Lesson 10: Preventive Maintenance (PM) 37
Lesson 11: Troubleshooting 39
Lubrication, Air Cartridge Assembly 33
Lubrication, Air Chamber Seal 34
Mailing your Final Test 3
Normally-Closed Electrical Controls 12
Normally-Open Electrical Controls 11
Open/Closed Electrical Controls, comparison 13
Open/Closed Electrical Controls, summary 13
Operation 4
Parts and Repair Kits 22
Parts Identification 22
Preventive Maintenance (PM) 37
Prior To Servicing 21
Rebuilding The Fan Drive 32
Refrigerant Pressure Switch 6
Reinstalling The Fan Drive 36
Removing The Fan Drive 27
Repair Kits 23
Review Questions - Fan Drive Control System 15
Review Questions - Fan Drive Service 42
Seal Kit
23
Sensors 9
Sheave 31
Sheave Bearings, checking 38
Sheave Bearings, chevron markings 32
Sheave Bearings, removal 32
Sheave Bearings, spacers 32
Sheave Replacement 33
Solenoid Valve 7
Solenoid Valve, determining normally-open or closed 11, 13
Solenoid Valve, plumbing 10, 13
Spring Housing/Piston Assembly reassembly 34
Spring Housing/Piston Assembly reassembly, lubrication 34
Spring Housing/Piston Assembly removal 30
Spring Housing/Piston Assembly removal, warning 30
Super Kit 24
Test, Final 48
Test, mailing to Horton 3
Tools Required 28
Torque Specifications 32
Troubleshooting 39
Types of Electrical Control Systems 10
WARNING notices 3
Weekly PM 37
