
TABLE OF CONTENTS
Form 169017 / 169087 / 169095 4 Revision C
7.7.5Park Brake.................................................................................................................................130
7.7.6HVAC System............................................................................................................................132
7.8CUMMINS ENGINE (M150) ................................................................................................ 135
7.8.1General Engine Inspection.........................................................................................................135
7.8.2Manually Turning Engine...........................................................................................................135
7.8.3Oil Level.....................................................................................................................................136
7.8.4Changing Oil and Oil Filter.........................................................................................................137
7.8.5Air Intake System.......................................................................................................................139
7.8.6Fuel System...............................................................................................................................142
7.8.7Engine Cooling System..............................................................................................................147
7.8.8Gearbox.....................................................................................................................................150
7.8.9Exhaust System.........................................................................................................................152
7.8.10Belts...........................................................................................................................................153
7.8.11Engine Speed ............................................................................................................................154
7.9CAT ENGINE (M200) .......................................................................................................... 155
7.9.1General Engine Inspection.........................................................................................................155
7.9.2Oil Level.....................................................................................................................................155
7.9.3Changing Oil and Oil Filter.........................................................................................................156
7.9.4Air Intake System.......................................................................................................................157
7.9.5Aspirator Hose and Check Valve Replacement.........................................................................159
7.9.6Fuel System...............................................................................................................................161
7.9.7Engine Cooling System..............................................................................................................166
7.9.8Gearbox.....................................................................................................................................170
7.9.9Exhaust System.........................................................................................................................172
7.9.10Belts...........................................................................................................................................173
7.10COOLING BOX.................................................................................................................... 175
7.10.1Cooling Box Screen...................................................................................................................175
7.10.2Cooling Box Maintenance..........................................................................................................177
7.11ELECTRICAL SYSTEM....................................................................................................... 179
7.11.1Battery .......................................................................................................................................179
7.11.2Headlights - Engine-Forward.....................................................................................................184
7.11.3Field lights - Cab-Forward..........................................................................................................186
7.11.4Flood Lights - Forward...............................................................................................................186
7.11.5Flood Lights - Rear ....................................................................................................................187
7.11.6Red and Amber Lights...............................................................................................................188
7.11.7Red Tail Lights (If Installed).......................................................................................................189
7.11.8Beacons (If Installed).................................................................................................................189
7.11.9Gauge Light...............................................................................................................................191
7.11.10Dome Light ................................................................................................................................191
7.11.11Ambient Light.............................................................................................................................191
7.11.12Turn Signal Indicators................................................................................................................191
7.11.13Circuit Breakers and Fuses........................................................................................................192
7.12HYDRAULIC SYSTEM........................................................................................................ 195
7.12.1Oil Level.....................................................................................................................................195
7.12.2Changing Hydraulic Oil..............................................................................................................196
7.12.3Hydraulic Oil Cooler...................................................................................................................196
7.12.4Hydraulic Oil Filters....................................................................................................................196
7.12.5Header and Reel Hydraulics......................................................................................................197
7.12.6Traction Drive Hydraulics...........................................................................................................199
7.12.7Hoses and Lines........................................................................................................................200
7.13WHEELS AND TIRES ......................................................................................................... 201
7.13.1Drive Wheels .............................................................................................................................201
7.13.2Caster Wheels...........................................................................................................................204
7.14MAINTENANCE SCHEDULE.............................................................................................. 208
7.14.1Break-In Inspections..................................................................................................................208
7.14.2Interval Maintenance .................................................................................................................209
8TROUBLESHOOTING................................................................................................................. 212
8.1ENGINE............................................................................................................................... 212
8.2ELECTRICAL....................................................................................................................... 215
8.3HYDRAULICS...................................................................................................................... 215
8.4HEADER DRIVE.................................................................................................................. 216
8.5TRACTION DRIVE .............................................................................................................. 216
8.6STEERING AND GROUND SPEED CONTROL................................................................. 217