Komatsu Utility 4D98E Series User Manual

10. ALTERNATOR....................................................................................... 176
10.1 The 40A Alternator for 3TNV84 and other models............................................................. 176
10.1.1 Components .......................................................................................................................176
10.1.2 Specifications .....................................................................................................................177
10.1.3 Wiring diagram ...................................................................................................................177
10.1.4 S
tandard output characteristics
..........................................................................................178
10.1.5 Inspection...........................................................................................................................178
10.2 Troubleshooting ................................................................................................................. 179
11. ELECTRIC WIRING .............................................................................. 180
11.1 Electric Wiring Diagram ..................................................................................................... 180
11.2 PRECAUTION ON ELECTRIC WIRING............................................................................ 181
11.2.1 Alternator ............................................................................................................................181
11.2.2 St
arter.................................................................................................................................182
11.2.3 Current limiter .....................................................................................................................183
1
1.2.4 Section area and resis
tance of electric wire .......................................................................184
12. SERVICE STANDARDS ....................................................................... 185
12.1 Engine Tuning.................................................................................................................... 185
12.2 Engine Body ...................................................................................................................... 186
12.2.1 Cylinder head .....................................................................................................................186
12.2.2 Gear train and camshaft.....................................................................................................
189
12.2.3 Cylinder block
.....................................................................................................................190
12.3 Lubricating Oil System (Trochoid Pump) ........................................................................... 195
12.3.1 Outside clearance of outer rotor .........................................................................................195
12.3.2 Side clearance of outer rotor
..............................................................................................195
12.3.3 Inside clearance of inner rotor ............................................................................................195
12.3.4 Rotor
shaft clearance .........................................................................................................
195
13. TIGHTENING TORQUE for BOLTS and NUTS .................................... 196
13.1 Tightening Torques for Main Bolts and Nuts ...................................................................... 196
13.2 Tightening Torques for Standard Bolts and Nuts ............................................................... 197

Komatsu Utility 4D98E Series Specifications

General

Brand	Komatsu Utility
Model	4D98E Series
Category	Engine
Language	English