Regular Inspection a good Habit. The Brake Shoe. Familiarity with Working Parts. The Engine. Connecting Rods. Valves. Cam Shaft. The Clearance. Clutches. The Clutch Leather. Rivets in the Leather. Transmission System. The Differential. Universal Joints. Steering Gear. Worm and Worm Wheel. Batteries. The Vibrator. The Electrolyte. Contact Points. The Magneto. Magneto Impulses. Timing the Magneto. The Carbureter. Wrong Adjustment. Weather. CHAPTER XVII. ELECTRIC VEHICLES 201-214 Requirements. Gasoline-electric Trucks. The Current Used. Mechanically-produced Electricity. Current from Batteries. Primary Battery. Secondary or Storage Battery. Reversal of Current. Charging. Time required, and Current. Troubles in Use. Overcharging. The Circuiting. Economy in Use of Current. Series and Parallel. The Connections. The Controller. The General Equipment. Accessories. Seating Arrangement. The Transmission. Brakes. GLOSSARY 215 LIST OF ILLUSTRATIONS FIG. PAGE 1. Views of Plain Frame 13 2. Quarter Elliptic 14 2a. Half Elliptic 15 3. Three-quarter Elliptic 15 4. Full Elliptic 16 4a. Cantilever Spring 17 5. Fore and Aft Motion 17 6. Lateral Motion 18 7. Floating Axle 20 8. Semi-floating Axle 20 9. Crossing Depression 22 10. Striking Obstruction 22 11. Solid Tire 24 12. Single Tube 25 13. Double Tube 26 14. Illustrating Tire-removing Tool 27 15. Vulcanizer 29 16. Turning Action on Front Wheel 31 17. Illustrating the Strain on Fabric 33 18. Illustrating the Strain on Fabric 33 19. Effect of Flat Tire 34 20. Steering Wheel 38 21. Steering Gear 39 22. Type of Front Axle 40 23. Contracting Brake 41 24. Expanding Brake 41 25. Contract Mechanism 43 26. Equalizer Bar 44 27. Rear Axle. Service and Emergency Brake 45 28. Equalizing Mechanism 47 29. Resistance in Equalization 47 30. Equalizer and Differential Movements 48 31. Differential in Housing 50 32.