This document provides an overview of the fuel system, cooling system, and power transmission system in tractors. It discusses the key components of each system, including the sediment bowl, fuel filters, injector, radiator, clutch, gearbox, differential, final drive, and rear axle. Videos are included to demonstrate the working principles of items like the fuel injector, cooling system, clutch, differential, and gearbox. The purpose is to explain the function and components of the critical systems that deliver power from the tractor engine to the wheels.

1. Hitesh Bijarniya
Scientist,
ICAR-VPKAS, Almora
Agricultural Training Institute, Ahmednagar
One Month Online Training

2. At a glance
1. What is function of the fuel system
2. Components of fuel system and their working
3. Need of cooling system in engines
4. Types of cooling systems
5. Parts of cooling system
6. Power transmission system
7. Types of transmission system
8. Working of components of transmission systems

3. Fuel System

4. • Sediment Bowl.mkv
Fuel System
Fuel Sediment Bowl Fuel Lift Pump

5. Fuel System
Fuel Filters

6. • Diesel injector working.mp4
Fuel System

7. Fuel System

8. Cooling Systems
Air Liquid
Open/Thermo Siphon system
Closed/Forced system
Tractor Cooling System

9. Tractor Cooling System
Air cooled engines

10. Tractor Cooling System

12. • Cooling System workings.mp4
Tractor Cooling System

13. Power Transmission
system in tractor
1. What is Power Transmission System
2. Function of power transmission system
3. Components of Transmission system
4. Power outputs
5. Types of gear box
6. Types of final drive

14. What is Power
Transmission System?
❖ It may be called a sequence of gears and shafts,
through which the engine power is transmitted to the
tractor wheels.
❖ The system consists of various devices that cause
forward and backward movement of tractor to suit
different field condition.
❖ The complete path of power from the engine to the
wheels is called power train.

15. Components of
Transmission System
1) Clutch
2) Gear Box
3) Differential
4) Final Drive
5) Rear Axle
6) Rear Wheels
Engine
Clutch
Gear Box
Differential
Final
Drive
Rear Wheels
Rear Axle

16. Clutch
Clutch is a device,
used to connect and
disconnect the tractor
engine from the
transmission gears
and drive wheels.
Clutch transmits
power by means of
friction between
driving members and
driven members.

17. Types of Clutches
1. Positive clutch
A. Jaw Clutches
B. Dog Clutches
2. Friction clutch
A. Plate or disc clutch
i. Single plate clutch
ii. Multi plate clutch
B. Cone clutch
C. Centrifugal clutch
3. Fluid Coupling Clutches

18. • Clutch Working Principle.mp4
• Clutch parts and their functions: Clutch Escort.mp4
Working of The Clutch

19. Gearbox - Slidingmesh Vs Constantmesh Vs
Synchromesh - English.mp4
Gear Box
Types of transmission:
1. Sliding gear
2. Constant mesh
3. Synchronized or synchromesh
4. Power shift
5. Automatic
6. Hydrostatic
7. Hydromechanical
8. Continuously variable transmission (CVT)
Manual
Transmission
Automatic
Transmission

20. • Differential Working Principle.mp4
• Differential & Differential lock.mp4
Differential

21. Final Drive
❖ Final drive is a gear
reduction unit in the
power trains between
the differential and
the drive wheels.
❖ Final drive transmits
the power finally to
the rear axle and the
wheels
❖ Generally two types of final drives are
used in tractors
a) Bull Gear type
b) Planetary gears type