Brakes use hydraulic systems to convert the kinetic energy of a moving vehicle into heat, slowing or stopping the vehicle. Hydraulic brakes are now more commonly used in tractors than older mechanical brakes. Hydraulic brakes work through a system of master cylinders, brake lines, and wheel cylinders that transfer pressure from the brake pedal through brake fluid to brake pads, which create friction to slow the wheels when engaged. Pressing the brake pedal pushes the master cylinder piston to move brake fluid through the lines and push out the wheel cylinder pistons, moving the brake pads out to contact the spinning drums and slow the wheel rotation.

1. BRAKES
TEAM TORQ

2. WHAT IS IT ???
• BASICALLY A MECHAINICAL DEVICE
WHICH STOPS OR SLOWS DOWN
THE MOVING VEHCLE WITH
MINIMUM STOPPING DISTANCE

3. ENERGY CONVERSION
• THE BRAKE SYSTEM CONVERTS KINETIC ENERGY OF THE VEHICLE MOTION
INTO HEAT

4. TYPES OF BRAKES USED IN TRACTORS
• MECHAINICAL (CONVENTIONAL)
• HYDRAULIC (MODERN)

5. MECHAINICAL BRAKES
• THESE BRAKES WERE USED IN EARLIER DAYS IN TRACTORS NOWADAYS THEY
ARE NOT AS MUCH IN USE.

6. HYDAULIC BRAKES
• IT IS THE MECHANISM OF BRAKING IN WHICH BRAKE FLUID IS USED TO
TRANSFER THE PRESSURE FROM CONTROLLING MECHANISM TO BRAKING
SYSTEM.
• THESE BRAKES ARE MORE COMMONLY USED NOWDAYS BY VARIOUS
TRACTORS MANUFACTURES LIKE MAHINDRA, TAFE ETC.

8. COMPONENTS
• RESERVOIR
• BRAKE CONTROL VALVE
• RELEASE CONNECTOR
• BRAKE CYLINDER
• BRAKE SHOES
• MASTER CYLINDER
• LINKAGES

9. WORKING PRINCIPLE AND CONSTRUCTION
• HYDRAULIC BRAKES WORKS ON THE BASIC PRINCIPLE OF PASCAL’S LAW .
• IT IS THE ARRANGEMENT OF MASTER CYLINDER FROM WHICH THE PIPELINES/HOSES ARE
CONNECTED IN WHICH INCOMPRESSIBLE FLUID IS FLOWING THROUGH MASTER CYLINDER.
Contd.

10. • THE FOOT PEDAL IS CONNECTED TO THE MASTER CYLINDER THROUGH THE
LINKAGE.
• MASTER CYLINDER IS FULL OF PRESSURISED FLUID OPERATAED BY THE BRAKE
PEDAL VIA CONTROL VALVE.
• AGAIN IT IS CONNECTED TO THE WHEEL CYLINDER THROUGH THE PIPELINE
CONTAINING FLUID INSIDE DRUM MECHANISM.
• BRAKE DRUM MECHAINISM CONSISTS OF BRAKE SHOE, CAM, BRAKE LINER,
AND ROTATING DRUMS OVER WHICH WHEELS ARE MOUNTED.

12. WORKING
• WHEN DRIVER PRESSES THE BRAKE PEDAL, IT PUSHES THE PISTON INSIDE
MASTER CYLINDER DUE T WHICH FLUID IS MOVED INSIDE BRAKE DRUM.
• WHEEL CYLINDER ALSO CONSISTS OF PISTON ASSEMBLY, AND DUE TO
INCREAMENT OF FLUID INSIDE IT, THE PISTONS MOVES OUTWARDS.
• BRAKE SHOES ALSO MOVES OUTWARDS TOWARDS THE ROTATION OF DRUM
WHICH STOPS THE WHEEL BY THE HELP OF FRICTION APPLIED BY THE BRAKE
PAD.
• THUS BRAKE IS APPLIED AND TRACTOR STOPS.

15. REFERENCE
• GOOGLE
• WIKIPEDIA
• http://global-solutions-for-automobile.blogspot.in

16. ANY QUESTIONS ???