Brakes

Layout Of Brake

A.Brake Assembly

B.Gasket Brake Cover

C.Pin Brake

D.Intermediate Plate (Steel)

E.Friction Plate

F.Bull Pinion Brake Shaft

B.BRAKE SYSTEM

1.Theory of Operations

There are two sets of Brakes in the Tractor. Each set is sandwiched between Cover Plate and Rear Axle Carrier. Each side contains a set of 4 friction plates and 4 intermediate plates. Friction Plates are mounted on Bull Shaft. Intermediate Plates are supported in Rear Axle Carrier Housing and Brake Bolt.

When Pedal is pressed, Actuating Lever gets activated, which in turn activates Actuating Disc. The actuating disc expands with the guide of Rear Axle Carrier Housing and Brake Pin and Brake liners get compressed between Cover Plate and Rear Axle Carrier Housing. Friction Plate get compressed between adjacent mating surface, so frictional force is generated and this force stops the rotation of Bull Shaft. Thus Brakes are applied.

Brakes

1.Description

These tractors have hanging/suspended type brakes pedals to have wider space of the platform. Independent mechanical wet disc brakes are used the right & left travelling brakes. They are operated by the brake pedals through the mechanical linkages.

The parking brake is a mechanical type. Pulling the parking brake lever results in the same state as that obtained when the brake pedal are pressed. Although wet disc get worn out by approx. Several tens of micron depending on the accuracy of parts during the initial contact in the initial period of 50 hrs. or 80 hrs., Almost no wear occurs afterwards. This means that very little wear adjustments are required.

Since the brake disc are immersed in transmission oil ‘Fade’ is rarely caused.

2.Removal

a.Separate Rear Axle Carrier Housing from Transmission Case and place on suitable work bench for further dismantling.

b.Loosen bolt (A) and take out cover plate (B).

c.Remove friction disc (C), actuating disc assembly (D) and intermediate pin (E).

d.Remove retainer (F) from other side by loosening the bolts (G).

e.Take out bull shaft (H) with bearing (I) by slight tapping.

Brakes

3.Cleaning & Inspection

a.Clean all parts with suitable solvent.

b.Check friction plate for wear, crack and splines of plate with bull shaft. If excessive play or damaged, dents found replace the friction plate.

c.Inspect the linkage for wear.

NOTE: Discard the actuating disc spring if found weak or end are deformed.

d.Replace the worn or faulty parts.

NOTE: Removal, dismantling and installation procedure are same with other side brakes.

5.Installation

a.Reverse procedure of removal and dismantling.

b.Tighten the bolts at specified torque and check all friction plates and disc intermediates are free.

1. Oil Drain Plug Swivel Housing LH

2. Oil Filling and Level Check Point LH

3. Oil Drain Plug Differential Housing

Front Axle

1.FRONT AXLE

A.General Description

The 4WD Front Axle is a center pivot type. The front wheel drive mechanism is incorporated as a part of the axle.

The front wheel drive power is taken from transmission and transmitted to the differential in the front axle where the power is divided into right and left and to the respective final drives. In the final drive the transmitted revolution is reduced by the bevel gear to drive the front wheel.

The 4WD mechanism with bevel gears provides wider steering angle and greater durability.

B.Maintenance Points

4. Oil Filling and Level Check Point RH

5. Oil Drain Plug Swivel Housing RH

C.Lubrication/Greasing: Grades & Application Range