The transfer case is rigidly attached to the gearbox housing

The drive for the transfer case is the gearbox differential box, on the outer splines of the housing of which the drive shaft of the transfer case is installed

Особенности конструкции раздаточной коробки Renault Duster

The transfer case is a bevel gearbox with two bevel gears.

The main parts of the transfer case are the crankcase, the drive shaft, the cardan drive shaft (output shaft), the through shaft that drives the right front wheel, the drive and driven bevel gears.

The transfer case housing is cast from an aluminum alloy and has two vertical connectors, covered by front and rear covers.

The transfer case is attached to the clutch housing with three bolts and two nuts and is centered on two guide bushings pressed into the clutch housing.

Особенности конструкции раздаточной коробки Renault DusterОсобенности конструкции раздаточной коробки Renault Duster

On the right side, the transfer case is attached with a bracket to the cylinder block and the engine oil pan.

The bracket is simultaneously attached to three parts to prevent it from skewing when installing the transfer case and the appearance of internal stresses in it.

Особенности конструкции раздаточной коробки Renault DusterОсобенности конструкции раздаточной коробки Renault Duster

A floating split bushing is installed in the hole for attaching the bracket to the engine oil sump.

To attach the bracket to the cylinder block and the engine oil pan, special bolts with a centering collar are used.

When installing the transfer case, the outer splines of the hollow drive shaft are connected to the splines of the differential box installed in the gearbox, and the splines of the right wheel drive are connected to the splines of the differential side gear.

Inside the transfer case, on the splines of the drive shaft, the bevel drive gear of the hypoid transmission is rigidly fixed, which is in constant engagement with the driven gear.

The driven gear is made in one piece with the drive shaft of the cardan transmission by the output shaft.

A flange is put on the splines of this shaft, which connects the shaft with the flange of the universal joint yoke, as a result of which the universal joint shaft rotates constantly when the vehicle is moving.

The through shaft is located inside the hollow drive shaft and is connected to the housing of the inner hinge of the right wheel drive.

This connection is sealed with a rubber ring.

Особенности конструкции раздаточной коробки Renault DusterОсобенности конструкции раздаточной коробки Renault Duster

The transfer case is filled with lifetime gear oil.

Sometimes the need to change the oil may arise when switching to oil of a different viscosity, when repairing the transfer case or when removing the right wheel drive.

It is also imperative to change the oil after immersing the transfer case in water.

You need to drain the oil after the trip, when the oil is warmed up. Fill the transfer case with gear oil API GL5 SAE75W-90 in the amount of 0.9 liters.

The oil level should be at the edge of the inspection hole or slightly below (you can reach the surface of the oil with your finger).

If the level is too low, add oil with a syringe.

Possible transfer case malfunctions and remedies

- Cause of malfunction

Remedy

Noise when driving a car:

- Looseness of the attachment of the transfer case to the gearbox housing and to the engine oil sump

Tighten the mount or replace the feet

- Worn or damaged gears and bearings

Repair the transfer case

- The oil is filled with an inappropriate brand

Fill in conditioner oil

- Insufficient oil level

Add oil to the norm

Oil leak:

- Destruction, damage to oil seals

Replace oil seals