The front suspension of the car is independent, spring, lever (with a transverse arrangement of levers), with hydraulic monotube double-acting shock absorbers.

The front suspension is a unit consisting of the following main parts: cross members 3, steering knuckles 6, lower 13 and upper 4 levers, springs 10, shock absorbers 11, stabilizer.

The suspension unit also includes the front wheel hubs with bearings and brake discs.

Особенности конструкции передней подвески ГАЗель Некст

The front suspension, combined with the steering gear 15 and the steering rods 9, is an independent unit assembled on a removable cross member.

The cross member, in turn, is bolted to the vertical and lower horizontal flanges of the side members of the vehicle frame 1.

The steering knuckle of the front suspension is connected to the upper and lower arms by ball joints 5 and 8.

Attached to the knuckle are the front brake shield and the hub assembly, which consists of a hub with a brake disc, pressed into a tapered double-row bearing and secured in it by a central bolt with a thrust washer.

The double-row, double-sealed tapered roller bearing is grease lubricated and does not require adjustment or relubrication for the entire life.

Non-separable ball joints. They do not require adjustment and lubrication replenishment during the entire service life.

The upper arm is stamped with welded eyes for silent blocks.

The upper arm is attached to the cross member brackets with two adjusting bolts through eccentric washers.

The lower arm is stamped welded, with welded eyes for silent blocks.

The lower arm is attached to the cross member bracket through the bushings by a thru-axle with two nuts.

Suspension springs are cylindrical with unpolished bearing coils.

Through rubber gaskets, the springs with their upper ends rest in the cross-member cups, with the lower ends in the cups of the lower arms.

Shock absorbers are telescopic, hydraulic, with gas pressure, double-acting. Installed inside the suspension springs.

A rubber-metal hinge is pressed into the lower eye of the shock absorber, the axis of which is attached to the spring cup of the lower arm with two bolts.

The upper end of the shock absorber rod is attached via rubber pads to the suspension cross member.

A recoil buffer is built into the shock absorber housing, and a compression stroke buffer is put on the stem.

The upper part of the stem protruding from the shock absorber is protected from dirt by a rubber cap.

The anti-roll bar is used to reduce roll when cornering and improve handling.

The middle part of the stabilizer bar is braced through rubber bushings to the suspension cross member.

The ends of the rod are also connected to the lower levers with brackets through rubber bushings.

Possible front suspension malfunctions and remedies

Cause of malfunction (Remedy)

Knock in front suspension:

- Looseness of fastening of suspension parts

Tighten threaded connections

- Wear of stabilizer bushings

Replace defective bushings

- Loosening the shock absorber

Tighten the fasteners

- Wear of the lower hinge of the front shock absorber

Replace shock absorber

Decreased efficiency of the shock absorber:

- Violation of wheel alignment angles

Adjust the installation angles of the front wheels (article - Adjusting the installation angles of the front wheels GAZelle Next)

- Increased backlash of the front wheel hub bearings

Replace bearings (article - Replacing the bearing of the front wheel hub GAZelle Next)

- Decreased efficiency of shock absorbers

Replace shock absorbers

- Wheels are not balanced

Balance the wheels

- Worn out silent blocks of front suspension levers

Replace levers assembly or bushings

Heavy impacts to the suspension on rough roads:

- Subsidence or breakage of suspension spring coils

Replace the spring

- Decreased efficiency of shock absorbers

Replace shock absorbers

- Loss of elasticity or destruction of the compression stroke buffer

Replace the Compression Stroke Buffer on the Shock Rod

Squeak in the suspension on road bumps

- Silent blocks of suspension arms are worn out

Replace levers assembly or bushings

Checking the front suspension

Make sure the suspension parts are free of cracks or rubbing against road obstacles.

Особенности конструкции передней подвески ГАЗель Некст

Checking the condition of the metal hinges of the upper levers

Особенности конструкции передней подвески ГАЗель НекстОсобенности конструкции передней подвески ГАЗель Некст

Checking the condition of the lower arms

We inspect the hinges of the lower shock absorber mounting

Особенности конструкции передней подвески ГАЗель НекстОсобенности конструкции передней подвески ГАЗель Некст

We inspect the rubber bushings of the upper shock absorber mounting

We check the condition of the protective covers of the upper ball joints

Особенности конструкции передней подвески ГАЗель Некст

Checking the condition of the lower ball joints

If the covers are damaged, replace the ball joints.

Особенности конструкции передней подвески ГАЗель НекстОсобенности конструкции передней подвески ГАЗель Некст

We check the condition of the rubber bushings and the attachment of the stabilizer bar brackets to the levers

We check the condition of the rubber bushings and the attachment of the stabilizer bar brackets to the suspension cross member

On rubber parts and rubber-metal suspension joints (silent blocks), the following are not allowed:

- signs of aging, cracks, unilateral bulging of the rubber mass;

- separation of the rubber mass from the reinforcement.

Replace defective parts.

Checking shock absorbers

According to Mando Corporation shock absorber repair documents, a shock absorber is considered defective if the leaked oil covers more than half of its body.

Check the ball joints for play. To do this, raise the front of the car until the wheel is lifted off the surface.

Place a support under the lower arm in the hinge area and slightly load the spring.

Особенности конструкции передней подвески ГАЗель Некст

Rock the wheel vertically. If play is felt when the wheel is rocking, replace the worn ball joint.

When swinging the suspended front wheel, it is difficult to distinguish between the play in the hub bearing and the play in the ball joints.

Ask the assistant to press the brake pedal: if in this case you feel a backlash, then the ball joints are faulty. Article - Replacing the ball joints of the front suspension GAZelle Next

If the ball joints are in good working order, swing the wheels in a vertical plane, make sure that there are no backlash in the hub bearings. If there are signs of play, make a precise check of the bearing.

For accurate measurement of the amount of backlash, attach the dial gauge to the suspension parts (for example, on the upper arm).

Place the indicator tip on the surface of the brake disc at a diameter of 200 mm.

Attach a lever with a 500 mm shoulder to the wheel studs.

Swing the lever axially with a force of about 30 kgf.

Maximum lateral movement of the disc surface due to bearing play! should not exceed 0.050 mm.

With a larger movement, replace the bearing (article - Replacing the bearing of the front wheel hub GAZelle Next).

Another important criterion for assessing the condition of a hub bearing is wheel rolling noise.

You can check the bearing for noise with a stethoscope by turning the suspended wheel by hand.

The hub should rotate silently! without jamming, evenly. Clicks or hum can indicate wear on raceways and rollers.

If the result of the check is in doubt, it is necessary to check the bearing preload in terms of torque.

To accurately measure the torque of the bearing, hang out the front, part of the car and remove the corresponding wheel.

Особенности конструкции передней подвески ГАЗель Некст

Measure the diameter D (in meters) of the circle formed by the centers of the wheel studs.

Особенности конструкции передней подвески ГАЗель Некст

Attach a dynamometer to any wheel stud and pull it tangentially to the circumference of the hub (for example, in the direction of the arrow in the photo). Record the resulting force F.

Calculate the cranking torque using the formula M = F x 1 / 2D.

If the torque exceeds 5 Nm, then the bearing is faulty and requires replacement

Особенности конструкции передней подвески ГАЗель НекстОсобенности конструкции передней подвески ГАЗель Некст

We check the tightening of the threaded connections of the nuts of the fingers of the upper ball joints

We check the tightening of the adjusting bolts of the hinges of the upper levers

Особенности конструкции передней подвески ГАЗель НекстОсобенности конструкции передней подвески ГАЗель Некст

We check the tightening of the nuts of the axes of the lower hinges

Checking the tightening of the shock absorber rod nuts

Checking the tightening torque and tightening threaded connections that are locked using an anaerobic thread lock is not allowed.

Pulling off the bolts (nuts) in this case leads to the destruction of the retainer layer and the subsequent weakening of the connection.

Особенности конструкции передней подвески ГАЗель Некст

We check the draft of the suspension springs. To do this, on a standing car on the ground, measure the distance "I" between the subframe cross member and the lower suspension arm.

If "I" is less than 205 mm, the spring must be replaced (for this measurement, you must first remove the shock absorber).