On Lada Largus cars, steering is installed with a rack-and-pinion steering mechanism and hydraulic booster

The steering gear consists of two steering rods connected by ball joints to the levers of the steering knuckles of the front suspension.

Steering column: 1 - intermediate shaft lower cardan joint; 2 - the outer part of the intermediate shaft; 3 - lower steering column mounting bracket; 4 - mechanism for adjusting the position of the steering column; 5 - steering column; 6 - splined tip of the steering shaft; 7 - ignition switch; 8 - steering shaft; 9 - upper cardan joint of the intermediate shaft; 10 - the inner part of the intermediate shaft

The steering mechanism is mounted on the front suspension subframe and secured to it with two bolts.

In the crankcase of the steering mechanism, the rack is pressed against the gear shaft by a spring through the stop.

The side clearance between the gear and the rack is adjusted by rotating the adjusting plug, which compresses the spring.

Adjustment is carried out when assembling the steering mechanism at the factory.

Steering mechanism: 1 - steering gear shaft; 2 - distribution valve mechanism; 3 - pipelines for supplying the working fluid; 4, 11 - steering rods; 5, 13 - ball joints of the outer tips of the steering rods; 6, 12 - outer tips of steering rods; 7, 10 - protective covers of steering rods; 8 - steering gear case, combined with a hydraulic cylinder; 9 - threaded rail stop

The steering gear consists of two steering rods connected to the steering gear rack and steering knuckle levers.

Each rod is attached with its inner end to the steering rack through a non-separable ball joint - the threaded tip of the hinge is screwed into the hole in the rack.

The tie rod end has a non-separable ball joint that does not require replenishment of the lubricant supply, which is embedded inside it for the entire service life.

The right and left tie rods are the same, but the ends are different.

The connection of the steering rack and the tie rod ball joint is protected from dirt and moisture by a corrugated rubber boot.

The cover is fixed with a steel disposable clamp on the steering gear housing, and the cover is held on the steering rod by a spring clamp - while the narrow belt of the cover must coincide with the groove made on the steering rod.

The steering column shaft is attached to the steering gear shaft through an intermediate shaft with two cardan joints.

A steering wheel is mounted on the splines in the upper part of the steering column shaft.

The steering column is safety, tilt-adjustable

The steering column is attached to the cross member bracket located under the instrument panel.

The power steering system includes: a steering gear, a pump, a reservoir for working fluid and connecting pipes of the lines.

Power steering pump

The pump is driven by a belt from the accessory drive pulley.

Hydraulic fluid from the reservoir enters the pump, and from it it is supplied under high pressure to the distribution device located in the steering gear housing and mechanically connected to the steering column shaft.

A hydraulic cylinder piston is fixed on the gear rack of the steering gear.

When the steering wheel is turned, the switchgear connects one of the hydraulic cylinder chambers to the pump discharge line, and the other chamber to the drain.

At the same time, due to the pressure difference of the working fluid, the hydraulic cylinder piston moves the rack to the left or right and through the steering rods, and the fist levers turn the steered wheels of the car.

The radiator is located behind the front bumper - mounted on the front suspension subframe in front of the air conditioning condenser and the radiator of the cooling system.

If the hydraulic booster fails, the ability to drive the car remains, but the force on the steering wheel increases.

Steering design of Lada Largus

The power steering reservoir is installed in the engine compartment on the top her radiator frame cross member

To control the liquid level, MIN and MAX marks are applied to the translucent body of the tank.

Possible steering problems and solutions

Cause of malfunction - Remedy

Increased steering wheel play and steering noise

Loosening the steering gear bolts - Tighten the bolts

Wear of ball joints of steering rods - Replace the joints, article - Removal of rods and steering tips

Steering shaft universal joint wear - Replace the steering shaft, article How to remove the steering column

Difficulty turning the steering wheel

Power steering pump drive belt slipping - Replace belt

Damage to the pump drive belt - Replace the belt, article - Replacing the drive belt of the units

Insufficient working fluid level - Restore the level to normal

Air in hydraulic system - Bleed

Twisted or damaged hoses - Repair kinked or replace hoses

Insufficient pressure of the power steering pump - Replace the pump, article - Replacing the power steering pump

Increased internal leakage in the pump - Replace the pump

Leaking steering fluid - Replace defective parts

Fuzzy return of the steering wheel to the middle position

Difficulty turning inboard or tie rod ends - Replace tie rod ends

Steering rack deformation - Replace the steering gear, article - How to remove the steering gear

Gear bearing damage - Replace steering gear

Twisted or damaged power steering hoses - Eliminate kinks or replace hoses

Pressure control valve damaged - Replace pressure control valve

Damage of pump rotor shaft bearing - Replace pump

Noise (knocking) in the steering

Loosening the steering gear bolts - Tighten the bolts

Loose tie rods or tie rod ends - Tighten nuts

Wear ball joints - Replace worn parts

Increased noise level of the power steering pump

Insufficient fluid level - Restore fluid level to normal

Air in hydraulic system - Bleed

Loosening the pump mounting bolts - Tighten the bolts