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.
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.
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.
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.
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
