| Item name | Spare part catalog number | Description |
| 1 | - | Rail |
| 2 | - | Gear shaft |
| 3 | - | Sleeve |
| 4 | - | Oil bushing |
| 5 | - | Mud seal |
| 6 | - | Input shaft |
| 7 | - | Torsion |
| 8 | - | Retaining ring |
| 9 | - | Oil seal |
| 10 | - | PTFE ring |
| 11 | - | Cast steering gear housing |
| 12 | - | Grooves |
| 13 | - | Pin - between the gear shaft and the sleeve |
| 14 | - | Oil seal |
| 15 | - | Gear shaft |
| 16 | - | Bearing |
| 17 | - | Pinion shaft nut |
The hydraulic distributor is part of the steering mechanism. The hydraulic distributor provides maximum power gain (for example, when parking), when minimal effort is required to turn the steering wheel.
The distributor gear housing is part of the main casting of the steering gear. The gear housing has four holes for connecting the supply line from the power steering pump, the return line to the reservoir and the supply lines on each side of the cylinder piston.
The hydraulic distributor consists of a sleeve, an input shaft, a torsion bar and a pinion shaft. The hydraulic distributor is mounted on the same axis as the pinion shaft, which is connected to the steering column via the input shaft. The hydraulic distributor parts are located in the steering gear gear housing, which is sealed with a sealed cover.
The sleeve is located in the main gear housing. Three annular grooves are made along its outer diameter. PTFE rings are installed between the grooves, serving as seals between the hole and the gear housing. Radial holes are drilled through the sleeve wall in each annular groove. The hole in the sleeve is bored to the size of the input shaft. Six grooves are made in the sleeve hole at an equal distance from each other. The ends of the grooves are closed and do not reach the end of the sleeve. Radial holes are drilled in each groove of the sleeve.
The input shaft has two machined surfaces on the outer end, designed to secure the intermediate shaft clamp of the steering column. The machined surfaces ensure correct installation of the intermediate shaft at an optimal angle. The inner end of the intermediate shaft has a projection that enters the groove of the pinion shaft. The position of the projection in the groove allows for a slight relative rotation of the input shaft and the pinion shaft before the projection touches the wall of the groove. This ensures operation of the steering in manual mode without overloading the torsion bar in the event of a failure of the booster. Along the circumference of the central part of the input shaft, longitudinal grooves are made at equal intervals. The grooves are located alternately around the input shaft.
The torsion bar is attached to the inside of the input shaft and is fixed to the pinion shaft. The torsion bar is connected to the input shaft by a drive pin. The torsion bar has a smaller diameter in the center than at the ends. The smaller diameter allows the torsion bar to twist under the influence of the torque applied to the steering wheel, in accordance with the tire grip on the road surface.
The pinion shaft has an upper projection in the central part, which engages with a projection on the steering rack. The projection on the input shaft enters the groove machined in the upper end of the pinion shaft. The pinion shaft is located in the gear housing and rotates on ball-and-roller bearings.
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