Features of the UAZ-3151 suspension

The car's suspension consists of four longitudinal semi-elliptical springs working in conjunction with double-acting hydraulic telescopic shock absorbers

The front springs of the UAZ-31512 family consist of 8 sheets, the rear springs - of 7 or 9 sheets, depending on the configuration

The front and rear springs of cars of the UAZ-3741 family are identical and interchangeable, consisting of 13 leaves.

The fastening of the front and rear springs is similar.

Front suspension of UAZ-31512 vehicles: 1 - front bracket; 2 - frame; 3 - buffer; 4 - overlay; 5 - shock absorber bracket; 6 - shock absorber; 7 - rear bracket; 8 - rubber bushings; 9 - outer cheek of the earring; 10 - inner cheek of the earring; 11 - stepladder; 12 - lining; 13 - spring; 14 - washer; 15 - spring bushing; 16 - spring axle

Fig. 1. Front suspension of cars of the UAZ-31512 family

Fig. 2. Front spring suspension: 1 - longitudinal rod; 2 - transverse thrust; 3, 9 - rubber-metal hinges; 4, 5 - brackets for the longitudinal rod; 6 - rubber hinges; 7, 8 - nuts; 10, 11 - transverse rod brackets; 12 - spring; 13, 14 - spring brackets; 15 - vibration-absorbing gasket; 16 - stabilizer; 17 - stabilizer bracket; 18, 19 - rubber bushings; 20 - stepladder; 21 - buffer; 22 - shock absorber
Fig. 3. Rear suspension with leaf springs: 1 - shock absorber bracket; 2 - spring; 3 - shock absorber; 4 - frame; 5 - overlay; 6 - stepladder; 7 - gasket; 8 - earring brackets; 9 - shock absorber bracket; 10 - stepladder nut; 11 - axis; 12 - rubber bushing; 13 - buffer; 14 - inner cheek of the earring; 15 - finger; 16 - outer cheek of the earring; 17 - pin nut

Some vehicles of the UAZ-31512 family (including all UAZ-3153 vehicles) are equipped with a front spring suspension (Fig. 1) and a rear suspension with leaf springs (Fig. 2).

The leaf spring consists of 3 sheets (for the UAZ-3153 car - 4 sheets).

Fig. 4. Shock absorber: 1 - eye; 2 - compression valve limiter; 3 - compression rod housing; 4 - compression valve; 5 - inlet valve; 6 - reservoir; 7 - cylinder; 8 - recoil valve; 9 - piston; 10 - bypass valve; 11 - rod; 12 - casing; 13 - rod guide bushing; 14 - lower sealing ring; 15 - oil seal; 16 - upper sealing ring; 17 - seal ring; 18 - tank nut; 19 - washer; 20 - protective ring; 21 - rod seal; 22 - rebound buffer (for spring suspension)

The front and rear shock absorbers (Fig. 4) of all cars, except for cars with spring suspension, are the same and interchangeable.

For vehicles with front spring suspension and rear suspension with leaf springs, the front shock absorbers are shorter (by 25 mm).

Cars can be equipped with complete shock absorbers with cylinder diameters of 35 and 40 mm.

It is allowed to install shock absorbers of different sizes along the axles.

Possible suspension malfunctions and methods of elimination

- Cause of malfunction

Elimination method

Breakage of leaf springs or springs:

- Operating the vehicle under overload or driving at high speed on bad roads

Replace broken leaves, spring or spring

- Loosening the spring ladders

Pull up the stepladders

Large spring settlement (more than 20 mm) or springs:

- long-term operation of the vehicle with overload or in difficult road conditions

Replace the spring or edit its sheets; replace the spring

Creak in suspension:

- Lack or absence of lubrication of leaf springs

Lubricate the spring leaves

- Wear of rubber bushings of springs (cushions) or insufficiently tight fit

Replace the rubber bushings (cushions) or increase the tension of the bushings

- Looseness or wear of spring suspension hinges

Tighten or replace hinges

Impaired smooth operation of the suspension:

- Breakage of leaf springs

Replace broken sheets

- Reduced shock absorber efficiency or failure to operate ote

Replace the shock absorber or disassemble it, wash and replace sagging springs, broken and worn parts

Oil leak through the shock absorber oil seal:

- The seal nut is loose or the seal is worn

Tighten the oil seal nut or replace the oil seal