Removal, disassembly and assembly of springs for cars of the UAZ-31512 family

Remove the front spring in the following order:

1. Unscrew the nuts of the ladders 11 (see Fig. 1) of the springs, remove the ladders, lining 12 and lining 4.

Front suspension for cars of the UAZ-31512 family

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

2. Place the front of the car on a stand.

3. Unscrew the bolts of the bracket 7 and the axle nut 16 of the spring lug.

4. Remove the spring 13 and disassemble the earring with rubber bushings 8.

Install the spring in reverse order.

Remove and install the rear spring in the same way as the front.

When installing the front and rear springs on the car, the bent lugs on the first two sheets should face forward.

The final tightening of the nuts of the spring ladders should be done with the loaded springs.

Disassemble the spring in the following order:

1. Secure the spring in a vise to the head of the center bolt.

2. Bend the spring clamps.

3. Loosen the center bolt nut and disassemble the spring. After dismantling, carefully clean the sheets of dirt, rinse in kerosene, replace broken sheets.

Assemble the spring in reverse order, taking into account the following:

1. Before assembly, lubricate the leaf springs according to the lubrication table.

2. Clamps securely riveted to the sheets, the ends of the rivets of the clamps should not protrude above the surface of the sheets.

3. Clamps after assembling the spring should not interfere with the free movement of sheets during operation.

4. After assembly, paint the spring.

Features of dismantling the front spring suspension

Replacing springs 12 (see Fig. 2), vibration-absorbing pads 15 and buffers 21:

1. Disconnect the lower lugs of the shock absorbers 22 from the longitudinal rods 1 by unscrewing the nuts and removing the bolts.

Front spring suspension

Fig. 2. Front spring suspension

2. Raise and place the front of the car on a stand.

3. Remove springs 12 and vibration-absorbing pads 15.

4. Loosen the buffer mounting bolts 21.

5. Reassemble in reverse order.

If you cannot remove or insert the spring, you must additionally disconnect one of the ends of the transverse link.

Replacement of rubber-metal joints 3, support bushings 6 longitudinal rods and rubber bushings 18, 19 of the stabilizer:

1. Securely fix the car from spontaneous movement.

2. Disconnect the lower lugs of the shock absorbers from the longitudinal bars by unscrewing the nuts and removing the bolts.

3. Unscrew nuts 7 and knock out the bolts securing the longitudinal rod to the bridge.

4. Unpin and unscrew the nuts 8.

5. Unscrew the nuts of the ladders 20 securing the stabilizer to the bar.

6. Remove the longitudinal rods by sliding the rear end of the rod out of the bracket hole on the frame.

7. Unscrew the bolts securing the stabilizer to the bracket 17.

8. Replace the rubber-metal hinges 3. The hinges are replaced using special mandrels on the pressing equipment. All hinges should be replaced at the same time.

9. Remove bushings 19 from the stabilizer and put on new ones.

10. Replace the bushings 18 and tighten the bolts securing the stabilizer to the bracket 17.

11. Put the washer and support rubber hinge 6 on the rear end of the rod 1, insert the rod into the hole of the bracket 5, put on the second rubber hinge and washer, screw on the nut 8.

12. Insert the front end of the rod into the bracket 4, install new bolts and nuts 7.

13. Install the second bar in the same way.

14. Tighten nuts 7 to a torque of 14–16 kgf m. Tighten nuts 8 to the stop and cotter them.

15. Install ladders 20 securing the stabilizer to the bar and tighten the nuts of the ladders.

16. Connect the lower shock absorber lugs to the trailing bars by inserting the bolts and tightening the nuts.

Replacing the tie rod 2 or rubber-metal joints 9:

1. Remove the bolt and nut securing the tie rod to the axle and frame.

2. Remove the tie rod.

3. Replace the hinges in the same way as the trailing rod hinges.

4. Install the linkage and secure it using new bolts.

5. Tighten the nut and bolt to a torque of 14–16 kgf m.

Removal, disassembly and assembly of springs for cars of the UAZ-3741 family

Remove the springs in the following order:

Front suspension for cars of the UAZ-3741 family

Fig. 5. Front suspension of cars of the UAZ-3741 family

1. Unscrew the nuts of the ladders 16 (see Fig. 5) of the springs, remove the ladders, lining 14 and pad 4 of the spring.

2. Detach the lower shock absorber lug.

3. Place the front of the car on a stand.

4. Unscrew the bolts securing the covers of brackets 1 and 9 and remove the covers.

Device for installing springs on cars of the UAZ-3741 family

Fig. 6. Device for installing springs on cars of the UAZ-3741 family: 1 - spring; 2 - frame; 3 - lever; 4 - screw cage; 5 - head; 6 - check

5. Remove the springs with rubber pads.

Install the springs in reverse order. At the same time, straighten the spring using a special tool (Fig. 6).

In the absence of a special device, we recommend installing the spring in the following order:

1. Secure the springs with stepladders on the bridge.

2. Install the spring pads on its ends.

3. Gradually lowering the car onto the bridge with springs and guiding the springs with the lever, ensure that the ends of the spring with pillows are alternately installed in its brackets.

4. Replace the bracket covers and tighten the bolts of their fastening.

Remove and install the rear spring in the same way as the front.

Disassemble the spring in the following order:

1. Secure the spring in a vise to the head of the center bolt.

2. Bend the spring clamps.

3. Loosen the center bolt nut and disassemble the spring. After dismantling, carefully clean the sheets of dirt, rinse in kerosene, replace broken sheets.

Assemble the spring in reverse order, taking into account the following:

1. Before assembly, lubricate the leaf springs according to the lubrication table.

2. Selected sheets must be with reinforced cups on root sheets and clamps.

3. Clamps securely riveted to the sheets, the ends of the rivets of the clamps should not protrude above the surface of the sheet.

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During operation, it may be necessary to adjust the full opening of the carburetor throttle valve and the position of the pedal

- Cause of malfunction Elimination method The clutch does not disengage completely (the clutch “drives”):