 printable version
Brake system
Vacuum brake booster
| Fig. 6.7. Brake servo: 1 - a vacuum hose; 2 - return valve; 3 - a collar; 4 - axis of the pusher; 5 - a washer; 6 - pin; 7 - the brake pedal assembly; 8 - the vacuum brake booster; 9 - the master cylinder
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The vacuum brake booster shown in Fig. 6.7. Failure of the vacuum amplifier significantly increases the force on the brake pedal, which adversely affects driving. To repair the vacuum amplifier requires a special tool, so it is advisable to replace it in the collection.
WARNINGS When removing the master cylinder is not pinched and damaged brake lines. Do not spill the brake fluid on the details of the car. It can damage the paintwork of the body. If the liquid gets on the paint body wash immediately with water. To prevent the Strait of brake fluid hose connections, wrap a cloth or tissue. |
Withdrawal Remove the air filter.
| Fig. 6.8. Pin brake fluid level
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Disconnect the connector brake fluid level sensor (Fig. 6.8). Remove the stopper brake fluid reservoir and a syringe or other device to remove liquid from a tank. Disconnect the brake pipes from the master cylinder.
A WARNING Take action against the brake fluid of the surrounding parts. |
| Fig. 6.9. Elements of the hydraulic drive braking system: 1 - the vacuum brake booster; 2 - a vacuum hose; 3 - pressure regulator (on vehicles without anti-lock braking system); 4 - the brake pipes
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Remove the brake master cylinder with vacuum booster, unscrewing the nuts securing it (Fig. 6.9). Disconnect the vacuum hose from the brake servo (see. Fig. 6.9). Disconnect the pushrod from the brake pedal. Remove the nuts securing the brake servo. Check the operation of the brake booster check valve Verification is done on the check valve installed in the vacuum hose. Remove the brake booster vacuum hose.
NOTE The check valve is installed with an interference fit in the vacuum hose by adjusting labels. |
Check the operation of the check valve by using a vacuum pump.
A WARNING In case of failure of the check valve assembly, replace it with the vacuum hose. |
Setting ?????�?�?????????�?� ???�???????????�?? ???????�???�?�?�?? ?�?????????�???? ?? ?�?�?�???????�?� ???�?????? ?????�???�?�?????? ?????�?�?�?????�?? ????-???�???�????. ???????�???� ?�?�?�???�???? ???�?�?? ???????�?�?? ?????�???�?�?????? ???�???????????????? ???????�???�?�?�?? ?�?????????�???? 8??�12 ???�??. ???�???�?????�?� ?????�?�???? ?? ???�???�?� ???????�?�???�?� ???�?�???? ???�???�?�???? ?�?????????�?� ?? ?�???�???�?�?�?�?�??. ???????????�?????????�?� ?�???�???�?�?�?�?? ?? ???�???�?�?? ?�?????????�?� ????????, ?�?�???????�?????�?� ?????? ???�???�?�?? ?????�?????�????. ?????�?�?????????�?� ???�?�?????�?? ?�?????????�?????? ?�???�????????, ???????????�?????????�?� ?? ???�???? ?�?????????�???�?� ?�?????�???????????????�. ???????????�?????????�?� ?? ???????�???�?�?�?? ???�???????????�?? ???�?�????.
A WARNING | Fig. 6.10. ???????????�???????�?????� ???�???????????????? ???�?�?????� ?? ???�?�?????�???? ???�???????????????? ???????�???�?�?�?? ?�?????????�????: 1 ??� ???�???????????�?? ???�?�????; 2 ??� ???�?�?????�????
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???� ?????????????�???�?� ???�???�?????�?�, ?????????�?????�?????? ?? ???�???????�?????? ???�?????�?�???�???????�?? ???�???????????????? ???�?�?????�. ?????? ???????????�???????�?????? ???�???????????????? ???�?�?????� ?? ???�?�?????�???? ???????�???�?�?�?? ???�???�???�???�?� ???�?�???? ???� 25??�27 ????, ???�?? ???????�?�?�???? ???� Fig. 6.10 . |
?�?�?�?�???�?� ?�?????????�?????? ?�???????????�?? ?? ?�?�?�???? ???????????????????????� ?�?????????�???? ?? ?????�?�???�?� ?????�?????� ???� ???????????????????????�. ???�?�?????�?�???? ?? ???�?????�???�?????? ???????�?�???�?????? ?�?????????�?????? ?�???????????�??. ?????????�?????�?� ?? ?????? ???�???�?�?????????????�?? ???�???�?????�?????????�?� ???�???�?�?? ?�?????????�?� (???�?????�?? ???�???�?�?? ?�?????????�?� ???�?? ?????�????).
| Fig. 6.11. ???�???�?� ???�???�???�?????? ?????�?�????
|
???????�?� ?????�?�?????????? ???�???�?????�?� ???????�?�?�???�?????� ?????�???�?�???�???? ?????�?�???? ?? ???�???�?� ???????�?�???�?� ???�?�???? ???????? ?? ???�???�?�???? ( ??????. 6.11 ).
?�?�?�?????�?? ?�?????????�?????? ?�???�????????
| Fig. 6.12. ?�?�?�?????�?? ?�?????????�?????? ?�???�????????: 1 ??� ???????�???� ?�?�?�???� ???????????????????????� ?�?????????�????; 2 ??� ?�???�???�??; 3 ??� ?�?�?�???? ???????????????????????� ?�?????????�????; 4 ??� ?????�???�?????�?�?�?????�?? ?????????�?�?????�; 5 ??� ?????????�???? ???�???�?????�?? ?????�?????�?? ???�?�?????????? ?�?????????�???????? ?�???�?????????�; 6 ??� ?????????�???? ?�?�?????�?? ?????�?????�?? ???�?�?????????? ?�????-?????�???????? ?�???�?????????�; 7 ??� ???�?�?????�?? ?�?????????�?????? ?�???�????????; 8 ??� ???????� ?????�???�?�?????? ?�?�?�???� ????????????????????-???� ?�?????????�????; 9 ??� ?�???�???????????�?�???????? ???�???�?� (???� ?�???�???????�???�???�, ???�?????????????�?????�?� ?�???�???�?�??????????-?????�?????? ???????�?�?????? ?�?????????�????)
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?�?�?�?????�?? ?�?????????�?????? ?�???�???????? ???????�?�?�?? ???� ??????. 6.12 . Withdrawal ???????????�?� ?????�?????????�?? ?�???�???�??. ?�?�?�???�?????????�?� ???????�?�???�???�?? ???�?�???�?? ???�?�?�?????� ???????????? ?�?????????�?????? ?�???????????�??. ???�?????�?????????�?� ?�?????????�???�?� ?�?????�???????????????� ???� ???�?�?????????? ?�?????????�???????? ?�???�?????????� ?? ?�?�?????????�?� ???�???�?????�???? ?�?�?�?????�???????�?�?????????? ?�?�???�???????�????.
A WARNING ?????? ???????�???? ???�?�?????????? ?�?????????�???????? ?�???�?????????� ???� ?????????????�???�?� ???�???�?????�?� ???�?? ?????????�?�???�?????? ?�?????????�???�?� ?�?????�??????????????????. ???� ?????????????�???�?� ???????�???�?????? ?�?????????�?????? ?�???????????�?? ???� ?????????�?�???�???� ???�?�?�?�??, ?�?�?? ???�?? ?????� ?????�?�?� ?????????�?????�?? ?�?�?????????�?????�?????� ?????????�?�???� ?????�?????�. ?????? ???????�???�?????? ?�???????????�?? ???� ?�?�?????????�?????�?????� ?????????�?�???� ?????�?????� ???�???�???�?�?????? ?????????�?� ?�?� ??????????. ?�?�?? ?????�?????�?????�?�?�?????? ???�?�?�?????� ?�???????????�?? ???�?�???????�?� ?????�???????�?????? ?�?????�?????????????????? ???�?�???????? ???�?? ???�?�?�?�?�???�????. ???????????�?� ???�?�?????�?? ?�?????????�?????? ?�???�????????, ???�???�???????? ???�?????? ???????�?�?? ?�???? ?????�???�?�??????. |
Dismantling ???????????�?� ???????�???? ?�?�?�???� ???????????????????????� ?�?????????�???? ?? ???�?�???�?� ?�?????????�?????? ?�???????????�?? ?? ???????????�?????�?�???????? ?�?????????�??.
| Fig. 6.13. ???�???????�?�?????�?????� ???????�?� ?????�???�?�?????? ?�?�?�???� ?? ???�?�?????????? ?�?????????�???????? ?�???�??????????
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???�???�???????�?� ???????� ?????�???�?�?????? ?�?�?�???� ?? ???�???�?�???�?� ?�?�?�???? ???� ???�?�?????????? ?�?????????�???????? ?�???�?????????� ( ??????. 6.13 ).
| Fig. 6.14. Removing retaining ring
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?�?????�?�???? ???????????�?� ???�?????????????� ?????�???�?? ( ??????. 6.14 ). ?�?�?????�?� ?????????�???? ???�???�?????�?? ?????�?????�?? ?�???�?????????�. ???�???�???�?????? ?????????????�?� ?????????�???? ?�?�?????�?? ?????�?????�?? ?? ???�?????�?� ?�???�???????????�?�???????? ???�???�?�. ?�?�?????�?� ?????????�???? ?�?�?????�?? ?????�?????�??.
NOTE ???????????? ???�???�?????�?? ?? ?�?�?????�?? ?????�?????�?�?? ?�???�?????????� ???� ???�?�?�?????�???�?�. |
Technical condition ?????????�?????�?� ?????�?????�?? ?�???�?????????� ???� ???�?�???�???� ???�?�?????? ???????????�????, ?�?�?????????? ???�?? ?????????? ???� ???????�???�???????�???�. ?????????�?????�?� ???�?�?????�?? ?�?????????�?????? ?�???�???????? ???� ???�?�???�???� ???�???????� ???�?? ?????????�?�???�??????. ?????? ???�???�?�?????????????�?? ???�?????�???�?� ???�?? ?�?�???�?????�?� ?�???�????????. ?????????????�?� ?�?�???????�???�?????�?� ???�?�?�?�?? ?????????�????.
NOTE ?????? ???�?�???�???? ?????????�?�???�?????? ?�?�?????�?�?� ?�???�?????????� ?�?�???�?????�?� ???�?�?????�?? ?�?????????�?????? ?�???�???????? ?? ???�?????�. |
Assembly ???�???�?????�?� ?�?????????�?????? ?�???????????�?? ?�???�?�???�?????? ???�?????? ???� ???�?�?????????�?� ???�?�?�?�?? ???????????�?? ?? ?????�???�?????�?�?�?????�?� ?????????�?�??????.
| Fig. 6.15. ?????????????? ?????�?�?????????? ???????????�?? ?? ???�?�?????�?? ?�?????????�?????? ?�???�????????
|
?????�???????�???? ?????�?�?????�?� ?? ?�???�???????? ???????�?????� ?? ????????????, ???�?�?????�?�???? ???� ?????�?????�???????� ?????�???�?�?????� ( ??????. 6.15 ). ???�???�???�?????? ???�???????�?� ???????????? ?? ?�???�???????? ?? ?????�?�?????????�?� ?? ???????�???�???? ?�???�?????????� ???�?????????????� ?????�???�??.
| Fig. 6.16. ?????�?�?????????� ?�???�???????????�?�?????????? ???�???�?�?� ?? ?�?????????�?????? ?�???�????????: 1 ??� ?�???�???????????�?�???????? ???�???�?�
|
???�???????�?� ???????????? ?? ?�???�???????? ???? ?????????� ???�???�???�?????? ?? ?????�?�?????�?� ?�???�???????????�?�???????? ???�???�?� ( ??????. 6.16 ) (?�???�?????? ???� ?�???�???????�???�???�, ???�?????????????�?????�?� ?�???�???�?�???????????????�?????? ???????�?�?????? ?�?????????�????). Setting ?????�?�?????????�?� ???�?�?????�?? ?�?????????�?????? ?�???�???????? ???� ???�???????????�?? ???????�???�?�?�?? ?�?????????�????. ???????????�?????????�?� ?? ?�???�?????????? ?�?????????�???�?� ?�?????�???????????????�.
A WARNING ?�?�?�?�???�?� ?�?????????�?????? ?�???????????�?? ?? ?�?�?�???? ?? ?????�?�???�?� ?????�?????� ???� ???????????????????????� ?�?????????�????. |
?????�?�?????????�?� ???�?� ?????�???�?????�?�?�?????�?� ?????????�?�?????? ?�?�?�???�. ?????�?�?????????�?� ???� ?�???�???????? ?�?�?�???? ???????????????????????� ?�?????????�????.
?�?�?????�???�???? ???�???�?�?????? ?�?�?????�???�???? ???�???�?�?????? ???�???�???� ???�?? ???�???????�???�?�?�?????? ???�???�?�?????? ?�?????????�?????? ?�???????????�?? ?? ?�?????????�???�?� ???�?�?�?????�???�?� ???�???�???????� ?? ?�?�???????� ?????�?�?? ?? ?�?�?�???? ???????�???�?????? ???�?�?�???�???????????�?? ?�?????????�?�?????? ?? ?????�?????�?????�?�?�?????? ?????�?�???�?????�???�???????? ?�?�???????????????? ?????�?�??. ?�?�?�?�???????� ???�?????�???�?????� ???�???�?�?????? ???� ?????????????�?�?�????, ?�?�?? ???�?? ?�???? ???�?�???�?????????????�???????�?? ???�?????????�?????�???�?????? ?�?�?????????� ???� ?????�?????�?????????? ???�?�???�?�?????? ?�???? ???????�?????� ?????? ?????�?�?????????�. ?�?�?????�???�?????� ???�???�?�?????? (???? ???????????? ???�?? ???�?�???????? ?�?????????�???????? ???�?�?�?????�???� ?�?�???????� ?????�?�??) ?????�?�???????�?�???� ???� ???�?�???????? ?�?????????�?????? ?�???�?????????�. Technical condition ?????????�?????� ?�?�?�?????�?�?????????? ???????�?????????? ???�?????�???�?????� ???�???�?�?????? ?????�?�???� ?????????�?????????�?????? ?? ?????�?????????� ???�?�???�???? ?�?�?�?????�?�?????????? ???�???�???�?????�?????? ?�???�???????�???�?�?? Hyundai. ?�?�?? ?????????�?????? ?�?�?�?????�?�?????????? ???????�?????????? ???�?????�???�?????� ???�???�?�?????? ?????????�???�?????�???? ???????�?????�?????�?� ???�???????�?�???�.
???????????�???�?� ?�?????�???????????????�
| Fig. 6.17. ???????�???????????????� ???????�?????� ???????????????????????� ?�?????????�???? ???�???�???????� ?????�?�?? ?�???�???????�???�?�?? ?�?�?� ?�???�???�?�???????????????�?????? ???????�?�???� ?�?????????�????: 1 ??� ?�?????????�?????? ???�?�???? ?�?�???????? ???�???�?????�???? ?????�?�???�; 2 ??� ?�?????????�?????? ???�?�???? ?????�???????? ???�???�?????�???? ?????�?�???�
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| Fig. 6.18. ???????�???????????????� ???????�?????� ???????????????????????� ?�?????????�???? ???�???�???????� ?????�?�?? ?�???�???????�???�?�??, ???�?????????????�?????�?� ?�???�???�?�???????????????�?????? ???????�?�?????? ?�?????????�????: 1 ??� ?????????�???�???�?�???????? ?�?�???? ?�???�???�?�???????????????�?????? ???????�?�???� ?�?????????�????; 2 ??� ???????????�?�???? ?????�???�?�?????? ?????????�???�???�?�?????????? ?�?�?????� ?�???�???�?�???????????????�?????? ???????�?�???� ?�?????????�????; 3 ??� ?�?????????�?????? ???�?�???? ?�?�???????? ???�???�?????�???? ?????�?�???�; 4 ??� ?�?????????�?????? ???�?�???? ?????�???????? ???�???�?????�???? ?????�?�???�
|
???????�???????????????� ???????�?????� ???????????????????????� ?�?????????�???? ???�???�???????� ?????�?�?? ?�???�???????�???�?�?? ?�?�?� ?�???�???�?�???????????????�?????? ???????�?�???� ?�?????????�???? ???????�?�?�???� ???� ??????. 6.17 . ???????�???????????????� ???????�?????� ???????????????????????� ?�?????????�???? ???�???�???????� ?????�?�?? ?�???�???????�???�?�??, ???�?????????????�?????�?� ?�???�???�?�???????????????�?????? ???????�?�?????? ?�?????????�????, ?????�?????�?�???�?�???� ???� ??????. 6.18 .
?????????�?????� ?�?????�?????????????????? ?? ???� ?????�???????�?????? ?�?�?� ???????�???? ?? ?�???�???????�???�?? ?�?�?? ?????�?????????�?�???�?????? ?????�?�?�?????????? ???�???�?�?� ?�?????????�?????? ???????�?�???� ?�?�?�?�?�?�?????? ?????????�?????�?� ???????�?????????� ?????�?� ?�?????�?????????????????? ?? ?????�???????�??????, ???�???�?�?�?? ???????�???� ?????????�?????� ???� ???�?�???????�?�?�: ??� ???�?�?�?�?�???�?�???????� ?�?????�???????????????� ???� ?????�?�???� ?????�?�?? ?�?�?�??????, ?�?�???�??????, ?�?�??????????, ?�???�???????�?� ???�?�-?????? ???????????�???? ?? ?????�?�???� ?�?�?�?? ???�???????�???�?�???� ?????�?�?? ???� ?????�???�?� ????????????, ?????�?????�?� ?????????� ???� ?????????�?????�??; ??� ?�?????????�?????? ???�?�???? ?????�?�?�?? ?�?�?�?? ???�?�???�???�?�??, ???� ?????�?�?? ???�?????�?????? ?? ?�???�?�????. ???�?�???? ?????�?�?�?? ?�?�?�?? ???????�???? ?�?�???�?�?�?? ?? ???�???????�?�???????�?�. ?�?�?�???�?� ???�???????�?�?????????? ???�?�?????� ???� ?????�?�???� ?????�?�?? ?????????�?�???�??????. ?�???�?? ?????? ???�?�?�?�???? ???� ???�???�?�?? ?�?????????�?� ???�?�???? ???�?�???????�?�?�????, ?�???�?�???�, ?????????�???� ?????�?? ????????????. ?????? ???�???�?????�?�?????? ?�???�?????? ???� ???�???� ???�?�?�???�???? ???�?�???? ???�???�?�?????????? ?�?�???�?????�??. ???� ???�?�?????? ???� ?????�?�???� ???????�???�?�?? ???????�???�?�?????�?� ???�???�?� ?? ?????�?�????, ???�???�???????????�???� ???�?�??????; ??� ?????� ???????�?� ?????�???�?�?????? ?�?????�?????????????????? ?????�?�???� ?�?�?�?? ?�?�?�?�???? ?? ?�?????????? ?�?�?????�???�?�???�. ?????�?�?�?�?�?????� ?????�???�?�?????? ???�?? ???�?�???????�?????� ???????� ???????????????� ?? ?????�???�?�???? ?�?????�??????????????????, ?????�?????�?? ???�?�?�???�?�?� ???� ?????�????????; ??� ???� ?????????????�?�?�???? ???�?�?�???� ?�?????????�?????? ?�???????????�?? ???� ?????�???????�?????? ???�?�?????????? ?�???�?????????� ?? ?�?????�???????????????�???? ?? ?�?�?�??????. ?????? ???�???�?????�?�?????? ???�?????????�?????????�?�?? ?�?�???�?????�?� ?????????�?�???�?????�?� ???�?�?�?�?? ???????�????. ?�???�?????� ???�?�?????? (???�?�?�???????????? ???� ???� ???????�??????????) ?�?�???�???????�?� ???????�???? ???????�?� 120 ?�?�??. ???? ???????�?�???� ???�?? ???????�?� 5 ?�?�?� ?????????�???�?�?�?�???? ?�???�???????�???�??, ?�?�???�?� ?????�?????????�?????�?? ?????�?�?�?????�?� ???�?�???�???� ???�-?�?� ???�?�???�?????? ???�?�?????�.
A WARNING ???� ?????????????�???�?� ???????�?????�?????? ?�?????????�?????? ?�???????????�?? ???� ?????????�?�???�???� ???�?�?�?�??, ?�?�?? ???�?? ?????� ?????�?�?� ?????????�?????�?? ?�?�?????????�?????�?????� ?????????�?�???� ?????�?????�. ?????? ???????�???�?????? ?�???????????�?? ???� ?�?�?????????�?????�?????� ?????????�?�???� ?????�?????� ???�???�???�?�?????? ?????????�?� ?�?� ??????????. |
NOTE ???�???�?? ?????�???????�?????�?? ?�?????�?????????????????? ?? ???�?�???????? ???????????????????????� ?�?????????�?????? ???????�?�???� ???�?�?????�?�???? ?? ???�?????�???�?????? ???� ?????�?� ???�?�?�?�???� ???�?�?? ?? ???????????� ???????�?????????????� ?�?�???�???�. |
Withdrawal ?�?�???�???????�?� ?�?????????�???�?� ???�?�?????? ???? ???�?�???�???? ?????????�?????�??????, ?�???�?�?????�???? ?? ???�?�???�???? ???????�?�???�?????? ?�?????????�?????? ?�???????????�??. ?�?�?? ???�?????�???????�?????? ?�?????????�???�?� ???�?�???????? ???� ?�?????????�???�?� ?�?????�?????????????????? ?????????�???�?????�?� ?????�?�???�?�?????�?? ???�???� ???�?? ???�???�?�??????.
| Fig. 6.19. ???????�???� ?�?�?�?????� ?????�???�?�?????? ?�?????????�???????? ???�?�?????�: 1 ??� ?�?????????�?????? ?�?????�??????????????; 2 ??� ?�?�?�????; 3 ??� ?�?????????�?????? ???�?�????
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?? ?????????�???? ???�?????????????�?�?�?? ???�?? ?????�???�???� ???????????�?� ?�?�?�???? ?????�???�?�?????? ???�?�?????� ( ??????. 6.19 ). ???????????�?� ?�?????????�?????? ???�?�????. Technical condition ?????????�?????�?� ?�?????????�???�?� ?�?????�???????????????� ???� ???�?�???�???� ?�???�?�????, ?????�?�?????? ?? ???�?�?????? ???????????�????. ?????????�?????�?� ?�?????????�???�?� ???�?�?????? ???� ???�?�???�???� ?�???�?�????, ?????????�?�???�?????? ?? ???�?�?????? ???�?�?�???? ?�?????????�?????? ?�???????????�??. ?????????�?????�?� ???�?????? ???�???�?�?????? ?�?????�?????????????????? ???� ???�?�???�???� ?????????�?�???�?????? ?? ???�?�?????? ???�?�?�???? ?�?????????�?????? ?�???????????�??. Setting ?????�?�?????????�?� ?�?????????�?????? ???�?�????, ???� ?????????????�?? ?�???? ?????????�?????�??????. ???????????�???�?� ?�?????�???????????????� ?????�?�???�???�?????�???�?� ?�?�??, ?�?�???�?� ?????? ???� ???�???�?�?????? ?????�???�?� ???????????? ?�?�???�?�?�?�?�?�???� ???�?�?�?�?�??, ?????�?????�?� ???????? ?? ???????????�???�?� ?�?�???�?�??. ?????????�???�???�?� ???�???????�?�?????? ?�?????????�???????? ???�?�?????� ?? ???�?�???? ???????????�?�?????�. ?????�?�?????????�?� ?�?�?�???? ?????�???�?�?????? ???�?�?????�. ?�?�?�???????�?� ???�?????? ???�???�?�???� ?????�???�?�?????? ?�?????????�???????? ???�?�?????�. ?�?�?�?????????�???�?� ???�?????? ???�???�?�?????? ???????�???�???? 13??�17 ???�??, ???�???�?�???� ?????�???�?�?????? ?�?????????�???�?� ???�?�???????? ?? ?????????????�?�?? ?�?????????�???�?� ???�?�?�?????�?????? ???�???�???????� ?????�?�?? ???????�???�???? 25??�30 ???�??. ???????�?� ???????????�???????�?????? ?�?????????�???�?� ???�?�???????? ?????�?�???�?� ?????�?????� ???� ???????????????????????� ?�?????????�????.
???�???�?�?? ?�?????????�?�
| Fig. 6.20. ???�???�?�?? ?�?????????�?�: 1 ??� ???�?????? ?? ?�?????�????????; 2 ??� ???�?????? ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�??????; 3 ??� ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�??????; 4 ??� ???�?????�; 5 ??� ???????�???????�?? ???�???�?�; 6 ??� ?????�???�?? ???�???�???� ???�???�?�?? ?�?????????�?�; 7 ??� ???�???�?�?? ?�?????????�?� (?�???�???????�???�?? ?�?�?� ?�???�???�?�???????????????�?????? ???????�?�???�); 8 ??� ???????? ???�???�?�?? ?�?????????�?�; 9 ??� ???�???�?�?? ?�?????????�?� (?�???�???????�???�??, ???�?????????????�?????�?� ?�???�???�?�???????????????�?????? ???????�?�??????); 10 ??� ?�?�???�?? ???�???�???� ???�???�?�?? ?�?????????�?�; 11 ??� ?�???�?� ?????�???�?�?????? ???�???�?�?? ?�?????????�?�; 12 ??� ?????�?????�?�???�?? ???????�?????� ???�???�?�??
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???�???�?�?? ?�?????????�?� ???????�?�?�???� ???� ??????. 6.20 . Withdrawal ???????????�?� ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�??????. ???????????�?� ?????�?????� ?? ?????? ?�???�???�?�?�?�?? ???�???�?�??. ???�???�???????�?� ???�?????? ?????�???�?�?????? ???�?�?� ???�???�?�?? ?�?????????�?�. ???????????�?� ???�?�?� ???�???�?�?? ?�?????????�?� ?? ???�?????�. Technical condition Check the following: ??� ???�???�???? ???�???�?�?? ???� ???�?�???�???� ???�???????�; ??� ???�???�?�?? ?�?????????�?� ???� ???�?�???�???� ???�?�???????�?�????; ??� ?????�?????�?�?????? ???????�?????? ???�???�?�?? ???� ???�?�???�???� ?????????�?�???�??????; ??� ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�??????.
| Fig. 6.21. ?????????�?????� ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�??????
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???????????�?????????�?� ???????�?�?? ?? ???�???????�?? ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�?????? ?? ???�?�?????�?�???? ?? ???�?????�???�?????? ???�???�???� ???�?�???�?????�?�???????? ?�?�???? ??????. 6.21 ). ?�???�?? ?�?�???? ???�?�???�???�?�?�???? ?????? ???�?�?�?�???? ?�???�???�?�?�?�?� ???�???�???�?�?�?�?�?? ?? ?????????�?�???�???�?????�?�?�???? ?????? ???�???�?�?�?�???? ?�???�???�?�?�?�?�, ???�???�???�?�?�?�?�?? ?????????�?�?� ?�?????????�?�?????? ?????????�???�?? (????. ??????. 6.21 ). Setting ?????�?�?????????? ???�???�?�?? ?�?????????�?� ???????????????�?� ?? ?????????????�, ???�???�?�?????? ???????�????.
NOTE ?�?�?????�?????�?� ?????? ?�???�???�?�?�?�?? ?????�?????�????. ???�???�?????�?� ???� ?????? ?????�?�???? NGLI No.2. |
Install the brake pedal assembly, tighten the nut with a fillet (nuts brake servo) and the pedal bolt. Turn the brake. Adjust the height of the brake pedal on the floor and the free travel.
Front wheel brake
| Fig. 6.22. Front wheel brake: 1 - a bolt of fastening of a brake hose; 2 - a brake hose; 3 - caliper brake with the brake pad guide assembly; 4 - Disc; 5 - a nut wheel; 6 - screw fixing brake-foot drive to the hub; 7 - the screw fastening guard
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Front wheel brake disc, with automatic adjustment of the gap between the pads and the disc, with floating caliper and brake pad wear warning device. The bracket is formed caliper and wheel cylinder that bolts are tightened. The movable bracket is bolted to the fingers, which are installed in the openings of the guide brake pads. To guide slots brake pads preloaded springs. Inner shoe is equipped with a signaling device wear pads. In the cavity of the brake cylinder piston is mounted with the sealing ring. Due to the elasticity of the ring supports the optimum gap between the pads and the disk.
Removing and installing brake pads Withdrawal
| Fig. 6.23. Position brake caliper when removing brake pads
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Remove the bolt caliper lower guide pin, turn up and hang the caliper to the car body on the wire or other method (Fig. 6.23). Remove the brake pads.
A WARNING | Fig. 6.24. Brake pads front wheel
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When removing the brake pads do not press the brake pedal (Fig. 6.24). |
Technical condition Check the brake pad wear and replace them if necessary. Replace pads in the following cases: - Thickness of frictional overlays of less admissible; - The surface of the lining zamaslena; - Friction pad loosely connected to the base block; - Linings have deep grooves and chips. Check block damage or deformation. Nominal thickness of the friction linings of brake pads 9 mm, the maximum allowable for the wear - 1 mm.
WARNINGS Replace pads in brake mechanisms of both front wheels simultaneously. It is not permitted for replacing internal and external pads to each other, as well as between the left and right wheels. This can result in uneven braking. When replacing brake pads check the pads for deformation. The retaining spring guide pins, replace or install a new reusable spring by clearing them from contamination. |
Setting Install the retaining spring pad.
| Fig. 6.25. The retaining spring brake pads
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NOTE Pads installed so that the wear indicator on the terminal side of the piston facing upwards. |
| Fig. 6.26. Retraction of the piston inside the cylinder with special tool 09581-11000
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After installing the pad before you move the caliper to the working position, drown the piston inside the cylinder with special tool 09581-11000 (Fig. 6.26).
| Fig. 6.27. Brake pads with pads: 1 - installation kit inner brake pad; 2 - installation kit outer brake pad; 3 - Laying the outer brake pad; 4 - an external brake shoes; 5 - inner brake pad wear sensor; 6 - a lining inside of the brake shoe; 7 - a cover lining the inner brake pad
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A WARNING Do not allow grease on the brake discs and pads. |
| Fig. 6.28. Tightening the guide pin
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Screw the guide pin bolt caliper and tighten it with a torque wrench (Fig. 6.28).
Removing and installing brake Withdrawal Remove the wheel.
| Fig. 6.29. Fittings head brake hose: 1 - a brake hose; 2 - brakes; 3 - the seals; 4 - bolt head hose to the brake mechanism
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WARNINGS Do not spill the brake fluid on the details of the car. It can damage the paintwork of the body. If the liquid gets on the paint body wash immediately with water. To prevent the Strait of brake fluid hose connections, wrap a cloth or tissue. |
Remove the bolt cylinder.
| Fig. 6.30. Elements of the front wheel brake 1 - a support; 2 - calliper
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Remove the caliper and brake pads from the calliper (Fig. 6.30). Remove the calliper mounting bolts to the steering knuckle. Remove the calliper. Technical condition Check the following: - Support for wear, damage, cracks; - A piston for dust, damage, cracking and wear of the outer surface; - Plug and guide pin for damage and dust; - Springs and protective caps pad for damage; - The calliper for damage, dust, cracks and wear.
A WARNING Do not use sandpaper to clean the surface of the piston cylinder. All rubber parts are replaced with new ones. |
| Fig. 6.31. Checking the technical condition of the brake disc
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Check brake disc with calipers and the indicator (Fig. 6.31). Nominal thickness of the brake disc (checked using calipers) must be 19 mm, the minimum allowed for the wear - 17 mm. The difference in the thickness as measured at various locations disc should not exceed 0.01 mm. The axial run-out of the working surface of the disk (checked using dial dial indicator) must not exceed 0.04 mm (see. Fig. 6.31).
NOTE Using a micrometer, the thickness of the brake disk check at eight points spaced approximately 10 mm from the edge of the disc in increments of 45 ?�. Determine the difference in thickness of the disk as the difference between the largest and smallest thickness. To measure the axial run-out of the working surface of the disk secure dial dial gauge approximately 5 mm from the edge of the disc and turn the dial to 360 ?�. |
Determine the axial runout of the working surface of the disk as the difference between the highest and lowest values of the heartbeat. Installing the brake Installation of the brake mechanism spend in reverse order, with the following. Do not allow grease or oil to the working surfaces of brake pads and discs. Tighten bolts to torque the brake. Connect the brake hose to the hydraulic cylinder brake installing new seals. Bleed the brakes. Disassembly and assembly of the brake mechanism Dismantling Remove the dust cover of the piston.
| Fig. 6.32. Removal of the piston cylinder with a source of compressed air (to prevent damage to the piston when the outlet of the cylinder on the caliper wooden ledges gasket)
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Remove the piston from the cylinder, the cylinder having submitted compressed air (Fig. 6.32).
WARNINGS When pushing the piston with compressed air from a blow Watch your fingers. Do not spray the brake fluid. |
Use a screwdriver to remove the cylinder piston o-ring, being careful not to damage the surface of the cylinder. Assembly All parts except the brake pads and linings, rinse with isopropyl alcohol. Install the O-ring of the piston in the cylinder, apply a pre-ring lubricant for rubber parts. Grease for the rubber parts in the caliper bore, the outer surface of the piston and the piston case.
| Fig. 6.33. Installation of the piston with a protective cover in the support cylinder
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Install a protective cover on the piston as shown in Fig. 6.33. Get flanging piston cover into the inner groove of the caliper and move the piston in the caliper (see. Fig. 6.33). Lubricate rubber parts for the outer surface of the sleeve and direct-conductive pin into the hole for pin and bushing in a support in the toe cap and the cap sleeve.
| Fig. 6.34. Install protective caps on the sleeve and a support pin
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Get flanging of the cap in the groove of a support (Fig. 6.34). Install the brake pads.
NOTE Do not let any grease on the running surfaces of the brake disc and pad. |
Rear brake
| Fig. 6.35. Rear brake: 1 - the mechanism of automatic adjustment of the gap between the drum and shoes; 2 - the top coupling spring pad; 3 - the lever mechanism for automatic adjustment of the gap between the drum and shoes; 4 - spring mechanism of automatic adjustment of the gap between the drum and shoes; 5 - a washer; 6 - the bottom coupling spring pad; 7 - spring guide; 8 - the brake pads; 9 - Stand spring guide
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Rear brake drum, with automatic adjustment of the gap between the pads and the drum. An automatic gap adjusting arranged separately from the wheel brake cylinder not directly connected with hydraulic brakes. Removing and installing brake Withdrawal Release the parking brake. Remove the wheel and brake drum.
NOTE | Fig. 6.36. Screw fixing brake drum: 1 - the screw of fastening of a brake drum; 2 - brake drum
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To remove the brake drum Remove the screw securing (Fig. 6.36). |
| Fig. 6.37. Elements of the rear wheel brake 1 - the wheel cylinder; 2 - the lever mechanism of automatic adjustment of the gap between the drum and shoes; 3 - a spring mechanism for automatic adjustment of the gap between the drum and shoes; 4 - brake shoes; 5 - the bottom coupling spring pad; 6 - washer, spring guide and spring strut; 7 - a mechanism for automatic adjustment of the gap between the drum and shoes; 8 - the top coupling spring pad
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Remove the spring and lever mechanism of automatic adjustment of the gap between the drum and shoes (Fig. 6.37). Remove the rack guide spring washers, spring guide pads and rack guide spring (see. Fig. 6.37). Push the brake pads and remove the adjustment mechanism (see. Fig. 6.37).
| Fig. 6.38. Removing the brake pad: 1 - the brake pads; 2 - the parking brake lever; 3 - the parking brake cable
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Remove the upper and lower locking spring pads, disconnect the cable from the parking brake lever (Fig. 6.38). Technical condition
| Fig. 6.39. The circuit measuring the internal diameter of the brake drum
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With the help of the indicator check radial runout of the brake drum. Nominal diameter of the brake drum, mm: cars without antilock brake system ..... 180 vehicles equipped with anti-lock brakes ..... 203.2 Maximum permissible diameter of the brake drum, mm: bezantiblokirovochnoy vehicles brake system ..... 182 vehicles equipped with anti-lock brakes ..... 205.2 Maximum permissible radial runout of the brake drum of 0.05 mm. Check the thickness of the friction brake linings. Nominal thickness of the friction linings of brake pads should be 5.14 mm, the maximum allowable thickness - 1 mm.
| Fig. 6.40. Checking the fit of the brake pads to the drum
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Check the outer surface of the wheel brake cylinder for wear or damage. Check shield brake for wear or damage. Setting
| Fig. 6.41. Places lubrication
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Apply universal grease SAE J310, NGLI No.2 in the contact Brake colo-dock and shield of the brake mechanism, as well as the contact of brake pads and the lower support (Fig. 6.41). Connect the cable to the parking brake lever. Install the brake pads and spring guide. Establish a mechanism for automatic adjustment of the gap between the drum and shoes and shoe return spring. Install the lever and spring mechanism for automatic adjustment of the gap between the drum and shoes. Install the brake drum and several times fully tighten the parking brake system.
A WARNING Do not allow grease and other contaminants on the working surface of the brake drum. |
NOTE | Fig. 6.42. Driving measure the outside diameter of the brake pads
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Before installing the brake drum, check the outer diameter of the brake pads (Fig. 6.42) (if installed blocks). |
The outer diameter of the brake pads vehicles without antilock brake system (drum diameter of 7 inches) must be 179,5-179,0 mm; vehicles equipped with anti-lock brakes (drum diameter of 8 inches) - 202,2-201,7 mm. Adjust the gap between the pads and the drum by pressing on the brake pedal with a force of 10 kg more than 20 times. Disassembly and reassembly of the brake cylinder Remove the brake pads. Disconnect the brake pipe from the cylinder.
| Fig. 6.43. Bolts wheel brake cylinder (view from the back of the sheet brake)
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| Fig. 6.44. Brake cylinder: 1 - body brake cylinder; 2 - a spring; 3 - bleeder valve hydraulic drive of brake system; 4 - O-ring; 5 - the piston; 6 - piston cap
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Remove the piston and the seal of the piston (see. Fig. 6.44). Before assembling the wheel cylinder, check: - Cylinder and piston for wear, damage and dust; - Cylinder body for damage and cracks; - The bearing surfaces of the pistons and pads for wear; - Spring piston to reduce stiffness. Reassembly is the reverse order.
NOTE Before assembly, wash the cavity of the cylinder and the internal parts of isopropyl alcohol. Apply a sufficient amount of brake fluid to the pistons and seals the cylinder wall. Always replace seals and protective caps with new ones. |
A WARNING Make sure that from the bleeder not dropped the ball. |
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