BENDIX BW7308 Manuel d'utilisateur télécharger pdf (Page 24)

5.4 SPRING OR SERVICE BRAKE

 CAUTION: Follow all safe maintenance

practices, including those listed on page two of

this document. Park the vehicle (by other means

than the foundation brakes) on level ground and

chock the wheels.

 Use the spring brake manufacturer’s recom-

mended safety practices in all cases.

6RPH VSULQJ EUDNH DQG YHKLFOH PDQXIDFWXUHUV

SHUPLW FDJLQJ WKH VSULQJ EUDNH ZKLOH WKH VSULQJ

EUDNHLVHQJDJHG

THE FOLLOWING INSTRUCTIONS ARE FOR BENDIX

BRAND PISTON-STYLE ACTUATORS.

 :LWKWKHYHKLFOHRQDOHYHOVXUIDFHDQGWKHZKHHOV

SURSHUO\FKRFNHG DSSO\DLU WRUHOHDVH WKHVSULQJ

EUDNHVSDUNLQJEUDNHVE\XVLQJWKHGDVKPRXQWHG

DLUFRQWUROYDOYH%DFNRXWWKHUHOHDVHEROW)LJXUH

DUURZ³'´XVLQJDPD[LPXPWRUTXHRIIWOEV

1ÂPWRFDJHWKHDLUUHOHDVHGVSULQJIRUFHRQ

WKHSXVKURG

18/1

FIGURE 43 - ACTUATOR SPRING CAGING AND REMOVAL

 ([KDXVWWKHDLUIURPWKHEUDNHFKDPEHUVE\XVLQJ

WKH GDVKPRXQWHG DLU FRQWURO YDOYH  :LWK DOO DLU

SUHVVXUHGUDLQHGIURPWKHV\VWHPGLVFRQQHFWWKH

DLUKRVHVIURPWKHEUDNHFKDPEHU:KLOHVXSSRUWLQJ

WKHEUDNHFKDPEHULQSRVLWLRQUHPRYHDQGGLVFDUG

WKH EUDNH FKDPEHU PRXQWLQJ QXWV )LJXUH 

DUURZVPDUNHG³%´5HPRYHWKHEUDNHFKDPEHU



5HLQVWDOODWLRQ%HIRUHLQVWDOOLQJWKHEUDNHFKDPEHU

WKHDFWXDWRUÀDQJH(See Figure 46, arrow “C”)PXVWEH

FOHDQHGDQGLQVSHFWHG&RQVXOWWKHYHKLFOHPDQXDO

7KHVSKHULFDOFXSLQWKHOHYHUPXVWEHJUHDVHG

ZLWKZKLWHJUHDVH3DUW1R

RU.

$GGJUHDVHWRWKHUXEEHUJDVNHWRQWKHFKDPEHU

CAUTION: Do not use grease containing molybdenum

disulfate.

 7KHVHDODVZHOODVWKHSXVKURGDUHDPXVWEH

FOHDQDQGGU\

FIGURE 44 - SPRING BRAKE INSTALLATION

CAUTION: Do not use brake chambers with seals that

have a thickness less than 0.12 in. (3 mm). Use only

actuators which are recommended by the vehicle

manufacturer.

 ,QVWDOO WKH EUDNH FKDPEHU XVLQJ QHZ VHOIORFNLQJ

QXWV(1,62$OWHUQDWHO\WLJKWHQERWKWKH

QXWVVWHSE\VWHSXSWRD¿QDOWRUTXHRIIWOEV

1ÂPBendix strongly recommends

that new nuts be used.

 5HFRQQHFWWKHDLUKRVHVDQGEHVXUHWKDWHDFK

KRVHLVQRWWZLVWHGRULQFRQWDFWZLWKPRYLQJYHKLFOH

FRPSRQHQWV7KHDLUKRVHURXWLQJPXVWDOORZIRUIXOO

FDOLSHUWUDYHO1RWH WKDWIRUVSULQJ EUDNHVHUYLFH

FKDPEHUVWKHSRUWVDUHLQGLFDWHGE\³´6HUYLFH

%UDNH3RUWDQG³´6SULQJ%UDNH3RUW

FIGURE 45 - PORT DESIGNATIONS

1RWH  :KHUH D QHZ VSULQJ EUDNH FKDPEHU LV EHLQJ

LQVWDOOHGQRWHWKDWLQVRPHFDVHVGUDLQSOXJVDUHLQVWDOOHG

(See Figure 43, arrows marked “A”). :KHUHGUDLQSOXJV

DUHSUHVHQWDIWHU LQVWDOODWLRQUHPRYH ZKLFKHYHUSOXJ LV

DWWKHORZHVWSRVLWLRQ7KHVHOHFWHGGUDLQKROHPXVWEH

DOLJQHGGRZQZDUGVRUZLWKLQZKHQLQVWDOOHGRQWKH

YHKLFOH,QWKHFDVHRIVSULQJEUDNHFKDPEHUVLQVWDOOWKH

SDGVEHIRUHXQFDJLQJWKHVSULQJ

 %HIRUHUHWXUQLQJYHKLFOHWRVHUYLFHZLWKWKHV\VWHP

SUHVVXUL]HG XVLQJ D VRDS VROXWLRQ FKHFN IRU DLU

OHDNDJH 0LQLPDOOHDNDJH LQ WKHDUHD DURXQG WKH

GLDSKUDJPLVSHUPLWWHG6&&0DQGDRQHLQFK

EXEEOHLQRQHPLQXWHDWWKHKRVH¿WWLQJLVDFFHSWDEOH

,IDEQRUPDOOHDNDJHLVGHWHFWHGWKHGLDSKUDJPPXVW

EHUHSODFHGRU¿WWLQJDGMXVWHGUHVSHFWLYHO\

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BENDIX BW7308 Manuel d'utilisateur Page 24

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