Automatic slack adjuster assembly

A self-setting Automatic Slack Adjuster assembly connected to brake chamber, comprising of:

• a. a housing (2) with a plurality of bores (a, b and c),
• b. a grooved worm shaft (3) having a plurality of serrations is inserted in bore (a) of the housing (2) with a hexagon nut of the worm shaft arranged in the right side of the assembly,
• c. a worm wheel (16) is inserted in bore (b) of the housing (2) which worm wheel (16) meshes with the said worm shaft (3) mounted on bore (a),
• d. a clutch worm gear (4) also inserted on bore (b) of the housing (2) from the right side of the assembly, and such that worm gear meshes with serrations of worm shaft (3),
• e. a ratchet pinion assembly (14) having clutch worm screw (14a) is inserted into bore (c) positioned on the right side of the housing (2) and is such that the worm screw (14a) of ratchet pinion (14) meshes with the clutch worm gear (4),
• f. a cover plate assembly (19) alongwith a sealing gasket (18) is fixedly screwed onto the front portion of the housing (2) thereby sealing the front portion of housing,
• g. a bearing (5) is inserted into housing bore (a) from the right side of the assembly,
• h. a O-Ring (6) is placed onto the groove of the worm shaft (3), thereby sealing the right portion of housing,
• i. a bearing retainer (7) is inserted from the right side of bore (a),
• j. a grease nipple (12) is fitted to the housing (2) at sideway,
• k. a protective cap (8) is fitted to the right end of the bore (a), thereby protecting the assembly from water and dust, and
• l. the said protective cap (8) is located with grease nipple (12) thereby eliminating the cap (8) from dislocation,
• wherein the cover plate assembly (19) faces the brake chamber mounting bracket and hence only back side of the assembly is exposed to environment attracting water and dust, unlike conventional assembly in which both sides are exposed to environment.