| 摘要 |
The brake shoe webs of a drum brake have apertures provided adjacent the shoe ends which engage the adjusting screw. The ends of the adjusting screw spring are so shaped that they can extend through the apertures with a reverse bend of generally V configuration, causing the terminal ends of the spring to move outwardly to hook on the opposite side of each shoe web from the main spring body. A pair of spaced, axially parallel notched shafts are provided as parts of a tool for installation. The shafts receive the spring hooked ends in the notches, move apart along the axis of the spring coiled body section to tension the spring and to align the spring hooked ends with the shoe web apertures. The shafts are then moved axially to push each spring end through its aperture. The shafts are then retracted, leaving the spring hooked ends attached to the shoes.
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