| 摘要 |
A puller tool for installing wheel studs in a wheel hub comprises an outer sleeve having an axially extending passage, a washer defining a radial detent shoulder about the passage at one end of the sleeve, an actuating bolt including a threaded shank axially insertable into the passage and an enlarged head that engages the detent shoulder to prevent further insertion of the actuating bolt into the passage, and a puller member insertable into the passage for axially directed travel relative to the sleeve. The puller member is axially slidable relative to the outer sleeve by rotation of the actuating bolt which mates with a threaded hole in the puller member, and the puller member is prevented from rotating relative to the outer sleeve as it travels through a range of axial positions. The puller member includes a threaded stud hole through a stud end thereof for receiving a threaded shaft of the wheel stud, and a threaded bolt hole through an opposite bolt end thereof for receiving the shank of the actuating bolt. When torque is applied to the actuating bolt, the puller member is moved axially in the passage while an end of the outer sleeve or a spacer bears against the wheel hub, whereby the stud is drawn into interference fit within a hole in the wheel hub. Torque is preferably applied to the actuating bolt using an electric, pneumatic, or hydraulic torque wrench for efficient operation. The puller tool is modular in that different puller members and spacers can be provided for use with a standard sleeve and actuating bolt to accommodate different stud threads and lengths.
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