Apparatus for replacing a trunnion bracket spindle

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator

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B23P 1904

Patent

active

047047801

ABSTRACT:
An apparatus and method for replacing trunnion bracket spindles is disclosed. The preferred apparatus comprises a first plate and a second plate, threaded rods extending between the plates, and wing nuts on the ends of the rods to prevent the plates from spreading apart during use. The first plate includes a ram mounting pin to which a hydraulic ram is secured. The hydraulic ram is used to force the old spindle from the bracket bores and to force the new spindle through the bores. Also, the preferred apparatus includes scissor jacks to help position the second plate and ram with respect to the trunk suspension. The apparatus of the present invention is used by cutting out a center section of the trunnion spindle, forcing the remaining sections of the trunnion spindle from their respective bracket bores, and forcing a new trunnion spindle through the brackets bores.

REFERENCES:
patent: 2230918 (1941-02-01), Walter
patent: 2253411 (1941-08-01), Thompson
patent: 2485022 (1949-10-01), Taylor
patent: 3174218 (1965-03-01), McConaha
patent: 3183585 (1965-05-01), West
patent: 3908258 (1975-09-01), Barty
patent: 4120082 (1978-10-01), Bond
patent: 4477956 (1984-10-01), Mefford
patent: 4506501 (1985-03-01), De Vall et al.
Service Bulletin No. V556, Springs, Oct. 1, 1984, Mack Trucks, Inc.

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