Piston wrist pin installation and removal device and method of u

Details Piston wrist pin installation and removal device and method of u Piston wrist pin installation and removal device and method of u

1987-05-05

1989-08-01

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

294265, 29234, 29255, 29272, 29275, 29283, 295251, B23Q 100

Patent

active

048522317

ABSTRACT:
A device for installation and removal of a wrist pin from a piston includes a press pin having an upper end for engaging a hydraulic ram and a lower end section of reduced diameter which engages into the bore of the upper end of a wrist pin. The lower end of the wrist pin is engaged by an end section of reduced diameter of a guide pin, the end section of reduced diameter having at least one groove encircling its circumference and having an O-ring engaged in the groove. The press pin, wrist pin and guide pin engage together to form a substantially rectilinear rod-like structure, enabling the wrist pin to be inserted through the shaft of the piston and eye of the connecting rod without damage to the shaft.

REFERENCES:
patent: 4050139 (1977-09-01), Okamuro
patent: 4118851 (1978-10-01), DeMartelaere
patent: 4118852 (1978-10-01), Schneider
patent: 4339865 (1982-07-01), Shultz

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