A tool for inserting and removing components, in particular bearings, bushes or the like, particularly in the automotive sector, has a spindle, a first sleeve body having a first ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, a second sleeve body having a second ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, and also a first pressure body and a second pressure body.

A hydraulic cylinder assembly system preferably includes a seal installer tool, a piston puller tool and a barrel ring. The seal installer tool includes a tapered ring and a piston plug. The piston plug is inserted into the piston and seals slipped over the tapered ring. The piston puller tool preferably includes a piston rod engagement member, a thrust bearing retainer, a thrust bearing, a draw rod and a barrel end retainer. The thrust bearing is retained in the thrust bearing retainer and one end of the draw rod is retained in thrust bearing retainer. One end of the piston engagement member is threaded into the thrust bearing retainer. An opposing end of the piston engagement member is threaded into a piston rod. The barrel end retainer is threaded on to an opposing end of the draw rod. The barrel ring is attached to a barrel of a water pump.

Devices and methods for assembling a luer lock fitting (e.g., fitting for use in a hemodialysis and/or a peritoneal dialysis machine) may include a luer lock tool comprising a tool base including a grip portion adjacent a tool portion, the grip portion having an outer diameter and an internal cavity. The tool portion may have an internal cavity and may be configured to selectively receive and retain a male luer lock fitting at a first end of the cavity. A tool cap may have an outer diameter and an internal cavity. The tool cap may include a recessed portion at an end configured to selectively receive and retain a female luer lock fitting. The tool cap internal cavity may be configured to receive at least a portion of the tool portion of the tool base.

Devices and methods for assembling a luer lock fitting (e.g., fitting for use in a hemodialysis and/or a peritoneal dialysis machine) may include a luer lock tool comprising a tool base including a grip portion adjacent a tool portion, the grip portion having an outer diameter and an internal cavity. The tool portion may have an internal cavity and may be configured to selectively receive and retain a male luer lock fitting at a first end of the cavity. A tool cap may have an outer diameter and an internal cavity. The tool cap may include a recessed portion at an end configured to selectively receive and retain a female luer lock fitting. The tool cap internal cavity may be configured to receive at least a portion of the tool portion of the tool base.

A tool for inserting and removing components, in particular bearings, bushes or the like, particularly in the automotive sector, has a spindle, a first sleeve body having a first ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, a second sleeve body having a second ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, and also a first pressure body and a second pressure body.