Tool for installing O-rings in an inner diameter of a structure includes a plurality of held in a spaced, fixed parallel relationship to one another. A plurality of guide surfaces are secured with and disposed between the plates. A selectively-actuable finger actuator is disposed to move a plurality of fingers generally radially between the plurality of plates. Each of the plates includes a slot, and a loading pin is configured to be received within the slots. When at least one O-ring is disposed about a plurality of guide surfaces proximal the periphery of the plates, and the loading pin is moved within the slots, the loading pin pulls a loop of the O-rings toward the plate axis. When the loading pin is removed, the finger actuator may be actuated to move the fingers in the generally radial direction to move the at least one O-ring radially outward from the plates.

An installation tool for installing a seal includes a shaft and a seal-engaging component coupled with the shaft. During an installation of the seal, the seal-engaging component is adapted to couple with the seal. The seal-engaging component includes a first surface and a second surface. The seal-engaging component also includes a first annular ring extending from the first surface and adapted to engage with the seal for coupling the seal with the seal-engaging component. The seal-engaging component further includes a second annular ring extending from the first surface. The installation tool also includes a sliding hammer adapted to slide along a length of the shaft. During the installation of the seal, the sliding hammer is adapted to apply a force to the seal-engaging component for installing the seal at a seal installation location.

A fire damper tool is provided for assisting a user opening the shutters of an HVAC fire damper after the shutters have closed. The device comprises a scissor tool that is hand-driven for separating the closed shutters without requiring the user to exert force on the doors while opening. The tool comprises a first and second set of scissor arms connected to a common pin. A threaded rod connects the proximal ends of the scissor arms along one side of the pin, while the distal ends of the scissor arms are positioned between the closed fire damper doors. A hand driven nut draws the proximal ends of the scissor arms together, causing the proximal ends thereof to spread, and in turn spread the fire damper doors. The tool is useful for confined areas where mechanical advantage is necessary for separating items, and is particularly suited for commercial HVAC applications.

An installation tool for installing a seal includes a shaft and a seal-engaging component coupled with the shaft. During an installation of the seal, the seal-engaging component is adapted to couple with the seal. The seal-engaging component includes a first surface and a second surface. The seal-engaging component also includes a first annular ring extending from the first surface and adapted to engage with the seal for coupling the seal with the seal-engaging component. The seal-engaging component further includes a second annular ring extending from the first surface. The installation tool also includes a sliding hammer adapted to slide along a length of the shaft. During the installation of the seal, the sliding hammer is adapted to apply a force to the seal-engaging component for installing the seal at a seal installation location.

An axle hub puller as provided includes a puller body. The puller body includes at least two counter sink holes and a threaded puller screw hole located in the center. The puller body is operable to removably attach to hub with a plurality of wheel lugs by having the plurality of wheel lugs pass through the plurality of counter sink holes. A puller screw is inserted into the threaded puller screw hole. The puller screw is turned against a hub axle center allowing for the removal of the hub and a brake rotor.