Sealing arrangement of tool and method of sealing

A sealing arrangement comprising:

• a tool associated with a breaking hammer;
• a sealing housing defined by an inner surface located around the tool;
• an annular gap formed between an outer surface of the tool and an inner surface of the sealing housing;
• and
• a sleeve-like seal arranged to seal the annular gap, the seal having an inner periphery, an outer periphery and an axial length, the inner periphery of the seal including first and second tool openings each provided with sealing surfaces arranged to face towards the tool to be sealed, and the outer periphery of the seal being provided with fastening surfaces for fastening the seal to a body of the breaking hammer, wherein the seal includes a first and a second seal element, the first seal element having a first end arranged to face towards the breaking hammer and a second end arranged to face away from the breaking hammer, the first seal element being made of a resilient material and including the first tool opening arranged to be in a resilient contacting relationship with the tool, wherein the fastening surfaces are located on the outer periphery of the first seal element, the first and second seal elements being arranged successively in an axial direction, the second seal element being fastened only to the first seal element, such that the second seal element is without fastening surfaces for fastening it to the body of the breaking hammer, and wherein the second seal element is a rigid element and includes the second tool opening, which is dimensioned to form a sealing clearance between the tool and the second seal element, the second seal element having a cup-like configuration and being configured to cover the first seal element at the portion of the second end, wherein the rigid second seal element is configured to serve as a mechanical shielding element for the resilient first seal element, the fastening between the first seal element and the second seal element being connectable and disconnectable, such that the fastening is based on shape-locking, the resilient first seal element of the seal allowing the rigid second seal element to move transversally together with the tool relative to the sealing housing, wherein the body of the breaking hammer includes a protective casing and the first seal element is fastened to a bottom plate of the protective casing and the entire rigid second seal element is configured to be located outside the body and the first seal element is protected by the rigid second seal element.