GENERAL / Precautions for Dissembling and Assembling Precautions for Using Floating Seal 1. In general, replace the floating seal with a new one after disassembling. If the floating seal is required to be reused, follow these procedures: Keep seal rings together as a matched set with seal ring (1) surfaces together. Apply oil onto sliding surface (e) of seal ring (1). Check sliding surface (e) of seal ring (1) for scuffing, scoring, corrosion, deformation, or uneven wear. Check the step part of seal ring (1). Check O-ring (2) for tears, breaks, deformation, or hardening. 2. If incorrectly assembled, oil leakage or damage will occur. Be sure to do the following to prevent trouble.
Clean the floating seal and seal mounting bores with cleaning solvent. Use a wire brush to remove mud, rust, or dirt from seal mounting bores. After cleaning, thoroughly dry parts with compressed air. Clean seal ring (1) and O-ring (2) mounting bores. Check the bore surface for scuffing or scoring by touching the surface with finger. After installing the floating seal, check that O-ring (2) is not twisted, and that it is installed correctly on seal ring (1). After installing the floating seal, check that O-ring (2) and seal ring sliding surface (e) is parallel with seal mating surface (f) by measuring the distances (e) and (f) at point (A) and (B), as illustrated.
If these distances differ, correct O-ring (2) seating. W178-02-11-001 a b c d W178-02-11-002 a-Correct ｃ -Twist of O-Ring b-Incorrect d-Bend of O-Ring A B A=B A B W178-02-11-003 a-Correct e-Sliding Surface b-Incorrect f-Seal Mating Surface W1-1-2 1 2 f a