ROD TIE 1C3975 - Caterpillar

Introduction
This instruction gives the procedure for updating large duo-cone seal installers not equipped with a latch by installing the 1U5495 Latch Group.This instruction also gives the procedure for installing seals using the updated seal installer equipped with the 1U5495 Latch Group.The 1U5495 Latch Group bridges the sawcut gap on the seal installer and will:* Hold the installer lips in alignment at the installer gap.* Prevent the gap from opening which changes lip-to-toric position during seal installation.* Hold the installer in the "open" position during removal to prevent disturbing the installed seal assembly.Reference: Service Manual and Tool Guide.Necessary Parts
Latch Installation Procedure
1. Form all sheet metal strips and plates of the 1U5495 Latch Group to the correct curvature by bending around a radius slightly smaller than that of the seal installer. This allows for "spring-back", so when the piece is firmly applied to the installer, it conforms to the curvature of the installer.2. Refer to the illustration and chart that follows for dimensions (X) and (Y).
(Drawing not to scale.) (B) Working edge of installer.3. Mark two lines across installer (1) at dimensions (X) and (Y) from the sawcut.4. Clamp seal installer (1) in a parallel-jawed vise with the sawcut gap opened 5 mm (.2") as shown in the illustration.5. Position strip (2) on installer (1) and against the vise jaw opposite the installer working edge (B).6. Locate strip (2) so that the end hole is bisected by the line at dimension (Y).7. Use strip (2) as a template and center punch installer surface (1) a distance slightly less than that between the hole centers.8. Drill the locations center punched in step 7 with a