SPACER 3P6600 - Caterpillar

Illustration 10.4. Remove the axle assembly from the shop press and place it on a work table in the position shown.The section of the axle that is exposed in the center of support boss (11) is to be removed
Illustration 11.
(B) First Cut. (C) Second Cut.5. Cut the section out with a torch, fitted with a No. 3 cutting tip.Make the cuts in the order and at the locations shown.
Care should be exercised to not damage the support boss when cutting the axle. Use less oxygen than normally used when making cuts. Rotate the axle rather than cutting completely through from one side.
Illustration 12.6. When the first cut is completed, remove the longer section of the axle from the support.
Illustration 13.7. To provide better access for making the second cut, chamfer the cut end as shown.
Illustration 14.8. Move the axle so that chamfered end fits into the open bore.
Illustration 15.9. When the second cut is completed, lift out the cut-out section through the center opening in the support.
Illustration 16.10. Remove the remaining section of axle from the support. Because of slag buildup on the end of the axle, it may be necessary to trim (chamfer) the end of the axle before removing it from the support.Installation Of 3W-5775 Axle And 3W-5776 Seal Retainer, and 8R-8780 Axle And 8R-9006 Seal Retainer
The axle must be chilled before installing it into the support. Place the axle in an insulated container and pack with dry ice. Chill the axle for one hour (60 minutes) prior to installing.
Illustration 17.1. Smooth the bores in the support using a grinder fitted with an 8T-7767 Grinding Wheel (or equivalent).
Illustration 18.2. Remove any rough edges or burrs from the inside of the bores.
Illustration 19.3. Smooth both faces (13) of the support boss. A Go/No-Go gauge may be used to ensure the bores in the support have been adequately prepared (cleaned-up) to accept a new axle. Make the gauge from a discarded axle by machining the major O.D. Of the axle to 48.235 0.025 mm (1.899 0.001")
Illustration 20.4. Adjust the depth of gauging sleeve (14). Use depth micrometer (15) to set the dimension to: * 159.74 mm (6.289") 3W-5775 Axle.* 175.06 mm (6.892") 8R-8780 Axle. If spacer assembly (2) is to be used at the gauging sleeve position, the depth setting must be made with the spacer in place as shown.
Illustration 21.The setting is adjusted by loosening locknut (16) and turning bolt (17).* After the setting is made, hold the bolt and tighten the locknut. Check the setting and readjust if necessary.Use Of Spacer Assemblies
Illustration 22.
(D) Spacers. (E) NO SPACERS REQUIRED. Both axles removed. (F) TWO SPACERS REQUIRED. One axle removed. (G) ONE SPACER REQUIRED. One axle and seal retainer installed. In position to install second retainer.The illustration above shows when spacer assemblies are required for the variations that may be encountered when replacing axles and seal retainers.When using the 4C-8701 Axle Installation Fixture Group:* Use 4C-8696 and 4C-8697 Spacer Assemblies with 3W-5775 Axle and 3W-5776 Seal