ENGINE AR-COMPLETE 1246726 - Caterpillar

Illustration 1. Alignment of wear sleeve with shoulder on shaft for a smooth surface.FABRICATED INSTALLATION SLEEVE: An installation sleeve can be fabricated for easier assembly of the oil seal on the wear ring. The sleeve has a longer taper for gradual expansion of the seal lip as it slides into position.
Illustration 2 shows dimensions and specifications to fabricate the installation sleeve.
LEAKAGE TEST:After the main housing and bearing carrier are assembled on the shaft, and before the clutch plates and other parts are installed, a seal leakage test can be made to be sure the seals have not been damaged. To make the test: 1. Install a rubber or cork plug in the oil filler opening.2. Remove the oil level gauge and install a hose on the gauge tube. Fasten the hose with a clamp.3. Connect the other end of the hose to a source of pressure air, with a pressure regulator (control).4. Adjust the air pressure to 14 kPa (2 psi) maximum.5. Put a mixture of soap and water around the seals to check for leaks.
Complete service manuals for these power takeoffs are available from Twin Disc Incorporated, Racine, Wisconsin.
Illustration 2. Specifications to fabricate installation sleeve for oil seal.