CONFIGURATION 4574213 - Caterpillar

1. Remove cover (1) from the track roller frame. Put identification on shims for correct installation.2. Remove plates (3) and shims (2) from each side of the idler. 3. Remove four bolts (4) that hold the idler to the yoke assembly. 4. Fasten two nylon straps as shown to the idler. Fasten a hoist and slide idler (5) forward and remove idler (5) from the track roller frame. The weight is 81 kg (180 lb.). The following steps are for installation of the front idlers.5. Fasten two nylon straps and a hoist to idler (5). Put the idler in position on the track roller frame.6. Install four bolts (4) that hold the idler to the yoke assembly.7. Install original shims (2) and plates (3) on each side of the idler. 8. Use feeler gauge (6) to check the clearance between plate (3) and the track roller frame. Remove or add shims (2) as needed to get a clearance of 1.5 mm (.06 in.) between the plates and track roller frame.9. Install cover (1).End By:a. connection of tracksDisassemble Front Idlers
Start By:a. remove front idler 1. Remove plug and drain oil from idler. Install plug. Remove bolt and washer (1). 2. Install a 3/8"- 16 NC forcing screw (2) in the pin. Push the pin from the bearing with a hammer.3. Remove bearing (3) from the front idler. Keep Duo-Cone seal group together for correct assembly. 4. Remove outer half of Duo-Cone seal (4) from the bearing. 5. Remove O-ring seal (5) from the shaft.6. Remove washer (6). Remove inner half of Duo-Cone seal (7) from the idler. 7. Turn the idler as shown and remove bearing (8) and the shaft. 8. Remove bolt and washer (9). Do Step 2 to remove the pin.9. Remove shaft (11) from the bearing. Remove the O-ring seal from the shaft.10. Remove outer half of Duo-Cone seal (10) from the bearing. 11. Remove washer (12). Remove inner half of Duo-Cone seal (13). 12. Remove the bushings from the idler with tooling (A) and a press.Assemble Front Idlers
1. Check all parts for damage. If damaged, use new parts for replacement.2. Make sure all parts are clean and free of dirt and foreign material.3. Install the bushings in idler (14) with tooling (B) and a press. See the topic, Installation Of Conventional Duo-Cone Seals, before installing any of the Duo-Cone seals. The rubber seals and all surfaces that make contact with the seals must be clean and dry with no damage to the surface. After installation of the seals, put oil on the contact surfaces of the Duo-Cone seals.4. Install the inner half of the Duo-Cone seal with tool (C) in the idler. 5. Install washer (12) with groove toward the idler. 6. Install the outer half of the Duo-Cone seal with tool (C) in the bearing. 7. Install O-ring seal (15) on shaft (11). Install shaft as shown to prevent damage to O-ring seal. Make an alignment of pin hole in bearing and the notch