CONTROL GP-ENGINE ELECTRONIC 1496990 - Caterpillar

Typical Example2. Release the tension on the track. Loosen the relief valve for the track adjuster only one turn. If the track does not loosen after opening the relief valve, move the machine forward and backward until the tension is released. Adjust height of Tooling (A) so when it is installed under the frame of the machine, there is enough clearance provided for removal of any one of the track rollers.3. Lift the side of the machine, and install Tooling (A) under the frame as shown. 4. Loosen the four bolts that hold track guide (1) to the undercarriage frame assembly. Do not remove the bolts at this time.5. Fasten a hoist to Tool (B), and put it in position under track guide (1) as shown. Remove the bolts that hold the guide; then remove the guide. The fork end of Tool (B) is slightly wider than the diameter of the track roller. Prior to using Tool (B) for removal of the track roller, slide two pieces of rubber hose over the fork end of the tool. This will reduce the spacing of the fork, and provide the necessary fit around the track roller.6. Loosen the four bolts that hold track roller (2) to the undercarriage frame assembly. Do not remove the bolts at this time.7. Fasten a hoist to Tool (B), and put it in position under track roller (2) as shown. Remove the bolts that hold the track roller; then remove the track roller. The weight of the track roller is 41 kg (90 lb). The following steps are for installation of the track roller.8. Make sure the mounting surfaces on the track roller, the guide and the undercarriage frame assembly are clean and free of dirt and debris prior to installation of the track roller and guide.9. Put track roller (2) in position on the undercarriage frame assembly with Tool (B). Make sure the fill plug on the roller is facing out. Install the four bolts that hold the roller in position.10. Put track guide (1) in position on the undercarriage frame assembly with Tool (B). Install the four bolts that hold the guide.11. Prior to lowering the machine to the ground and tightening the track, make sure all of the track rollers rotate smoothly by hand.12. Lift the machine off of Tooling (A), and remove the stands from under the machine. Lower the machine to the floor.13. Tighten the tension of the track. Refer to the topic "Tracks" in the Operation & Maintenance Manual.Disassemble & Assemble Track Rollers
Start By:a. remove track rollers Fluid Spillage ContainmentCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.1.