Case 550 Crawler Dozer Service Manual

Table of Contents

1. General
2. Engines
3. Fuel System
4. Electrical System
5. Track System
6. Power Train
7. Btakes
8. Hydraulic System
9. Mounted Equipment

Manual Extract Idler Installation

1. Check the wear plates on both sides of the track frame. If the wear plates are worn, install new wear plates
2. Connect a chain hoist to the mounting brackets.
Use the cap screws for the guide plates to hold the chain hoist to the idler mounting brackets.
3. Use the chain hoist to help install the idler.
Slide the idler onto the track frame. Make sure the hole for putting oil in the idler is away from the machine.
4. Disconnect the chain hoist from the mounting brackets.
5. Install the cap screws for the wear plates at the front of the track frame.
6. Install the same number of shim(s) that were removed between the track adjuster yoke and the mounting brackets. Install the lock washers and cap screws.
7. See Parallel Alignment under Idler Adjustments in this section.
8. Check the clearance between the wear plates and the mounting brackets. The clearance is to be as little as possible. The clearance is adjusted by adding or removing shim(s). See Vertical Alignment under Idler Adjustments in this section.
9. Put the guide plates in position and install the shims and cap screws. See Center Alignment under Idler Adjustments in this section.
10. See Section 5506 for the installation of the track