 | |
| Illustration 1 | g01251586 |
Check the track adjustment. Check the track for wear and for excessive dirt buildup.
 |
Grease is under high pressure. Grease coming out of the relief valve under pressure can penetrate the body causing injury or death. Do not watch the relief valve to see if grease is escaping. Watch the track or track adjustment cylinder to see if the track is being loosened. Loosen the relief valve only one turn. |
 |
| NOTICE |
|---|
If tracks are too tight or loose, wear of components is accelerated. If they appear too tight or too loose, adjust the track. Follow the procedures in the Maintenance Section for adjustment. |
- Move the machine forward. Allow the machine to coast to a stop without the use of the service brakes. Adjust the tracks while you are in the machine's typical operating conditions. If packing conditions prevail on the workplace, the tracks should be adjusted without removing the packed material.
- To measure the sag in the track, stretch a string over the grousers that are between the sprocket and the front idler. Take the measurement from the string to the top of the grouser at the maximum measurement.
 | |
| Illustration 2 | g01118207 |
The standard machine is equipped with a carrier roller. Calculate the average of dimension (B) and dimension (C). The correct average value is 65 ± 10 mm (2.6 ± 0.4 inch).
Loose Track Adjustment
 | |
| Illustration 3 | g01019107 |
| NOTICE |
|---|
Do not attempt to tighten track when dimension (D) is 152 mm (6.0 inch) or more. Contact your Caterpillar dealer for track service or instructions. |
- Remove the access cover.
 | |
| Illustration 4 | g01187435 |
- Add multipurpose grease (MPGM) through track adjustment valve (1). Add the MPGM until dimension ( B, C) is correct.
 | |
| Illustration 5 | g01019116 |
Typical adjuster | |
- Operate the machine back and forth in order to equalize the pressure. Allow the machine to coast to a complete stop. Do not use the brakes.
- Remeasure dimension (D) .
Tight Track Adjustment
- Loosen relief valve (2) by one turn of 360 degrees. Allow the grease to escape.
- Close the relief valve.
- Add MPGM through track adjustment valve (1). Add grease until dimension (B, C) is correct.
- Install the access cover.
Bolt Torque for Track Shoes
The torque requirement for track shoe bolts is 650 ± 70 N·m (480 ± 50 lb ft). Tighten the bolts for an additional 120 degrees. If you are using bolts with a master link, tighten the bolts to a torque of 650 ± 70 N·m (480 ± 50 lb ft). Then, tighten the bolts for an additional 120 degrees.