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.
Move the machine forward. Allow the machine to 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 job, the tracks should be adjusted with packing material.
Do not attempt to tighten track when dimension (1) is 105 mm (4.13 inch) or more.
Contact your AVSpare dealer for track service or instructions.
The sag in the track is measured between the sprocket and the front idler. The correct adjustment of dimension (2) is 100 ± 10 mm (3.9 ± 0.40 inch).
If the machine is equipped with a carrier roller, the correct adjustment of dimension (3) and of dimension (4) is 55 ± 10 mm (2.2 ± 0.40 inch).
Loose Track Adjustment
- Remove the valve cover plate.
- Add multipurpose grease (MPGM) through track adjustment valve (3). Add the MPGM until dimension (2) is correct.
- 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 (2) .
Tight Track Adjustment
- Loosen relief valve (4) by one turn of 360 degrees. Allow the grease to escape.
- Close the relief valve.
- Add MPGM through track adjustment valve (3). Add grease until dimension (2) is correct.
- Install the valve cover plate.
Bolt Torque for Track Shoes
The torque requirement for track shoe bolts is 400 ± 70 N·m (300 ± 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 400 ± 70 N·m (300 ± 50 lb ft). Tighten the bolts for an additional 180 degrees.