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| Illustration 1 | g00425490 |
Track Roller Frame (1) Pivot shaft housing. (2) Access port for the track adjustment cylinder. (3) Recoil oscillation guide. (4) Seal. (5) Front roller frame. (6) Rear roller frame. | |
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| Illustration 2 | g00425492 |
Front Section of Track Roller Frame (8) Grease fittings. (9) Cylinder. (10) Piston. (11) Retainer. (12) Recoil spring. | |
The track roller frame can be separated into two sections. Front section (5) has a large tube assembly which telescopes into rear roller frame (6) . Recoil spring (12) and the track adjuster are inside the tube. A groove is machined in the outer diameter of the tube.
Recoil oscillation guide (3) is installed in rear roller frame (6) . After installation, the oscillation guide is in alignment with the groove in the tube. The oscillation guide will prevent any rotation of the tube inside the rear section of the roller frame, but the oscillation guide will allow the tube to slide in and out during recoil. Seal (4) keeps the oil in the recoil spring compartment. Seal (4) also keeps the dirt out of the recoil spring compartment.
Grease fittings (8) are used for moving the front roller frame to adjust the track. Grease is pumped into the filler valve. Piston (10) moves to the right. This movement causes the front roller frame to move out of the rear roller frame. The movement of the recoil rod and front idler tightens the track. The tension on the track is released by a relief valve.
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Personal injury or death can result from grease and oil coming out of the relief valve. Grease and oil are under high pressure coming out of the relief valve and can penetrate the body. 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. Make sure the vent holes are clean before the tension is released on the track. |
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