D6G Track-Type Tractor Power Train Caterpillar

Removal Procedure

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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.

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Illustration 1	g00364552

1. Use the following steps to loosen the track.

   1. Turn relief valve (1) to one turn counterclockwise. This will permit the grease to be released from the vent hole that is below relief valve (1). If the track is not loosened, go to Step 1.b.

   2. Turn valve (2) to one turn counterclockwise. This will permit grease to be released from the vent hole that is below valve (2) .

   3. If the track does not loosen, start the machine and move the machine forward and backward. If the grease is not released go to Step 1.d.

   4. Install a slug that is 76.2 mm (3.00 inch) in diameter. The slug should have a length of 63.5 mm (2.50 inch) that is between the track and sprocket segment.

   5. Move the machine to the rear so that the track will be pushed up by the slug.

      Note: The front idler and the track adjuster will move toward the rear of the track against the force of the recoil spring. This will push the grease out of the vent holes.

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Illustration 2	g00364554

2. Use the following steps to remove the rear track carrier roller.

   1. Remove guard assemblies (4) and (3) .
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   Illustration 3	g00364555

   2. Put wood blocks across the track roller frame.

   3. Install tool (A) .

      Note: The end of the hydraulic jack should be in contact with the flat part of the grouser track shoe.

   4. Lift the track with tool (A) until the track comes off of the carrier roller.

   5. Loosen bolt (5). Do not remove the bolt.

   6. Remove the three bolts that hold the bracket and the carrier roller to the track roller frame.
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   Illustration 4	g00364556

   7. Turn the carrier roller to 180 degrees toward the outside of the machine. Fasten a hoist to the carrier roller.

   8. Remove bolt (5) and track carrier roller (6). The weight of the carrier roller is 36 kg (80 lb).

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Illustration 5	g00364558

3. If necessary, use the following steps to remove the track carrier roller that is for the front.

   1. Put tool (A) in position on the equalizer bar. Lift the track from the carrier roller.

   2. Remove the track carrier roller by using Steps 2.a through 2.h.