279D3, 289D3, 299D3, 299D3 XE Compact Track Loaders and 246D3, 262D3, 272D3, 272D3 XE Skid Steer Loaders Power Train Caterpillar

Removing the Track

1. Position the machine on firm, level ground.

2. Remove any work tool that is attached to the quick coupler.

3. Raise the loader arms and install the brace for the loader lift arm. Refer to Operation and Maintenance Manual, "Loader Lift Arm Brace Operation".
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   Illustration 1	g03653183

4. Use an appropriate floor jack to lift the machine off the ground. Use appropriate jack stands to block up the machine. Raise the machine until tracks are approximately 50 mm (2.0 inch) (A) off the ground.

5. Detention the track. Refer to Operation and Maintenance Manual, "Track (Steel) - Inspect/Adjust".
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   Illustration 2	g03653221
   (1) Final Drive Sprocket (2) Front idler wheel

   Note: The approximate weight of the track is 400 kg (882 lb).

6. Use a suitable method to flag the track shoe over the master link so that the track location can be seen from the operator station.
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   Illustration 3	g03653793
   (2) Front Idler Wheel (3) Flagged Track over Master Link (4) Lifting Device Location

7. Operate the machine drive control to position the flagged track shoe at the top of the front idler & shut off the machine.

8. Attach a suitable lifting device to the track just behind the flagged track shoe.
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   Illustration 4	g03653779
   Route strap through debris openings.

9. Use suitable blocking material in front of the front idler to catch the forward portion of the track
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   Illustration 5	g03653821

10. Remove the four master link bolts of the flagged track shoe over the master link and remove the track shoe.
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    Illustration 6	g03653829

11. Lift the strapped rear portion of the track and over the sprocket and lay this portion on the ground behind the machine.

12. Repeat steps 6 through 11 for the other side.

Installing the Track

Note: The approximate weight of the track is 400 kg (882 lb).

1. Unroll out the track assembly on a flat, level surface. Ensure that the two master links are free of any paint and primer. Orient the track assembly so the leading edge of the track shoes face forward when on the top of the undercarriage.
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   Illustration 7	g03653200

2. Use suitable lifting or moving equipment to lay out the track under the undercarriage. Ensure that placement of the track allows enough length behind the machine to wrap over the sprocket.

3. Use an appropriate lifting device. Strap the track by routing a lifting sling through the debris openings of the rear most track shoe

4. Lift the rear portion of the track over the sprocket, engaging enough teeth to retain the weight of the track.

5. Lift the front portion of the track over the carrier roller. Use suitable blocking material at the front idler to prevent the track from slipping off the undercarriage.

6. Connect the two master links insuring all the teeth align. Secure the two links together with four master link bolts. Torque the master link bolts to 280 ± 15 N·m (206.5 ± 11.1 lb ft).
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   Illustration 8	g03653842

7. Check and adjust the alignment of the carrier roller. Align the center of the carrier roller with the center of the link assembly (6).

8. Loosen the carrier roller alignment bolt (5) to shift the roller assembly as needed.

9. Tighten the carrier alignment bolt (5) to a torque of 186 ± 10 N·m (137.2 ± 7.4 lb ft).

10. Remove blocking and strapping.