Usage:
1. Remove the bolts and cover (1) from the roller frame. Remove the O-ring seal from the cover.
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The adjuster cylinder for the track is under high hydraulic pressure. Do not visually inspect the relief valve to see if grease is released when it is open. Look to see that the track has loosened. Use this warning any time the tracks are loosened or tightened. |
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2. Loosen the track as follows:
a. Turn relief valve (2) one turn counterclockwise to permit grease to be released from the track adjuster. If the track does not loosen, go to Step b.
b. Turn fill valve (3) one turn counterclockwise to permit grease to be released from the track adjuster. If the track still does not loosen, start the machine, and move it forward and backward. If grease is still not released, go to Step c.
c. Install a piece of round bar stock between the bushing and sprocket inside the links. Move the machine to the rear so the track will be pushed up by the round bar stock. This will put tension on the track, and move the track adjuster in.
3. Move the track until the master link is in alignment with the centerline of rear idler (5). Put wood blocks under the grouser bar just below the master link.
4. Remove four bolts (6) and master shoe (4).
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Keep away from the front of the machine when the track is pushed off of the final drive. A minimum distance of 25 ft. (7.6 m) is needed in front of the track to permit the track to move out onto the floor. |
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5. Fasten a chain to the end of track (7) and to a wheel loader or similar machine. Turn the final drive in a forward direction and let track (7) fall forward while the wheel loader is moved forward.
6. If the track is to be removed from the machine, use tool (A) to lift the side of the machine. Put tooling (B) in position under the machine. Lower the machine onto tooling (B).
7. Remove the track from under the track roller frame. The weight of the track is approximately 680 kg (1500 lb).
Connection Of Tracks
1. Put the track in position under the track roller frame.
2. Use tooling (A), and lift the machine off of tooling (B).
3. Remove tooling (B). Use tooling (A) and lower the machine onto the track.
4. Fasten a chain to track (1) and to a wheel loader or similar machine. Use the wheel loader, and pull track (1) over front idler (3) and carrier roller (2).
5. Pull track (1) until the track bushings engage with sprocket segments (4) on the final drive.
6. Start the machine, and turn the final drive in a reverse direction to pull the track together.
7. Remove the chain from the track.
8. Align the lower end (6) of the master link with the upper end (5) of the master link. Make sure the serrations of both ends of master link are engaged.
9. Put 2P2506 Thread Lubricant on the threads, body and washer face of bolts (7).
10. Put master shoe (8) in position on the master link, and install four bolts (7) to hold the master link together. Tighten the bolts to a torque of 170 ± 40 N·m (120 ± 30 lb ft). Tighten the bolts 180° ± 5° more.
11. Tighten relief valve (9) and fill valve (10).
12. Adjust the track as follows:
NOTE: The track adjustment procedure should be performed under the same conditions in which the machine is used. Packing must NOT be removed from the track if packing conditions exist on the job.
a. Move the machine forward a distance of twice its length. Allow the machine to come to a stop without the use of the brakes.
b. Put 5P0960 Multipurpose Grease into the track adjuster through fill valve (10). Move the front track roller frame forward until the track is tight.
c. Measure the distance between the front track roller frame and the rear track roller frame (dimension X).
d. Open relief valve (9) to release the tension on the track until the front track roller frame moves back into the rear track roller frame 6 mm (.24 in). If necessary, move the machine backward and forward to help move the front track roller frame back.
13. Put the O-ring seal and cover (11) in position on the rear track roller frame. Install the bolts to hold the cover in place.
Disassemble Tracks
1. Move the machine forward or backward until the track pins to be removed are between the carrier roller and the front idler.
2. Remove the carrier roller. See Remove Carrier Rollers.
3. Put blocks (1) in position under the front of the track.
4. Put blocks (2) in position to support the track.
5. Remove three track shoes (3) over the track pins to be removed.
6. Fasten a hoist to tooling (A). Put tooling (A) in position against track pin (4).
7. Push track pin (4) out of the track with tooling (A), and install one of tooling (B) to hold the track together until the other track pin is removed.
8. Put tooling (A) in position against track pin (5). Push track pin (5) out of the track, and install tool (B).
9. Remove tooling (A) from the track.
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Do not damage the face of the seals when the links are moved apart. |
10. Put tool (C) in position in link assembly (7) as shown. Use tool (C) to spread the link assembly apart far enough to disconnect link assembly (7) from link assembly (6).
11. Remove tool (B), and move link assembly (6) away from link assembly (7).
12. Put tool (C) in position in link assembly (8) as shown.
13. Use tool (C) to spread link assembly (8) apart far enough to remove link assembly (7). Remove tool (B) and link assembly (7).
14. Remove seals (9) and rings (10) from link assembly (7).
15. Put the link assembly in position in tooling (D) as shown.
16. Remove link (11) from bushing (12) with tooling (D).
17. Use tool (D), and remove link (13) from bushing (12).
18. Remove the plugs and stoppers from the track pins.
Assemble Tracks
1. Put SAE 90W oil on each end of bushing (2) for a minimum length of 5 mm (.2 in).
| NOTICE |
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Use a maximum force of 445 kN (100 000 lb) when the track is assembled. |
2. Use tooling (A) to install bushing (2) in link (1). Push the bushing in until it makes contact with the 5P2188 Adapter. The bushing must extend 1.45 ± 0.13 mm (.057 ± .005 in) beyond the surface of the link.
3. Put link (1), bushing (2) and link (3) in position in tooling (A) as shown.
4. Install tool (C) to align links (1) and (3).
5. Install bushing (2) in link (3) with tool (A). Install the bushing until it makes contact with the 5P2188 Adapter. The bushing must extend 1.45 ± 0.13 mm (.057 ± .005 in) beyond the surface of the link.
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The counterbore in the links must be clean and free of oil. Do not allow oil to come in contact with load ring (4). The load ring will swell and deteriorate if it comes in contact with oil. |
6. Install load ring (4), seal (5) and ring (6) in each side of the link assembly. Put clean SAE 90W oil on the sharp sealing edge of the seal only.
7. Make sure the seals and rings are in position in link assembly (7). Put clean SAE 90W oil on the sealing edge of the seals.
8. Use tool (B), and spread link assembly (7) far enough apart to install link assembly (8).
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Do not damage the face of the seals when link assembly (8) is installed. |
9. Put link assembly (8) in position in link assembly (7), and install tooling (C) to hold it in place.
10. Use tool (B), and spread link assembly (8) apart far enough to connect it to link assembly (9).
11. Put link assembly (8) in position on link assembly (9), and install tool (C) to hold it in place.
12. Install stoppers (10) in track pins (11). Install the stoppers NOTE: 8 ± 4 mm (.31 ± .15 in) below the surface of the track pin.
NOTE: The pin must be installed with the hole end on the same side of the track assembly for the entire length of the track assembly. The oil cross hole in the pin must be within 20° of the vertical centerline of the pin bore and closest to the rail of the link. The pins have a mark on the end for crosshole location. Also, the pin must be installed with a minimum amount of force to get a maximum amount of end play 0.13 mm (.005 in) between the bushing and the thrust ring.
13. Fasten a hoist to tooling (D). Use tooling (D) to install track pins (11) and push tooling (C) out of the link assemblies. Install the track pins until they extend a maximum of 3.11 mm (.122 in) beyond both sides of the link assembly.
14. Fill the track pins with 21 to 24 mL (.71 to .82 oz.) of SAE 90 oil.
15. Put oil on plug (12). Use tool (E), and install the plug until it is even with the end of the stopper.
16. Put three track shoes (13) in position. Put SAE 30 oil on the bolt threads, body and washer face, and install the bolts that hold the track shoes in place. Tighten the bolts to a torque of 170 ± 40 N·m (120 ± 30 lb ft). Tighten the bolts 120° ± 5° more.
End By:
a. install carrier rollers