STEP 9W8152 - Caterpillar

Table 4
Seal Installer Tool
Model Usage Installer Part Number
D6D, D6C, D5B, D5,
D4D, D3, 963K, 963, 961, 955L,
955K, 955, 953, 951C,
951B, 951, 943, 941B, 941,
931, 572, 572F, 572G, 561C,
235, 225, 227, 219, 215B, 215 1U-8843
D9H, D9G, 594H, 594 1U-8842
D8K, D8H, 583K, 583H 1U-8841
D7G, D7F, D7E,
D6G, D6E, 983B, 983, 977L,
977K, 977, 973D, 973, 245, 1U-8840
Dry the Duo-Cone seals using pressurized air at 30 psi for 1 minute.
Illustration 19 g02415486
Check the seal height.
Check the assembly seal height in four locations 90 degrees apart. The difference in height around the seal must not exceed 1 mm (0.04 inch).
Illustration 20 g02415488
Make sure that the seal faces are free of all debris. Apply a thin film of clean oil to the seal face of the Duo-Cone seal within the end collar. Use the same oil as used in the roller. If more convenient, apply a thin film of clean oil to the seal face Duo-Cone seal with in the roller assembly. Do not use a horse hair brush to distribute the oil.Note: Do not get oil on the rubber toric ring. Oil will lead to slipping between the toric ring and seal ramp.
Illustration 21 g02415490
Install the end collars.
Install the end collars.
Illustration 22 g02415491
Replace the retaining ring.
Compress the end collars using a press or similar tooling and replace the retaining ring.
Insert the properly sized stopper into the shaft using the 5P-7392 Stopper Installation Group. Oil the stopper with a light oil.
Illustration 23 g02415492
Use the Test and fill machine 170-5664 to evaluate and fill the roller.
Illustration 24 g02415496
Pressure test the roller using FT2724.
Use the Test and Fill Machine 170-5664 to evaluate and fill the roller. If the Test and Fill Machine 170-5664 is not available, perform the following test using the FT-2724. Introduce nitrogen into the lubricant cavity to a pressure of 138 kPa (20 psi). Turn the ball valve to a shut-off position. Next close the pressure gauge. The pressure is to be observed for 10 seconds. A pressure drop of 2.5 percent or less is acceptable.Note: If using FT-2724, do not allow air to enter in a surge and do not use pressure more than 138 kPa (20 psi) as excessive pressure will damage the seals.
Illustration 25 g02415498
Add oil to the roller.
Add the correct quantity of oil to the roller. Refer to Track Roller Oil Fill Volume, SEBF8574.
Check the end-play of the roller. The end-play must fall within the tolerance given in Table 5.
Table 5
End-play Tolerances
Model Usage End-play
End-play mm (in)
D8K, D8H, D7G, D7F,
D7E, D6G, D6E, D6D,
D6C, D5B, D5, D4D, D3,
983B, 983, 977L, 977K,
977, 973D, 973, 963K, 963,
955,955L, 955K,
953, 951C, 951B, 951, 943,
941B, 941, 931, 583K,
583H, 572, 572F, 572G, 561C, 245, 235,
227, 225, 219, 215B,
215 0.26 mm (0.010 inch)
0.92 mm (0.036 inch)
D9H, D9G, 594H, 594 0.35 mm (0.014 inch)
0.93 mm (0.037 inch) Note: If the end-play does not fall within the given tolerances, disassemble