Usage:
Start By:
a. remove swing motor
Fluid Spillage Containment
Care must be taken to ensure that the fluids are contained during performance of the inspection, the maintenance, the testing, the adjusting and the repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to the "Tools And Shop Products Guide, NENG2500" the tools and the supplies suitable to collect and contain any of the fluids in Caterpillar machines. Dispose of the fluids according to local regulations and mandates.
1. Thoroughly clean around the mounting area of the swing drive prior to the removal steps.
2. Drain the oil from the swing drive in a suitable container for storage or disposal. The capacity of the swing drive is 8 liters (2.1 U.S. gal).
3. Use Tooling (A) to remove 12 bolts (1) that hold the swing drive to the main frame.
4. Fasten Tooling (B) and a hoist to swing drive (2) as shown.
5. Remove the two corks from the threaded holes in the swing drive housing. Install a 24 mm x 130 mm Forcing Screw (3) in each threaded hole in the swing drive housing. Tighten the forcing screws evenly to separate the swing drive from the main frame.
6. Remove swing drive (2) from the machine. The weight of the swing drive is 226 kg (495 lb).
NOTE: The following steps are for the installation of the swing drive.
7. Thoroughly clean the mating surfaces of the main frame and the swing drive housing.
8. Put Loctite C5A for North America and Loctite 8008 for EAME on the locating pin in the main frame.
9. Put Loctite 5127 on the mating surface of the main frame and the swing drive housing.
NOTE: During the installation, the locating pin for the swing drive may come out of the swing drive housing.
10. Fasten Tooling (B) and a hoist swing drive (2). Put the swing drive in its original position in the main frame. If the locating pin comes out of the swing drive housing, it can be reinstalled with a hammer after the swing drive is in place.
11. Put Loctite 243 on the threads of 12 bolts (1). Install the 12 bolts and washers that hold the swing drive in place. Tighten the bolts evenly with Tooling (A) to a torque of 520 ± 70 N·m (384 ± 52 lb ft.).
12. Reinstall the two corks in the threaded holes in the swing drive housing.
NOTE: Refer to the topic "Lubricant Viscosities and Refill Capacities" in the "Operation & Maintenance Manual" for the proper filling procedure and the proper levels for the hydraulic system and the swing drive.
13. After the installation of the swing motor, fill the hydraulic oil tank and the swing drive with oil to the correct level.
End By:
a. install swing motor
Disassemble Swing Drive
Start By:
a. remove swing drive
Fluid Spillage Containment
Care must be taken to ensure that the fluids are contained during performance of the inspection, the maintenance, the testing, the adjusting and the repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to the "Tools And Shop Products Guide, NENG2500" the tools and the supplies suitable to collect and contain any of the fluids in Caterpillar machines. Dispose of the fluids according to local regulations and mandates.
1. Position the swing drive on wood blocks as shown. The weight of the swing drive is 226 kg (495 lb).
2. Drain the oil from the swing drive in a suitable container for storage or disposal. The capacity of the swing drive is 8 liters (2.1 U.S. gal).
3. Put an alignment mark on the cover and housing of the swing drive for assembly purposes.
4. Remove 16 bolts (1) and the washers that hold cover (2) to the ring gear and housing of the swing drive.
5. Fasten Tooling (A) to cover (2).
6. Fasten a hoist to Tooling (A) as shown. Carefully remove cover (2) from the ring gear of the swing drive.
7. Remove carrier assembly (3). The weight of the carrier assembly is 14 kg (30 lb).
8. Disassemble carrier assembly (3) as follows:
a. Remove sun gear (4) from the carrier assembly (3).
b. Drive spring pin (6) into planetary shaft (5) with a hammer and punch.
c. Remove planetary shaft (5), two thrust washers (9) and planetary gear (7) from the carrier.
d. Remove bearing (8) from planetary gear (7).
e. Remove spring pin (6) from planetary shaft (5) with a hammer and punch.
f. Remove the other three planetary gears from the carrier as in Steps 8a through 8e.
g. Remove retaining ring (10) with a screwdriver.
h. Remove gear (11) from carrier (3).
i. Remove retaining ring (12) from gear (11).
9. Remove retaining ring (15) that holds carrier assembly (13) in position.
10. Remove spacer (14) from carrier assembly (13).
11. Slide a piece of steel bar stock in between the planetary gears in carrier assembly (13) as shown. Make sure the bar stick is centered in the carrier assembly. Fasten Tool (B) and a hoist to the steel bar stock as shown. Slowly lift carrier assembly (13) from the swing drive housing. The weight of carrier assembly (13) is 22 kg (48 lb).
12. Disassemble carrier assembly (13) as follows:
a. Drive spring pin (16) into planetary shaft (17) with a hammer and punch.
b. Remove planetary shaft (17), two thrust washers (20) and planetary gear (18) from the carrier.
c. Remove two bearings (19) from planetary gear (18).
d. Remove spring pin (16) from planetary shaft (17) with a hammer and punch.
e. Remove the other three planetary gears from the carrier as in Steps 12a through 12d.
13. Using two persons, remove ring gear (21) from the swing drive housing. The weight of the ring gear is 39 kg (85 lb).
14. Use Tool (C) to remove retaining ring (22).
15. Loosen, but Do Not remove eight bolts (23) that hold cage (24) to the swing drive housing.
16. Put swing drive housing (25) in a press as shown. The combined weight of the swing drive housing, the pinion shaft and the bearing cage is 111 kg (245 lb).
17. Place a wood block directly under the pinion shaft so it can not fall when cage (24) is pressed out of the swing drive housing.
18. Put an alignment mark on cage (24) and the swing drive housing for assembly purposes.
19. Remove eight bolts (23) and the washers that hold cage (24) to the swing drive housing. Carefully press cage (24) and the pinion shaft, as a unit, out of swing drive housing (25).
20. Fasten Tooling (A) and a hoist to swing drive housing (25). Remove the swing drive housing from the press. The weight of the swing drive housing is 86 kg (190 lb).
21. Put pinion shaft (28) with cage (24), bearing (29) and spacer (27) in a press as shown. To present breakage of the cage, support it as shown. The combined weight of the pinion shaft, the cage, the bearing and the spacer is 50 kg (110 lb).
22. Remove inner bearing race (26) from pinion shaft (28).
23. Remove spacer (27) from pinion shaft (28).
24. Remove bearing (29) from pinion shaft (28).
25. Using the press, remove pinion shaft (28) from cage (24).
26. Remove lip seal (30) from cage (24).
27. Remove bearing (31) from swing drive housing (25).
Assemble Swing Drive
1. Make sure all parts of the swing drive are thoroughly clean and free of dirt and debris prior to assembly.
2. Apply 5P-3931 Anti-Seize Compound on the outside diameter of bearing (31) and the inside diameter of swing drive housing (25) where bearing (31) fits. Install bearing (31) in the swing drive housing. It may be necessary to use a hammer and a punch to seat the bearing properly.
3. Install two lip seals (30) in cage (24) as shown in the illustration. Apply 5P-0960 Multipurpose Grease on the lips of the seals.
| NOTICE |
|---|
Do Not damage lip seals (30) when cage (24) is installed over pinion shaft (28). |
4. Lower the temperature of pinion shaft (28). Carefully install cage (24) over the pinion shaft. Use a press to install bearing (29) on the pinion shaft. Install spacer (27) on pinion shaft (28).
5. Apply 5P-3931 Anti-Seize Compound on the outside diameter of bearing (29) and the inside diameter of swing drive housing (25) where bearing (29) fits.
6. Put swing drive housing (25) in a press as shown. Install pinion shaft (28), cage (24), bearing (29) and spacer (27), as a unit, in the swing drive housing. Make sure the alignment marks made on the cage and the swing drive housing are in alignment.
7. Apply 9S-3263 Thread Lock on the threads of eight bolts (23) that hold cage (24) to swing drive housing (25). Install eight bolts (23) and the washers. Tighten the bolts evenly to the standard torque value.
8. Turn the swing drive housing with the pinion shaft over. Position the unit in a press. Support the unit on the end of the pinion shaft.
9. Lower the temperature of inner bearing race (26) which is not shown. Install the inner bearing race over the pinion shaft and into bearing (31). Use a suitable size sleeve and a press to seat the inner bearing race.
10. Use Tool (C) to install retaining ring (22).
11. Use two persons to install ring gear (21) on the swing drive housing in its original position.
12. Assemble carrier assembly (13) as follows:
a. Apply clean SAE 30 oil on bearings (19). Install two bearings (19) in planetary gear (18).
b. Install a thrust washer (20) on each side of the planetary gear. Install the planetary gear and the thrust washers in the carrier. Install planetary shaft (17) in the carrier and through planetary gear (18). Make sure the spring pin hole in the planetary shaft is in alignment with the spring pin hole in the carrier.
c. Install spring pin (16) in the carrier and into the planetary shaft. Install the spring pin until it is even with the outside surface of the carrier and with the split in the spring pin oriented horizontal to the carrier either to the left or right.
d. To prevent the spring pin from falling out, make a stake mark on each side of the spring pin hole in the carrier. Each stake mark should be approximately 1.5 mm (.06 in) from the outside diameter of the spring pin hole.
e. Install the other three planetary gears (18) in the carrier as in Steps 12a through 12d.
13. Install carrier assembly (13) in ring gear (21). Slide a piece of steel bar stock in between the planetary gears in carrier assembly (13) as shown. Make sure the bar stock is centered in the carrier assembly. Fasten Tool (B) and a hoist to the steel bar stock as shown. Carefully lower the carrier assembly into position in the ring gear. It may be necessary to move the carrier assembly back and forth to allow all gears to line up and mesh properly.
14. Install retaining ring (15) that holds carrier assembly (13) in position.
15. Install spacer (15) on the end of the pinion shaft.
16. Assemble carrier assembly (3) as follows:
a. Install retaining ring (12) in gear (11).
b. Put gear (11) in the carrier.
c. Install retaining ring (10) with a screwdriver.
e. Apply clean SAE 30 oil on bearing (8). Install bearing (8) in planetary gear (7).
f. Install a thrust washer (9) on each side of the planetary gear.
g. Install the planetary gear and the thrust washers in the carrier.
h. Install planetary shaft (5) in the carrier and through planetary gear (7). Make sure the spring pin hole in planetary shaft (5) is in alignment with the spring pin hole in the carrier.
i. Install spring pin (6) in the carrier and into the planetary shaft. Install the spring pin until it is even with the outside surface of the carrier, and with the split in the spring pin oriented horizontal to the carrier either to the left or right.
j. To prevent the spring pin from falling out, make a stake mark on each side of the spring pin hole in the carrier. Each stake mark should be approximately 1.5 mm (.06 in) from the outside diameter of the spring pin hole.
k. Install the other three planetary gears in the carrier as in Steps 16a through 16i.
l. Install sun gear (4) in carrier assembly (3).
17. Using two persons, install carrier assembly (3) in the ring gear of the swing drive.
18. Apply 1U-8846 Gasket Maker on the flange surfaces of ring gear (21) and cover (2).
19. Fasten Tooling (A) and a hoist to cover (2) as shown. Put the cover in its original position on ring gear (21).
20. Apply 9S-3263 Thread Lock on the threads of 16 bolts (1). Install bolts (1) and the washers that hold cover (2). Tighten bolts (1) to a torque of 255 ± 25 N*m (189 ± 19 lb ft).
End By:
a. install swing drive