CIRCLE AND BEAM ASSEMBLY 8D9993 - Caterpillar

Remove pin (6), and shims (5) .
Repeat Step 3 through Step 8 for the other ejector cylinder pin assembly.
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Install Tooling (C), Tooling (D) and, a suitable lifting device to main ejector plate assembly (7). The weight of main ejector plate assembly (7) and the lower ejector plate assembly is approximately 1275 kg (2810 lb).
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Remove bolt (8), and the washer from pin (9) .
Use Tooling (E) to remove pin (9) .
Remove shims (10) (not shown).
Repeat Step 11 through Step 13 for the other side of the ejector bucket.
Remove main ejector plate assembly (7) and the lower ejector plate assembly.
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Attach a suitable lifting device to lower ejector plate assembly (11). The weight of lower ejector plate assembly (11) is approximately 175 kg (385 lb).
Remove two bolts (12), and the washers from the hinge pin.
Use two people and remove the hinge pin to separate lower ejector plate assembly (11) from main ejector plate assembly (7). The weight of the hinge pin is approximately 25 kg (55 lb).
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Remove lip seal (13) from the main ejector plate assembly.
Remove bearing (14) from the main ejector plate assembly.
Repeat Step 19 and Step 20 for the other side bearing in the main ejector plate assembly.
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Disconnect hose assemblies (15), (16) and (18) .
Remove clip (17) .
Attach a suitable lifting device to ejector cylinder (1). The weight of the ejector cylinder is approximately 52 kg (115 lb).
Remove Tooling (A) .
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Remove bolt (19), and the washer from collet (20) .
Remove the three rubber bungs from collet (20) .
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Install Tooling (B) to collet (20). Tighten Tooling (B) evenly to remove collet (20) .
Repeat Step 27 and Step 28 to remove the other side collet.
Remove the ejector cylinder head end pin, and the shims.
Remove the ejector cylinder from the ejector bucket.
Repeat Step 22 through Step 31 to remove the other side ejector cylinder.Disassembly and Assembly Information
Table 2
Required Tools    
Tool    Part Number    Part Description    Qty    
F     125-0079     Hydraulic Cylinder Repair Stand Gp     1    
G     195-4609     Seal Pick     1    
H     -     Loctite 609     -    
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
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(1) (2) (5) Lubricate the sealing lips with the lubricant that is being sealed. (3) (7) Apply Tooling (H) to the seal grooves prior to installing the seals. (4) Lubricate the thread and tighten the nut to a torque of 1600 160 N m (1180 118 lb ft). (6) Lubricate the threads and tighten the four bolts to a torque of 240 40 N m (170 29 lb ft).