PLUNGER 7T8810 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     138-7573     Link Bracket     2    Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
Keep all parts clean from contaminants.Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components.To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly.Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Drain the hydraulic tank into a suitable container for storage or disposal.
Illustration 1 g00930546
Disconnect 13 hose assemblies (4) .
Mark swivel (3) for installation purposes.
Remove bolts (2) that hold swivel (3) to the machine.
Disconnect harness assembly (1) .
Illustration 2 g01172221
Disconnect hose assemblies (5) and (6) .
Illustration 3 g01172222
Disconnect 13 hose assemblies (8) from swivel (3) .
Disconnect harness assembly (7) .
Illustration 4 g01172223
Attach Tooling (A) and a suitable lifting device to swivel (3) .
Remove swivel (3). The weight of swivel (3) is approximately 84 kg (185 lb).