MODULE COIL 6I0704 - Caterpillar

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.
Hydraulic oil pressure can remain in the hydraulic system on this machine after the engine and pump have been stopped. Serious injury can result if this pressure is not released before any service is done on the hydraulic systems. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component.Lower all attachments to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the attachment in the raised position, the attachments and lift cylinders must be supported properly.Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made.
Lower the ripper to a solid, level surface.
Release the system pressure.
Connect the steering frame lock.
Illustration 1 g01397769
Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply 138 kPa (20 psi). This procedure will pull a vacuum on the hydraulic system.
Illustration 2 g01401045
Disconnect hose assemblies (1).
Illustration 3 g06053093
Attach a suitable lifting device to ripper lift cylinder (2). The weight of ripper lift cylinder (2) is approximately 93 kg (205 lb).
Remove bolts (3). Install Tooling (B) in holes (4). Remove trunnion bearing (5).
Repeat Step 7 for the opposite side.
Remove bolts (7) and plate (8).
Remove pin (6).
Illustration 4 g01401053
Remove ripper lift cylinder (2).
Illustration 5 g01401056
Remove bearings (9) from ripper lift cylinder (2).Installation Procedure
Install ripper lift cylinder (2) in the reverse order of removal.Note: Raise the temperature of bearings (9) for installation.Disassembly and Assembly Information
Table 2
Required Tools
Tool Part Number Part Description Qty
C - Loctite648 -
When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.
Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.
Illustration 6 g06056269 (1) Torque for piston ... 450 25 N m (332 18 lb ft) (2) Lubricate sealing lips with a thin covering of the lubricant that is being sealed. (3) Torque for head ... 600 130