PLATE-WEAR 4643090 - Caterpillar

Assembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
(A)     125-0079     Hydraulic Cylinder Repair Stand     1    
152-4249 Hydraulic Cylinder Repair Stand (1)     1    
(B)     1P-0520     Bearing and Seal Driver     1    
Secondary Tools (2)    
    3S-6224     Electric Hydraulic Pump     1    
8T-0820 Pressure Gauge     1    
3B-7722 Bushing     2    
1P-2377 Plug     2    
8F-0024 Hose Assembly     2    
4C-4465 Adapter     1    
1P-0851 Spline     1    
4C-4466 55 mm Socket     1    
( 1 ) CE Compliant
( 2 ) The secondary tools are used with the Wolff Hydraulic Cylinder Repair Stand. If a hydraulic repair stand is not available to disassemble the cylinder, consult the Caterpillar Service Technology Group.
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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00884586
Note: Check the condition of all the parts of the lift cylinder for wear or damage. If any of the parts are worn or damaged, use new parts for replacement.
Lower the temperature of bearing (2) for the cylinder assembly. Use Tooling (B) to install bearing (2) into the pin bore of the cylinder assembly. Install the bearing until the bearing is centered in the bore. Use Tooling (B) to install two retaining rings (1) in the pin bore of the cylinder assembly until the retaining rings contact the bearing.
Install seal (8) and ring (9) on head (15) .Note: Make sure that the grooves for the seals in head (15) are thoroughly clean prior to assembly.
Install seals (10) and (11) and ring (14) in head (15), as shown.
Apply 4C-4032 Bearing Mount Compound to the groove for the wiper seal prior to assembly. Use Tooling (B) to install seal (12) in head (15) .
Install ring (13) in head (15), as shown.
Apply clean hydraulic oil on the lip of the seals and on the rings in head (15) .
Put head (15) in position on the cylinder assembly.
Fasten Tooling (A) to the cylinder assembly. Temporarily install the cylinder assembly and head (15) onto the rod assembly. Disconnect head (15) from the cylinder assembly. Remove the rod assembly and the head as a unit from the cylinder assembly.
Install seal assembly (5) and ring (6) on piston (7). Lubricate the outside of piston (7) with 5P-0960 Molybdenum Grease .
Install piston (7) on the rod assembly. Lubricate the threads on the end of bolt (3) with 5P-0960 Molybdenum Grease .
Install washer (4) and bolt (3) on piston (7). Use the universal wrench that is