OPTION AR-SERVICE 3534246 - Caterpillar

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.
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.
Note: Put identification marks on all hoses. Plug all hose assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
Rotate the machine in order to expose the blade cylinder.
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".
Illustration 1 g01522230
Remove bolts (1). Remove cover (2) .
Illustration 2 g01522239
Disconnect hose assemblies (3) .
Illustration 3 g01522248
Attach a suitable lifting device to blade cylinder (6). The weight of blade cylinder (6) is approximately 69 kg (152 lb).
Remove retaining bolt (4) and (8). Remove pin assemblies (5) and (7) .
Remove blade cylinder (6) .Disassembly and Assembly Procedure
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 4 g01522270
(1) Lubricate the locknut and the threads before assembly. Tighten to a torque of 5100 255 N m (3762 188 lb ft). (2) Lubricate seals with clean grease. (3) Install seals to a depth of 0.50 0.50 mm (0.020 0.020 inch). (4) Drill to a Depth (X) of 23.0 0.50 mm (0.91 0.020 inch). (4) Apply Three Bond 1121 sealant to the hole before assembly. (5) Prior to drilling, tighten the cylinder head to a torque of 1100 110 N m (811 81 lb ft). (6) Lubricate the seals with the lubricant that is being sealed. (7) Apply sealant to the wiper seal groove prior to assembly.Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     5P-0960     Grease Cartridge     1    Note: Check the condition of the seals and the bearings. If the seals or bearings are worn or damaged, use new parts for replacement.
Illustration 5 g01522248
Attach a suitable lifting device to blade cylinder (6). The weight of blade cylinder (6) is approximately 69 kg (152 lb).
Position blade cylinder (6) onto the chassis and the blade.
Prior to installing pin assemblies (5) and (7), check that the bore is free of paint and grease. Install pin assemblies (5) and (7) .
Install retaining bolts (4) and (8).