VALVE AS-BYPASS 1208758 - Caterpillar

Illustration 3 g00931717
Remove seal (8) from cap assembly (4). Remove bearing (9) from cap assembly (4) .
Repeat Step 6 for the remaining cap assembly.Disassembly and Assembly Information
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     127-4904     Repair Stand     1    
B     195-4609     Seal Pick     1    
C     7M-7456     Bearing Mount Compound     1    
D     1P-0808     Multipurpose Grease     1    
E     9U-7868     Spanner Wrench     1    
127-8064 Adjustable Plate     1    
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 g00931771
(1) Use a 46 mm socket in order to remove the bolt. Tighten the bolt to a torque of 1800 200 N m (1328 148 lb ft). (2) Lubricate sealing lips with a thin covering of the lubricant that is being sealed. (3) Apply Tooling (C) to the seal groove prior to assembling the wiper seal. (4) Torque for head ... 600 130 N m (440 95 lb ft)Note: Lubricate the threads with Tooling (D) .Installation Procedure
Table 3
Required Tools    
Tool     Part Number     Part Description     Qty    
F     183-3424     Grease Cartridge     1    
G     1P-0510     Driver Gp     1    Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
Illustration 5 g00931717
Use Tooling (G) (not shown) and a suitable press in order to install bearing (9) in cap assembly (4). Use Tooling (G) (not shown) in order to install seal (8) in cap assembly (4).
Repeat Step 1 for the remaining cap assembly.
Illustration 6 g00994122
Illustration 7 g00931868
Install caps (4) on blade lift cylinder (5) .
Attach a suitable lifting device to blade lift cylinder (5). The weight of blade lift cylinder (5) is approximately 102 kg (225 lb).
Position blade lift cylinder (5) on the machine. Install bolts (3). Torque bolts (3) to 130 7 N m (96 5 lb ft).
Apply Tooling (F) between inserts (4A) and ballstuds (5A). Install cap (7) and install bolts (6). Note: As required, use shims (6A) in order to allow the socket to move freely around ballstud (5A). Assemble the same quantity of shims (6A) on both sides of ballstud (5A) .
Illustration 8 g00994118
Install clamp (2). Connect hose assemblies (1).
Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the correct procedure.