120M and 12M Motor Grader Machine Systems Articulation Cylinder - Remove and Install - Left Side Caterpillar


Articulation Cylinder - Remove and Install - Left Side
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1.1. Removal Procedure
2.1. Disassembly and Assembly Information
3.1. Installation Procedure

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     FT-1114     Vacuum Cap     1    
B     1P-1831     Adapter     1    
4C-9633 Puller Stud     1    
1A-1935 Full Nut     1    
6V-3160 Double Acting Cylinder     1    
9S-5565 Pin Puller Sleeve As     1    
3S-6224 Electric Hydraulic Pump Gp     1    
C     195-4609     Seal Pick     1    

Start By:

  1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".

------ WARNING! ------

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.

----------------------

------ WARNING! ------

Personal injury can result from the sudden release of high pressure oil.

Be sure the engine has been shut off for a minimum of five minutes to ensure that the accumulator pressure is zero.

The accumulator is filled with dry nitrogen. Do not loosen or remove the valve or the cap from the top of the accumulator.

----------------------


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



NOTICE

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, "AVSpare Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on AVSpare products.

Dispose of all fluids according to local regulations and mandates.


Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

Note: Inspect the O-ring seals. Replace the O-ring seals that are worn or damaged.

  1. Connect the steering frame lock. Refer to Operation and Maintenance Manual, "Steering Frame Lock".

  1. Drain the cooling system coolant into a suitable container for storage or for disposal. Refer to Disassembly and Assembly, "Cooling System Coolant (ELC) - Change".



    Illustration 1g01368952

  1. 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 2g01401885

  1. Open the left side door assembly (1) .



    Illustration 3g01415940

  1. Loosen clamp assembly (2) and disconnect hose (3) .



    Illustration 4g01415927

  1. Remove clamp assembly (4) and position hose (3) out of the way.



    Illustration 5g01416168

  1. Remove bolt (4) and remove the bushing (not shown).

  1. Remove pin (5) and remove the washer (not shown).



    Illustration 6g01416266

  1. Disconnect hose assemblies (10) .

  1. Remove bolt (9) and remove the bushing (not shown).

  1. Remove cotter pin (6) .

  1. Remove pin (7) and remove the washer (not shown).

  1. The weight of articulation cylinder (8) is 34 kg (75 lb). Use two people in order to remove articulation cylinder (8) .



    Illustration 7g01416275

  1. Use Tooling (C) in order to remove seal assemblies (11) .



    Illustration 8g01416277

  1. Use Tooling (B) in order to remove bearing (12) . Repeat the process for the other side.

Disassembly and Assembly Information

Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
D     127-4904     Hydraulic Cylinder Repair Stand     1    
E     1P-0510     Driver Gp     1    
F     195-4609     Seal Pick     1    
G     1P-0808     Multipurpose Grease     1    
H     7M-7456     Bearing Mount Compound     1    

------ WARNING! ------

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 9g01401445

(1) Apply Tooling (G) to the threads of bolt (1) .

(2) Apply Tooling (H) to wiper seal groove (2) prior to assembly.

(3) Tighten head (3) to a torque of 600 ± 130 N·m (443 ± 96 lb ft).

(4) Lubricate sealing lips with a thin covering of the lubricant that is being sealed.

Installation Procedure

Table 3
Required Tools    
Tool     Part Number     Part Description     Qty    
A     FT-1114     Vacuum Cap     1    
B     1P-1831     Adapter     1    
4C-9633 Puller Stud     1    
1A-1935 Full Nut     1    
6V-3160 Double Acting Cylinder     1    
9S-5565 Pin Puller Sleeve As     1    
3S-6224 Electric Hydraulic Pump Gp     1    
I     1P-0510     Driver Gp     1    


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: Inspect all of the seals. Replace the seals that are worn or damaged.




    Illustration 10g01416277

  1. Use Tooling (B) in order to install bearing (12) .



    Illustration 11g01416275

  1. Use Tooling (I) in order to Install seal assemblies (11) . Repeat step 1 and step 2 for the other side.



    Illustration 12g01416266

  1. Use two people in order to install articulation cylinder (8) . The weight of articulation cylinder (8) is approximately 34 kg (75 lb). Install pin assembly (7) and install the washer (not shown). Install cotter pin (6) .

  1. Install bolt (9) and install the bushing (not shown).

  1. Connect hose assemblies (10) .



    Illustration 13g01416168

  1. Install pin (5) and install the washer (not shown).

  1. Install bolt (4) and install the bushing (not shown).



    Illustration 14g01415927

  1. Position hose (3) and install clamp assembly (4) .



    Illustration 15g01415940

  1. Position hose (3) and install clamp assembly (2) .



    Illustration 16g01401885

  1. Close left side door assembly (1) .



    Illustration 17g01368952

  1. Remove Tooling (A) .

  1. Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check".

  1. Fill the cooling system. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".

  1. Disconnect the steering frame lock. Refer to Operation and Maintenance Manual, "Steering Frame Lock".

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