R1600G Load Haul Dump Machine Systems Main Control Valve - Remove Caterpillar


Main Control Valve - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     201-2469     Implement Valve Lifting Tool     1    
ZZ     8S-4950     Caps     15    
9S-8927 Plugs     15    
3R-6789 Flared Cap     1    
5P-2299 Flared Plug     1    
6J-7366 Flared Cap     1    
2P-9697 Plug     1    
179-4451 Protective Caps     2    
179-4452 Protective Caps     8    
179-4453 Protective Caps     2    
5H-4019 Covers     2    
5H-4020 Covers     4    
2J-2668 Covers     2    

Start By:

  1. Install the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Remove and Install".
  2. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".

Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.

Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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


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.


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

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

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  1. Drain the hydraulic tank into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the capacity of the hydraulic tank. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the proper draining procedure.



    Illustration 1g01194205

  1. Remove cover (1) .



    Illustration 2g01194204

  1. Remove cover (2) .



    Illustration 3g01194206

  1. Disconnect seven hose assemblies (3) from bulkhead (4) .



    Illustration 4g01194214

  1. Disconnect the wiring harness for the solenoid valve from connector (5) .

  1. Disconnect hose assembly (6) .

  1. Disconnect hose assembly (7) .



    Illustration 5g01194212

  1. Disconnect two hose assemblies (8) from the main control valve.

  1. Disconnect hose assembly (9) from the main control valve.

  1. Disconnect hose assembly (11) from block (10). Remove block (10) .

  1. Disconnect hose assembly (14) from the main control valve.

  1. Remove four bolts (13). Remove block (12) from the main control valve.



    Illustration 6g01194216

  1. Disconnect hose assembly (15) .



    Illustration 7g01194211

  1. Disconnect hose assembly (16) .

  1. Disconnect hose assembly (17) .

  1. Disconnect hose assembly (18) .



    Illustration 8g01194215

  1. Disconnect hose assemblies (19) and (20) .



    Illustration 9g01194535

  1. Install Tooling (A) and a suitable lifting device to main control valve (21). The weight of main control valve (21) is approximately 92 kg (203 lb).

  1. Remove three bolts (22) and main control valve (21) .

Information System:

R1600G Load Haul Dump Machine Systems Steering Cylinder - Remove
R1600G Load Haul Dump Braking System Parking Brake - Manual Release
R1600G Load Haul Dump Braking System Brake Disc Wear - Check
140M and 150 Motor Graders Engine Supplement Aftercooler - Install
3176C Engine for the R1600G and the R1700G Load Haul Dumps Engine Top Speed Is Not Obtained
3176C, 3406E and 3456 Industrial Engines Engine Shutdown Is Intermittent
CP76 and CS76 Vibratory Compactors Propel System Neutral Start Switch - Test and Adjust
3176C Engine for the R1600G and the R1700G Load Haul Dumps Engine Misfires, Runs Rough or Is Unstable
CP76 and CS76 Vibratory Compactors Propel System Pump Control (Manual Displacement Control) Neutral (Axle Propel) - Test and Adjust
3176C, 3406E and 3456 Industrial Engines Engine Cranks but Does Not Start
CS56, CS64, CS74, CS76, CP56, CP64, CP74 and CP76 Vibratory Soil Compactors Engine and Machine Warm-Up
Supplemental Parts Information for the USN Seabee AP655C{1000, 7000}
R1600G Load Haul Dump Machine Systems Main Control Valve - Install
R1600G Load Haul Dump Machine Systems Tilt Lever and Tilt Link - Remove
R1600G Load Haul Dump Machine Systems Tilt Lever and Tilt Link - Install
2007/09/24 An Improved Fuse and ARC Suppressor is Now Used in the Axle Oil Cooler Wiring Harness {1365, 1408}
140H and 160H Motor Graders Changing Direction and Speed
3176C Engine for the R1600G and the R1700G Load Haul Dumps Oil Pressure Is Low
3176C Engine for the R1600G and the R1700G Load Haul Dumps Power Is Intermittently Low or Power Cutout Is Intermittent
3176C Engine for the R1600G and the R1700G Load Haul Dumps Speed Control (Remote Throttle) - Test
938H Wheel Loader and IT38H Integrated Toolcarrier Hydraulic System Ride Control Accumulator - Test and Charge
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Remove
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Install
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Disassemble