Hydraulic Oil May Leak from the Tube Assembly of the Pump Lines Group on Certain Knuckleboom Loaders {5057} Caterpillar


Hydraulic Oil May Leak from the Tube Assembly of the Pump Lines Group on Certain Knuckleboom Loaders {5057}

Usage:

559D KL5
Knuckleboom Loader
2384D (S/N: KP51-UP)
2484D (S/N: KP71-UP)
559D (S/N: KL51-UP)
579D (S/N: KL71-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

Hydraulic oil may leak from the tube assembly of the pump lines group on the machines listed above.



Illustration 1g06366542
(A) Location of the hydraulic leak
(B) Leakage in the tube assembly

Solution

In the event of hydraulic oil leak, replace the 478-5945 Tube As with the same part number.

Caterpillar Information System:

PM620, PM622, PM820 and PM822 and PM825 Cold Planer Machine Systems Access Door
PM620, PM622, PM820 and PM822 and PM825 Cold Planer Machine Systems Pump Drive
The Plug Assembly In the Motor Head Group May Become Loose and Leak Oil on the Travel Motors on Certain Track Feller Bunchers {3202, 5058} The Plug Assembly In the Motor Head Group May Become Loose and Leak Oil on the Travel Motors on Certain Track Feller Bunchers {3202, 5058}
PM620, PM622, PM820 and PM822 and PM825 Cold Planer Machine Systems Hydraulic Cylinder - Lines
Certain Cat® Product Link PL542 Devices May Take Longer Time Than Expected To Complete Registration {7606} Certain Cat® Product Link PL542 Devices May Take Longer Time Than Expected To Complete Registration {7606}
789D CMD Off-Highway Truck Chassis Electronic Control System (Command For Hauling) Electrical Component and Connector Locations
Updated Cylinder Block Rear Housing Gasket is Now Available for Certain Cat® Machine Engines {1157, 1201} Updated Cylinder Block Rear Housing Gasket is Now Available for Certain Cat® Machine Engines {1157, 1201}
Hood or Right-hand Insulation may be Damaged on Certain F and F2 Series Backhoe Loaders {7150, 7170, 7251, 7263} Hood or Right-hand Insulation may be Damaged on Certain F and F2 Series Backhoe Loaders {7150, 7170, 7251, 7263}
The Final Drive Group has been Improved on Certain 777F and 777G Off-Highway Trucks {4050} The Final Drive Group has been Improved on Certain 777F and 777G Off-Highway Trucks {4050}
Manufacturing Process for the Standard Shift Transmission Synchronizer Sleeve Has Been Improved on Certain Backhoe Loaders {3030, 3053, 3063} Manufacturing Process for the Standard Shift Transmission Synchronizer Sleeve Has Been Improved on Certain Backhoe Loaders {3030, 3053, 3063}
The Implement Valve Tilt or Lift Section Centering Spring May Break on Certain Compact Track Loaders, Multi Terrain Loaders, and Skid Steer Loaders {5051} The Implement Valve Tilt or Lift Section Centering Spring May Break on Certain Compact Track Loaders, Multi Terrain Loaders, and Skid Steer Loaders {5051}
14M Series 3 Motor Grader Circle Drive Pinion Teeth - Lubricate
Recommended Inspection, Maintenance and Operation to Achieve Longer Service Life for Certain Quick Couplers {6129} Recommended Inspection, Maintenance and Operation to Achieve Longer Service Life for Certain Quick Couplers {6129}
Configure Tire Pressure Monitor Sensor on Certain K-Series Wheel Loaders and Dozers {1408, 1439, 4203} Configure Tire Pressure Monitor Sensor on Certain K-Series Wheel Loaders and Dozers {1408, 1439, 4203}
789D CMD Off-Highway Trucks (Command for Hauling) Power Train Electronic Control System Hoist System Function
Wiper Motor May Fail on Certain 700 Series Articulated Trucks {7305} Wiper Motor May Fail on Certain 700 Series Articulated Trucks {7305}
Transmission Output Speed Sensor May Fail on Certain 700 Series Articulated Trucks {3073, 3167, 3175} Transmission Output Speed Sensor May Fail on Certain 700 Series Articulated Trucks {3073, 3167, 3175}
Inertia Measurement Unit Sensor May Fail on Certain 700 Series Articulated Trucks {1408, 1439} Inertia Measurement Unit Sensor May Fail on Certain 700 Series Articulated Trucks {1408, 1439}
The CMPD Monitor May Malfunction on Certain 700 Series Articulated Trucks {1408, 7301, 7490} The CMPD Monitor May Malfunction on Certain 700 Series Articulated Trucks {1408, 7301, 7490}
Backup Alarm May Fail on Certain 700 Series Articulated Trucks {1408, 7406} Backup Alarm May Fail on Certain 700 Series Articulated Trucks {1408, 7406}
Heating Ventilation and Air Conditioning (HVAC) Sensor May Fail on Certain 745 Articulated Trucks {1439, 7320} Heating Ventilation and Air Conditioning (HVAC) Sensor May Fail on Certain 745 Articulated Trucks {1439, 7320}
Body Position Sensor May Fail on Certain 700 Series Articulated Truck {1408, 1439, 5736} Body Position Sensor May Fail on Certain 700 Series Articulated Truck {1408, 1439, 5736}
Product Link Antenna May Fail on Certain 700 Series Articulated Trucks {7338, 733B, 733T, 7606} Product Link Antenna May Fail on Certain 700 Series Articulated Trucks {7338, 733B, 733T, 7606}
Air Conditioning Pressure Sensor May Fail on Certain 745 Articulated Trucks {1439, 1808} Air Conditioning Pressure Sensor May Fail on Certain 745 Articulated Trucks {1439, 1808}
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.