Procedure to Troubleshoot Engine Overheating and Hard Steering For CB14B Utility Compactors {1386, 5051} Caterpillar

Procedure to Troubleshoot Engine Overheating and Hard Steering For CB14B Utility Compactors {1386, 5051}

Usage:

Vibratory Asphalt Compactor: CB14B (S/N: 4731-UP)

Introduction

For machines that experience engine overheating and/or hard steering, the following troubleshooting procedure will help to isolate the component and correct the issue. The instructions must be followed to effectively resolve the issue.

Safety Section

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Diesel engine exhaust contains products of combustion which may cause personal injury.

Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.

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Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.
Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.
The machine must be parked on a level surface and the engine stopped.

Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.

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Personal injury or death can result from sudden machine movement.
Sudden movement of the machine can cause injury to persons on or near the machine.

To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.

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Personal injury can result from rotating and moving parts.
Moving fan blades and moving parts will throw or cut any object or tool that falls or is pushed into them.

Make sure no one is working on, underneath or close to an engine that is running. Make sure the area is free of personnel.

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To prevent injury or death, never work under a machine while a test is being performed.

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Reference: Testing & Adjusting, UENR2015, "CB14B Vibratory Asphalt Compactor Machine Systems" for more information.

Troubleshooting Procedure

Refer to Testing and Adjusting, UENR2015, "Vibratory Frequency - Test and Adjust" for Machine Systems to perform this test. If the vibration frequency test fails, refer to, Testing and Adjusting, UENR2015, "Case Drain Flow for Gear Motor (Vibratory) - Test". If the motor case drain flow is within specification, replace the 473-2174 Auxiliary Pump and repeat the vibration frequency test. Once the vibration frequency test checks good, proceed to the next step.
Refer to Testing and Adjusting, UENR2015, "Fan Motor Speed (Radiator Cooling) - Test", and perform this test. If the fan motor speed test fails to reach the minimum speed specification, replace the 394-4551 Gear Motor Gp and repeat the test. If the vibration frequency and fan motor speed tests check good, proceed to the next step.
If hard steering occurs after the vibration frequency and radiator cooling fan motor speed tests meet specifications, replace the 393-9326 Metering Pump Gp. Verify the steering operation is satisfactory with the throttle control switch set to high idle.