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LOCKNUT 4646115 - Caterpillar



4646115 LOCKNUT Caterpillar parts LOCKNUT
Rating:
16
Alternative (cross code) number:
CA4646115
464-6115
4646115
Caterpillar 4646115 LOCKNUT

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Information:

Problem List (Test Valve Mode)
"No blade function in any direction"
"No function of the blade in a single direction of the blade tilt or no function of the blade in a single direction of raise/lower"
"No function of the blade in tilt left and tilt right or no function of the blade in blade raise and blade lower"
"The operation of the blade is slow or the operation of the blade is delayed"
"Movement without operator input"Probable Causes (Auto Mode)
The AccuGrade System will not engage in the automatic mode and the green light does not illuminate.
Note: The AccuGrade System is programmed to disengage from the auto mode if the machine implements are not moved in 60 seconds and the machine is in neutral.
The pilot valve is in the lower position.
Return the pilot control handle to the neutral position.
The parking brake is on.
Disengage the parking brake.
Electrical system fault
Use Electronic Technician ET in order to check for any system faults. Note: Refer to the "Problem List (Test Valve Mode)" for more information.
Check the Caterpillar Monitoring System for any system faults.
Check the display for AccuGrade for any system faults.ReferenceRefer to the Troubleshooting, "Determining Detected Faults (Display)" for more information.Poor Performance
Note: See "Problem List (Test Valve Mode)" for more problems that can cause poor performance.
Improper setting of the valve speed.ReferenceRefer to Testing and Adjusting, "Blade Reaction Time - Adjust (Valve Speed)" for more information on this procedure.
Improper CalibrationReferenceRefer to Testing and Adjusting, "Linked Elevation (Dual Mast) - Calibrate" and Testing and Adjusting, "Bank (Grade Control) - Calibrate" for more information on this procedure.
Improper setup for the Laser transmitterReferenceRefer to Operation and Maintenance, SEBU8161, "Laser Transmitter Setup Information (Dual Mast System)" for more information on setup of the laser transmitter.
Improper setup of the laser receiverReferenceRefer to Operation and Maintenance, SEBU8161, "Startup (Dual Mast System)" for more information on the setup of the laser receiver.
Improper adjustment of the counterbalance valveReferenceRefer to Testing and Adjusting, "Counterbalnce Valve (Grade Control) - Test and Adjust" for more information on this procedure.
The solenoid valve in the counterbalance valve is not functioning.ReferenceRefer to Testing and Adjusting, "Counterbalnce Valve (Grade Control) - Test and Adjust" for more information on this procedure.
The solenoid in the counterbalance valve has an electrical fault due to an open or a short to ground in the circuit.ReferenceRefer to Troubleshooting for more information on procedures for determining an electrical fault.
Operating conditions are not suitable for the AccuGrade System.ReferenceRefer to Operation and Maintenance, SEBU8161, "General Information" for more information on usage of the AccuGrade System.
Hydraulic oil temperature is too low.
Warm up the machine's hydraulic oil.
The blade on the machine has been changed without recalibration of the counterbalance valve and the AccuGrade System.ReferenceRefer to Testing and Adjusting, "Counterbalnce Valve (Grade Control) - Test and Adjust" for more information on this procedure.ReferenceRefer to Special Instruction, "Installation of the laser system" for more information on this procedure.No float function
Low pilot pressure.ReferenceRefer to Testing and Adjusting, "Pressure Reducing Valve - Test and Adjust" for more information on this procedure.
The solenoid valve in the counterbalance valve


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