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I have a 743 bobcat, the arm has no pressure down and when I…

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I have a 743...

I have a 743 bobcat, the arm has no pressure down and when I am run the left pedal for the arm and push the right pedal for bucket tilt it reverses the action of the left pedal.

Mechanic's Assistant: What is the complete model and serial number of your machine?

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Submitted: 2 years ago.Category: Construction and Road Equipment
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Answered in 2 hours by:
9/14/2020
Mechanic: Dan, Technician replied 2 years ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,096
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Verified

Hi my name is*****'ll be glad to try to help you out. If you are experiencing these type of problems in certain hydraulic functions or circuits, thoroughly inspect the control valve spools for any damage or debris as well as confirming they are moving freely. Check the relief valve cartridges in your main control valve and within those circuits as well for any damaged O-rings, debris, or any other damage or scoring within the internal machined parts that would cause them to malfunction, stick, or bypass pressure. If all this checks out okay after visual inspection, have your pressures tested with mechanical gauges to confirm that your pressures test within the OEM specifications covered your model and serial number service book. Reply back with the results of these checks if any further help is needed. It is a pleasure to help anyway I can.

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Dan
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,096
15,096 Satisfied Customers
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.

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