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Related Construction and Road Equipment Questions
Where is the two way auxiliary switch located on a 2070
Hi. Where is the two way auxiliary switch located on a 2070 John Deere excavator. My excavator auxiliary hydraulics are only working in one direction. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,356 satisfied customers
Got a 200 clc 2005 excavator put a used thumb on it thumb is
got a 200 clc 2005 excavator put a used thumb on it thumb is slow but when arm is moved out it moves faster it is a foot switch pilot oil over hydraulic … read more
Dan
Dan
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John Deere 790 excavator. Bogs down and stalls with any hyd
John Deere 790 excavator. Bogs down and stalls with any hyd functions. Engine runs strong. Just changed one injector and all 6 injector fuel lines as they were leaking. Thought possibly the cause. But… read more
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The thumb on my L45 Kubota backhoe stopped holding pressure.
The thumb on my L45 Kubota backhoe stopped holding pressure. It still moves in and out with the foot pedal, but collapses when the bucket is pulled in toward it. … read more
Chris (aka- Moose)
Chris (aka- Moose)
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I have a 135 Deere excavator and the thump is stuck on it I
I have a 135 John Deere excavator and the thump is stuck on it I replaced the foot pedal pump and it is still not working I disconnected the thump and the pump is still stuck causing the machine to ha… read more
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I have a Volvo 140 BLC and just installed a thumb and was
HI I have a Volvo 140 BLC and just installed a thumb and was able to adjust the pressure down to 1850 on one side of the valve bank but I can find the adjustment for the other side? … read more
Dan
Dan
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Link belt excavator. Thumb will open but not close. I
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I have an excavator. I need top manage or adjust the
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Auto Mechanics 1&2/diesel mech
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2016 26G. Just purchased new JD Hydraulic Bucket Clamp
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Its a 35c excavator. Are you familiar with the hydraulics?
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Dan
Dan
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Auto Mechanics 1&2/diesel mech
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I HAVE A 1989 EL490 JOHN DEERE EXCAVATOR WITH A FOUR
I HAVE A 1989 EL490 JOHN DEERE EXCAVATOR WITH A FOUR CYLINDER DIESEL ENGINE. IT HAS A FULLY MECHANICAL FUEL PUMP. THE ENGINE WILL START, RUN FOR 30 SECONDS AND THEN SHUT DOWN. WAIT A FEW SECONDS AND I… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Deere 310se no hyd presure. hyd pump replaced. reliev valves
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Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Having a problem similar to K. who asked a question
Hello John, Having a problem similar to Jim K. who asked a question 8/28/2009 about setting pressure on a JD Loader backhoe and if I read it right it looks like the system pressure is set from the buc… read more
Dan
Dan
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I have a 2003 cat 303 cr just put a thumb on and wondering
I have a 2003 cat 303 cr just put a thumb on and wondering how to adjust the auxiliary hydraulic valve… read more
Dan
Dan
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This question involves a JD 790E LC excavator. I have two
i have two issues that I need assistance in solving. Hopefully on Saturday. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
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Installed two new boom cly. Installed two new boom cylinders
installed two new boom cylinders had problem drifting down now goes up but not down John Deere 270d Lc. Has only 3739 hrs changed all hyd oil and filters … read more
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Dan
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Auto Mechanics 1&2/diesel mech
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Releaf valve Settings on a Yanmar40 excavator hydrolic
Releaf valve Settings on a Yanmar40 excavator hydrolic thumb … read more
Dan
Dan
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Auto Mechanics 1&2/diesel mech
15,356 satisfied customers
Would like to add hydraulics to thumb on my case 9010b excavator.
Would like to add hydraulics to thumb on my case 9010b excavator. Do you have diagram for this. What is required besides new pilot control, relief valve, valve on high pressure side and valve from pil… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,328 satisfied customers
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Meet the Experts:

Curtis B.

Curtis B.

Technician

2,324 satisfied customers

Technican turned service manager with multiple lines of equipment and rental units.

Wayne

Wayne

Journeyman

1,298 satisfied customers

worked on many road graders, Bull dozers , skid steers, Rollers

Cat Man

Cat Man

Cat Engine Expert

578 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

Mechanic

299 satisfied customers

Road Mechanic for Volvo Construction Equipment.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

85 satisfied customers

24 years of experience diagnosing & repairing

Steve

Steve

Mechanic

42 satisfied customers

Heavy Equipment Mechanic for 25 years

JBFixxer

JBFixxer

Mechanic

22 satisfied customers

16+ years experience, hydraulics,hydrostatics, engines, fuel injection systems. And everything in between.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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