Construction and Road Equipment

Construction and road equipment repair questions? Ask a mechanic ASAP

Connect one-on-one with {0} who will answer your question

Related Construction and Road Equipment Questions
I have a cat 287b hving issues with drive circuit it will
i have a cat 287b hving issues with drive circuit it will drive normal forward and reverse . when traveling and turn left or right it will stop pilot pressure drops out release joystic and drive forward or reverse pilot comes back up aproxametly 450-500psi. hyd pump was replaced im told i changed pilot valve and pilot comp. cartrige on pump i do not have a good schematic of drive circuit … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have an ASV RC60 with around 1500 hrs. The problem I am
I have an ASV RC60 with around 1500 hrs. The problem I am having is when the machine is warmed up and under load the charge pressure drops and the brake comes on. If I baby it I can still use it but i… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
05 kx121-3 excavator kubota, 05 kx121-3 excavator kubota.
05 kx121-3 excavator kubota. Week ago thumb started working real slow .took thumb cyl off and had checked. Was fine all other hyds systems fine.pulled valves apart and blew out no difference. today noticeable lack of power in other systems. Travel main lift etc.remembered a month ago putting walmart hydraulic oil in thought might be plugged filters,replaced filters and fluid no difference … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
What is the problem with a palfinger pc 1300compact crane not
what is the problem with a palfinger pc 1300compact crane not lifting/slewing no pressure @gauge works now/then?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
Cae 9020 wont rotate and wont drive right track there was a
cae 9020 wont rotate and wont drive right track there was a pump failure and the pump was replaced it worked for 2 weeks and then started to not drive 1 track and rotate. On the 1st pump lost the pist… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have a PC27mr-3 that working really slowly, we change the
Hi, I have a PC27mr-3 that working really slowly, we change the hydraulic pump for a new one, and still working slow very slow… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have a doosan dl200. Engine overheating. I think my fan
I have a doosan dl200. Engine overheating. I think my fan isn't working properly. What is pump pressure suppose to be at fan valve manifold. And how can I check it? I have gauge but not sure if it's r… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
J D 790 ELC track . All hydralics suddenly became jerky.
J D 790 ELC track hoe. All hydralics suddenly became jerky. Like the controls are turning in and off. If you hold the bucket curl it will curl then stop then curl and so on. Tracks are the same. You c… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have a kobelco sk135 sr it has got slow in right track
Hi I have a kobelco sk135 sr it has got slow in right track and I the dipper arm centre joint good pump seems good I do wonder if the pump is cranking right up computer tell me system is on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
Dan I have a Komatsu pc78mr6, the entire hydrolic system has
Dan I have a Komatsu pc78mr6, the entire hydrolic system has really slowed down, even tracking very slow. I have change the oil and filters. Oil looked good and only 2600 hrs on machine. Regularly mai… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have a Hanix S& 550 and the hyd pump started cavitating,
I have a Hanix S&B 550 and the hyd pump started cavitating, so I thought the filter was stopped up so I loosened the filter but it was fulk of oik so I retughtened it & thought maybe I didn't have eno… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
Why is my Ex 200-5 still slowing down so much once oil worms
Why is my Ex 200-5 still slowing down so much once oil worms ? It has a rebuilt pump also new pilot pump.that power is there, just slowing down as the oil worms up ,has 15,000 hours an… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have 2009 JCB 426HT with hydraulic lift problem. All functions
I have 2009 JCB 426HT with hydraulic lift problem. All functions work above idle Only lift function will raise under 1090 rpms. It stop dead, wont raise above 1100 rpms. All other functions work above… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I am working on a Shantui SD16 and the transmission is overfilling
I am working on a Shantui SD16 and the transmission is overfilling in minutes of running the unit, while drain the hydraulic tank. I have fixed a shaft seal leak on the steerin pump but can't find any… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
Ihave a 305 cat excaviator with an hyd problem can start work
Ihave a 305 cat excaviator with an hyd problem can start work for one or two hrs then it loose power in hyds pump pressures check ok could the problem be in the control valve or the pressure relife va… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
Have a 120-2 hydraulic quite just like you turned off a switch
Have a 120-2 hydraulic quite just like you turned off a switch the is very little function at every control , pump is driving have lots of pressure on the pilot control pump… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
I have an older 1080 b ripping frost today and lost power on
I have an older 1080 b ripping frost today and lost power on part of the hydraulics,1 track drives ,up down works, crowd very weak and rotation weak.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,236 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Curtis B.

Curtis B.

Technician

2,442 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.

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x