Construction and Road Equipment

Construction and road equipment repair questions? Ask a mechanic ASAP

Ask an Expert,
Get an Answer ASAP!

Related Construction and Road Equipment Questions
I am working on a Caterpillar excavator model 245B
Hello, I am working on a Caterpillar excavator model 245B ser#6MF00035 and I am having issues with the pressures on hydraulic pumps. When I lift the boom and bottom it out at full idle I read a pressu… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
Cat 303.5 swing and blade stopped functioning. Cat303.5
replaced one solenoid and two relay. also replacing some frayed wires … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
Volvo ec 330 bloc s/n 80039 the swing motor stops the minute
Volvo ec 330 bloc s/n 80039 the swing motor stops the minute u let the leve go it doesn't gradually stop … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
This is for Expert Catmastertech 330D Sn DKY00289 Can a worn
This is for Expert Catmastertech 330D Sn DKY00289 Can a worn swing pri valve cause and over swing on the swing right func?… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
I have a cat 322bl sn 8nr00291. It will swing left but wont
Hello, I have a cat 322bl sn 8nr00291. It will swing left but wont brake but wont swing right but will brake, I've installed new solenoids front and back on the swing motor and swapped the cross over … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
I have a caterpillar el200b that won't swing. It was
I have a caterpillar el200b that won't swing. It was swinging and then stopped. I can hear it laboring when I try to swing it but no movement. We cracked the case drain line and there is hardly any fl… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
Well i just bought another excavator and run it for two hrs
well i just bought another excavator and run it for two hrs and now it wont swing either direction its a 2005 321c … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
Have a kamatsu 200 swing brake is stuck on Komatsu. Wb 215
have a kamatsu 200 swing brake is stuck on Komatsu … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
I have a 2011 Komatsu PC 138 with a brand new motor. It
I have a 2011 Komatsu PC 138 with a brand new motor. It keeps shutting off. I have to wait 30 mins and then it starts. The dealer has no clue why it happens. It does not throw a code. It has a new mot… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,529 satisfied customers
I have a 95 PC 150-5 when machine is warm it will stop
I have a 95 PC 150-5 when machine is warm it will stop swinging intermittently, we replace the swing brake selonoid and it still does it, any ideas … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
I have a link-belt LS 5000 excavator. The swing-lock pawl is
I have a link-belt LS 5000 excavator. The swing-lock pawl is broken. What procedures do I need to do to remove said pawl… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
Field testing the brakes on a deere 690e-lc excavator, We
field testing the brakes on a john deere 690e-lc excavator … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
I have a cat 420d both swing cylinders were leaking hydro. I
I have a cat 420d both swing cylinders were leaking hydro. I rebuilt the cyls like before, under gravity, the boom will swing side to side, without using the controls. if you lean the machine one way … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
My Komatsu PC60-7, serial 58403, was working fine last use.
My Komatsu PC60-7, serial 58403, was working fine last use. Today I started it up and it won't swing. It seems locked in "swing lock" mode, but the Swing Lock switch and indicator are not engaged or l… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
Hello, I have a 320 Cat/Favco 30 ton. Unable to swing. Engine loads up when trying to swin
Hello, I have a 320 Cat/Favco 30 ton. Unable to swing. Engine loads up when trying to swing. I've located four solenoid valves located on pilot system near pump. I've also located solenoid valve on sw… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
I have a cat 302.5c that I am trying to add a thumb to and
I have a cat 302.5c that I am trying to add a thumb to and the thumb will only operate in one direction, I have tried it with the work tool valve in two way and one way with same results. I noticed wh… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 satisfied customers
Komatsu pc 120-3 excavator swing brake wont release Im
Komatsu pc 120-3 excavator swing brake won't release I'm working for a guy who bought an old worn out PC120, to do 2 projects. It's really tired& worn, but it's stayed together pretty well. Last year,… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
959 satisfied customers
my customer has a cat 312b sn 8jr012241 it will swing around
my customer has a cat 312b sn 8jr012241 it will swing around fast but when you swing slowly it locks down the swing every certain clock position. we removed the swing drive motor and all gears look in… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,283 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

1,529 satisfied customers

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

Wayne

Wayne

Journeyman

650 satisfied customers

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

Cat Man

Cat Man

Cat Engine Expert

517 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

Mechanic

273 satisfied customers

Road Mechanic for Volvo Construction Equipment.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

42 satisfied customers

16 years of experience

Steve

Steve

Mechanic

42 satisfied customers

Heavy Equipment Mechanic for 25 years

JBFixxer

JBFixxer

Mechanic

20 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