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
Boom on excavator goes up when engine starts! Komatsu
Boom cylinder is working as it should … I suspect the control spool in the cab… read more
TomcM28
TomcM28
Owner
Associates
14 satisfied customers
I have a 220-5 Komatsu excavator. Cannot find serial number
cannot find serial number as it's gone off the machine … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
Komatsu pc35 mr 2. Changed oil and cleaned hydraulic
Komatsu pc35 mr 2. Changed oil and cleaned hydraulic strainer and filter. After replenishing oil and start up of machine boom would barely lift up and would drift back down. Mechanic got it operationa… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have a excavator komatsu I released the parking brake
Hi I have a excavator komatsu I released the parking brake machine won't move … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have a 2004 komatsu pc78. I am having an issue with the
Second opinion] I have a 2004 komatsu pc78. I am having an issue with the engine stalling when i curl the bucket and when i boom up and down… read more
Grady Woods
Grady Woods
13 satisfied customers
LOOKING TO PURCHASE A DOZER FROM SOMEONE I KNOW BUT THE
LOOKING TO PURCHASE A DOZER FROM SOMEONE I KNOW BUT THE PROBLEM IS THAT ITS MIXING THE FUEL WITH THE OIL. IS THAT AN EXPESIVE FIX … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
I have a pc 800 excavator the boom will not lift under load
I have a pc 800 excavator the boom will not lift under load we have rebuilt both cylinders changed valves we have plenty of pressure … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
Second opinion] I have a pc 800 excavator the boom will not
Second opinion] I have a pc 800 excavator the boom will not lift under load we have rebuilt both cylinders changed valves we have plenty of pressure … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
How to fix former pump pc_epc solenoid valve circuit.
How to fix former pump pc_epc solenoid valve circuit … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have a cat th63 telahandler and i am having trouble with
I have a cat th63 telahandler and i am having trouble with the boom extending … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
My its a komatsu 200 pc. Ive tried to fix it myself. It
It kranks and runs but only for about 10 minutes then shuts off and throws a E 15 error code and for some reason loses fuel prime… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have just bought a pel job EB506 (1997) with Perkins
Hi. I have just bought a pel job EB506 (1997) with Perkins engine. Digger runs fine and hydraulics seem fine as it will lift machine off ground. Problem is when you fully extend arm, buckets etc the e… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
What work cause my komatsu pc50 mr to stall, It stalls when
Am fixing it my it myself and it stalls as the engine takes the loads … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have a komatsu pc28uu-2 with no down pressure on the
I have a komatsu pc28uu-2 with no down pressure on the boom/bucket. Everything else works fine. It always has the blinking red indicator light on. I have taken the connectors apart on all 3 sensors on… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I have a komatsu 200-7 serial number A87533 and it has 8500
I have a komatsu 200-7 serial number A87533 and it has 8500 hours on it and over the last few years the hydraulics have been getting jerkier for the first half hour of operation? Once the hydraulic oi… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,129 satisfied customers
I am having stalling trouble with a 1994 311 Excavator SN
I am having stalling trouble with a 1994 311 Excavator SN 9LJ00380. It blows black smoke and stalls, or nearly stalls, when putting a load on the machine, or when the cylinders for the boom, stick, or… read more
Derek Neustaeter
Derek Neustaeter
Heavy Duty Equipment Mechanic
1 satisfied customers
looking for information on komatsu excavator PC228UU-1 with
looking for information on komatsu excavator PC228UU-1 with serial number 10549. Is there a sight I can look up?… read more
Fieldtech59
Fieldtech59
418 satisfied customers
I am calculating the maintenance time for a fleet of Komatsu
I am calculating the maintenance time for a fleet of Komatsu equipment which are going to be used in a Iron Ore mine: KAC830E-AC, PC 4000, WD900, WA 1200 D475A, particularly for lubrication. I did it … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
1,298 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

2,324 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.

< 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