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 2011 komatsu PC 138-8 The machine does not have any
Hi Pearl, I have a 2011 komatsu PC 138-8 The machine does not have any digging power and swings slower then normal . It travels ok … read more
Jeremy
Jeremy
Senior Technician
Associate Degree
1,505 satisfied customers
How to change alternator on PC12UU. That is the model # But
how to change alternator on PC12UU JA: What is the complete model and serial number of your machine? Customer: that is the model # JA: Are you fixing this yourself? What have you tried so far? Custome… read more
Jeremy
Jeremy
Senior Technician
Associate Degree
1,505 satisfied customers
I have a pc 128 uu-2 and im flashing e40 code, which I do
i have a pc 128 uu-2 and im flashing e40 code , which I do believe is potentiometer is out of range . any ideas ? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
I have a Komatsu PC 240 LC-10. Water contaminated diesel was
I have a Komatsu PC 240 LC-10. Water contaminated diesel was put in our machine The dealer is telling us that we need to replace injectors, fuel pump, etc. They are telling us they need to remove the … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
I have a komatsu question. what is the cost to ask? How do I
I have a komatsu question. what is the cost to ask? … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
I have 2 320-1 komatsu wheel loaders one the torque
i have 2 320-1 komatsu wheel loaders one the torque converter over heat light keeps comming on . and will not move The other just quit operating and all the hydraulic oil was pumped into the transmiss… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
COMPRESSOR WILL NOT KICK ON WHEN A/C CHARGE IS RIGHT. I CAN
COMPRESSOR WILL NOT KICK ON WHEN A/C CHARGE IS RIGHT. I CAN BY PASS, DIRECTLY RUN CURRENT TO A/C CLUTCH AND IT COOLS GREAT. PRESSURE STAYS GOOD WHEN RUNNING, BUT NO POWER COMES FROM MACHINE. 2005 KOMA… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
My excavator Komatsu Komatsu PC 15R-8 will start but not
Please my excavator Komatsu Komatsu PC 15R-8 will start but not move a millimeter. I tested the switch in the saftey lever by shorting it out but no difference. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
I have Komatsu PC28UU-3 Year 2001, Serial # 31103, I am
I am located in Anchorage, AK. There is no Komatsu service center. I need to be able to fix this myself. Engine has running issues. It starts up and then stalls. Especially when under any load (driving, or boom) engine stops. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
Where are the hydraulic filters on a komatsu pc 220-lc6
where are the hydraulic filters on a komatsu pc 220-lc6 avance. i know of the one in the tank. are there others … read more
Jeremy
Jeremy
Senior Technician
Associate Degree
1,505 satisfied customers
I have a Komatsu pc 160 excavator. I bent the diesel fuel
I have a Komatsu pc 160 excavator. I bent the diesel fuel neck that protrudes up about 6 inches so bad that I can't straighten out enough to get a cap on it. Ant way to cut it off and weld a new fuel … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
PC 100-5 Komatsu excavator no power from key to starter
PC 100-5 Komatsu excavator no power from key to starter replaced battery relay still nothing. lights stayed on in console occasionally but now nothing no click in battery relay or anything … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
I'm using a pc 27 MR komatsu mini ex, everything was working
I'm using a pc 27 MR komatsu mini ex, everything was working fine, but now when I drop the arm lock lever it doesn't do anything, meaning it doesn't engage the controls, I tried pressing the button un… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
Dan tried to help a few weeks back and nothing has worked JA: We'll d
dan tried to help a few weeks back and nothing has worked … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
Komatsu pc28uu boom joysticks has no control. theres a light
komatsu pc28uu boom joysticks has no control. theres a light on the dash that's in Japanese that's on. everything else works … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 satisfied customers
Komatsu 220LC-5L excavator loses power as it moves, heard a
Komatsu 220LC-5L excavator loses power as it moves, heard a strange noise first. Is it the hydraulic or what could be causing the problem? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
8,715 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
803 satisfied customers
How do you track down the problem with the safety switch on
How do you track down the problem with the safety switch on a Komatsu mini-ex model #PC28UU? Tracks work, blade works but the boom won't respond.… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
294 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:

Wayne

Wayne

Journeyman

803 satisfied customers

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

Cat Man

Cat Man

Cat Engine Expert

558 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

Mechanic

294 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.

Don

Don

Journeyman

13 satisfied customers

i am a red seal canadian mechanic with thirty years experience

< 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