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

This answer was rated:

Have a cat 277b that won’t charge. Cat0277bjmd02154 cat 277b…

Have a cat 277b...

Have a cat 277b that won’t charge

Mechanic's Assistant: What is the complete model and serial number of your machine?

Cat0277bjmd02154 cat 277b multi terrain loader

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

I am fixing this myself and I have repaired all the broken wires coming off the back of th alternator. When I first started battery was only holding 7volts. Now battery holds 11.5v and starts with out being jumped. But I have no hour meter and alternator is not exciting

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

That’s it

Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 1 hour by:
9/22/2018
Mechanic: catmastertech, Technician replied 4 years ago
catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,043
Experience: Field service technician for CAT 19 years.
Verified

Hello,

I am sorry no one could help you earlier. I hope this is not too late to be helpful. All experts are not employees, we work from home in our spare time to answer questions and like most places, this is a busy time for everyone.

You already seem to know a lot about this machine. How are you with harness testing and repairs?

Ask Your Own Construction and Road Equipment Question
Customer reply replied 4 years ago
ohm the harness. But it’s hard to ohm it correctly without a diagram . Alternator has been replaced. And just lost that this alternator has no ground. But there is no power draw on the batteries. I am looking for a charging diagram for this machine so I can figure it out
Mechanic: catmastertech, Technician replied 4 years ago
My internet has gone down so I am not able to do more research.
I can tell you the wire connections for the three wires on the back of the alternator.
The wires have numbers on them and colors are the same on both ends of the circuit.
The C444 yellow wire goes from the P terminal to the monitor panel.
The 308 yellow wire is the key switch power for accessory circuits and connects to the (i) terminal.
The 403 green wire is from the L terminal to the hour meter signal terminal. (It may also connect to the security system if it is used on your machine.)
Ask Your Own Construction and Road Equipment Question
Mechanic: catmastertech, Technician replied 4 years ago

If you need more details, please let me know. I will be glad to help as much as I can. I cannot provide schematics as they are copyrighted material and that is against site policy.

I think you have three main harnesses to check. The engine, the platform, and the cab. If you find the circuit is shorted or open on one of the three listed earlier, please let me know and I will provide more details about the one you need to trace out.

catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,043
Experience: Field service technician for CAT 19 years.
Verified
catmastertech and 87 other Construction and Road Equipment Specialists are ready to help you
Ask your own question now
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask catmastertech Your Own Question
catmastertech
catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,043
4,043 Satisfied Customers
Experience: Field service technician for CAT 19 years.

catmastertech is online now

Related Construction and Road Equipment Questions
Not charging, replaced alternator still not charging.
Not charging, replaced alternator still not charging … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
Cat 277B all of a sudden while working lost all hydraulics.
Cat 277B all of a sudden while working lost all hydraulics. No bucket control or forward /reverse. No charge pressure so change the pump still No action. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
I have a T650 Bobcat with an error code M4109. FM01390 T650
Hello, I have a T650 Bobcat with an error code M4109 … read more
Fieldtech59
Fieldtech59
418 satisfied customers
The battery light has been on recently in my Cat 242B even
The battery light has been on recently in my Cat 242B even though there's a relatively new battery in it. I had to jump start it once last week, but it's been starting fine since. Yesterday the engine… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Have a Cat 247, was working on an incline and noticed the
Have a Cat 247 b , was working on an incline and noticed the oil pressure alarm came on a couple of times. Stopped the engine and the thing won't crank over at all - just initial click. Battery is goo… read more
Bradey V
Bradey V
Certificate
Cat 259. 2013. Alt not charging. Cato259dhftLoo294. New
Cat 259. 2013. Alt not charging JA: What is the complete model and serial number of your machine? Customer: Cato259dhftLoo294 JA: Are you fixing this yourself? What have you tried so far? Customer: ne… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
I have a Cat 267 skid steer. It quit charging we replaced
I have a Cat 267 skid steer. It quit charging we replaced alternator with cat reman did not fix problem. Thought is was a bad reman so got another from cat still will not charge. we have been running … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
With the CAT 287 tool problem. I have not had too much time
Hey its Scott with the CAT 287 B tool problem. I have not had too much time lately but I finally got the floor pan off and found 5 gallon bucket worth of mud in there. Cleaned everything out by hand a… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
I have a CAT 277. my right track is moving forward and
hi, I have a CAT 277. my right track is moving forward and reverse but my left track will only move an inch forward or back. what could be the issue? … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
I have a 2000 volvo L30 loader. Recently, after I start the
I have a 2000 volvo L30 loader. Recently, after I start the loader, the battery light on the dash lights up constant. when I select forward and hit the accelerator. The forward arrow on the dash and t… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
299 satisfied customers
My 250 skid steer battery light will not go out. Alternator
My 250 skid steer battery light will not go out. Alternator has been checked, 14 volts on bench but 12.47v on machine. Battery is new. Starter has been checked. I put new key switch, solenoid new and … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Cat multi terrain loader coming up as 'Low voltage fault
Cat multi terrain loader coming up as 'Low voltage fault check battery and alternator' the voltage seems normal around 14 while running … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,244 satisfied customers
I have a 2015 cat262D skid steer with 300 HRs on it. 262D
I have a 2015 cat262D skid steer with 300 HRs on it … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
I have a cat 226b and it died while using all day my guys
I have a cat 226b and it died while using all day my guys thought it ran out of fuel so I showed up next morning and added fuel and primed it, tried to start but just clicked like battery low so I jum… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,244 satisfied customers
I have purchased a new hydraulic mower and have attached it
I have purchased a new hydraulic mower and have attached it to my CAT 257B and cannot get the mower's hydraulic motors to turn the blades … read more
Bradley Martin
Bradley Martin
77 satisfied customers
416B Cat TLB PIN#8SG02307 can you tell me how to change the
416B Cat TLB PIN#8SG02307 can you tell me how to change the bearing on the joystick that controys the loader.… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
Cat 257b not charging battery when running. New alternator
Cat 257b not charging battery when running. New alternator and new battery Run about 2 hours and lock the function down Parking light starts flashing… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 satisfied customers
i have a 277b cat skid steer and when i run an auger the auger
i have a 277b cat skid steer and when i run an auger the auger keeps kicking out. I have tried 2 differant auger heads now so i know its not the augerhead I think it might be the switch in the little … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,043 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