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

Komatsu D275AX-SEO, pushing travel lever to the right in…

Customer Question
Komatsu D275AX-SEO, pushing travel...

Komatsu D275AX-SEO, pushing travel lever to the right in neutral no response until it is pushed all the way over, the same in forward, put it in reverse, and it dose the same thing, but pushing the lever to the left! Thanks *****: What is the complete model and serial number of your machine?

Komatsu D275AX-SEO Ser.# 30237

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

Not at this time! Thanks!

Submitted: 2 years ago.Category: Construction and Road Equipment
Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 3 hours by:
2/10/2020
Mechanic: Dan, Technician replied 2 years ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,112
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Verified

Hi, My name is***** will be glad to help. We can follow up as needed on here, Give me some time to review your information and follow up with my responses. Professionals are not employees of the site but users of the site and help on here as time allows in between jobs, family, etc. Response time can vary depending on my work load each day but I will always respond back on my next available login. Feel free to respond back at anytime if for any reason we seem to get separated, for status, etc.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 2 years ago
Thanks!
Mechanic: Dan, Technician replied 2 years ago

Power Train Electronic Control System

Smooth and soft operation

D275AX-5E0 utilizes a newly designed power train electronic control system. The controller registers the amount of operator control (movements of lever and operation of switches) along with machine condition signals from each sensor, to calculate accurately the control of the torque converter, transmission, HSS (Hydrostatic Steering System) and brakes for optimal machine operation. The ease of operation and productivity of the new D275AX-5E0 is greatly improved through these new features. ECMV (Electronic Controlled Modulation Valve) controlled transmission Controller automatically adjusts each clutch engagement depending on travel conditions such as gear speed, revolution and shifting pattern. This provides smooth shockless clutch engagement, improved component reliability, improved component life and operator ride comfort. Hydrostatic Steering System—smooth, powerful turning The Hydrostatic Steering System (HSS) is powered by an independent hydraulic pump with engine power transmitted to both tracks without power interruption on the inside track. When the machine turns, the outside track moves faster and the inside slower, for smooth, powerful turns. Counter-rotation is available for minimum turning radius providing excellent maneuverability. Shock-free steering reduces machine vibration and minimizes operator fatigue. D275AX-5E0 HSS system is equipped with a pivot turn mode switch on the dashboard. When the pivot turn mode is selected or the machine reaches the limit of HSS during a turn, the turning side brake is engaged. This results in a pivot turn with a short turning radius. Auto downshift function Controller monitors engine speed, travel gear and travel speed. When load is applied and machine travel speed is reduced, the controller automatically downshifts to optimum gear speed to provide high fuel efficiency. This function provides comfortable operation and high productivity without manual downshifting. This function can be cancelled with cancel switch. Electronic Controlled Modulation Valve (ECMV) Conventional modulation valve Time Clutch pressure F1-R1 MODE F1-R2 MODE F2-R2 MODE Press DOWN switch Press DOWN switch Press UP switch Press UP switch UP DOWN Heavy load Light load Actuated on heavy load or steep slope 4 ● Turning while dozing— the machine turns by driving the left and right tracks under power at different speeds allowing the machine to travel at the same speed as in straight dozing. ● Side cutting— when side-loading the blade, straight travel can be maintained utilizing HSS. ● On downhill slopes— the machine doesn’t require countersteering. The joystick provides the same steering response on downhill slopes as on flat ground. ● Grading— can be done efficiently without damaging the ground, because the inside track is not locked during turning.

The first thing I recommend doing is having your controls recalibrated using the Komatsu diagnostic software on a laptop as it is very possible that your controls are no longer in calibration. I would also check to see if there are any fault codes logged that would indicate a potential problem with a sensor or wiring issue etc. that also could contribute to the cause. If there are no codes and all of your wiring and sensors check out okay, I would run to the calibration process and possibly a reprogram or reflash of the ECM software. Just to be safe, check your oil level and condition to see if there is any sign of metal or any sign of internal mechanical failure occurring by looking inside your oil filters and suction screen. It's a pleasure to help anyway I can.

Ask Your Own Construction and Road Equipment Question
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 Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,112
15,112 Satisfied Customers
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.

Dan is online now

Related Construction and Road Equipment Questions
Case 1840 left forward slow. Left reverse good, right
case 1840 left forward slow. Left reverse good, right forward and reverse good … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
I have 2001 deere 650H, the rats have eaten some of thte
I have 2001 John deere 650H, the rats have eaten some of thte wires to the transmission harness. I have spliced back together and still getting TCU codes and the machine will not move … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a 550j that some rats got to and chewed up some
I have a 550j that some rats got to and chewed up some wiring. I think I have found and repaired everything they chewed on but the TCU still shows a 311 code. Is there a reset required or will those c… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
My boss has a 450j lgp crawler and he has recently replaced
Hello Dan. My boss has a 450j lgp crawler and he has recently replaced the t c m. The TCM is saying 1cal. Does the trans control module need to be calibrated? The blade will not go up and down anymore… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
2008 450j deceleration pedal not working after calibration.
2008 450j deceleration pedal not working after calibration … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a 700j deere. Tcu in cab behind seat had a mouse nest
Second opinion] I have a 700j deere. Tcu in cab behind seat had a mouse nest on it for a few months while not in use says cal on screen. Check code light flashing on dash. Drives straight and steers f… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a Hitachi DX40 Dozer. I cannot get it to turn. I
I have a Hitachi DX40 Dozer. I cannot get it to turn. I suspect I am low on transmission fluid (?) but don't know where the fill is located. I believe it may be under the seat? There is what appears t… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a Komatsu D41S-3 (1986) The steering pedals are
I have a Komatsu D41S-3 (1986) The steering pedals are sticking and the right pedal will not depress at all. Thinking need to replace the break bands but unsure how and if anything else needs consider… read more
Mikael
Mikael
Bachelor's Degree
150 satisfied customers
I just got a series E100. I can get it to turn on, but not
I just got a series E100. I can get it to turn on, but not travel forward or in reverse. Am I missing something? Parking brake is off. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Have a 750c dozer with fault code f677 and f675 what does
have a 750c dozer with fault code f677 and f675 what does this mean … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a komatsu Was 250-3 MC. The unit will not move
I have a komatsu Was 250-3 MC. The unit will not move forward or reverse. The transmission pressures have been tested good at the dealer. Moves if you manually depress the valves. I have replaced the … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a 312D track excavator had a ram fall On bucket crowd
I have a 312D long track excavator had a ram fall On bucket crowd ram cleaned the spool out had metal in it now it won't swig to the right n we backed it in the shed all tracks walked forward n back n… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Komatsu wheel loader 180-1. replaced electric fuel pump
Komatsu wheel loader 180-1. replaced electric fuel pump control. working well but unable to select forward /reverse gears. appears to be a safety lockout in place. please explain? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a TC35a Tractor Ser #G600056 It starts OK but won't
I have a TC35a Tractor Ser #G600056 It starts OK but won't let me put it into fwd or rev. It acts as though there's a solenoid that's locking me out … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
I have an IR backhoe with the Italian axial pump I need to
I have an IR backhoe with the Italian axial pump I need to know how to adjust the neutral on this machine Bobcat can't help,it is same as in B300,I put new spring in compensator valve … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
KOMATSU D31E CREEPS AT LOW IDLE FORWARD OR REVERSE. SER#
KOMATSU D31E CREEPS AT LOW IDLE FORWARD OR REVERSE. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
2008 bobcat 442 excavator. push both steer lever forward and
2008 bobcat 442 excavator. push both steer lever forward and it moves forward. pull both levers back and it move back. push one lever forward and pull one lever back and the machine lock down.. what t… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,112 satisfied customers
I have a big CAT delivery coming, but have never driven such
I have a big CAT delivery coming, but have never driven such an old machine. How do you release the parking brake on a 1972 CAT 988? It has a knob that I think you set by pulling up. And how do you sh… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 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