Construction and Road Equipment

Construction and Road Equipment repair questions? Ask a mechanic ASAP

Ask an Expert,
Get an Answer ASAP!

Construction and Road Equipment

I have a 1997 Gradall 534c-6. It’s never driven or climbed…

Customer Question
I have a 1997 Gradall...
I have a 1997 Gradall 534c-6.
It’s never driven or climbed anything good in forward but would do so so in reverse. I took the main hydraulic pump off and had it rebuilt. Cleaned all shavings from hydraulic tank and reinstalled pump. Everything seems to work correctly but it has almost no power in forward?
Submitted: 2 months ago.Category: Construction and Road Equipment
Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 24 minutes by:
12/17/2017
Mechanic: Dan, Technician replied 2 months ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 6,164
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 post my responses. Im not an employee of the site but I help on here as time allows in between jobs. Response time will vary depending on my work load , etc each day.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 2 months ago
Trying to get it fig out today for a job site tomorrow. Let me know when I get any info.
Mechanic: Dan, Technician replied 2 months ago

Was it just the pump or did you do both the pump and the drive motor?

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 2 months ago

If there was fine metal contamination in the system, both the pump and the drive motor should have been done. Check the drive motor for excessive case drain pressure indicating excessive internal leakage and confirming the need of rebuild. Let me know

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 2 months ago

Disconnect the drive motor case drain hose and run it into a bucket... deadhead drive so the machine wont move. there should be a low volume of case drain. If high volume or pressure the drive motor is bad

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 2 months ago

If it is okay check the control valves, inching valve, etc for problems and have the pressures tested and pump flow checked to confirm it is running in specs. Let me know what the current pressures are and GPM output from the pump to the drive motor.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 2 months ago
Do u know what test pressures everything should be at or where do
I find that info
Mechanic: Dan, Technician replied 2 months ago

The Parts/operation manuals have some specs limited and some diagrams to help There are some priority valves shown as well it would be a good idea to inspect. I posted the offer above. Let me know once accepted.

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 1 month ago

Hi, Did you get this resolved? Please take a moment to rate as that is how the site credits my time helping on the site or let me know if you need more help. 5 star and bonuses are always greatly appreciated.

Ask Your Own Construction and Road Equipment Question
Ask Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 6,164
6,164 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

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

1,272 satisfied customers

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

Wayne

Wayne

Journeyman

615 satisfied customers

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

Cat Man

Cat Man

Cat Engine Expert

495 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

Mechanic

270 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 >

Related Construction and Road Equipment Questions
I have a Hitachi ZX 330-1 excavator that had a filter
I have a Hitachi ZX 330-1 excavator that had a filter blockage in the fuel line that has been cleaned out. I have full fuel flow from the tank to the back of the injector pump, however I can't get fue… read more
Dan
Dan
Technician
6,164 satisfied customers
What other motors will replace the 1.6 in the 642 bobcat.
what other motors will replace the 1.6 in the 642 bobcat … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
615 satisfied customers
I have a Volvo mc85 skid steer that will lock down while you
I have a Volvo mc85 skid steer that will lock down while you are useing it. It is also giving problems trying to start it. I have seen codes 126 and 127 on dash. The starter acts like it is not gettin… read more
Dan
Dan
Technician
6,164 satisfied customers
2007 RC 100 Has power at ignition but engine will not turn
2007 RC 100 Has power at ignition but engine will not turn over ?? it will start if by pass ignition at starter, any ideals … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,272 satisfied customers
I have a 5.5 tonne new Holland excavator with a new motor
Hi guys, I have a 5.5 tonne new Holland excavator with a new motor and new radiator. The machine is great only working under conditions of 33 degrees but anything over that the temperature gauge rises… read more
Dan
Dan
Technician
6,164 satisfied customers
Our 1984 Mustang /Ford 1700 skidsteer started losing power,
our 1984 Mustang /Ford 1700 skidsteer started losing power, then died completely. It has a recent tuneup and we have checked the plugs, spark plug wires, new coil, and condenser. All seem to be workin… read more
Dan
Dan
Technician
6,164 satisfied customers
How to replace the sliding side window of a 336el excavator.
How to replace the sliding side window of a 336el excavator. 2013 model … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,287 satisfied customers
I have a oil leak where trans bolts to engine.oil is coming
I have a oil leak where trans bolts to engine.oil is coming out of hole that has no bolt or treads it is a 450 series3 case … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,272 satisfied customers
Cat 303.5C CR. All hydraulics work fine except boom swing.
Cat 303.5C CR. All hydraulics work fine except boom swing. Valves check out OK. Could this be a flow or pressure problem to the cylinder operating the swing? … read more
Dan
Dan
Technician
6,164 satisfied customers
Do you know what wires to jump to see if the seat switch is
do you know what wires to jump to see if the seat switch is the problem for keeping the park brake locked up on a deere 320D skid steer, we have located the switch for the seat but it has 3 wires 2 re… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
615 satisfied customers
D3B catapillar 1985 model When you move the bulldozer
D3B catapillar 1985 model When you move the bulldozer forward or reverse, the left track acts like the brake is locked. Even though the steering clutch and brake is not touched. Have released all tens… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,287 satisfied customers
I just rebuilt transmission of L150E Once I start the
Hi I just rebuilt transmission of L150E Once I start the machine I test the pressures of the tranny The confusing thing is I got only forward clutch at the right spec pressure which is 196psi The rest… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,272 satisfied customers
How to unlock tracks on new holland dc85 dozer. Will not
how to unlock tracks on new holland dc85 dozer JA: Sometimes things that you think will be really complicated end up being easy to fix. The Construction Equipment Mechanic I'm going to connect you wit… read more
Dan
Dan
Technician
6,164 satisfied customers
Ia have a td12c dresser that wont move I put a new steering
ia have a td12c dresser that wont move I put a new steering cluch pump but it didn't heip it ant got but 1800 hrs on it what could it be … read more
Dan
Dan
Technician
6,164 satisfied customers
I have a bobcat s650 Seems like it's not getting gas. Fuel
I have a bobcat s650 Seems like it's not getting gas. Fuel to filter is good. But not to injector. It was running great. Shut it down to get out of machine for 5 min then went to start up. Would not s… read more
Dan
Dan
Technician
6,164 satisfied customers
With cotton lake farms. I have a samsung 210 lc-3. I had to
Hey dieseldan, this is Derek Ralph with cotton lake farms. I have a samsung 210 lc-3. I had to replace a roller on undercarriage so of course I let tension off of tracks. Before I realized it, my hand… read more
Dan
Dan
Technician
6,164 satisfied customers
Catmastertech,Can you provide any kind of schematic or
Hi Catmastertech,Can you provide any kind of schematic or writen procedure along with the following specs? As i understand K is finished bore for 9P-5708 L is finished bore for 6T3793 What is CM ?We r… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,287 satisfied customers
I need a Deere specialist, 1973 300b backhoe, enough
I need a Deere specialist JA: What is the complete model and serial number of your machine? Customer: 1973 300b backhoe JA: Are you fixing this yourself? What have you tried so far? Customer: enough q… read more
Dan
Dan
Technician
6,164 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.

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