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:

I have a cat 225 excavator. recently had both hydraulic

I have a cat...

I have a cat 225 excavator. recently had both hydraulic pumps rebuld and changed all fluid with new filters. machine worked fine for a few hours after reassembly but now has been idle for a few weeks. today the stick and bucket are slow to function. fluid levels are good and i just bleed the pilot controls for those functions. any other ideas?

Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 16 hours by:
10/11/2021
Mechanic: Dan, Technician replied 1 year ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,124
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Verified

Hi, My name is***** can follow up as needed on here. Professionals are not employees of the site but users of the site and help on here as time allows depending on their daily schedule.Sorry to hear you're having these troubles with this machine. Unfortunately, after a pump or component failure, the complete system needs to be cleaned out and all of the components inspected for metal contamination from that failure. This requires disconnecting hydraulic hoses to your control valves and all hydraulic components to inspect the ports for anything that looks like fine metal or glitter that would confirm contamination within the component. That component then needs to be disassembled and thoroughly cleaned, inspected for damage, and resealed. Simply changing the oil alone is not enough after a failure. If any of this contamination throughout the system is left behind when a new pump or component is installed, it is just a matter of time before that cross-contamination gets back into the new pump or component and further creates damage with your existing components elsewhere throughout the system. Remove your existing hydraulic filter and cut it open with a filter cutting tool for inspection. Look for what looks like fine metal or glitter. If found, it is confirmation that the system is still heavily contaminated and that there is a possibility of premature failure of your brand-new pump and other components. Check your control valve spools and your relief valve cartridges in your main control valve for contamination and damaged O-rings or other problems that would cause them to malfunction.Let's hope that you find some contamination in the valve only that might be causing a relief valve to stick open or something of that sort rather than a premature failure of your replacement component. I hope you find this information helpful. Reply back with the results of these checks if any further help is needed. It's a pleasure to help anyway I can.

Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 15,124
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Verified
Dan and 87 other Construction and Road Equipment Specialists are ready to help you
Ask your own question now
Customer reply replied 1 year ago
Dan, not sure if I reply here or ask new question. I'm taking control valves off to inspect. hoses clean but cannot get a couple of then to stop draining fluud....took cap off tank. any other suggestions?
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: 15,124
15,124 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
I have a Cat 301.5 mini excavator. The main pump, the one
I have a Cat 301.5 mini excavator. The main pump, the one connected directly to the engine, was leaking hydraulic oil from the two connecter fittings on top of the pump. So I changed the O rings where… read more
RichardH416
RichardH416
Resident Tech
Associates
75 satisfied customers
2006 Cat 304 CR excavator does not have pressure on the
2006 Cat 304 CR excavator does not have pressure on the stick What took place. I replaced two main lines from pump to valve group. 1 of them was to the stick supply. After replacing them I filled the … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Why does my catepillar 225 excavator have slow hydraulic
why does my catepillar 225 excavator have slow hydraulic function with stick and bucket … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
I have a hydraulic cylinder on a excavator bucket that
Hello Chris, I have a hydraulic cylinder on a excavator bucket that extends under load when it should be holding weight. All other cylinders on the machine operate proper. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Working on a 992D excavator. Hydraulic problems. All
Working on a 992D excavator. Hydraulic problems. All hydraulics are moving very slow. Travel, bucket, etc. What my problem? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
I have a cat 225 SN: 76U05793J8072. That is it. The problem
The problem is while operating the machine, there was a slight jar, nothing big or out of the unusual when operating on uneven surfaces. When this happened the hydraulics really slowed down (all the functions including travel), we checked the pump pressure and it's running at 4,000psi. All functions have power but not speed. This happened another time and my mechanic at the time told me he just had to adjust something, I don't know what and he is no longer employed by us. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
I have a 2014 Cat 302.7D mini excavator with 3,900 hrs that
I have a 2014 Cat 302.7D mini excavator with 3,900 hrs that has several issues. The left track is very week. The right track will not move at all unless I curl the bucket. When I curl the bucket it wi… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
My Mitsubishi Mini Excavator MSO30 controls should I say are
Sir, My Mitsubishi Mini Excavator MSO30 controls should I say are out of standard pattern. Can I switch hoses to correct this? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Pearl, I have 1993 jcb backhoe and would like to change
Gray Pearl, I have 1993 jcb backhoe and would like to change control pattern from backhoe to excavator control pattern can u advise please , many thanks Paul Sheahan. Email....***@******.*** … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Where would I check shavings after I replaced final drive on
Where would I check for metal shavings after I replaced final drive on left side Bucket will not raise and left track is binding because it's not getting fluid… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
Can you email copy of wiring diagram mitsubishi mm55sr
can you email copy of wiring diagram for cat mitsubishi mm55sr excavator? We have lost all hydraulic functions except tracking. Everything works manually on hydraulics but nothing through electrics.Th… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
newbie jumped in a 2012 bucket loader and within 10 minutes
newbie jumped in a 2012 420 bucket loader and within 10 minutes the bucket joystick is dead? rear outriggers didn't work either but now a few days later they work but the bucket is stuck extended up? … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
looking for help with a 160 lx excavator. the machine had sat
looking for help with a linkbelt160 lx excavator. the machine had sat for quite some time without being used. it has 3ooo hrs. there were issues with the machine slowing down and losing power but seem… read more
Expert
Expert
Link belt 2700C series II Hydraulic IssuesA short at the
Link belt 2700C series II Hydraulic Issues A short at the split bolt connector in the console has fried the circuit boards in the control panel, so I've converted the machine to manual controls and th… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Hello my name isXXXXX am having problems with my aux hydraulics
Hello my name isXXXXX am having problems with my aux hydraulics on a cat 277. it's been like this since I bought the machine last year. The aux hyd work but run very slow. And looses power when runnin… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
My CX225SR excavator looses power when digging a full bucket
My CX225SR excavator looses power when digging a full bucket scoop, bring the bucket back up and the power returns what may be the cause.… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
Bobcat series 100 mini excavator---The lever that moves the
Bobcat series 100 mini excavator---The lever that moves the stick in and out is very difficult to move. No problem with the bucket dump or loading. The lever will move stick in and out but is very sti… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,124 satisfied customers
I have a 1980 235 Cat excavator and recently the stick is very
I have a 1980 235 Cat excavator and recently the stick is very slow, also one track has lost power. I checked the pressure on the pumps, both pressure up to 3700 psi, pilot pressure is at 325 at the s… 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