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

Have a 2006 hitachi zx75us. With the machine sitting there…

Customer Question
Have a 2006 hitachi...

Have a 2006 hitachi zx75us. With the machine sitting there swing break set there is a fair amount of movement back and forth if I push on the dipper arm. Like there slop in the swing break

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

Zx75us *1ccp030410*

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

Yes. Haven't tried anything yet

Mechanic's Assistant: Is there anything else the Construction Mechanic should know before I connect you? Rest assured that they'll be able to help you.

The slew ring is warn not sure if it has anything to do with it

Submitted: 10 months ago.Category: Construction and Road Equipment
Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 26 minutes by:
11/25/2021
Mechanic: Dan, Technician replied 10 months ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,845
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. I am not available for
phone calls. If the site flags for a call, you can either disregard
it or your call request will be posted for other professionals who
may be logged into the site at the time to accept your request offer
if they choose to do so. Please give me a few moments to familiarize myself with your question and then follow up with my recommendations.

Ask Your Own Construction and Road Equipment Question
Mechanic: Dan, Technician replied 10 months ago

Sorry to hear you're having these troubles with this machine. Check to see if there is any play in the swing bearing around the perimeter between your upper car body and the track frame. If so this should be resolved because it can also damage your swing gearbox and potentially your hydraulic swing motor by putting excessive force on the pinion gear resulting in potential swing gearbox failure as well. Be sure to check the oil level and condition for any traces of trash or debris that would flag a mechanical failure existing. Check in your hydraulic filter for what looks like fine metal or glitter within your oil and filter. Check for any potential travel related problems that would also indicate a possible problem with oil bypass beyond your Rotary manifold seals going to your travel motors if you are experiencing any travel related problems but all your upper functions are operating normal. 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.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 10 months ago
I checked the swing bearing already for lose bolts and also the swing motor and they were good. The right side travel motor is weak when you try to cut on it
Mechanic: Dan, Technician replied 10 months ago

Reseal your Rotary manifold if you are experiencing travel motor problems. But there is still a problem after the Rotary manifold is resealed then check for any signs of metal or other trash and debris that would flag or confirm a swing motor failure. Confirming your pressures from your main control valve will also help you further isolate things between the pump and control valve or the actual component within the circuit. Excessive case drain return pressure from your drive motors would indicate excessive internal leakage with that function deadheaded and a hose run into an empty 5 gallon bucket.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 10 months ago
Ya I'm in the process of buying a reseal kit for that I'm just going to do it and that should fix that problem. Hydraulic filters change on time never notice anything out of the norm after cutting a filter open. I'm going to open up some more panels today and see if there's anything weird with the swing bearing and pinionI know my swing bearing is nit in the best of shape just wondering if that could cause my break slop
Mechanic: Dan, Technician replied 10 months ago

Of course it can. A little bit of play at the swing bearing equals a lot of play at the bucket.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 10 months ago
Thanks I'll get back to you on what I find
Mechanic: Dan, Technician replied 10 months ago

You are very welcome.

Ask Your Own Construction and Road Equipment Question
Customer reply replied 10 months ago
I have another question for you. I just bought new pin and bushings for the boom where it connects to the the frame the bushings are a little loose on the pin. Will this tighten up after I press these into the boom?
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: 14,845
14,845 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 sk135sr and the slew left and right it clunky?
Hi I have a sk135sr and the slew left and right it clunky? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I have a problem with FIAT-HITACHI 450 LCH.3. with the
good evening .I have a problem with FIAT-HITACHI 450 LCH.3. with the movements. when I do the lever of the left movement in front of me, it lowers my puma, it confuses two movements?or something is st… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I have an Ex120-3 I'm experiencing the engine being
I have an Ex120-3 I'm experiencing the engine being overwhelmed when I am operating 2 or more controls or when I am pulling the dipper arm in mid stroke … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I just replaced a hydraulic hose on a Cat 314c excavator but
Hi there, I just replaced a blown hydraulic hose on a Cat 314c excavator but now some functions are very slow … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
Australia. Have a cat 322bl excavator. Slew ( swing) brake
Not sure how to locate the slew solenoid. I can see 4 solenoids, and accumulator tank. Which solenoid activates slew brake. Cheers ***** ***** … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I have a Kubota KX4 mini excavator with slop in the slew,
I have a Kubota KX4 mini excavator with slop in the slew, What do i have to do to fix … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
My Jcb 160 slew solenoid has started to give trouble and i
Good morning Pearl my Jcb 160 slew solenoid has started to give trouble and i got one but location for replacement i cannot seem to find thank you … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I'm looking to buy a kubota kx161 mini excavator, it's a
I'm looking to buy a kubota kx161 mini excavator , it's a 2004 with 5,000 hrs but owner says the swing break is lazy and does not stop,as it should . What should I look for ? Thanks scott … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
Kubota kx040-4 mini excavator slew query. KUBOTA KX040-4G
KUBOTA KX040-4G Serial number 23260 vin JKUK0404P01H23260 … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
Komatsu PC100-5 I have an issue with the dipper arm not
Komatsu PC100-5 I have an issue with the dipper arm not extending out. It comes in but it won't extend. I had this issue last year and was able to wiggle the control stick back and forth and it eventu… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I have a pc50mr2 the pilot pump let go and the screen let
Hi I have a pc50mr2 the pilot pump let go and the screen let some metal through the system now every function works apart from the slew takes a long time for the slew brake to engage. Where should I l… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
2011 290 LC. There is a metalic tap sound when i fully
2011 290 LC. There is a metalic tap sound when i fully extend the stick and reverse the contol to retact it. Notice it on the boom lift to a lesser degree. It also seems there is some free play at all… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I keep bending the dipper ram. The machine operates fine for
I keep bending the dipper ram. The machine operates fine for a few digs, and then the dipper ram bends I have replaced the entire hydraulic piston and case with the same result. It is a MD-11 … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I have hydraulic fluid leaking from under the cab of my Bob
I have hydraulic fluid leaking from under the cab of my Bob Cat 337. Is it the swing motor?… read more
Fieldtech59
Fieldtech59
416 satisfied customers
I have a yutani 140 and the swing bearing must be bad as the
I have a yutani 140 and the swing bearing must be bad as the oil comes out somewhere in the center and has covered the rollers. How deep do I have to go to fix it? Can I pull the swing motor and gear … read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
299 satisfied customers
Hi My name is XXXXX XXXXX am working on a Kobelco markIII sk 100.
Hi My name is XXXXX XXXXX am working on a Kobelco markIII sk 100. The problem happened when the barrel end for the dipper blew a line. Now when u swing left or right the dipper comes in under pressure… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
Hi I have an old mid 90s Hitachi ex55ur excuvator and for
Hi I have an old mid 90's Hitachi ex55ur excuvator and for no apparent reason the actions that function when either of the control levers are pulled towards the driver do nothing, all other operations… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,845 satisfied customers
I have a komatsu pc300-6 and there is too much oil in the slew.
I have a komatsu pc300-6 and there is too much oil in the slew. It was fine when it started work this morning, and now t is overfull and overflowing a bit. I am guessing it has something to do with th… read more
Steve
Steve
Mechanic
High School or GED
42 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