Industrial Equipment

Have industrial equipment repair questions? Ask an Expert now

Ask an Expert,
Get an Answer ASAP!

I am using a Bil-Jax 3355A. The upper boom is drifting down.

Customer Question
Hi. I am using...

Hi. I am using a Bil-Jax 3355A. The upper boom is drifting down. Also, whenever another function is being used, such as the outriggers, as soon as there is pressure on the system (such as when leveling machine up with outriggers) the upper boom will go up. It doesn't stay up though. As soon as control buttons are released it begins to drift down until it is back to the stowed position. I am guessing one of the O-rings are bad in the valve controlling that upper boom, thus allowing pressure to escape as well as back pressure from other functions to enter and pressure up the system. I just don't know which valve controls that function.

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

Model: 5533A

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

Serial: 55A07-00070

Submitted: 8 months ago.Category: Industrial Equipment
Show More
Show Less
Ask Your Own Industrial Equipment Question
Answered in 4 hours by:
8/4/2017
Mechanic: Curtis B., Technician replied 8 months ago
Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 30,121
Experience: Technican turned service manager on multiple lines of equipment used in industry.
Verified

Hello! Let's see if we can can work together to get to the root of your question!

Ask Your Own Industrial Equipment Question
Mechanic: Curtis B., Technician replied 8 months ago

See the hydraulic hose routing, and the valve associated to it. See link below. You may have cylinder with internal seal leaking!

Ask Your Own Industrial Equipment Question
Customer reply replied 8 months ago
I don't understand if I have a cylinder with internal leaking, why would that boom be going up even when I'm using another function like the stabilizers which are unrelated? The lower boom is on the same hydraulic circuit, so that I could understand, but not an unrelated circuit I wouldn't think. It seems it must be getting pressure through the valve body somehow. Is it possible that the valve on my cylinder is also bad? Perhaps there are two issues, it's getting back pressure through the valve body and the valve on the cylinder itself is bad allowing it to pressure up that side. I've never had one of these cylinders apart, so correct me of I'm wrong, but I'm assuming there is a valve at the base of the cylinder that is operated electronically based on selected function? Since the lower and upper booms are serviced by the same hydraulic lines, there must be a valve on each cylinder.
Mechanic: Curtis B., Technician replied 8 months ago

It does seem like there is more than one probelm, and yes, it can be related to the solenoid valve that controls the lift cylinder. If it does not seat, it can get pressure from another function, and it could also cause cylinder to drop. Pull the solenoid valve with the boom in the stowed position, and pressures released, engine off and look for obvious damage or o'ring blown.

Ask Your Own Industrial Equipment Question
Was this answer helpful?
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 30,121
30,121 Satisfied Customers
Experience: Technican turned service manager on multiple lines of equipment used in industry.

Curtis B. 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

30,121 satisfied customers

Technican turned service manager on multiple lines of equipment used in industry.

Wayne

Wayne

Journeyman

215 satisfied customers

worked on lift trucks, and IR air compressors

Cat Man

Cat Man

Cat Engine Expert

186 satisfied customers

I am ASE Master Certified.

cumminsdr

cumminsdr

Mechanic

26 satisfied customers

Cummins Field Tech

dieseldan55

dieseldan55

Mechanic

17 satisfied customers

Road service Mechanic for Volvo Construction Equipment

spankyjr1

spankyjr1

Journeyman

127 satisfied customers

I worked on all types of equipment semis,forklifts,farm,ect.

Bradley Martin

Bradley Martin

44 satisfied customers

Field Technician at Thompson Tractor Company

< Previous | Next >

Related Industrial Equipment Questions
I have a 9250 that wont drive up the lorry ramps. Snits a
i have a 9250 that wont drive up the lorry ramps JA: What is the complete model and serial number of your machine? Customer: sn(###) ###-####its a skyjack 9250rt JA: Are you fixing this yourself? What… read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
I have a JLG 2646es.. today, when attempting to use it.. one
I have a JLG 2646es.. today, when attempting to use it.. one wheel pulls, and the brake on the opposing wheel is not releasing... i manually released the brake, and the machine now functions with one … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have a Onan Power Command 1300 Series 20kw propane
I have a Onan Power Command 1300 Series 20kw propane generator Model#GGDB-5741879. Has a Ford engine and the Ignition Control Module is Ford Power Products #1U1L-124297-DA . Started turning over very … read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
I have a biljax 3632 and it wont rotate to the right.? but
I have a biljax 3632 and it wont rotate to the right.? but goes to the left fine. What would cause this … read more
Curtis B.
Curtis B.
Technician
30,121 satisfied customers
Massey Ferguson mod 2920 LC has push blade with double
Massey Ferguson mod 2920 LC has push blade with double valve. The valve lifts the blade just fine but unless hold it will leak down rather fast. Is the problem usually in the spool o-ring on the valve… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have a 2008 S60 Genie Lift. Wont drive, steer, lift, or
I have a 2008 S60 Genie Lift. Wont drive, steer, lift, or rotate from the platform. everything else works. I can lift and rotate from the base. … read more
Curtis B.
Curtis B.
Technician
30,121 satisfied customers
Lift wont drive ,has a flashing yellow light system
lift wont drive ,has a flashing yellow light system distress … read more
Curtis B.
Curtis B.
Technician
30,121 satisfied customers
Yanmar vio-35-2 s/n25915b Mini Excavator The left travel
yanmar vio-35-2 s/n25915b Mini Excavator The left travel &boom swing is very slow and weak,all other functions are fine. P2 pressure checks fine P1 is low at the control valve,however checking the pum… read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
My reads fuse bad and doesn't want to crank on it's own or
My reefer reads fuse bad and doesn't want to crank on it's own or manually when I jump the starter it runs and shuts off … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
215 satisfied customers
How to remove stub shaft from greasable bearing side of drum
how to remove stub shaft from greasable bearing side of drum on a hysterC450A sheepsfoot packer … read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
I have a genie 2632 I put a new remote on and I can make it
I have a genie 2632 I put a new remote on and I can make it go up and down with the switch on the base but no movement with the remote, I can however make the horn honk with the remote any ideas … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
PRO 66 SNORKEL PLATFORM ROTATION DOES NOT WORK FROM GROUND
PRO 66 SNORKEL PLATFORM ROTATION DOES NOT WORK FROM GROUND OR AT PLATFORM LOCATION. WHERE DO I START TROUBLESHOOTING? … read more
Curtis B.
Curtis B.
Technician
30,121 satisfied customers
It won't start and it's throwing 1675:31. Model 10054.
Trying myself. Made sure it has fuel, oil, park brake engaged etc. … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
Catman, i have a c-15 industrial engine serial TXG05512, arr
Hi Catman, i have a c-15 industrial engine serial TXG05512, arr(###) ###-#### i have an exhaust leak problem at the head and manifold junction. Manifold pn#(###) ###-####using(###) ###-####gasket and(… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
186 satisfied customers
I am having a food truck built with equipment that totals a
I am having a food truck built with equipment that totals a load of 8531 watts. The food truck builder has installed an Onan 5500 generator (5HGJAB-1038C) and says it will handle the load. Do you thin… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I HAVE A FORKLIFT AND IT IS NEEDING A TUNE UP, ETC. IT IS A
I HAVE A CLARK FORKLIFT AND IT IS NEEDING A TUNE UP, ETC. IT IS A 4 CYLINDER GAS/PROPANE ENGINE BUT, I HAVE NO IDEA WHAT KIND (MAKE) OF ENGINE IT IS. ANY HELP WOULD BE APPRCIATED. … read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
Have a Toyota forklift that I bought from auction it is a
have a Toyota forklift that I bought from auction it is a propane forklift Model 7FGCU70 Serial number 60997 It shows code 67 what is that code… read more
Jeremy
Jeremy
Technician
Vocational, Technical or Trade Scho
104 satisfied customers
In October I purchased a continuous run diesel gen 9.5K. I t
In October I purchased a continuous run diesel gen 9.5K. I t has a Kobota D1005 Ser# ***** Code J935-00000. I need the fuel filter part # for this engine. The one on the motor is in Japanese. Please h… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
215 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