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 287b skidd steer and when at full throttle its revs…

I have a 287b skidd...
I have a 287b skidd steer and when at full throttle it's revs up and down what should I be looking for I change fuel filter
Show More
Show Less
Ask Your Own Construction and Road Equipment Question
Answered in 2 minutes by:
1/5/2014
Mechanic: catmastertech, Technician replied 8 years ago
catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,002
Experience: Field service technician for CAT 19 years.
Verified

catmastertech :

Have you check the fuel for contamination?

catmastertech :

Is any water in the fuel?

catmastertech :

Did gasoline get in the fuel?

catmastertech :

Does the engine have any power?

Customer: Change fuel filter,no gas got into fuel,did have summer fuel though for I bought this machine from the USA and I live in Alberta it has power
catmastertech :

Can you tell if the engine has a misfire or run rough?

catmastertech :

What is the serial number of this machine?

Customer: Seems to run smooth enough
Customer: Sin Cat 0287BAZSA03703
Customer: Is there a governor
catmastertech :

Yes it has a governor but, it is built in the front cover on some engines.

catmastertech :

Other models has it in the fuel injection pump.

catmastertech :

I would test the lift pump first. It has been updated for some problems or you have trash in the lines. It could be wax build up too, if it has #2 diesel in it.

catmastertech :

Here are some details for testing the lift pump.

catmastertech :

  1. Collect the following data in order to determine if the problem is related to the fuel lift pump. Collect the following information twice. Collect the data when the engine is at low idle. Collect the data when the engine is at high idle.


    1. Obtain the voltage on the pump. The voltage should be 11.5 volts to 14.5 volts. If the voltage is out of the range, the problem may exist within the electrical circuit.

    2. Obtain the current. The current should be between 2 and 3.5 Amp. If the voltage is out of the range, the problem may exist within the electrical circuit.

    3. Obtain the vacuum for the inlet on the pump. The pressure should be −10 to 0 kPa (−1.5 to 0 psi). If the vacuum for the inlet is too high, check the fuel lines for damage, restrictions or debris.

    4. Obtain the outlet pressure on the pump. The pressure should be 20 to 70 kPa (3 to 10 psi). If the outlet pressure is low, replace the filter.

    5. Ensure that there is fuel flow at the pump.


  1. If the pump fails any of the tests that are listed above, replace the pump and the filter unit. If the engine symptoms are resolved by the replacement of the pump and the filter unit, return the pump to your Caterpillar dealer. Also, return the results of the test to your Caterpillar dealer.




      1. Collect the following data in order to determine if the problem is related to the fuel lift pump. Collect the following information twice. Collect the data when the engine is at low idle. Collect the data when the engine is at high idle.


     



  • Obtain the voltage on the pump. The voltage should be 11.5 volts to 14.5 volts. If the voltage is out of the range, the problem may exist within the electrical circuit.

  • Obtain the current. The current should be between 2 and 3.5 Amp. If the voltage is out of the range, the problem may exist within the electrical circuit.

  • Obtain the vacuum for the inlet on the pump. The pressure should be −10 to 0 kPa (−1.5 to 0 psi). If the vacuum for the inlet is too high, check the fuel lines for damage, restrictions or debris.

  • Obtain the outlet pressure on the pump. The pressure should be 20 to 70 kPa (3 to 10 psi). If the outlet pressure is low, replace the filter.

  • Ensure that there is fuel flow at the pump.



  • If the pump fails any of the tests that are listed above, replace the pump and the filter unit. If the engine symptoms are resolved by the replacement of the pump and the filter unit, return the pump to your Caterpillar dealer. Also, return the results of the test to your Caterpillar dealer.


Customer: On the primer pump is there a tube I that would go into the filter or does it just sit on top
catmastertech :

Does this engine have the electric lift pump mounted on the filter housing?

Customer: Yes
catmastertech :

Where is the priming pump you are describing?

Customer: I'll try these thing
catmastertech :

Ok, You also need to see if fuel flow to the filter is free. Be sure to mark your lines, it is important to the flow for the inlet and outlet to not be crossed.

catmastertech :

The third line on the side is for a vent to help remove air.

catmastertech :

After the above tests are performed, try running flow into a bucket to see if it is clean and steady. I think you will get about 2 liters a minute. I cannot find the exact spec but, I think it will be close.

catmastertech :

Also check the return fitting on the injection pump. This is a line connected at the front of the pump next to the front drive gear.

catmastertech :

Verify the fitting is clean and open. Save any trash you may find. It could be helpful later to determine if the pump is failing.

catmastertech :

If you need more help on this, please feel free to ask more question. I will be glad to help.

catmastertech :

Thanks for using JustAnswer!

catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,002
Experience: Field service technician for CAT 19 years.
Verified
catmastertech and 87 other Construction and Road Equipment Specialists are ready to help you
Ask your own question now
Customer reply replied 8 years ago
I have a 2006 Volvo MC90 skidd steer loader and the hydraulic oil temp light keeps coming on and it's minus 30 here the tank is in operating range for oil what should I be looking for
Mechanic: catmastertech, Technician replied 8 years ago

I would look to see if the temperature gauge is correct first. If the gauge and actual temperature match, check the wire to the light switch for a short or open circuit.

 

Most indicator lights will work by open and short of the ground wire. If the wire see a ground at the switch, it may turn the light on. (or off depending on how it is setup)

 

So if the wire is bare and touches the frame, the same could happen. Also, depending on how it is wired, a broken wire could do the same problem.

 

If the light is on a sensor, it could also indicate the oil is too cold. A few new CAT machines do this but, not the skid steers.

 

I only work on CAT machines so, this is more of a generic help answer.

If you still do not find the problem. Post a new question on this site. I do know one guy that does Volvo machines answer questions, I am not certain of his name at this time though.

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 catmastertech Your Own Question
catmastertech
catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4,002
4,002 Satisfied Customers
Experience: Field service technician for CAT 19 years.

catmastertech is online now

Related Construction and Road Equipment Questions
I have a cat 287b. It doesn't want to turn from stationary,
I have a cat 287b. It doesn't want to turn from stationary, but will turn fine while moving forward and backward … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,216 satisfied customers
I have a cat 287b skid steer sn zsa 04428 - it doesn't have
i have a cat 287b skid steer sn zsa 04428 - it doesn't have a tachometer, what should the max rpm be for this machine, and how can i check it with no factory guages?… read more
PAPA Chris
PAPA Chris
Field Service Technician
Automotive Technology
44 satisfied customers
I have a pc50uu-1 excavator. Trying to bleed .got it started
I have a pc50uu-1 excavator. Trying to bleed .got it started but only runs on idle speed and a bit rough thats at full throttle. Are the any bleeder spots on high pressure pump? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,216 satisfied customers
Where does the safety switch go to? Kobelco mk200lc. Nothing
nothing it was fine yesterday today it wouldn't rev up and now no hydraulic … read more
Ramon Capellan
Ramon Capellan
owner / operator
Auto Mechanics
25 satisfied customers
It has an flashing driver warning light and will not
It has an amber flashing driver warning light and will not throttle up. It just idles along … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,002 satisfied customers
I have a cat 287d skidstrr that you have to give a lot of
Hey I have a cat 287d skidstrr that you have to give a lot of throttle for it to move ( track forward or backwards) how ever the loader functions work great. Wondering if the pump is on its way out? I… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,002 satisfied customers
Curtis, I believe I found that part I showed you the other
Good morning Curtis, I believe I found that part I showed you the other day lol. It appears to be a 1st and reverse locker that sits next to the shifter lol. Anyway I was messaging you this morning to… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Looking at buying a used PT-110 Terex skid steer. It will
Looking at buying a used PT-110 Terex skid steer. It will start but will not rev up. Radiator is full and oil looks good. Make me think its not getting fuel. Could it be fuel filter and if so where is… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Followup question on CAT 287B oil filter. I destroyed the
Followup question on CAT 287B oil filter. I destroyed the oil filter and tried to punch it free while it was still mounted to the engine. It looks like there are 2 bolts..a large 1 inch 5/8 and a smal… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,002 satisfied customers
2006 cat 287B skid steer not getting power to fuel primer
2006 cat 287B skid steer not getting power to fuel primer pump … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,216 satisfied customers
Lg500 will not rev up when starting at 1/4 throttle starting
lg500 will not rev up when starting at 1/4 throttle starting at full throttle will run at full rpm but dies in about 2 minutes … read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
Would a bad spray pattern on injector cause high idle
Hi, would a bad spray pattern on injector cause high idle miss on 3306di (D5B).Machine starts ok and runs fine at low revs, at high idle the more you load the engine up the better it goes - as in you … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,002 satisfied customers
Hi Tech , my compressor Ive owned and used to close pools for
Hi Tech , my compressor Ive owned and used to close pools for 2 years , now will build psi then the deutz diesel will not kick in its next drive and maintain psi . It will do what I need , however I o… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 satisfied customers
I have a 2006 mc90 skidd steer and oil sensing light is on
I have a 2006 mc90 skidd steer and oil sensing light is on and the oil level is fine what I be looking for… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
299 satisfied customers
I have a 287b skid steer with engine 3044 serial# XXXXX
I have a 287b skid steer with engine 3044 serial# XXXXX The engine was not running good it was choking at full throttle . So i replaced the fule filter and it will start and work good at idel once you… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
1,298 satisfied customers
How do you access the ECMs on a CAT 287B skid steer? I have
How do you access the ECMs on a CAT 287B skid steer? I have a 2006 287B serial # XXXXX and I am trying to access the ECMs to check the connections and wiring. I have removed the 10 or so bolts from th… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
4,002 satisfied customers
Dear Sir i have a kamatsu crawler with a cummins PT fuel
Dear Sir i have a kamatsu crawler with a cummins PT fuel pump, ive changed all the filters and when i started it, it ran at full speed and would not shut down, then after a few minutes it shut down to… read more
DR.Cummins
DR.Cummins
Field Service
High School or GED
2,391 satisfied customers
i am trying to find out what the fuel filter number is XXXXX my
i am trying to find out what the fuel filter number is XXXXX my mustang MTL25 skidd steer is . it has the yanmar engin… read more
Curtis B.
Curtis B.
Technician
Associate Degree
2,324 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