I have a 287B MTL & went to use a new brush cutter with it. It's the first time it's been used in a few months. The aux

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Customer: I have a 287B MTL & went to use a new brush cutter with it. It's the first time it's been used in a few months. The aux hydraulics will not operate. The machine does not change sounds as if it is laboring, etc. Also of note, the hydraulic interlock indicator light is illuminated, & no matter what I do it won't go out.
JA: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts.
Customer: I hope that's the case
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: The machine is a Cat 287B, 2005 Model I think, with 1,002 hours
Answered by Daniel Wilson in 19 mins 4 years ago
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Daniel Wilson
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19,988 satisfied customers

Specialities include: Auto Body Technician, Heavy Equipment Repairs, Heavy Duty Engine Repairs, Brake and Transmission Repairs

Hi my name is***** will be glad to help. Please give me some time to review your information and follow up with my responses. Also please post your machine serial number when you have a moment.
Customer
CAT0287BPZSA03516Also, my understanding is that it's referred to as a CTL (Compact Track Loader), not a MTL like I stated earlier. Thanks!

Thanks for the update. Click on this link for some testing and troubleshooting help I out together for you. Be sure to check the basics as well as the more detailed information below. Check the fuses and relays as well as the wiring harness for any damaged wires or connector pins.

Service info

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Customer
Thanks for the diag sheets you sent; however, they don't seem to pertain to the exact issue. I should clarify: the A1 & A2 buttons seem to be working fine. They pressure up & flow over the reliefs by the sound of it (there is nothing attached at the quick couplers to those connections). The real problem seems to be with the proportional roller switch. As I mentioned, the hydraulic interlock light is illuminated, & it never has been before. There is no function either direction with the proportional roller. Do you have any troubleshooting info for the roller switch? I've attached a photo to show the hydraulic interlock light. Thanks.
I am away from my office now since it's the weekend but I may be logging in periodically if I get back however it is something I won't be able to have access to until I get back to my computer since I am mobile now. I know I have a diagram but not so sure I have a procedure just for that particular switch other than standard troubleshooting using the electrical schematic and a digital multimeter.
Customer
An electrical schematic would be wonderful, I'm reasonably knowledgeable with one. Thanks!

Hi sorry for the delay. Family medical emergency happening . I posted an offer for a premium service. Let me know once accepted on here so I know to upload the link on my next available login.

Customer
Are you offering the full machine electrical schematic for $26, or just the section pertaining to the hydraulic interlock indicator? Thanks!
Customer
Hope your family's OK too, by the way)
Thank you... It is currently touch and go I may have to make an emergency trip to the West Coast as I'm on the East Coast now. But yes that is for the complete.

I posted the link in the private contact window above to copy and paste in your browser. Let me know once you have successfully accessed it so I know when it is safe to close out.

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