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spankyjr1
spankyjr1, Journeyman
Category: Industrial Equipment
Satisfied Customers: 2516
Experience:  I worked on all types of equipment semis,forklifts,farm,ect.
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ON a ***** ***** 2515 rt the speed well not go from fast to

Customer Question

Customer: ON a ***** ***** 2515 rt the speed well not go from fast to slow
JA: Thanks. Can you give me any more details about your issue?
Customer: Installed a new controller every thing works except the speed control
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Submitted: 10 months ago.
Category: Industrial Equipment
Expert:  spankyjr1 replied 10 months ago.

Good morning, sorry for delay, my name is ***** ***** you for asking your question, I will try and help you out.

For some reason make and model did not come through in question would you please repost but put a space between numbers so it does not get blocked by site?

Let me know

Customer: replied 10 months ago.
Simon 2 5 1 5 RT
Customer: replied 10 months ago.
Simon 2515RT or Terex Aerials 2515 RT
Expert:  spankyjr1 replied 10 months ago.

Thanks for info.

When you typed this :the speed well not go from fast to slow

What is it stuck in now, low or high?

Let me know

Customer: replied 10 months ago.
High
Expert:  spankyjr1 replied 10 months ago.

Should default to low is why I'm asking.

Click here for service manual in case you don't have one

I need to check few option here be back in a few

Expert:  spankyjr1 replied 10 months ago.

What was wrong that you had to replace controller?

Anyway it was wired incorrectly?

I'm not trying to be rude just helps to know some more details.

Thanks

Customer: replied 10 months ago.
It locked up in revers in high after we shut down and restarted it. check controller found a feed back in old controller, (short) put new controller in all worked good but speed switch did not make any difference. Bob
Expert:  spankyjr1 replied 10 months ago.

This sounds like a hydraulic problem I'm trying to find a good schematic

Have you checked for any metal in drive motors?

If you have metal there any valve could be hung up in manifold.

Customer: replied 10 months ago.
No metal in the Filter when we cut it open, it runs good and strong, just will not slow down when you flip the switch from fast to slow. Bob.
Expert:  spankyjr1 replied 10 months ago.

Thanks for info Bob.

I forgot to ask, if in raised position is it still stuck in high? You can lift drive wheels to test, this answer is assuming it is still staying in high when lifted. While raised make sure arm on lift limit switch is good along with switch. Switch is either open/closed no resistance when open and under a ohm closed.

You should have a high/low speed relay that the speed switch is wired through, make sure relay is not stuck closed.

Just swap or replace relays to confirm.

If relay does not fix I would replace Drive proportional valve and solenoid.

Customer: replied 10 months ago.
Ok well give it try. Bob
Expert:  spankyjr1 replied 10 months ago.

Okay sounds good.

Expert:  spankyjr1 replied 10 months ago.

If this has been helpful, please take a moment to use the stars at the top of the page to rate my personal service to you.

Questions or problems let me know I'm happy to assist.
Thank You,
spanky

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