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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26052
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Cub Cadet LTX 1045 mower Starts and runs until the brake is

Customer Question

Cub Cadet LTX 1045 mower Starts and runs until the brake is released.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.
Welcome to JUST ANSWER small engines, let me try to help you !! Seat switch, brake switch and pto switch have to complete the run circuit. It is not complete. First check the seat switch and harness, it is the most common one to cause problem.
Expert:  Curtis B. replied 1 year ago.

Welcome to JUST ANSWER small engines, let me try to help you !! Seat switch, brake switch and pto switch have to complete the run circuit. It is not complete. First check the seat switch and harness, it is the most common one to cause problem.

Customer: replied 1 year ago.
Seat switch OK. PTO Light on dash not lit, Lights up when PTO is engaged.
Expert:  Curtis B. replied 1 year ago.

Check continuity between brake witch and seat switch.

Customer: replied 1 year ago.
How do I Check continuity between brake switch and seat switch?
Customer: replied 1 year ago.
II also noticed that I have to press the brake fully down to start the engine. Is there an adjustment to the brake pedal?
Expert:  Curtis B. replied 1 year ago.

Switch may be pushed in too far.

Customer: replied 1 year ago.
Which Switch may be pushed in too far?
Expert:  Curtis B. replied 1 year ago.

brake switch pushes into the frame. Over time it can be damaged by pressure from brake pedal.

Customer: replied 1 year ago.
How do I check the brake switch?
Expert:  Curtis B. replied 1 year ago.

You need a volt/ohmmeter to check continuity.

Customer: replied 1 year ago.
I have Multimeter. What do I check?
Expert:  Curtis B. replied 1 year ago.

Check the terminals for making and breaking when the switch is pushed.

Customer: replied 1 year ago.
Is the switch Normally Open or Normally Closed?
Customer: replied 1 year ago.
Are you referring to the brake switch?
Expert:  Curtis B. replied 1 year ago.

It will have four wires, , and two internal connections, one is open and one is closed. As long as the switch changes phase, it is considered good.

Customer: replied 1 year ago.
Which of the four wires do I check?
Expert:  Curtis B. replied 1 year ago.

They will be paired, you check both pair.

Customer: replied 1 year ago.
That is on the brake pedal switch.`
Expert:  Curtis B. replied 1 year ago.

Yes

Customer: replied 1 year ago.
Where is the brake switch located?
Expert:  Curtis B. replied 1 year ago.

Page 6, item # ***** three poles, on is common.

Expert:  Curtis B. replied 1 year ago.

http://www.homedepot.com/catalog/pdfImages/76/76a6e41b-3d51-4b26-a0dd-6b8671ccfc6b.pdf

Customer: replied 1 year ago.
How do I access the switch? Do I need to remove the Brake pedal?
Customer: replied 1 year ago.
I found the switch. When I press it , the engine will start and run. I can't access it for the electrical check.
Expert:  Curtis B. replied 1 year ago.

Does engine shutoff when you release it?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
How is the switch attached to the frame?
Expert:  Curtis B. replied 1 year ago.

It has plastic clips that push through the frame, and expand to keep it from pulling back through. The plastic clips have to be held in, to back it out.

Customer: replied 1 year ago.
Based on the fact that the engine runs when the switch is pressed, do you think it is faulty?
Customer: replied 1 year ago.
What is the purpose of the Brake switch?
Expert:  Curtis B. replied 1 year ago.

Switch has two functions. One for start, and one for run. safety switch so it kills engine if it thinks no one is in seat.

Customer: replied 1 year ago.
Since the engine runs when the switch is pressed, do you think it is faulty?
Expert:  Curtis B. replied 1 year ago.

It can be bad, or the wires from it to the seat switch can also be broken.

Customer: replied 1 year ago.
Can the switch be bypassed?
Expert:  Curtis B. replied 1 year ago.

No, not without rewiring the whole tractor!

Customer: replied 1 year ago.
What if I tape the switch in the pressed position?
Expert:  Curtis B. replied 1 year ago.

I think it will then die when pto is engaged.

Customer: replied 1 year ago.
If I Determine the switch is good and wires to the seat switch are not broken, What is the next option?
Expert:  Curtis B. replied 1 year ago.

Check the seat switch in same manner, then the pto switch

Customer: replied 1 year ago.
Can we continue this discussion tomorrow?
``
Expert:  Curtis B. replied 1 year ago.

Sure, I will be here.

Customer: replied 1 year ago.
Where is the PTO switch?
Customer: replied 1 year ago.
Is it 26 on page 6 of the parts manual?
Customer: replied 1 year ago.
Curtis Are you online
Expert:  Curtis B. replied 1 year ago.

I am now!