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Toro Z-Master 74244 cut off when I disengage brake.

Customer Question
Toro Z-Master 74244 cut off when I disengage brake.
Submitted: 2 years ago.Category: Small Engine
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Answered in 4 minutes by:
8/29/2015
Technician: JohnF2015, Technician replied 2 years ago
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,157
Experience: Owner/Service Technician at S & J Small Engines
Verified

Hi, my name is***** will be assisting you.

Have you tried running the machine without the seat switch jumper? Some of the switches are normally open and some are normally closed so if you jumper the seat safety wiring it actually sends signal to the rest of the system just like if you were out of the seat. It sounds like a seat safety switch problem for sure.

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Customer reply replied 2 years ago
Let me start from the begining. I started the mower up and disengaged the break. Motor shuts down. so I'am thinking break switch is gone bad. Jump break switch and restart mower. get to yard and engage PTO motor shuts down . OK its the seat switch jump that same result. I had a spare relay so on a chance i replaced that Same result.
Technician: JohnF2015, Technician replied 2 years ago

Did you try to run it without the jumper in the seat switch wiring? With the wire unplugged from the switch.

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Customer reply replied 2 years ago
same result mower runs till PTO is engaged
Technician: JohnF2015, Technician replied 2 years ago

Does the engine die as soon as you try to engage the PTO? Do you have the brake switch hooked back up now?

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Customer reply replied 2 years ago
as soon as I engage. No break switch is still jumped
Customer reply replied 2 years ago
if i hook break switch up i can't disengage break or motor shuts down
Technician: JohnF2015, Technician replied 2 years ago

Has any of the switches been replaced that you are aware of?

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Technician: JohnF2015, Technician replied 2 years ago

Has any of the switches been replaced that you are aware of?

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Customer reply replied 2 years ago
No I purchased mower new. I have replaced the starter and the battery and thats it
Technician: JohnF2015, Technician replied 2 years ago

How many wires go into you seat safety switch?

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Customer reply replied 2 years ago
2 wires It is a plunger style not on seat
Technician: JohnF2015, Technician replied 2 years ago

Your seat safety switch is a normally closed switch, when you sit in the seat it opens the circuit to tell the rest of the system that you are in the seat. This being the case we can't put a jumper in the wiring, it will act just like if you were not in the seat.

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Technician: JohnF2015, Technician replied 2 years ago

Your seat safety switch is a normally closed switch, when you sit in the seat it opens the circuit to tell the rest of the system that you are in the seat. This being the case we can't put a jumper in the wiring, it will act just like if you were not in the seat.

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Customer reply replied 2 years ago
Ok it is not jumped, and we have tried it plugged up and un plugged. Same results
Customer reply replied 2 years ago
i understand what you are saying about seat. what is causing PTO to shut motor off when engaged
Technician: JohnF2015, Technician replied 2 years ago

If the system doesn't recognize that you are in the seat then one of two things will happen. When you release the brake lever the engine will die and or when you engage the PTO the engine will die. They(OSHA) don't want this machine to be able to move or the blades run with no one in the seat, it is all to do with safety.

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Technician: JohnF2015, Technician replied 2 years ago

Try this with everything hooked up. Can you engage the PTO and the machine continue to run with the brake lever still locked?

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Customer reply replied 2 years ago
with everything hooked up and brake engaged the PTO still shuts motor down
Technician: JohnF2015, Technician replied 2 years ago

Let's unhook the seat switch and see what happens.

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Customer reply replied 2 years ago
You have already asked me to do that 12:53 post it gave me the same result
Customer reply replied 2 years ago
Sounds like you are not going to be able to help me
Technician: JohnF2015, Technician replied 2 years ago

It has to be a problem with the seat safety switch that is killing the engine. I am going to opt out of your question, maybe one of the other experts here will have some other suggestions for you.

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JohnF2015
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,157
1,157 Satisfied Customers
Experience: Owner/Service Technician at S & J Small Engines

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