Safety Switch issues

Willie_B2650HSDC

New member

Equipment
B2650HSDC, LA534, Backhoe, RC72-30BB
Sep 15, 2024
4
0
1
Ontario, Canada
Hello
Has anyone ran into this?
sitting on the seat and PTO disengaged....no start.
engage PTO It starts.
With PTO engaged, i can climb out of the cab and tractor still runs.
With PTO disengaged, Tractor shuts down when I leave the seat.
Complete opposite to how its suppose to work.

My guess is a bad PTO safety Switch???
 

RCW

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Lifetime Member

Equipment
BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
Apr 28, 2013
9,244
5,426
113
Chenango County, NY
Did it just start doing this?

I didn’t look at a schematic, but I believe the PTO switch is activated by the PTO lever..don’t hold me to that, but maybe the switch’s mount is just loose or out of alignment/adjustment?

Just talking from memory, so don’t take as gospel.
 
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GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
11,664
5,047
113
Greensville,Ontario,Canada
this...
With PTO engaged, i can climb out of the cab and tractor still runs.
IS a VALID 'mode of operation'.

I agree ,sounds like connector was installed wrong, though that should not be possible.

more info is needed, like 'did you replace the switch, or reinstall the connector ??
 

Dustball

Active member

Equipment
2016 B2650HSDC
Sep 15, 2023
312
188
43
Hudson, WI
Hello
Has anyone ran into this?
sitting on the seat and PTO disengaged....no start.
engage PTO It starts.
With PTO engaged, i can climb out of the cab and tractor still runs.
With PTO disengaged, Tractor shuts down when I leave the seat.
Complete opposite to how its suppose to work.

My guess is a bad PTO safety Switch???
Here are the conditions for a B2650HSD and B2650HSDC. The ON/OFF refers to the state of the safety switch, not the function.

Not one of the conditions below allows starting with the Independent PTO engaged (OFF).

1726493869809.png
 
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Willie_B2650HSDC

New member

Equipment
B2650HSDC, LA534, Backhoe, RC72-30BB
Sep 15, 2024
4
0
1
Ontario, Canada
this...
With PTO engaged, i can climb out of the cab and tractor still runs.
IS a VALID 'mode of operation'.

I agree ,sounds like connector was installed wrong, though that should not be possible.

more info is needed, like 'did you replace the switch, or reinstall the connector ??
Normally when I'm running the belly mower and don't disengage the PTO and climb out the cab the engine shuts off...This is a new issue and can only start if I engage the PTO while sitting on the sseat..
I've located what I think is the PTO safety switch and attached the two connectors together and seems to have solved the issue
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
11,664
5,047
113
Greensville,Ontario,Canada
curious as to how anyone could run, say a 3PH/PTO run chipper if the engine shuts off when you leave the seat ?
 

TheOldHokie

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Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
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113
Myersville, MD
windyridgefarm.us
I think the mid PTO has Safety and the rear does not
The answer to these things can usually be found in the manual.

For example on a L3901 the rear PTO safety switch normally shuts the engine off if you leave the seat. You can defeat that by tilting the seat forwards within 2-3 seconds of getting up.

Have you thoroughly studied your manual?

Dan
 
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