B2650 stalls out when pressing pedal or engaging PTO???

DV2650

New member

Equipment
B2650HSD
Apr 3, 2024
4
2
1
Minnesota
My B2650 will start just fine, I can increase RPM with no issues, hydraulics work just fine, however, if i engage the PTO or press the pedal forward/backward, even slightly it will stall out. I thought perhaps it was the seat safety switch, so I jumped it with no luck, even zip tied the switch itself, and ohmed it out, everything checked out. I did replace the diesel as it didn't get used much this winter, replaced the fuel filter. Replaced the safety switch, and still no luck. I'm at a loss. Anyone have any suggestions on what to try next?
 

sheepfarmer

Well-known member
Lifetime Member

Equipment
L3560, B2650, Gator, Ingersoll mower
Nov 14, 2014
4,447
675
113
MidMichigan
It is how your rear is engaging with the seat switch. It is a pad velcro'd to the back of the seat. Do you have a down coat on? I have put a thin piece of Styrofoam under mine. Since I regrettably gained about 10 lbs, I don't have as much difficulty. Also it doesn't like really cold weather.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
29,776
5,960
113
Sandpoint, ID
Follow the WSM to figure out what's going on, because the most common is the Seat switch, bit it could be mutiple other things causing it too.
 

Lug66

Active member
Lifetime Member

Equipment
LX2610HSDC, Z422KWT
Jun 7, 2023
114
66
28
SW Michigan
I’d check the circuit out at the OPC controller. If the circuit checks out good then replace the OPC controller. A bad controller will act exactly like a bad safety switch.
 

Attachments

  • Love
  • Like
Reactions: 1 users

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
11,125
4,747
113
Greensville,Ontario,Canada
Before you replace the $320
B10301.png
OPC, CONFIRM it's getting the 'seat switch' signal first !
Follow the wiring diagram in the WSM Electrical section , you might have an open wire.
Since you bypassed the seat switch, it's not the switch ,sounds like a wire's been cut.#030 is the 'controller' that's $320 !! I'd hate for you to shell out $320 to replace a good OPC and when installing the new one see the cut wire that IS the problem.
 
Last edited:

DV2650

New member

Equipment
B2650HSD
Apr 3, 2024
4
2
1
Minnesota
Changed out the seat safety switch and another safety switch...still no luck...not sure where to go from here?
 

Lug66

Active member
Lifetime Member

Equipment
LX2610HSDC, Z422KWT
Jun 7, 2023
114
66
28
SW Michigan
The reason I mentioned doing the circuit testing at the OPC connection is because the OPC is the command center. If you take a voltage reading, battery on, and you don’t have a signal up to the OPC while you’re in the seat then it’s a wiring, fuse or switch issue. Right now your OPC is either getting bad data, no seat signal, or it’s getting good seat data up to the OPC but for some reason the OPC no longer acknowledges that signal. Every time you step on the pedal or engage the PTO the OPC doesn’t have any signal from the seat switch and commands the engine to stop.
 

Dustball

Active member

Equipment
2016 B2650HSDC
Sep 15, 2023
256
138
43
Hudson, WI
Engage the parking brake first then try engaging the PTO. If the engine stays on, you're looking at the seat switch wiring to the OPC or a bad OPC most likely.
 

DV2650

New member

Equipment
B2650HSD
Apr 3, 2024
4
2
1
Minnesota
Well after checking...I'm pretty sure I found the problem...MICE....chewed up some wires...going to rewire everything. I will keep you all updated. Wish they didn't use so much electrical tape and run the wires so tight...kind of a pain.
 

Attachments

Last edited: