LX3310 Cab PTO Switch sticking when hot

Old Machinist

Well-known member

Equipment
Kubota LX3310 cab, JD 4310, NH 575E cab backhoe, JD F725, Swisher 60", etc.
May 27, 2024
420
460
63
NE FL
The last couple of times I have mowed when I disengage the PTO and get out the engine shuts off as if the PTO is still engaged. It won't restart until I let it cool and operate the PTO lever on and off then restart.

Switch looks like it might be impossible to access with the cab on but I haven't gotten under it to verify. The WSM shows the switch right on top of the transmission.

Anybody run into this an have any tips to access the switch?
 

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
33,624
8,865
113
Sandpoint, ID
That's not a switch, it's a hydraulic valve the likelihood of it being "bad" is highly unlikely.
Could be that the linkage needs adjusted or that you have debris that's not allowing to disengage.

If it's under warranty then I would get the dealer to look at it.
FYI: That's a $1400 valve, not something that you want to randomly mess with.
 

Old Machinist

Well-known member

Equipment
Kubota LX3310 cab, JD 4310, NH 575E cab backhoe, JD F725, Swisher 60", etc.
May 27, 2024
420
460
63
NE FL
The manual says it's a switch.
pto-switch.jpg


The PTO engages and disengages fine. The safety switch isn't closing when I disengage the PTO so it thinks it's still engaged when I get out of the seat. Engine shuts off and won't restart. After it cools off the switch will close again and I can restart and resume operation.