I have a GF 1800 mower (diesel, hydrostatic) that the motor shuts off instantly when you engage the pto for the mower blades to run. I installed a new safety switch for the pto lever thinking that was the culprit. I removed the seat and jumped the seat safety switch and same thing still happened. I then jumped the pto kill switch on the other side of the mower and still no luck. The mower runs fine and the blades turn freely. I had a pack rat visit recently but I can't see any damage to the wires, in fact I can't tell where the wires start and finish as they are in conduit. What to do?
GF 1800 motor stops when pto is engaged
- Thread starter mrbig1too
- Start date
The engine starts and runs fine and the mower can be driven at any speed. When the pto shift lever is moved to engage the blades the blades start turning and the engine shuts off. The blades turn freely. They are not stopping the engine. The engine just goes dead like the key has been turned off. Thx
85Hokie
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
I jumped the pto safety switch and the seat safety switch and the same thing still occurs. Replaced the pto lever safety switch. The engine shuts off when the blades are engaged. Does the problem have to be somewhere in the wiring if it is not in the switches?
Does the brake on your machine have to be set in order to start? I had one once and can't remember. If you have to press the brake to start, you might have a problem with a brake safety switch.
85Hokie
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Staff member
Lifetime Member
Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Has to be a broken wire or something in the mix, IF the switches are being bypassed ........can you take a switch out and test it for continuity with an OHM meter just to make sure that it is working when bypassed?