GF1800 mower slows down and stalls engine

[Craig Lee]

I recently had the PTO clutch replaced. Now clutch engages properly but after 30 minutes of mowing deck and engine slow to a stall. Service deck gear boxes and complete grease all parts on deck still doing the slow down?

 

[GreensvilleJay]

curious...
when it fails, can you immediately restart and mow or have to wait some time ?
also, can you manually spin the PTO shaft and mower blades ?
does this ONLY happen when mowing ? can you drive it for 30+ minutes OK ?

 

[Craig Lee]

curious...
when it fails, can you immediately restart and mow or have to wait some time ?
also, can you manually spin the PTO shaft and mower blades ?
does this ONLY happen when mowing ? can you drive it for 30+ minutes OK ?

Yes can restart and mow for short time, then starts slowing down again. I can spin pro and blades. Have not tried to just drive for 30 minute.

 

[Craig Lee]

Yes can restart and mow for short time, then starts slowing down again. I can spin pro and blades. Have not tried to just drive for 30 minute.

 

[pigdoc]

Is there anything wrapped tightly around a spindle under the deck?
Does anything associated with the mower get hot as the engine stalls?
Smoke? Smell? Sounds? Vibrations?

[I'm a clinical veterinarian, and when I'm vexxed, I automatically ask myself, "Have you used ALL your senses?"]
-Paul

 

[Craig Lee]

Is there anything wrapped tightly around a spindle under the deck?
Does anything associated with the mower get hot as the engine stalls?
Smoke? Smell? Sounds? Vibrations?

[I'm a clinical veterinarian, and when I'm vexxed, I automatically ask myself, "Have you used ALL your senses?"]
-Paul

I have serviced the deck and checked all the blades. Change oil in gear boxes and checked gear box for heat (bearings). Deck is good.
I'm going to change fuel filters see what happens.

 

[GreensvilleJay]

engine low on oil ?
if you can spin the blades right after it 'slows and dies' probably NOT 'mower deck' related....
could be engine siezing up ??

 

[Craig Lee]

engine low on oil ?
if you can spin the blades right after it 'slows and dies' probably NOT 'mower deck' related....
could be engine siezing up ??

Oil is good. Runs good without mower engaged. Changed fuel filters will mow tomorrow if weather cooperates. I'm retired now but had some problems with diesel equipment in summer losing power new filters helped.