Why would a jacobsen 14hp lawn tractor bog out when i apply the pto?
Whenever you activate the PTO, it puts an added load on the engine. It drags the RPMs down as the engine overcomes the inertia of the attachment's moving parts: blades, auger, etc. You feel and hear the RPM drop every time. If the engine speed is dragged down too far, it stops. There are several things that can cause this. I'll list the easiest to fix to hardest. Remember, you might have more than one thing wrong. Dirty carb and dull blades might stop the engine when one alone wouldn't.
Attachment needs more RPM when you hit the PTO.
Too much resistance to the implement. Mower deck in thick tall grass, snow blower clogged with snow & ice.
Blades need sharpening.
Drive belts too tight, or debris around pulleys. Blades jammed. Belts routed incorrectly after switching attachments. Underside of mower deck clogged with old grass composted over winter
Blade hub bearings need to be lubed. Need grease gun to fit the little metal nipples, called Zerk fittings & a cartridge of "all purpose" grease. BTW you should lube all Zerks regularly to protect bearings from early death.
Diagnose: Disengage PTO, turn off engine, and turn the blades manually. If there is a lot of resistance, the trouble is with the attachment, not with the engine or PTO.
Dirty air and/or gas filter; or bad gas. Air intake clogged, Mouse nests under hood. No kidding, happened to me.
Need new spark plug. Old plug can cause power drop even if engine runs.
You may need to go to a pro for more difficult work, such as a bad or broken PTO clutch, compression loss in engine, weak fuel pump, or other engine problems. Your engine is not particular or unique to your tractor. Go to the engine manufacturer's web site for troubleshooting procedures. Also, go to one the many small engine experts here on Fixya. My experience is mostly related to the working machinery.
FINAL POINT relative to all equipment problems. If the easy fixes don't work, check to see if there is any time left on your warranty (if any). If there is, or you don't know, call the manufacturer's customer service department. Even if they only give you some advice, the complaint will be logged and the warranty clock stopped if you need professional work later. Save the case # if they give you one.
Jul 23, 2014 |
Sears Ayp 6118r,jacobsen 336485,noma...