ClintBlake
Bronze Member
Another pt wouldn\'t start
Just before BobRip and I made our trip to Power-trac Mecca (other wise known as Tazewell), my 5 year old pt-422 wouldn't start. This left me with a delima - brand new grapple bucket and mini-hoe, but no tractor.
When I turned the key to run, I could hear the fuel solenoid click, but no head lights and it wouldn't even try to turn over. The battery was fully charged so I checked the fuse down by the starter solenoid, checked the ignition switch, and found out that I had 12v at the switches battery terminal with the switch off. If I turned the switch to run, the voltage dropped to about 7v and if I turned the light switch on it went to essentially zero. Based on this information and the "high quality" of the fuse holders that power-trac uses, I replaced the fuse holder.
Same results as before so I pulled the battery terminals and cleaned them just to sure. Same results so I measured the voltage at the starter solenoid. Key off - 12v, key on - 7v. Pulled the battery cables, cleaned everything, measured the cables resistance (essentially the same resistance as my meter leads) and put everything back together.
Guess what - Same Results. Gave up, drove to the auto parts store and bought a new positive cable. Put the new cable on and the tractor started right up. The old cable doesn't show signs of corrosion or any damage, and it measured very low resistance. Even when I wiggled it the resistance looked good.
Just before BobRip and I made our trip to Power-trac Mecca (other wise known as Tazewell), my 5 year old pt-422 wouldn't start. This left me with a delima - brand new grapple bucket and mini-hoe, but no tractor.
When I turned the key to run, I could hear the fuel solenoid click, but no head lights and it wouldn't even try to turn over. The battery was fully charged so I checked the fuse down by the starter solenoid, checked the ignition switch, and found out that I had 12v at the switches battery terminal with the switch off. If I turned the switch to run, the voltage dropped to about 7v and if I turned the light switch on it went to essentially zero. Based on this information and the "high quality" of the fuse holders that power-trac uses, I replaced the fuse holder.
Same results as before so I pulled the battery terminals and cleaned them just to sure. Same results so I measured the voltage at the starter solenoid. Key off - 12v, key on - 7v. Pulled the battery cables, cleaned everything, measured the cables resistance (essentially the same resistance as my meter leads) and put everything back together.
Guess what - Same Results. Gave up, drove to the auto parts store and bought a new positive cable. Put the new cable on and the tractor started right up. The old cable doesn't show signs of corrosion or any damage, and it measured very low resistance. Even when I wiggled it the resistance looked good.
